18th week of 2010 patent applcation highlights part 23 |
Patent application number | Title | Published |
20100109497 | Refrigerator and/or Freezer - The present invention relates to a refrigerator and/or freezer with a door or flap for closing the appliance interior, with a hinge, by means of which the door or flap can be swivelled relative to the body of the appliance, wherein the hinge includes means for producing a closing force acting in closing direction of the door or flap, and with a damper which at least over a part of the closing movement of the door or flap applies a force directed against the closing movement of the door or flap, wherein the means for producing a closing force include an eccentric and means which exert a force that acts on the eccentric and is dependent on the opening angle of the door or flap. | 2010-05-06 |
20100109498 | System for moving a set of shelves of a refrigeration appliance and refrigeration appliance - The present invention refers to a system that is able to provide movement over three stable stages of a set of shelves of a refrigeration appliance. The said refrigeration appliance comprises at least one refrigeratable cabinet. The said set of shelves comprises at least one front shelf and one rear shelf associable to each other. The said set of shelves is associated to the refrigeratable cabinet by means of at least one side bar provided with a first accommodating portion and a second accommodating portion that are substantially flat. The front shelf is supportable by the first accommodating portion and the rear shelf is supportable by the second accommodating portion. The first accommodating portion has a difference in height in relation to the second accommodating portion as to allow an horizontally aligned juxtaposition between the front shelf and the rear shelf. The front shelf is dissociable from the first accommodating portion and is able to be superimposed in relation to the rear shelf supportable by the second accommodating portion. The rear shelf has its first end provided with a pivoting element associated articulately to the second accommodating portion of the side bar. The pivoting element is able to allow the angular movement of the set of superimposed shelves from an initial horizontal position to a final substantially vertical position. | 2010-05-06 |
20100109499 | PAR STYLE LAMP HAVING SOLID STATE LIGHT SOURCE - A PAR style lamp is provided having a solid state light source, such as LEDs. The lamp includes a PAR-shaped housing, and an electrical contact carried by the housing and configured to receive input power. An illumination assembly is disposed in the housing and is electrically connected to the electrical contact to receive power. A heat dissipation assembly disposed in the housing and in thermal communication with the illumination assembly to facilitate the dissipation of heat during use of the lamp. The heat dissipation assembly is also electrically isolated from the illumination assembly. | 2010-05-06 |
20100109500 | LIGHT GENERATING UNIT - A light generating unit is provided herein which contains a light generating member using LED, a heat dissipating member, and a transparent reflective member. The light generating member is configured on the heat dissipating member and the transparent reflective member is configured in front of the light generating member. Inside the transparent reflective member and opposing the light generating member, a transparent reflective element is provided. Light projected into the transparent reflective member is thereby reflected and diffused. A second light emitting body could be provided in front of the transparent reflective member to increase the light coverage angle and area, and to increase the dazzling effect. | 2010-05-06 |
20100109501 | CONNECTOR AND LIGHT SOURCE APPARATUS - A connector adapted to be disposed on a carrier and electrically connected to the carrier is provided. The connector includes an insulating base and two electrodes. The insulating base has a first side surface, a second side surface, a bottom surface, and two through holes. The bottom surface connects the first and the second side surfaces. The through holes extend from the first side surface to the second side surface. The electrodes respectively penetrate the through holes. Each electrode has a bar portion and a bending portion extending from the bar portion. The bar portion is located in the corresponding through hole and protrudes away from the first side surface. The bending portion extends on the second side surface and toward the carrier. An end of the bending portion penetrates through the carrier and is electrically connected to the carrier. A light source apparatus is also provided. | 2010-05-06 |
20100109502 | SPARK PLUG MANUFACTURING METHOD, AND SPARK PLUG - There is provided according to the present invention a manufacturing method of a spark plug that includes a cylindrical metal shell, a cylindrical ceramic insulator retained in the metal shell, a center electrode retained in the ceramic insulator and extending in an axial direction and a ground electrode having a rear end portion fixed to the metal shell and a front end portion formed with a protruding region facing a front end portion of the center electrode with a gap left therebetween and being of substantially uniform thickness except for an area where the protrusion is formed. The spark plug manufacturing method includes a press forming step for pressing the whole of a ground electrode material for constituting the ground electrode, so as to form a protruding region on a front end portion of the ground electrode material and a welding step for, after the press forming step, welding a rear end portion of the ground electrode material to the metal shell. | 2010-05-06 |
20100109503 | METHOD AND APPARATUS FOR POSITIONING A CERAMIC INDUCTION DISCHARGE BODY RELATIVE TO AN INDUCTION COIL - An electrodeless or induction ceramic HID lamp includes a ceramic arc body having a generally spheroidal portion enclosing a discharge chamber and an induction coil received around a perimeter portion of the spheroidal portion. At least one leg extends from the spheroidal portion of the arc body. A mounting structure connects the arc body to the surrounding lamp assembly. In one arrangement, a mounting tube is received over at least a portion of the leg, and may further include a light transmissive shroud that also abuts with the induction coil to precisely locate the arc body relative to the coil. In another arrangement, first and second mounting members extend from spaced locations of the arc body, either as pins or legs extending from the spheroidal portion, or radially extending legs from an equatorial portion of the arc body. In still another arrangement, a ceramic mounting member extends from the arc body and includes a thin peripheral rim having spaced ridges to engage spaced locations of the induction coil. | 2010-05-06 |
20100109504 | STARTING COIL FOR INDUCTION LIGHTING - Life of a starting conductor or coil in an induction lamp is significantly improved with the present disclosure. A mechanical support supports the starting coil adjacent the arc body of the lamp and has features that allow the starting coil to mount thereon. The mechanical support may be made of a high temperature material such as glass, quartz, or ceramic so that light from the lamp is not blocked. In another embodiment, the starting conductor is protected from oxidation by fully encasing the starting conductor within the high temperature material. In still another embodiment, a thin coating of a high temperature material that may or may not be light transmissive could be used as an alternative manner of support. | 2010-05-06 |
20100109505 | Dielectric Barrier Discharge Lamp Configured as a Double Tube - A dielectric barrier discharge lamp comprising: a discharge vessel that comprises an outer tube and an inner tube, wherein the inner tube is arranged coaxially inside the outer tube, and wherein the inner tube and the outer tube are connected to one another in a gastight fashion, as a result of which a discharge space filled with a discharge medium is formed between the inner and outer tubes; and a first electrode and at least one further electrode, the first electrode being arranged inside the inner tube, wherein the first electrode is configured as a tube, the tube being provided with at least one slot that has a component locally or at least in some sections, both in an axial and in an azimuthal direction with respect to the longitudinal axis of the tube. | 2010-05-06 |
20100109506 | LAMINATED FLAT LAMP AND ITS MANUFACTURING PROCESS - A laminated flat lamp and its manufacturing process, including: two walls in a form of first and second glass sheets held parallel to each other and sealed by an inner seal, defining an internal space including an electrically supplied visible and/or ultraviolet light source; a first electrode associated with a first glass sheet and a second electrode associated with the first or the second glass sheet; at least another glass sheet, as a first glass backing, joined to the first sheet via a plastic interlayer film; and a peripheral seal made of a polymeric material masking the groove external to the seal and extending beyond the edges of the first and second glass sheets. | 2010-05-06 |
20100109507 | IMAGE DISPLAY APPARATUS - An image display apparatus includes a rear plate including electron emitting devices; a face plate including light emitting members, anode electrodes, partition members each disposed between adjacent light emitting members, and strip-shaped resistive members disposed on the partition members and connecting adjacent anode electrodes to one another; and a spacer disposed between the rear plate and the face plate, wherein the partition members include protrusions protruding so as to be closer to the rear plate than portions of the partition members on which the strip-shaped resistive members are disposed, and the spacer contacts the protrusions of the partition members. | 2010-05-06 |
20100109508 | M-C-N-O BASED PHOSPHOR - M-C—N—O based phosphors having high emission intensity are provided without using heavy metals, rare metals, and special activator agents. Colors of the M-C—N—O based phosphors can be changed by adjusting a peak top of an emission spectrum. Highly environmentally-compatible polymer dispersions, inorganic EL devices, light emitting devices, fluorescent tubes, and the like are also provided, which use the M-C—N—O based phosphors. | 2010-05-06 |
20100109509 | COPPER-CONTANING SILICA GLASS, METHOD FOR PRODUCING THE SAME, AND XENON FLASH LAMP USING THE SAME - It is an object of the present invention to provide a copper-containing silica glass which emits fluorescence having a peak in a wavelength range of from 520 nm to 580 nm under irradiation of ultraviolet light with a wavelength of 400 nm or less, and which is excellent in long term stability even in the high output use. | 2010-05-06 |
20100109510 | FUNCTIONALIZED CARBON NANOTUBES - Carbon nanotubes are grown on a first substrate. The CNTs grown on the first substrate are immersed in a biological solution at a predetermined depth to functionalize ends of the CNTs with a biological molecule. The functionalized CNTs are harvested from the first substrate. A second substrate is functionalized with a complementary biological modification, which is a complementary binding partner to the biological molecule functionalized to the ends of the CNTs. The functionalized CNTs are attached to the second substrate by way of the complementary binding partner. | 2010-05-06 |
20100109511 | ORGANIC LIGHT EMITTING DISPLAY AND METHOD OF MANUFACTURING THE SAME - An organic light emitting display and a method for manufacturing the same are provided in one or more embodiments. For example, an organic light emitting display may include a first substrate including a plurality of main-pixel areas each of which may include a plurality of sub-pixel areas and an insulating layer pattern arranged on the first substrate. The insulating layer pattern may include an inclined surface having an inclination angle with respect to the first substrate and corresponding to each sub-pixel area. A first electrode may be arranged on the inclined surface, an organic light emitting layer may be arranged on the first electrode, and a second electrode may be arranged on the organic light emitting layer. | 2010-05-06 |
20100109512 | ORGANIC LIGHT EMITTING DIODE DISPLAY - An organic light emitting diode (OLED) display. The OLED display includes a first substrate member, a first conductive wire having a contact region and formed over the first substrate member, an insulating layer including a plurality of wire contact holes exposing a part of the contact region of the first conductive wire and formed over the first conductive wire, a second conductive wire formed over the first conductive wire and connected to the first conductive wire through the plurality of wire contact holes of the insulating layer, a sealant formed over the second conductive wire, a sealing member formed over the sealant, and a fill-up layer disposed above or under the contact region of the first conductive wire. | 2010-05-06 |
20100109513 | LIGHT EMITTING DEVICE - The invention relates to a light emitting device ( | 2010-05-06 |
20100109514 | HETEROCYCLIC BRIDGED BIPHENYLS - The present invention relates to compounds of the formula (I), a process for their preparation and their use in organic light emitting diodes (OLEDs), especially as host for phosphorescent compounds. The hosts may function with phosphorescent materials to provide improved efficiency, stability, manufacturability, or special characteristics of electroluminescent devices. | 2010-05-06 |
20100109515 | OLED WITH METAL COMPLEXES HAVING A HIGH QUANTUM EFFICIENCY - The present invention is directed to the field of organic light emitting diode (OLED) electroluminescent devices comprising a light-emitting layer containing an organic metal coordination compound with tailored ligands of the general structure (1) where (2) is a N-containing heterocycle comprising one or more cycle and where (3) is a unit with a triplet energy of at least 22,220 cm | 2010-05-06 |
20100109516 | ELECTRONIC DEVICE AND METHOD FOR MANUFACTURING THE SAME - In a method for manufacturing an electronic device, a low melting point metal layer is provided to seal an electronic element between a pair of resin substrates each having a barrier layer laminated thereon. The low melting point metal layer bonds the barrier layers of the resin substrates to each other. The method includes the steps of: providing a light absorbing layer between at least one of the barrier layers and the low melting point metal layer; and irradiating a laser beam having a wavelength within a range from 350 nm to 600 nm onto the light absorbing layer through at least one of the resin substrates and the barrier layer laminated thereon, to heat and fuse the low melting point metal layer, thereby bonding the barrier layers to each other. | 2010-05-06 |
20100109517 | PYRENE POLYMER COMPOUND AND LIGHT EMITTING DEVICE USING THE SAME - A polymer compound comprising a constitutional unit of the formula (1), and a repeating unit of any of the formulae (2) to (4): | 2010-05-06 |
20100109518 | Light-Emitting Element, Light-Emitting Device, and Electronic Device - The light-emitting element includes: a light-emitting layer and a layer for controlling the movement of carriers between a first electrode and a second electrode. The layer for controlling the movement of carriers contains a first organic compound and a second organic compound, and is provided between the light-emitting layer and the second electrode. The first organic compound has an electron transporting property, and the second organic compound has an electron trapping property. The weight percent of the first organic compound is higher than that of the second organic compound. The light-emitting layer emits light when a voltage is applied such that the potential of the first electrode is higher than that of the second electrode. The first organic compound having the electron transporting property may be replaced with an organic compound having a hole transporting property, and the second organic compound having the electron trapping property may be replaced with an organic compound having a hole trapping property. | 2010-05-06 |
20100109519 | ORGANIC ELECTROLUMINESCENCE DEVICE - An organic electroluminescence (OEL) device, having a polymeric substrate, a plurality of light enhanced structures, a barrier layer, a first electrode, an organic light emitting layer, a second electrode and a protective layer, is provided. The polymeric substrate has a first surface and a second surface. The light enhanced structures are disposed on the first surface. The barrier layer is disposed on the second surface. The first electrode is disposed on the barrier layer. The organic light emitting layer is disposed on the first electrode. The second electrode is disposed on the organic light emitting layer. The protective layer is disposed on the second electrode. Since the OEL device has light enhanced structures, not only light efficiency can be improved but surface scattering is also reduced. | 2010-05-06 |
20100109520 | INORGANIC ELECTROLUMINESCENT DEVICE AND METHOD OF MANUFACTURING THE SAME - An inorganic electroluminescence (“EL”) device includes a lower electrode; a dielectric layer disposed on the lower electrode; an inorganic emission layer disposed on the dielectric layer; an upper electrode disposed on the inorganic emission layer; a waveguide layer disposed on the upper electrode; and a reflection film partially coating the waveguide layer and including an emission portion through which light is emitted. | 2010-05-06 |
20100109521 | QUANTUM DOT ELECTROLUMINESCENT DEVICE - An EL device is presented which consists of a simple three active layer construction. A layer of a dielectric material, a traditional EL phosphor layer, and a quantum dot layer are present between an electrode and a transparent electrode. The EL device is operated efficiently by an AC source. Quantum dots which emit in the visible spectrum are used. The EL device is fully color tunable by altering the composition and thickness of the layers. | 2010-05-06 |
20100109522 | MERCURY-FREE HIGH INTENSITY GAS-DISCHARGE LAMP - The invention describes a mercury-free high intensity gas-discharge lamp ( | 2010-05-06 |
20100109523 | DIELECTRIC COMPOSITION AND PLASMA DISPLAY PANEL INCLUDING THE SAME - A dielectric composition for plasma display panel and a plasma display panel including the same are disclosed. The dielectric composition includes about 3 to 10 parts by weight of SiO2, about 13 to 35 parts by weight of B2O3, about 25 to 48 parts by weight of ZnO, and about 10 to 20 parts by weight of BaO. | 2010-05-06 |
20100109524 | PLASMA DISPLAY PANEL - A plasma display panel including a front panel including front glass substrate, a display electrode formed on the substrate, a dielectric layer formed to cover the display electrode, and a protective layer formed on the dielectric layer; and a rear panel facing the front panel so that discharge space is formed and including an address electrode formed in a direction intersecting, the display electrode, and a barrier rib for partitioning the discharge space. The protective layer includes a base film on the dielectric layer and aggregated particles of a plurality of aggregated metal oxide crystal particles attached to the base film so that they are distributed over an entire surface. The aggregated particles have distribution of peak intensity values in a spectrum in a wavelength range of not less than 200 nm and not more than 300 nm of a cathode luminescence within 240% of a cumulative average value. | 2010-05-06 |
20100109525 | PLASMA DISPLAY PANEL - A plasma display panel for improving luminous efficiency including first and second substrates facing each other; barrier ribs partitioning a space between the first and second substrates to define discharge cells; address electrodes on the first substrate and extending along a first direction to correspond to the discharge cells; first and second electrodes extending along a second direction crossing the first direction on the second substrate to define a discharge gap at centers of the discharge cells; a dielectric layer covering the first and second electrodes; and a protective layer covering the dielectric layer. The dielectric layer includes a first section in the discharge gap and a portion adjacent to the discharge gap in the first direction and having a smaller dielectric constant, and a second section at either side of the first dielectric constant section in the first direction and having a larger dielectric constant. | 2010-05-06 |
20100109526 | Plasma display panel - A plasma display panel has heights of barrier ribs prevented from abnormally increasing at positions where a phosphor dispensing process starts and ends, improving discharge performance and uniformity of a panel. A front substrate and a rear substrate face each other. Address electrodes and display electrodes extend separately from each other in a first direction and a second direction, respectively, in a space between the front substrate and the rear substrate, the first direction crossing the second direction. Barrier ribs partition a display area including a plurality of discharge cells in the space between the front substrate and the rear substrate. A non-display area is formed along a periphery of the display area. A phosphor layer is formed in each discharge cell. The non-display area includes a buffer area formed of at least a single region outside the display area. | 2010-05-06 |
20100109527 | Plasma display panel - A PDP includes a first substrate and a second substrate facing each other, a plurality of first discharge electrodes on the first substrate, a first dielectric layer covering the first discharge electrodes, a plurality of second discharge electrodes on the second substrate and intersecting the first discharge electrodes, a second dielectric layer covering the second discharge electrodes, and a sealing material between the first substrate and the second substrate, wherein an absolute value of thermal expansion coefficient difference between the second dielectric layer and the sealing material is less than or equal to 13×10 | 2010-05-06 |
20100109528 | FOIL SEALED LAMP - A foil sealed lamp including an airtight container including a discharge portion provided thereinside with a discharge space and seal parts disposed at both ends of the discharge portion; metal foils of thickness T (μm) hermetically attached to the seal portions; a pair of electrodes each having its one end connected to the metal foil and having its other end led out to the discharge space; and on the periphery of areas of connection of the metal foils with the pair of electrodes, multiple recessed portions satisfying 1.0 (μm)≦D≦T (μm) wherein D refers to the depth (μm), in a manner that the recessed portions do not overlap one another. | 2010-05-06 |
20100109529 | ARCTUBE FOR INDUCTION HIGH INTENSITY DISCHARGE LAMP - An oblate spheroidal arctube body geometry provides for a significant reduction in stress cracks and results in lamps that operate at greater than 400 watts for extended periods of time leading up to greater than 20,000 hours. Preferably, the major diameter (OD) ranges between approximately 20 and 40 mm. Wall thickness (T) is preferably on the order of approximately 1.0 to 3.0 mm. An aspect ratio defined as AR (major axial dimension/minor axial dimension) is preferably between 1.1 and 2.0. A radius of curvature (R1) between the spheroidal portion and the leg of the arctube body preferably ranges from—approximately 3 mm to 12 mm or which can be expressed as a curvature 1/R1 ranging from 0.08 to 0.33 mm | 2010-05-06 |
20100109530 | AIRCRAFT CABIN LIGHTING SYSTEM AND KIT THEREFOR - An aircraft cabin lighting kit includes: a driving/dimming module generating output signals for controlling illumination of at least one lighting unit according to command signals from a cabin management system; and at least one wire assembly interfacing the driving/dimming module with a power bus for receiving operational power, and a communication bus for receiving the command signals and for communicating the output signals to the at least one lighting unit. The present aircraft cabin lighting kit is certified by a governmental aviation-regulating body for installation in multiple aircraft. An aircraft cabin lighting system, which includes the kit, is also provided | 2010-05-06 |
20100109531 | All-LED visible light and IR light headlamp - A headlamp for a vehicle (air, land or sea) providing a planar array of infrared (IR) light-emitting diodes (LEDs) and visible light LEDs, and arranged and mounted within a housing so as to provide for cooling of the LEDs without forced convection, by conducting heat from the LEDs to protruding cooling fins. A switch system is also provided, for enabling either the visible light or the infrared light, and for selecting a high-beam or low-beam pattern. The beam pattern is provided in some embodiments so as to meet US Federal Motor Vehicle standards. | 2010-05-06 |
20100109532 | DEVICE AND METHOD FOR PRODUCING AND/OR CONFINING A PLASMA - The invention concerns a device for producing and/or confining a plasma ( | 2010-05-06 |
20100109533 | ELECTRONIC BALLAST WITH ADJUSTABLE FILAMENT PREHEATING BASED ON OUTPUT CURRENT SYMMETRY - An electronic ballast is provided for adjustable filament preheating of a discharge lamp based on output current symmetry. A power converter receives DC power and outputs AC power. A starting circuit generates a high voltage for starting the lamp. A control circuit controls the AC power output from the power converting circuit. A symmetry determining circuit determines a positive-negative symmetrical state of the AC power output to the lamp with respect to ground. After lamp startup, the control circuit enters a filament heating operation in which the output frequency of the power converting circuit is controlled to a first frequency. At one or more predetermined current detection points during the filament heating operation, the control circuit checks the symmetry state. If the output current is symmetrical at the current detection point, the control circuit ends the frequency heating operation and enters steady state operation with an output frequency of the power converter controlled to a second frequency for maintaining lamp lighting. If the output current is asymmetrical at the current detection point, the control circuit increases the output current to the lamp and continues the frequency heating operation. | 2010-05-06 |
20100109534 | ELECTRONIC BALLAST WITH CONTROLLED FILAMENT PREHEATING USING HALF-WAVE LAMP CURRENT DETECTION - An electronic ballast is provided for controlled preheating of filaments in a discharge lamp. A power converter has a plurality of switching elements and converts DC power from a DC power source into AC power for the lamp. A starting circuit generates a high voltage for starting the lamp. A half-wave discharge detecting circuit detects an absolute value for each polarity peak of a lamp current, calculates an asymmetrical current value from the detected peaks with respect to a predetermined current threshold, and detects a half-wave discharge of the lamp wherein an absolute value of the asymmetrical current value is equal to or more than the current threshold for a predetermined determination time. A control circuit regulates on-times for the switching elements in an filament heating operation wherein the power converting circuit provides a high output frequency for heating each filament of the discharge lamp, and further regulates the on-times to reduce half-wave discharge detected during the filament heating operation. | 2010-05-06 |
20100109535 | LIGHT-EMITTING DEVICE - A light-emitting device includes a light-emitting diode (LED) module, a detecting circuit and a control circuit. The light-emitting diode module receives a variable voltage. The detecting circuit detects a light state of the light-emitting diode module and then outputs a control signal. The control circuit is electrically connected to the light-emitting diode module and adjusts the amount and/or the light state of the on-state light-emitting diodes in the light-emitting diode module in accordance with the control signal. | 2010-05-06 |
20100109536 | LED-based secondary general illumination lighting color slaved to primary general illumination lighting - One aspect relates to combining an at least one primary general illumination lighting with an at least one LED-based secondary general illumination lighting. The aspect further comprises sensing an at least one sensed electric characteristics used to produce the at least one primary general illumination lighting. The aspect further comprises controlling an optical characteristic of the at least one LED-based secondary general illumination lighting at least partially responsive to the sensing the at least one sensed electric characteristics used to produce the at least one primary general illumination lighting. | 2010-05-06 |
20100109537 | LED LIGHTING CIRCUIT AND ILLUMINATING APPARATUS USING THE SAME - Light outputs from many LEDs are uniformized and power consumption required for such uniformizing is suppressed, in an LED lighting circuit to be used for illuminating apparatus and the like. Currents flowing from a DD converter to an LED module are detected by a current detection resistor and compared with a reference voltage (Vref) from a reference voltage source by a comparison circuit. Corresponding to the comparison results, a control circuit controls the DD converter, and the currents flowing to the LED module are controlled to be constant currents at the same time. Furthermore, in LED load circuits configuring the LED module, control elements configuring a current mirror circuit are arranged in series, a corresponding control element is permitted to have a diode structure by having a circuit with the highest sum of the LED ON voltages as a reference, the flowing current values of the control elements of the remaining circuits are interlocked, and the LED load circuits are balanced. | 2010-05-06 |
20100109538 | CONTINUOUS CURRENT CONTROL CIRCUIT MODULES OF SERIES STRING BULBS TYPE - The invention relates to a continuous current control circuit module of series string bulbs type, which can maintain the normal current and voltage across each of the bulbs when any of series connected bulbs burn out. The string includes a shunt in every bulb assemblies, which is especially a Zener diode with a tiny volume. The shunt will thus provide a secure electrical connection of the light string whenever any bulb is burn out or broken. | 2010-05-06 |
20100109539 | Power converter and power conversion method with reduced power consumption - A power converter and power conversion method converts an input AC signal to a voltage usable by a load while reducing power consumption, thereby making the converter and method suitable for a wider range of applications. A rectifier receives the AC input signal and outputs a rectified voltage Vs, a controller has a power input connected to Vs and outputs two out-of-phase signals, two transistors are connected in series between Vs and a ground and each of the two transistors has a gate connected to a respective one of the two out-of-phase signals, and a transformer that has a primary coil connected to a node between the two transistors and a secondary coil connected to a load feeds back current from the secondary coil to the power input of the controller to reduce power consumption. | 2010-05-06 |
20100109540 | ORGANIC LIGHT EMITTING DIODE DISPLAY - An organic light emitting diode display includes a first scan switching element controlled in response to a first scan signal from a first scan line and connected between a first data line and a first node, a first storage capacitor connected between the first node and an AC voltage supply line, a first driving switching element controlled in response to a signal applied to the first node and connected between a second node and the AC voltage supply line, a light emitting element connected between a high-level voltage supply line and the second node, a first sensing switching element controlled in response to a first gate signal from a first gate line and connected between the first data line and the second node, a second scan switching element controlled in response to a second scan signal from a second scan line and connected between a second data line and a third node, a second storage capacitor connected between the third node and the AC voltage supply line, and a second driving switching element controlled in response to a signal applied to the third node and connected between the second node and the AC voltage supply line. | 2010-05-06 |
20100109541 | COLOR CONTROL OF LIGHT SOURCES EMPLOYING PHOSPHORS - An illuminating device includes a light source including a lighting device, such as a solid state lighting device, which emits light, a phosphor material which converts at least a portion of the light emitted by the lighting device to light of a different wavelength. A controller adjusts a ratio of on time to off time of a current waveform supplied to the lighting device. This enables the color of light emitted by the light source to be controlled. | 2010-05-06 |
20100109542 | ELECTRONIC BALLAST WITH CONTROLLED LAMP PREHEATING - An electronic ballast provides controlled preheating for a discharge lamp. A power converting circuit receives a DC power input and converts it into an AC power output. A starting circuit coupled to the power converting circuit generates a high voltage for starting the lamp. A control circuit controls the power converting circuit to generate AC power output to the lamp dependent on a mode of operation. A symmetry detecting circuit determines a positive-negative symmetrical state of the output power provided to the discharge lamp with respect to ground. The control circuit has a starting mode wherein the discharge lamp is triggered to start with a high voltage generated by the starting circuit, an electrode heating mode wherein the AC power output of the power converting circuit is controlled to a first frequency for heating each lamp electrode, and a steady-state mode wherein the AC power output of the power converting circuit is controlled to a second frequency for maintaining lighting of the discharge lamp. The control circuit shifts from the electrode heating mode to the steady-state mode when the symmetry detecting circuit determines that the AC power output is in a positive-negative symmetrical state in the electrode heating operation. | 2010-05-06 |
20100109543 | HIGH-PRESSURE DISCHARGE LAMP BALLAST WITH MULTI-MODE LAMP STARTING CIRCUIT - An electronic ballast is provided for powering a high-pressure discharge lamp. A power supply circuit receives an AC input and provides a DC output in response to the AC input. An inverter circuit having a plurality of switching elements converts the DC output into an AC signal for the lamp. An LC resonant circuit is coupled between the inverter circuit and the lamp. A control circuit controls the switching operation of the switching elements, with the switching control associated with various operating modes. In an electrical breakdown mode the switching elements are controlled at a first switching frequency effective to provide a first resonant voltage and produce electrical breakdown of the lamp from an unlit state. In a high frequency preheat mode the switching elements after startup of the lamp are controlled at a second switching frequency lower than the first switching frequency to provide a current for preheating lamp electrodes. In a rectangular wave lighting mode the switching elements after preheating of the lamp electrodes is controlled to supply a rectangular wave AC signal to the lamp and maintain steady state lighting. | 2010-05-06 |
20100109544 | COLD CATHODE TUBE LAMP - A cold cathode tube lamp which can be lighted easily when the ambient temperature is low. The cold cathode tube lamp comprises discharge tubes ( | 2010-05-06 |
20100109545 | Automatic Compensation For Degradation Of Optocoupler Light Emitting Diode - A system and method for compensating for degradation of a light emitting diode includes accumulating time that the light emitting has been lit. An additional amount of drive current to be provided to the light emitting diode is determined based on the accumulated time that the light emitting diode has been lit. The system includes a controller that accumulates the time that the light emitting diode has been lit and determines the amount of addition drive current to be provided to the light emitting diode. | 2010-05-06 |
20100109546 | ELECTRONIC BALLAST WITH LAMP FLICKER SUPPRESSION DURING START-TO-STEADY STATE TRANSITION - An electronic ballast is provided for powering a discharge lamp and suppressing lamp flicker during startup transition. A power converter receives DC input power and converts it into an AC power output. A resonant circuit is coupled with the lamp and also between output terminals of the power converter. A controller controls the power converter with respect to particular modes of operation. The controller in a starting operation sets the output frequency of the power converter to a predetermined start frequency upon lamp startup to make the lamp begin discharging. The controller shifts from the starting operation to steady-state operation by setting the output frequency of the power converter at a predetermined steady-state frequency lower than the start frequency. The predetermined start frequency is set to a frequency identical or close to 1/(an odd whole number) of the resonant frequency of the resonant circuit with the lamp unlit, and also to a frequency identical or close to the resonant frequency of the resonant circuit with the discharge lamp lit. The start frequency is sufficient to make the discharge lamp start discharging, and to raise a temperature of each electrode of the discharge lamp after lamp startup and by an end of the starting operation. | 2010-05-06 |
20100109547 | LCD BACKLIGHT INVERTER - Disclosed is a liquid crystal display (LCD) backlight inverter. The LCD backlight inverter includes a lamp open detection unit outputting a first open detection voltage for a preset time period when it is determined that a predetermined lamp is open, based on a current voltage corresponding to the current of the predetermined lamp of a plurality of lamps, a first open determination unit outputting an open detection signal when the first open detection voltage is input, a second open determination unit outputting a protection signal when it is determined that all of the plurality of lamps are open based on detection voltages of the plurality of lamps, a temporary protection determination unit outputting a frequency change signal when both the open detection signal and the protection signal are input, and an operating frequency control unit changing an operating frequency to a preset protective frequency according to the frequency change. | 2010-05-06 |
20100109548 | DIMMING ELECTRONIC BALLAST WITH PREHEAT CURRENT CONTROL - An electronic ballast is capable of realizing high frequency lighting of a discharge lamp and switching between at least two lighting modes with different light outputs. The ballast includes a preheating circuit having a winding component connected in parallel with a main resonant circuit with a lamp current flowing therein for the discharge lamp. A constant preheating current for the lamp filaments is supplied from a secondary winding of the winding component during lighting of the discharge lamp and a path of a current flowing on a primary winding side of the winding component is switched by a switch according to the lighting mode. | 2010-05-06 |
20100109549 | METHOD AND DEVICE FOR DRIVING A GAS DISCHARGE LAMP - A method is described for driving a lamp (L), specifically but not necessarily a gas discharge lamp. The lamp is driven with a pulse width modulated lamp current. The lamp current frequency is a constant frequency (fref) modulated with a random or at least pseudo | 2010-05-06 |
20100109550 | LED Dimming Techniques Using Spread Spectrum Modulation - Circuits and methods of LED dimming are disclosed. Frequency modulation using controlled modulation depth generates deterministic sidebands of both the fundamental frequency and its harmonics. Various filters including low-pass, band-pass, high-pass and combinations of those are used to selectively filter the deterministic frequency components generated by the frequency modulation to achieve LED dimming. | 2010-05-06 |
20100109551 | Light Source Package - A light source package includes a metal base adapted for engaging a suitable electrical socket; a transparent housing assembled with the base so as to form together with the base an accommodating space; and a light-emitting unit mounted within the accommodating space. The light-emitting unit has an LED die, and the LED die is operatively disposed in the accommodating space such that the light emitted from all of the six surfaces of the LED die is completely collected for illumination. | 2010-05-06 |
20100109552 | Light Dimmer Circuit - A light dimmer circuit for use with light emitting diodes. Light emitting diodes (LEDs) are connected in parallel with capacitors, which are connected in parallel with LED drivers. The light dimmer circuit is capable of achieving a wide range of power levels to the LEDs. | 2010-05-06 |
20100109553 | LED BULB WITH ZENER DIODE, ZENER DIODE ASSEMBLY OR RESISTOR CONNECTED IN SERIES - An LED bulb in one embodiment includes two depending arms; a Zener diode secured to one end of one arm; an LED secured to one end of the other arm; a conductor electrically interconnecting the Zener diode and the LED; and an enclosure formed of epoxy resin with the Zener diode, the LED, the conductor, and one ends of the arms being concealed therein, wherein either a cathode of the LED is connected in series with a cathode of the Zener diode or an anode of the LED is connected in series with an anode of the Zener diode. The LED is adapted to emit red, green, or blue light. | 2010-05-06 |
20100109554 | ILLUMINATION DEVICE HAVING INRUSH CURRENT LIMITING CIRCUIT - An illumination device includes an integrated electronic ballast and a luminaire connecting terminal, that has a terminal housing, wherein there is integrated in the terminal housing an inrush current limiting circuit that is designed such that when the luminaire is switched on it prevents excessively large inrush currents by a voltage drop in the inrush current limiting circuit during the switched on phase. | 2010-05-06 |
20100109555 | AROMATIC AMINE COMPOUND, ORGANIC ELECTROLUMINESCENT ELEMENT INCLUDING THE SAME, AND DISPLAY DEVICE INCLUDING ORGANIC ELECTROLUMINESCENT ELEMENT - An aromatic amine compound is represented by general formula [I]: | 2010-05-06 |
20100109556 | Solar Powered Underwater Multipurpose Illumination Device - An illumination device includes a housing and a lens disposed at the end of the housing. The lens is in watertight engagement with the housing and includes at least one LED disposed in the housing and for transmitting light through the lens. An infrared sensor is operatively connected to the electronic control unit for remotely operating the electronic control unit. The illumination device also includes a mounting disk and bracket for mounting to underwater surfaces, such as a pool, or a magnet for the same. An electronic driver unit regulates power to the LED module, thereby saving battery power. | 2010-05-06 |
20100109557 | Floating Switch Controlling LED Array Segment - A control circuit used in a lamp system. The lamp system has a first and a second light emitting diode (LED) connected together in series. The control circuit includes a current source for connecting to the first LED to provide a regulated drive current to the first and second LEDs in order to illuminate the LEDs. The control circuit includes a switching component for connecting in parallel with the first LED to divert the driver current from the first LED and provide the driver current to the second LED when the switching component is activated. The control circuit includes a controller for selectively activating the switching component in order to selectively extinguish the first LED. | 2010-05-06 |
20100109558 | AC to DC LED illumination devices, systems and methods - Illumination devices ( | 2010-05-06 |
20100109559 | METHOD AND CIRCUIT OF CONTROLLING AN LED CHARGE PUMP DRIVING CIRCUIT - An LED charge pump driving circuit includes a charge pump, a control circuit, a driver, and an LED. The charge pump generates an output voltage according to an input voltage. The driver drives the LED according to the output voltage so as to generate a load voltage. When the load voltage is greater than a first predetermined voltage, the charge pump is turned on. When the load voltage is smaller than a second predetermined voltage over a predetermined duration, the charge pump is turned off. When the load voltage is greater than a third predetermined voltage, the driver is locked. | 2010-05-06 |
20100109560 | Capacitive Full-Wave Circuit for LED Light Strings - A capacitive full-wave circuit for LED light strings makes use of capacitors and diodes together to drive a LED string with full AC waves. Different from the conventional four-diode full-wave rectifying circuit, one embodiment of capacitive full-wave circuit includes two capacitors and two diodes. Because of the large imaginary impedance, the capacitors not only limit and the voltage and current through the LEDs, but also consume almost no electrical power. The electrical current-voltage performance can be further improved by introducing four resistors with a cost of some additional power consumption. A LED light string module with the capacitive full-wave circuit is also presented, with the capacitive full-wave circuit integrated inside of a front power plug and a back power socket. | 2010-05-06 |
20100109561 | POWER SUPPLY APPARATUS - A power supply apparatus includes an open loop power switcher, a power isolation transformer, a backlight driving circuit, and a power circuit. The open loop power switcher converts a direct current (DC) power into an alternating current (AC) input voltage. The power isolation transformer is coupled to the open loop power switcher and includes a primary-side winding, a first winding, and a second winding, wherein the first and second windings are disposed at the secondary-side of the power isolation transformer, and the first winding is employed for generating a first voltage signal according to the AC input voltage. The backlight driving circuit is employed for driving a backlight module according to the first voltage signal. The power circuit is employed for receiving a second voltage signal generated from the second winding according to the AC input voltage, in order to generate an output power signal. | 2010-05-06 |
20100109562 | BACKLIGHT MODULE AND LIGHT-EMITTING DEVICE THEREOF - A light emitting device of the backlight module comprises a carrier, an electrical contact, a light emitting diode (LED) driving circuit, and a plurality of LEDs. The carrier comprises a surface, and the electrical contact is electrically connected to a voltage source for providing a voltage potential substantially equal to that of the voltage source. The LED driving circuit comprises at least one driving component electrically connected to the electrical contact, and the plurality of LEDs electrically connected between the electrical contact and the LED driving circuit. The electrical contact, the LED driving circuit, and the plurality of LEDs are all positioned on the surface of the carrier. | 2010-05-06 |
20100109563 | APPARATUS FOR DRIVING MULTI-LIGHT EMITTING DEVICES - An apparatus for driving multi-light emitting devices that drives a multi-channel light emitting unit having a plurality of light emitting channels connected in parallel with each other, each of which has a plurality of light emitting devices connected in series with each other according to an aspect of the invention may include: a DC/DC converter generating a driving voltage; a current control unit having a plurality of current sources connected between cathodes of the plurality of light emitting channels and a ground; a minimum voltage selection unit detecting a minimum detection voltage among the plurality of detected voltages at the cathodes of the plurality of light emitting channels; a first error detection unit detecting an error voltage determined by the difference between the minimum detection voltage and a predetermined first reference voltage; and a feedback coupling unit supplying the input voltage according to the error voltage and the driving voltage. | 2010-05-06 |
20100109564 | ADJUSTABLE COLOR ILLUMINATION SOURCE - An adjustable adjustable color illumination source comprises: a first color channel including at least first and second sub-channels independently selectively switchable on or off to generate illumination of a first color with at least three different selectable intensity levels not including zero intensity; a second color channel including at least first and second sub-channels independently selectively switchable on or off to generate illumination of a second color with at least three different selectable intensity levels not including zero intensity; a third color channel including at least first and second sub-channels independently selectively switchable on or off to generate illumination of a third color with at least three different selectable intensity levels not including zero intensity; the first, second, and third color channels arranged such that the illumination of the first, second, and third colors combine to generate a source illumination; and a controller communicating with the first, second, and third color channels to selectively switch on or off the sub-channels of the first, second, and third color channels to adjust the source illumination to a selected one of at least sixty four different colors. light source comprises a light source having input channels for generating illumination of different channel colors, and an electrical power supply selectively energizing the input channels in a time division multiplexed fashion to generate a illumination of a selected color. | 2010-05-06 |
20100109565 | APPARATUS AND METHODS FOR REDUCING THE POWER CONSUMPTION OF FLUORESCENT LIGHTS - Systems for reducing the power consumption of fluorescent lights are provided. The systems can be used in new construction as well as retrofitted into existing buildings employing overdriven fluorescent lights without significantly affecting the operation of utility power lines. In preferred embodiments, the systems provide substantially constant light output during start-up and low voltage conditions. | 2010-05-06 |
20100109566 | Control Circuit for Light Emitting Diode and Light Emitting Device Having the Same - Disclosed are a control circuit for a light emitting diode and a light emitting device having the same. The control circuit for the light emitting diode comprises a red LED, a green LED and a blue LED, a driver which outputs a first control signal and a second control signal based on a 2-bit combination and a driving circuit which sequentially turns on/off the LEDs according to a state of the first control signal and the second control signal that are output from the driver. | 2010-05-06 |
20100109567 | TILED LIGHTING DEVICE - The present invention relates to a lighting device ( | 2010-05-06 |
20100109568 | COMMON OPTICAL ELEMENT FOR AN ARRAY OF PHOSPHOR CONVERTED LLIGHT EMITTING DEVICES - A device is provided with an array of a plurality of phosphor converted light emitting devices (LEDs) that produce broad spectrum light. The phosphor converted LEDs may produce light with different correlated color temperature (CCT) and are covered with an optical element that assists in mixing the light from the LEDs to produce a desired correlated color temperature. The optical element may be bonded to the phosphor converted light emitting devices. The optical element may be a dome mounted over the phosphor converted light emitting devices and filled with an encapsulant. | 2010-05-06 |
20100109569 | TRANSFORMER WITH ADJUSTABLE LEAKAGE INDUCTANCE AND DRIVING DEVICE USING THE SAME - A transformer with adjustable leakage inductance includes a first bobbin, a first winding, and a second winding. The first bobbin includes a first region and a second region. The second winding includes a first coil portion and a second coil portion. One of the first winding and the first coil portion of the second winding is wound around the first region of the first bobbin, and the other of the first winding and the first coil portion of the second winding is wound outside of the one wound around the first region of the first bobbin. The second coil portion of the second winding is wound around the second region of the first bobbin. | 2010-05-06 |
20100109570 | ELECTRICAL CIRCUIT FOR DRIVING LEDS IN DISSIMILAR COLOR STRING LENGTHS - An electrical circuit is disclosed. The electrical circuit comprises a plurality of color strings coupled in series, where each color string has at least one lamp, preferably a light emitting diode. The color strings may be of dissimilar length and may contain light emitting diodes of different colors. In one embodiment, a switch coupled in parallel with one of the color strings is configured to shunt power away from the color string to a power supply. In another embodiment, a switch coupled in parallel with one of the color strings is configured to shunt power away from the color string to one or more other color strings. In several embodiments, passive storage elements are utilized to store shunted power. In another embodiment, a current injector is configured to inject or remove current from a node adjacent to a color string. In several embodiments the invention is implemented as a light emitting diode driver integrated circuit or chip. Methods are disclosed for producing a desired light output utilizing color strings that may be of dissimilar length and that may contain light emitting diodes of different colors. | 2010-05-06 |
20100109571 | INSULATION TYPE AC-DC CONVERTER AND LED DC POWER SUPPLY DEVICE USING THE SAME - In an insulation type AC-dc converter in which input current from a commercial power supply is converted to obtain insulated direct current, the overall efficiency is raised and the structure is simplified. A multi-resonance type half-bridge DC-DC converter having an insulation transformer T is used as a first converter, and a boosting chopper circuit for power factor improvement is used as a second converter. Hence through multi-resonance operation, increases in losses can be suppressed even when the switching frequency is raised, and because a half-bridge circuit is used, switching elements and similar with lower voltage ratings can be employed, whereby overall efficiency can be increased. Moreover, a voltage substantially similar to the full-wave rectified waveform of the power supply voltage is obtained from the output capacitor at the boosting chopper circuit input, whereby there is no need for a feed-forward circuit across the insulation transformer, and moreover the electrolytic capacitor which had to be provided on the converter input side is unnecessary. This is advantageous for achieving miniaturization and a thin design. | 2010-05-06 |
20100109572 | HIGH-PRESSURE DISCHARGE LAMP BALLAST WITH RAPID LAMP RESTART CIRCUIT - An electronic ballast is provided for quickly restarting a high-pressure discharge lamp after shutdown. The ballast includes a power supply circuit for supplying power to the lamp from a commercial power source, a start voltage generation circuit for supplying a starting high voltage to the lamp and a control circuit for controlling the power supply circuit and the start voltage generation circuit. A lighting transition module detects a startup or shutdown of the lamp. A lighting time count module measures a lighting time of the lamp when startup is detected. A comparison module compares the lighting time and a first reference time when shutdown is detected. A delay time setting module sets a predetermined delay time of the start voltage generation circuit based on the comparison result. Operation of the ballast is halted from a startup trigger until lapse of the delay time, and then the high starting voltage is supplied to the lamp. | 2010-05-06 |
20100109573 | DISCHARGE LAMP LIGHTING CIRCUIT - A discharge lamp lighting circuit facilitates carrying out re-ignition and addresses a problem than can arise due to an influence of a capacitor in an auxiliary lighting circuit. A driving voltage generating portion supplies an AC driving voltage to a discharge lamp to be a driving target. An auxiliary lighting circuit is provided on a terminal side of the discharge lamp. An auxiliary lighting capacitor, an auxiliary lighting resistor and a switch are provided in series between the terminal of the discharge lamp and a fixed voltage terminal. A control circuit controls a conducting state of the switch. The switch is brought into an ON state before the discharge lamp is turned ON, and is brought into an OFF state after the discharge lamp is turned ON. | 2010-05-06 |
20100109574 | ARRANGEMENT INCLUDING AN ELECTRONIC BALLAST AND DIMMING CONTROL APPARATUS CONNECTED THERETO, AND METHOD FOR OPERATING A LAMP - An arrangement is provided, including an electronic ballast having two terminals to which the electronic ballast applies voltage during operation, wherein the electronic ballast is configured to distinguish between different loads connected to the terminals and thus to obtain an analysis result, wherein it is configured to drive a lamp, which is connected to it, as a function of the analysis result; and a control apparatus, which is connected to the two terminals and draws energy for its operation via a voltage present at the two terminals, and which has a clock and can change the load, which is present between the two terminals, via an electronic controller as a function of information or signals provided by the clock. | 2010-05-06 |
20100109575 | SINGLE CHIP LED AS COMPACT COLOR VARIABLE LIGHT SOURCE - The present invention relates to a color variable light-emitting device comprising an array of a plurality of LEDs formed on one highly resistive substrate, which array comprises a first, a second and a third set of at least one LED arranged to provide light of a first, a second and a third color, respectively. At least one of the sets is independently addressable. Further, each light-emitting diode in the array has a separate connection to a circuitry, and at least one of the sets comprises at least two LEDs, interconnected in series via the circuitry. Thus, all connections between separate LEDs, for example in the same set, can be done via the circuitry. This also allows for a very dense packing of the LEDs in the array, as no interconnects between different LEDs of the array need to be arranged in the array. | 2010-05-06 |
20100109576 | GENERAL ILLUMINATION SYSTEM AND AN ILLUMINAIRE - A lighting system is presented. The lighting system comprises a light guide ( | 2010-05-06 |
20100109577 | CASCADING ADDRESSABLE MASTERING PROTOCOL-BASED LIGHTING SYSTEM - A method of controlling one or more light fixtures and system thereof are described. Each light fixture is communicably coupled with a lighting control system. The method comprises determining a value of a non-zero portion of a control signal, comparing the determined value with a portion of a component identifier value, and controlling a component corresponding to the component identifier value if the determined value and the portion of the component identifier value are the same. | 2010-05-06 |
20100109578 | MOTOR CONTROL DEVICE - A motor control device for controlling rotation of a brushless DC motor of a ceiling fan includes a receiver unit that receives an input signal and outputs a command signal, a magnetic sensor unit for detecting a magnetic pole variation of the brushless DC motor so as to generate a position signal, a processing unit that is electrically connected to the receiver unit and the magnetic sensor unit and that generates a control signal, a motor drive unit that is electrically connected to the processing unit and the brushless DC motor and that generates a drive signal for driving the brushless DC motor, an AC to DC converter unit that rectifies and filters a grid power to generate a first DC power for the motor drive unit, and a DC to DC converter unit that is electrically connected to the aforementioned units and that generates a second DC power. | 2010-05-06 |
20100109579 | RESONATOR HAVING A STATOR COUPLED TO THREE STATOR VOLTAGES - A resonator includes a translator, a stator, and a control circuit. The control circuit is configured to provide first and second translator voltages and first through third stator voltages, wherein the translator is configured to move with respect to the stator at a resonant frequency of the resonator in response to the control circuit. | 2010-05-06 |
20100109580 | SYSTEM FOR ADAPTING THE RESONANT OPERATION OF A PERSONAL CARE APPLIANCE DURING THE LIFETIME THEREOF - The adapting system for a resonant drive appliance includes a circuit for measuring the back EMF induced in the stator coil of the motor following turn-off of the appliance. The frequency of the back EMF signal is determined from the zero crossings of the EMF signal. The determined frequency is then compared with a running average of previous frequency determinations, and the drive frequency of the appliance is adjusted if the difference between the compared frequencies is greater than a threshold value, e.g. 1 Hz. | 2010-05-06 |
20100109581 | SYSTEM AND METHOD FOR ENERGY CAPTURE AND DISTRIBUTION - Systems and methods are provided for capturing and using power generated by the application of an external force or by an inertial force on a vehicle control device that back-drive or forward-drive an actuator coupled to the control device. An actuator is coupled to a control device configured to apply a force related to operation of a vehicle. A bus is configured to conduct power to the actuator. An actuator control system is configured to receive power from a power source via an electrical bus and direct the power to the actuator. The actuator control system is also configured to monitor an actuator power level to determine when the actuator power level does not meet an anticipated power level. When the actuator power level exceeds the anticipated power level, the excess power generated is directed to an energy storage device. When the actuator power level is less than the anticipated power level, supplemental power is distributed from the energy storage device to the bus. | 2010-05-06 |
20100109582 | METHOD FOR CONTROLLING A LOAD WITH A PREDOMINANTLY INDUCTIVE CHARACTER AND A DEVICE APPLYING SUCH A METHOD - Method for controlling a load with a predominantly inductive character, whereby in order to feed a phase of the above-mentioned load ( | 2010-05-06 |
20100109583 | INVERTER CONTROL DEVICE AND AC MOTOR CONTROL DEVICE USING THIS INVERTER CONTROL DEVICE - There is provided a current tracking PWM control circuit that directly generates PWM signals such that inverter output currents id, iq track PWM current references id**, iq**, using the results of comparison of the inverter output currents id, iq and PWM current references id**, iq**, in which, if current references id*, iq* exist, the result of adding the original current reference iq* and a correction signal iqC*, obtained by amplifying the deviation (iq*-iq) of the current reference iq* and iq, is used as the PWM current reference iq** on the q axis side for performing current control, but, in respect of the d axis side, the original current reference id* is used directly as the PWM current reference id** for performing current control. | 2010-05-06 |
20100109584 | POSITION-SENSORLESS CONTROL SYSTEM AND METHOD OF OPERATION FOR A SYNCHRONOUS MOTOR - This invention provides an advanced position and velocity estimation scheme used in a position-sensorless control system for synchronous operation of an electric motor. The system includes an electric motor having a stator and a rotor; an inverter for powering the electric motor; and a controller for controlling the inverter. The controller utilizes a control system comprising a rotor angle and angular velocity estimation block; an estimated angle error detector block; a field-weakening block; and a torque-to-current converter block, all of which operate to generate control commands for operation of the motor. | 2010-05-06 |
20100109585 | AC motor driving circuit and electric car driving circuit - In an AC motor driving circuit, a current-type rectifier circuit having a filter circuit and first bidirectional switches bridge-connected to the filter circuit is provided in an output of an AC power supply. An AC motor is connected to an output of the rectifier circuit through a voltage-type inverter. One terminal of each of second bidirectional switches is connected to corresponding one of output terminals of the current-type rectifier circuit. The other terminals of the second bidirectional switches are collectively connected to one terminal of a series circuit having a DC power supply and a reactor. The other terminal of the series circuit is connected to one output terminal of the current-type rectifier circuit. With this configuration, a large capacitor for a DC link can be dispensed with, so that a reduction in circuit size and weight can be attained. | 2010-05-06 |
20100109586 | Controller for Rotating Electrical Machines - A controller for rotating electrical machines comprises a processing unit, to which a plurality of parameters are input, for generating a switching instruction to control a switching operation of a switching semiconductor device and outputting a signal corresponding to the switching instruction to a power converter. The processing unit includes at least a function to input thereto signals having been output from each of sensors such as a current sensor to detect current passed between the power converter and a winding of an armature, a temperature sensor to detect temperature of the winding of the armature, and a magnetic pole position sensor to detect magnetic pole position of a magnetic field system, and, based upon information on current, temperature, and rotation speed of the rotating electrical machines, having been obtained from those sensor signals, detects a magnetic flux that interlinks with the winding of the armature from a permanent magnet. | 2010-05-06 |
20100109587 | AC motor driving circuit and electric car driving circuit - In an AC motor driving circuit from an AC power supply and a DC power supply, a matrix converter and a power conversion circuit are provided. The matrix converter is connected between an output of the AC power supply and an input of the AC motor. In the power conversion circuit, switches back-to-back connected to diodes, and bidirectional switches are series-connected, respectively. Connection junctions between the switches and the bidirectional switches are connected to the input phases of the AC motor, respectively. The other terminal of each switch is connected to one terminal of the DC power supply while the other terminal of each bidirectional switch is connected to the other terminal of the DC power supply. In this manner, the number of switches through which electric power passes at the time of operation is reduced so that loss can be reduced. Accordingly, power conversion efficiency can be improved. | 2010-05-06 |
20100109588 | Motor drive circuit and electric power steering apparatus - A motor drive circuit includes a transistor that is connected in parallel to a first voltage divider resistance that forms a voltage divider circuit between the source and the gate of a second interrupting MOSFET. If a reverse connection of the battery occurs, a compensation drive circuit turns on the transistor using an output from the battery so that the source and the gate of the second interrupting MOSFET are short-circuited. Thus, formation of a closed circuit that includes the battery and the inverter circuit is prevented. As a result, it is possible to prevent both terminals of the battery from being short-circuited. | 2010-05-06 |
20100109589 | BRUSHLESS MOTOR, BRUSHLESS MOTOR CONTROL SYSTEM, AND BRUSHLESS MOTOR CONTROL METHOD - A brushless motor control system according to the present invention detects a rotor stop position when activating the brushless motor including a stator having coils of three phases U, V, and W, and controls a phase voltage for energizing the coils of the respective phases U, V, and W, and the brushless motor includes the stator having coils of phases U, V, and W of N (N≧2) poles, in which any one phase coil among the coils of the phases U, V, and W is removed in one of the N poles, and the brushless motor control system includes: a current rise detecting circuit that, when the brushless motor is in a stop state, sequentially selects coils of two phases from the coils of the respective phases U, V, and W, applies a predetermined direct current voltage between the selected coils of the two phases, and detects a value of an electric current flowing to the selected coils of the two phases; and a rotor stop position detecting unit that determines a rotor stop position of the brushless motor based on information of the value of the electric current flowing to the respective phase coils which is detected by the current rise detecting circuit. | 2010-05-06 |
20100109590 | DRIVING DEVICE AND PROTECTION METHOD THEREOF - A driving device includes a motor, a first rotating portion, a second rotating portion, a piezoelectric assembly, and a controlling unit. The motor includes a rotating shaft. The first rotating portion is fixed to the rotating shaft. The second rotating portion is engaged with the first rotating portion. The piezoelectric assembly is sandwiched between the first rotating portion and the second rotating portion. The controlling unit is electrically connected to the motor and the piezoelectric assembly. The controlling unit is configured for storing a predetermined voltage, and determining whether an electric voltage output by the piezoelectric assembly is greater than or equal to the predetermined voltage and inactivating the motor if the electric voltage output by the piezoelectric assembly is greater than or equal to the predetermined voltage. A protection method for the driving device is also provided. | 2010-05-06 |
20100109591 | Heat dissipation device and fan module thereof - A heat dissipation device has a main controller and a fan module having a motor coil, a connection interface, a PWM driving circuit and a fan monitor chip. The connection interface has a control pin, an error report pin, a power supply pin and a ground pin. The control pin receiving a control signal. The PWM driving circuit adjusts current magnitude and current direction of the motor coil to drive the fan module. The fan monitor chip is connected to the connection interface and the PWM driving circuit, receives the control signal, generates and sends PWM signals to the PWM driving circuit according to the control signal and sends an acknowledgement signal via the control pin after receiving the control signal. The main controller can check if the control signal is correctly received based on the acknowledge signal. | 2010-05-06 |
20100109592 | Determining Average Current Drawn by a Motor - A method of determining the average current drawn by an electric motor, the motor comprising a plurality of phases, the method comprising: driving each phase of the motor with cyclic pulse width modulated drive signals having a first state and a second state, and a duty ratio indicative of the ratio of time spent in the first to second states within a cycle, determining the current flowing through each phase at an instant in the cycle; and determining the average current drawn by the motor over at least one cycle by combining the currents flowing through each phase with the duty ratios for each phase. The method may be embodied in a combination of a motor and a drive circuit for the motor, such as can be used in an Electric Power Assisted Steering system. | 2010-05-06 |
20100109593 | MULTI-DEGREE-OF-FREEDOM STAGE CONTROL SYSTEM - There are included a plurality of actuators, an instruction generator for generating instructions of plural degrees of freedom, a position arithmetic unit for calculating positions of plural degrees of freedom from signals of a plurality of sensors, a control arithmetic unit for calculating operation amounts of plural degrees of freedom from the instructions of plural degrees of freedom and the positions of plural degrees of freedom, a thrust force conversion arithmetic unit for calculating thrust force instructions of the plurality of actuators from the operation amounts of the plural degrees of freedom, a current instruction unit for calculating current instructions which should be flowed to the plurality of actuators, and a sensor configuration input device for selecting a desired sensor configuration from among a plurality of sensor configurations. The positions of plural degrees of freedom are calculated by using a position arithmetic expression corresponding to a selected sensor configuration. | 2010-05-06 |
20100109594 | POSITION CONTROL APPARATUS FOR NUMERICALLY CONTROLLED MACHINE - In a position control apparatus that drives a feed-axis with a servomotor of a machine tool, the machine tool maybe quickly accelerated or decelerated in a state where a machine structural member that supports and fixes a structural member including a driving system has a lower rigidity, or in a state where an element having a lower rigidity is present beyond a load position where the detection by a linear scale is performed. In such cases, a generated deflection may induce a displacement in a mechanical system. A relative locus error may be generated between a workpiece to be processed and a front end portion of the tool. Further, a mechanism rigidity generally changes according to a machine posture. The generated deflection amount changes in magnitude. The present embodiment estimates and compensates a displacement amount of the front end portion of the tool that may be caused by the deflection of the mechanical system. Moreover, in calculating an estimation amount, the present embodiment can change a parameter corresponding to the mechanism rigidity based on the machine posture. Thus, the front end of the tool can move accurately along a desired locus relative to the workpiece to be processed. | 2010-05-06 |
20100109595 | INTEGRATED ACTUATOR SENSOR STRUCTURE - An integrated sensory actuator ( | 2010-05-06 |
20100109596 | POWER SUPPLY APPLIANCE OF A TRANSPORT SYSTEM - The invention relates to a power supply appliance ( | 2010-05-06 |