33rd week of 2013 patent applcation highlights part 21 |
Patent application number | Title | Published |
20130207464 | Method for Monitoring a Charging Process of a Battery - A method is described for monitoring a charging process of a battery, in which cell voltages of a plurality of battery cells are measured at regular time intervals, and loading of the battery by a process of switching on an additional electrical load is prevented if the measured cell voltage of one battery cell exceeds a predetermined cell voltage threshold value. A motor vehicle is also described, which is configured to carry out the method according to the disclosure during a battery charging process. In addition, a battery system is described, in which a controller is configured to determine an estimated value as a function of measured battery parameters during a charging process of the battery. The estimated value corresponds to the maximum temperature in the battery if the charging process is continued without interruption. | 2013-08-15 |
20130207465 | APPARATUS AND METHOD FOR DIRECTLY POWER NON-MOBILE COMPUTERS BY SOLAR PV ARRAY WITHOUT DC-AC AND AC-DC CONVERSIONS - An apparatus and method for non-mobile computer's solar power input interface and corresponding multiple DC outputs from solar PV panels is disclosed. In one embodiment, the invention requires no AC-DC or DC-AC conversions between solar PV panels natural DC power outputs and the power consuming computers. In another embodiment, non-mobile digital devices and equipments such as a network router or a digital TV which need low voltage DC power, can also directly use solar PV panel DC power outputs described in this invention. | 2013-08-15 |
20130207466 | HOME ENERGY MANAGEMENT APPARATUS AND METHOD FOR INTERWORKING WITH NEW RENEWABLE ENERGY - A home energy management apparatus and method for interworking with a new renewable energy are provided. | 2013-08-15 |
20130207467 | POWER MANAGEMENT SYSTEM - An apparatus is disclosed, which includes a system that includes loads, linear regulators, switches and a controller. The linear regulators supply power to the loads, and the controller is adapted to use the switches to selectively couple power sources to the linear regulators to regulate a collective power dissipation of linear regulators. | 2013-08-15 |
20130207468 | DUAL SIDE CONTROL FOR INDUCTIVE POWER TRANSFER - An apparatus for dual side control includes a measurement module that measures a voltage and a current of an IPT system. The voltage includes an output voltage and/or an input voltage and the current includes an output current and/or an input current. The output voltage and the output current are measured at an output of the IPT system and the input voltage and the input current measured at an input of the IPT system. The apparatus includes a max efficiency module that determines a maximum efficiency for the IPT system. The max efficiency module uses parameters of the IPT system to iterate to a maximum efficiency. The apparatus includes an adjustment module that adjusts one or more parameters in the IPT system consistent with the maximum efficiency calculated by the max efficiency module. | 2013-08-15 |
20130207469 | PAIRING OF COMPONENTS IN A DIRECT CURRENT DISTRIBUTED POWER GENERATION SYSTEM - A method of signaling between a photovoltaic module and an inverter module. The inverter module is connected to the photovoltaic module. In an initial mode of operation an initial code is modulated thereby producing an initial signal. The initial signal is transmitted from the inverter module to the photovoltaic module. The initial signal is received by the photovoltaic module. The operating mode is then changed to a normal mode of power conversion, and during the normal mode of operation a control signal is transmitted from the inverter to the photovoltaic module. A control code is demodulated and received from the control signal. The control code is compared with the initial code producing a comparison. The control command of the control signal is validated as a valid control command from the inverter module with the control command only acted upon when the comparison is a positive comparison. | 2013-08-15 |
20130207470 | Bidirectional DC-to-DC Converter - A bidirectional DC-to-DC converter is configured to convert electrical energy from a first and second DC source. The bidirectional converter includes an output capacitor providing an output voltage and a first and second inductor. The first inductor is arranged between a positive connection of the second DC source and a first contact of a first switch. The second inductor is arranged between a negative connection of the first DC source and a second contact of the first switch. A buffer capacitor is arranged between a negative output of the first DC source and a positive output of the second DC source. A second and third switch are arranged in series with the first switch. The second switch is arranged between the first contact of the first switch and the positive DC output. The third switch is arranged between the second contact of the first switch and the negative DC output. | 2013-08-15 |
20130207471 | IMPUTED DC LINK (IDCL) CELL BASED POWER CONVERTERS AND CONTROL THEREOF - Power flow controllers based on Imputed DC Link (IDCL) cells are provided. The IDCL cell is a self-contained power electronic building block (PEBB). The IDCL cell may be stacked in series and parallel to achieve power flow control at higher voltage and current levels. Each IDCL cell may comprise a gate drive, a voltage sharing module, and a thermal management component in order to facilitate easy integration of the cell into a variety of applications. By providing direct AC conversion, the IDCL cell based AC/AC converters reduce device count, eliminate the use of electrolytic capacitors that have life and reliability issues, and improve system efficiency compared with similarly rated back-to-back inverter system. | 2013-08-15 |
20130207472 | Extension USB Socket - A detachable extension USB socket for a portable device comprising: a cover housing for receiving a circuits; conducting pins coupled to said circuits and extending outside of said cover housing and said conducting pins being attachable from a wall socket; at least one USB port coupled to said conducting pins to allow an external device is charged from said wall socket through said least one USB port when a charging port of said external device is not match with said wall socket. | 2013-08-15 |
20130207473 | Method, system and apparatus for redirecting use of any inverter or uninterruptable power supply with improved solar power management - Method, apparatus and system for converting or redirecting use of any inverter or uninterruptable power supply (UPS) with the help of the proposed Solar Management Unit (SMU) into a standalone or off-grid solar system of equivalent capacity solar power. The SMU simplifies the system design to utilize existing investment in an inverter and other equipment and reduces solar system installation time. | 2013-08-15 |
20130207474 | MATRIX CONNECTION DEVICE FOR PHOTOVOLTAIC PANELS AND/OR WIND TURBINES - A matrix connection device disposed between n unidirectional energy sources (PV | 2013-08-15 |
20130207475 | ENERGY STORAGE SYSTEM AND METHOD FOR COMMUNICATION BASE STATION - An energy storage system and method for a communication base station and is related to the communications field, to prolong the life cycle of the energy storage system, reduce the operation cost of the communication base station, and increase the rate of return on investment. The energy storage system includes: a first energy storage unit and a switching unit. One switching end of the switching unit has two switching points, which are connected to the first energy storage unit and the second energy storage unit, respectively; and the other switching end of the switching unit is connected to a power supply system of the communication base station and a load of the base station; a monitoring unit, where an output end of the monitoring unit is connected to the control end of the switching unit and configured to input a control signal. | 2013-08-15 |
20130207476 | APPARATUS AND METHOD FOR VARIABLY CONTROLLING DISCONNECTION OF INTERCONNECTION LINES IN BATTERY SYSTEM - Disclosed are an apparatus and method for variably controlling the disconnection or connection of switch connections between battery units in a large battery system based on the degree of a sensed dangerous external situation to convert the battery system into a small capacity and low voltage state. The apparatus includes: switches provided to interconnection lines between battery assembly units to electrically connect or disconnect the interconnection lines; a switch control module adapted to apply on/off signals to the switches; and a disconnection control module adapted to control the switch control module based on a sensed dangerous level to vary the position and number of the target switches to be opened or closed and the disconnection intervals. According to the apparatus and method, dangerous external situations of a large battery system can be sensed and the disconnection of physical connections between the battery units can be variably controlled. | 2013-08-15 |
20130207477 | METHOD, SYSTEM AND COMPUTER-READABLE RECORDING MEDIUM FOR TRANSFERRING WIRELESS POWER BY USING ANTENNAS WITH HIGH ORDERS OF SPHERICAL MODES - The present invention relates to a system for transferring wireless power or signal. The system includes a first antenna; and a second antenna which is located from the first antenna at an arbitrary distance and arranged in an arbitrary direction in comparison with the first antenna, wherein respective spherical modes of the first antenna and the second antenna are allowed to have orders which are same as or larger than a predetermined value to thereby transfer wireless power between the first antenna and the second antenna. | 2013-08-15 |
20130207478 | FURNITURE WITH WIRELESS POWER - Furniture components, such as office furniture components, are configured to include electronic components that transfer electrical power to peripheral electronic devices via wireless technologies, including conductive and inductive technologies. The articles of furniture may include grommet devices received within work surfaces, the grommet devices incorporating or housing the electronics of wireless power systems. The articles of furniture may also include the electronics of wireless power systems physically embedded or integrated within work surfaces in a manner in which the continuous surfaces of the work surfaces are maintained, and the work surfaces may optionally further include lighting or other indication features to indicate the locations of the electronics to a user. | 2013-08-15 |
20130207479 | SELF-REASONANT APPARATUS FOR WIRELESS POWER TRANSMISSION SYSTEM - Provided is a self-resonant apparatus in relation to electric and radio technologies, and more particularly, to a wireless power transmission system, the self-resonant apparatus including ring resonators. Here, the ring resonators may be represented by a combination having metamaterial features, the combination may include split-ring resonators (SRRs) connected in parallel to capacitors, a front surface and a rear surface of each of the SRRs may be connected to be twisted in an alternating pattern, and each SRR may be executed as a metal strip mounted on a dielectric layer and connected to a neighboring SRR by a series capacitor. | 2013-08-15 |
20130207480 | WIRELESS POWER TRANSMITTING DEVICE - There is provided a wireless power transmitting device which can detect relative positions of a power transmitting coil and a power receiving coil with a simple configuration, and reduce cost of components. The wireless power transmitting device has: a power transmitting coil which supplies power to a power receiving coil by way of electromagnetic induction; an excitation coil which excites the power receiving coil; a plurality of detecting coils which are arranged around a center of the power transmitting coil; and notifying units, and each of the detecting coils has a shape which widens apart from the center of the power transmitting coil, and the notifying units notify relative positions of the power transmitting coil and the power receiving coil by detecting an echo signal produced in the power receiving coil through the plurality of detecting coils. | 2013-08-15 |
20130207481 | Method and Apparatus for Controlling and Powering an Electronic Accessory from a Mobile Digital Device - Various energy harvesting and control techniques are used to power and control electronic accessories from the audio output channels and microphone input channel of mobile digital devices while preserving audio input and output functionality. One technique uses one of the stereophonic audio channels to generate power, and the other in conjunction with the microphone jack to enable bi-directional communications while preserving audio input and output. Another technique allows a low powered electronic accessory with bi-directional communications to be supported while simultaneously supporting audio input & stereo output. These techniques facilitate the ability to play music, narration and instruction and to receive oral responses and instruction with no perceived loss or gaps, even while using the audio jack of a mobile digital device to harvest energy and bi-directional communication. | 2013-08-15 |
20130207482 | INDUCTIVE POWER TRANSFER SYSTEM - An inductive power transfer (IPT system) includes an AC-AC full-bridge converter (T | 2013-08-15 |
20130207483 | ARRANGEMENT AND METHOD FOR THE COMPENSATION OF A MAGNETIC UNIDIRECTIONAL FLUX IN A TRANSFORMER CORE - An arrangement for reducing a DC field component in the core of a transformer includes a compensation winding magnetically coupled to the core of the transformer, and a DC generator arranged in series with the compensation winding and with a reactance dipole. The reactance dipole is formed from a parallel circuit of an inductance and a capacitor to feed into the compensation winding a compensating current opposite in sense to the DC field component in the core. The inductance is formed from magnetically coupled first and second windings having N | 2013-08-15 |
20130207484 | POWER SUPPLY CONTROL APPARATUS AND METHOD FOR CONTROLLING THE SAME - A power supply control apparatus comprises a receiving unit configured to receive data sent from an external device via a network, a control unit configured to process the data received by the receiving unit, a switching unit configured to switch between supply and disconnection of power from a first power supply unit to the receiving unit and to the control unit, and a mechanical switch configured to switch between supply and disconnection of power from a second power supply unit to the control unit. If the apparatus receives data from the external device in a power state in which power is supplied from the first power supply unit to the receiving unit and power to the control unit is stopped, the apparatus controls to supply power from the first power supply unit to the control unit without turning on the mechanical switch. | 2013-08-15 |
20130207485 | ACCELERATION SWITCH AND ELECTRONIC DEVICE - Provided is an acceleration switch capable of detecting only acceleration intended to be detected under a state where a load other than the acceleration intended to be detected is applied. The shape of a space between a mass body and a counter electrode or the shape of the counter electrode is changed, or alternatively the position of the space of the mass body or the position of the counter electrode is changed, so as to detect a predetermined acceleration. | 2013-08-15 |
20130207486 | POWER-SAVING VOLTAGE CONVERTER OPERATION - Whether a connector element electrically connected to a direct-current output of a converter that converts alternating current into direct current is connected to an external device may be detected. The converter may be disabled in response to the electrical connector component not being connected to the external device. In response to the electrical connector component being connected to the external device, the converter may be enabled. | 2013-08-15 |
20130207487 | Electromagnetic motor - An electromagnetic motor ( | 2013-08-15 |
20130207488 | ROTATING ELECTRICAL MACHINE, IN PARTICULAR FOR A MOTOR VEHICLE STARTER - A rotating electric machine comprising a rotor ( | 2013-08-15 |
20130207489 | BRUSHLESS MOTOR - In addition to a bearing holder being provided with an annular groove that opens down in the axial direction, an end cap is provided with an annular projection that extends up in the axial direction, and by way of press-fitting the projection into the groove, the fitted portion of the bearing holder and the end cap is forms an axially convex labyrinthine shape extending along the entire perimeter. | 2013-08-15 |
20130207490 | ELECTRICAL MACHINE - An integrated starter generator device comprising a housing, a stator and a rotor contained within the housing, the device further comprising control electronics operable to configure the device as either a starter or generator and contained entirely within the housing. The device may include a high current terminal having brass and rubber bonded together. The rubber forms both a sealing and an insulating function. | 2013-08-15 |
20130207491 | STATOR ASSEMBLY FOR A BRUSHLESS MOTOR IN A POWER TOOL - A power tool includes a brushless DC motor having a stator and a rotor pivotably arranged inside the stator, the stator including a first winding, a second winding, and a third winding. Each winding is arranged at at least two opposite poles connected together. The stator windings may be connected in a delta configuration by electrically coupling adjacent terminals of the first and second windings, second and third windings, and third and first windings at three connection points. A baffle may be provided in parallel and adjacent to the stator, the baffle including at least one conductive routing or stamping to facilitate electrically coupling the first, second, and third windings in at least one of a delta or a wye configuration. | 2013-08-15 |
20130207492 | ELECTRIC MACHINE MODULE COOLING SYSTEM AND METHOD - Embodiments of the invention provide an electric machine module including a housing. The housing can include a machine cavity. In some embodiments, an electric machine can be at least partially positioned within the machine cavity and can include a stator assembly. The stator assembly includes a stator core with slots. In some embodiments, conductors can be positioned in the slots. The conductors include a turn portion extending between leg portions. The leg portions include an angled portion and a connection portion. The conductors are disposed within the plurality of slots so that the angled and connection portions extend from the stator core at a first axial side. At least one insulation member can be disposed over at least some of the leg portions so that the connection portions are at least partially uncovered. | 2013-08-15 |
20130207493 | ROTOR COOLING STRUCTURES - A rotor defines an axial direction and a radial direction relative to an axis of rotation and includes an annular hub and a core disposed radially outward of the annular hub. The core defines a first axial side and a second axial side. First radial feed holes are formed in the annular hub, and are located between the first and second axial sides. Axial channels are formed between the core and the annular hub, and are in fluid communication with the first radial feed holes and span substantially between the first and second axial sides. The rotor also includes a first member and a second member, adjacent to the first and second axial sides, respectively. First and second apertures are formed in the first and second members, respectively. Each of the first and second apertures is in fluid communication with one of the axial channels. | 2013-08-15 |
20130207494 | HIGH ALTITUDE, HIGH VOLTAGE REAR TERMINAL BLOCK ASSEMBLY - A disclosed terminal block assembly for a generator includes a terminal block with a base with first and second transverse terminal surfaces adjoining one another. One of the terminal surfaces includes an increased width greater than a length of a cable terminal lug for providing a lightning strike and creepage barrier. The terminal surfaces include spaced apart protrusions extending from the first and second surfaces to provide spaced apart terminal areas overlapping the first and second surfaces. First and second terminal studs are disposed within each corresponding first and second terminal areas and are electrically connected by a bus bar. | 2013-08-15 |
20130207495 | Electric Machine - An electric machine, for example, a motor, is provided. The machine or motor includes a stator, a rotor, at least one main bearing for supporting the rotor relative to the stator in a main range of speeds and at least one secondary bearing suitable for supporting the rotor relative to the stator when the first main bearing is faulty. Each secondary bearing is a passive electrodynamic bearing and includes at least one permanent magnet and a moveable electric conductor element. | 2013-08-15 |
20130207496 | SYSTEM AND METHOD FOR PERFORMING MAGNETIC LEVITATION IN AN ENERGY STORAGE FLYWHEEL - A system for performing magnetic levitation of an energy storage flywheel, including an upper levitator pole which includes a permanent magnet and an electromagnet, a lower levitator pole fixed to the energy storage flywheel and being formed of a material capable of being attracted to or repelled from the upper levitator pole when a magnetic flux is applied to the magnetic flux path of the permanent magnet of the upper levitator pole, an electromagnetic driver which applies an electric current through the electromagnet of the upper levitator pole, and a controller which controls the electromagnetic driver so as to control the electric current applied through the electromagnet, causing the lower levitator pole to be controllably attracted to or repelled from the upper levitator pole. | 2013-08-15 |
20130207497 | ENERGY HARVESTING DEVICE - An energy harvester is provided. The energy harvester includes a permanent magnet and a coil. At least one of the permanent magnet and coil rotate completely about an axis such that relative movement between the permanent magnet and the coil is realized to generate an electrical current for use in powering a device. | 2013-08-15 |
20130207498 | SYNCHRONOUS MOTOR - A double-stator synchronous motor has a rotor, an inner stator and an outer stator. The rotor has segment-magnetic poles arranged in a ring shape. Magnetic poles formed in the inner stator and the outer stator face to each other in a same circumferential position. Each stator has q (q≧2) slots per pole and phase to disperse magnetomodive force. A radially minimum width Wr of each segment magnetic pole is within a range of 1.3 | 2013-08-15 |
20130207499 | ROTOR ASSEMBLY FOR MOTOR AND SPINDLE MOTOR INCLUDING THE SAME - There are provided a rotor assembly for a motor and a spindle motor including the same. The rotor assembly includes: a rotor case including a rotor hub fixed to a shaft, a rotor extension part extended from the rotor hub in an outer radial direction, and a magnet coupling part extended from the rotor extension part in a downward axial direction; and a magnet provided on an inner surface of the magnet coupling part, wherein a thickness of the magnet in a radial direction may correspond to 8.5 to 20% of a distance from a center of rotation of the rotor case to an edge of the rotor case in the outer radial direction. | 2013-08-15 |
20130207500 | THREE-PHASE ALTERNATING CURRENT PERMANENT MAGNET MOTOR - A three-phase PMAC motor comprises a rotor and a stator. The rotor includes a rotor iron core, a plurality of rotor teeth, a plurality of rotor slots each formed between two adjacent rotor teeth, and a plurality of permanent magnets disposed in respective rotor slots and attached on the rotor iron core. The plurality of permanent magnets forms at least 8 pairs of magnet poles with one or two permanent magnets being associated with one pair of magnetic poles. The stator includes a stator iron core, a plurality of stator teeth protruding inwardly from inner surface of the stator iron core, three groups of armature windings wound around each of the stator teeth, and a plurality of stator slots formed between two adjacent stator teeth. Each group of armature windings is associated with one electrical phase. An electrical phase shift exists between each two armature windings. | 2013-08-15 |
20130207501 | ROTARY ELECTRIC MACHINE - A rotary electric machine includes a rotor core in which first magnetic pole portions having permanent magnets and second magnetic pole portions having no permanent magnets are alternately arranged in a circumferential direction. Each of the second magnetic pole portions has at least one notch provided near the permanent magnet adjacent thereto. | 2013-08-15 |
20130207502 | ROTOR AND MOTOR - A rotor includes a field member arranged between a first core base of a first rotor core and a second core base of a second rotor core in the axial direction. When magnetized in the axial direction, the field member causes primary claw-shaped magnetic poles to function as primary magnetic poles and secondary claw-shaped magnetic poles to function as secondary magnetic poles. The field member is formed by placing a plurality of members one over another in the axial direction. | 2013-08-15 |
20130207503 | ROTOR AND MOTOR - A rotor includes a first rotor core, a second rotor core, a field magnet, and an adhesive. The first rotor core includes a first core base, having a first magnet fixing surface, and a plurality of first claw-poles. The second rotor core includes a second core base having a second magnet fixing surface, and a plurality of second claw-poles. The field magnet includes a first axial end face and a second axial end face. At least one of the first magnet fixing surface and the first axial end face includes a first adhesive recess that receives an adhesive. At least one of the second magnet fixing surface and the second axial end face includes a second adhesive recess that receives the adhesive. | 2013-08-15 |
20130207504 | STATOR MODULE AND MOTOR INCLUDING THE SAME - A stator module and a motor including the stator module are provided. The motor includes a stator and a stator module. The rotor includes a rotor core and a plurality of rotor poles arranged around a circumference of the rotor core, each generating a magnetic flux. The stator module includes a first stator and a second stator disposed coaxially with each other, each being rotatable in a circumferential direction and each having a coil wound thereon, and a rotation driving unit which controls a rotation of the first stator and the second stator through the same angle in opposite directions, thereby controlling a flux linkage of a rotor according to the rotational angle of each of the first stator and the second stator. | 2013-08-15 |
20130207505 | ROTOR WITH REINFORCED SQUIRREL-CAGE CONDUCTIVE BODY AND MANUFACTURING METHOD THEREOF - A rotor including a cylindrical iron core having a through hole for receiving a rotational shaft, and a squirrel-cage conductive body including a plurality of conductive bars and a pair of annular conductive end rings provided at both ends of the plurality of conductive bars is provided. The conductive bars extend along a direction in which the rotational shaft is received and are arranged at an outer circumference of the iron core at certain intervals. The rotor further includes a conductive reinforcing layer extends on at least a part of an outer surface of the conductive end ring. The conductive reinforcing layer is formed by spraying conductive particles in a solid phase onto the outer surface of the conductive end ring. | 2013-08-15 |
20130207506 | INSULATED STRUCTURE OF SHIELD TYPE MOTOR COIL - An insulated structure of shield type motor coil includes an iron core having a multiplicity of bobbins, at least a plastic shell having a multiplicity of insulators and is pressed against the iron core, a multiplicity of enamel-covered coils and each of the insulators is one-to-one correspondent to and pressed against the bobbin, a multiplicity of enamel-covered coils each of them is correspondent to and wound around the bobbin and the multiplicity of enamel-covered coils has a first connecting lead and a second connecting lead extended there from, a wire fastener secured in the plastic shell for holding the first connecting lead and the second connecting lead, a protecting jacket connected to the plastic shell and having a containing space for containing the multiplicity of enamel-covered coils, as well as a supporting frame for coating the protecting jacket and having a multiplicity of supporting posts thereof. | 2013-08-15 |
20130207507 | ROTOR ASSEMBLY FOR MOTOR AND MANUFACTURING METHOD THEREOF - Disclosed herein are a rotor assembly for a motor in which separation type rotor cores having the other polarity are disposed between core members of integral type rotor cores having one polarity and the separation type rotor cores and the integral type rotor cores are fixed to each other using wedges or injection molding materials that are formed of a non-magnetic material, such that movement of magnetic fluxes between the integral type rotor cores and the separation type rotor core may be minimized, and a manufacturing method thereof. | 2013-08-15 |
20130207508 | ROTARY ELECTRIC MACHINE - A rotary electric machine includes a rotor core in which first magnetic pole portions having permanent magnets and second magnetic pole portions having no permanent magnets are alternately arranged in a circumferential direction; and a stator core which is arranged to face an outer periphery of the rotor core. The rotor core is configured such that an average gap length between the stator core and the second magnetic pole portions is larger than an average gap length between the stator core and the first magnetic pole portions. | 2013-08-15 |
20130207509 | ELECTRIC COMPRESSOR - Provided is an electric compressor ( | 2013-08-15 |
20130207510 | POLYMER TRANSDUCER AND A CONNECTOR FOR A TRANSDUCER - The invention provides a transducer comprising conductors and a laminate. The laminate comprises a film of a dielectric polymer material arranged between first and second electrodes. Each electrode is in electrically conductive communication with at least one of the conductors to facilitate an electrical potential between the electrodes and thereby enable deflection of the polymer material in response to an electrical field. At least one of the conductors is an elastically deformable conductor comprising a compliant core which is electrically conductive. The core is enclosed in a containment having elastomeric properties. | 2013-08-15 |
20130207511 | METHOD AND APPARATUS FOR BUILDING THREE-DIMENSIONAL MEMS ELEMENTS - The disclosure generally relates to method and apparatus for forming three-dimensional MEMS. More specifically, the disclosure relates to a method of controlling out-of-plane buckling in microstructural devices so as to create micro-structures with out-of-plane dimensions which are 1×, 5×, 10×, 100× or 500× the film's thickness or above the surface of the wafer. An exemplary device formed according to the disclosed principles, includes a three dimensional accelerometer having microbridges extending both above and below the wafer surface. | 2013-08-15 |
20130207512 | PIEZOELECTRIC DRIVE ELEMENT AND PIEZOELECTRIC DRIVE UNIT - A piezoelectrically actuated element includes a composite ceramic to which an alternating electric field is applied through external electrodes that are orthogonal to the polarization direction, wherein the composite ceramic is formed from a first piezoelectric ceramic having soft spring characteristics such that the elastic constant decreases with increasing vibration velocity, and a second piezoelectric ceramic having hard spring characteristics such that the elastic constant increases with increasing vibration velocity. Even when the applied electric field is intensified to increase the vibration velocity of the piezoelectrically actuated element, the overall change in the elastic constant is minimized, and fluctuations in the resonance frequency is suppressed. | 2013-08-15 |
20130207513 | ELECTROMECHANICAL EFFECT IN METAL OXIDES - This invention provides an electromechanical device comprising an active material comprising a metal oxide such as Ce0.8Gd0.2O1.9 wherein the elastic modulus of metal oxide can be modulated by applying external electric field. The Ce0.8Gd0.2O1.9 layer in a substrate \ electrode \Ce0.8Gd0.2O1.9 \ electrode structure or conductive substrate \Ce0.8Gd0.2O1.9 \ electrode structure develops a stress upon applying an electric field. This invention provides methods for tailoring the elastic modulus of materials using an electric field for the generation of an electromechanical response. | 2013-08-15 |
20130207514 | ELASTIC WAVE DEVICE - An elastic wave device includes a piezoelectric substrate and an interdigital transducer electrode. The piezoelectric substrate includes a principal surface with a groove tapered in lateral cross section. The interdigital transducer electrode is arranged on the principal surface such that at least one portion thereof is located in the groove. The interdigital transducer electrode is a laminate including a first conductive layer, a second conductive layer, and a diffusion-preventing layer located between the first conductive layer and the second conductive layer and made of an oxide or nitride of Ti or Cr. | 2013-08-15 |
20130207515 | ACOUSTIC WAVE DEVICE - An acoustic wave device includes: a piezoelectric thin film resonator including: a substrate; a lower electrode formed on the substrate; at least two piezoelectric films formed on the lower electrode; an insulating film sandwiched by the at least two piezoelectric films; and an upper electrode formed on the at least two piezoelectric films, wherein an area of the insulating film within a resonance region, in which the lower electrode and the upper electrode face each other across the at least two piezoelectric films, is different from an area of the resonance region. | 2013-08-15 |
20130207516 | VIBRATING ACTUATOR ASSEMBLY AND DIGITAL IMAGE PROCESSING APPARATUS INCLUDING THE SAME - A vibrating actuator assembly including: a rotor that is rotatable; a first stator disposed at one surface of the rotor and including a first vibrating plate that is elastically deformable and a first vibrating device that is disposed at the first vibrating plate and transforms the first vibrating plate by vibrating when an electrical signal is applied; and a second stator disposed at the other surface of the rotor and comprising a second vibrating plate that is elastically deformable and a second vibrating device that is disposed at the second vibrating plate and deforms the second vibrating plate by vibrating when an electrical signal is applied, in which electrical signals having different phases are respectively applied to the first and second vibrating devices. | 2013-08-15 |
20130207517 | ULTRASONIC TRANSDUCER - An ultrasonic transducer includes an ultrasonic transmitting and receiving portion, a housing, a driving device, a casing, a first volume compensation mechanism, a ventilating portion, a diaphragm, and a component. The housing houses the ultrasonic transmitting and receiving portion, and the housing seals ultrasonic propagation liquid. The driving device is configured to drive the ultrasonic transmitting and receiving portion. The casing houses the driving device. The first volume compensation mechanism is configured to absorb a volume change of the ultrasonic propagation liquid. The diaphragm divides an internal space of the casing into at least a first internal space and a second internal space. The ventilating portion is configured to ventilate the first internal space to outside of the casing. The component is disposed in a space other than the first internal space in the internal space and includes a frame ground that electrically connects to an electrical circuit. | 2013-08-15 |
20130207518 | ELECTRICAL CONTACTS TO A RING TRANSDUCER - Various embodiments include apparatus and methods of providing a piezoelectric element having a surface front surface to operate as an active surface of a transducer on which a number of separate electrodes are disposed such that the electrodes on the front surface provide an effectively flat surface to the transducer. Additional apparatus, systems, and methods are disclosed. | 2013-08-15 |
20130207519 | METHODS FOR MANUFACTURING ULTRASOUND TRANSDUCERS AND OTHER COMPONENTS - The invention features methods for the manufacture of electrical components such as ultrasound transducers. In particular, the inventions provides methods of patterning electrodes, e.g., in the connection of an ultrasound transducer to an electrical circuit; methods of depositing metal on surfaces; and methods of making integrated matching layer for an ultrasound transducer. The invention also features ultrasound transducers produced by the methods described herein. | 2013-08-15 |
20130207520 | POWER GENERATOR - An electrical power generator has one or more serpentine elements that are made of a poled piezoelectric or electrostrictive ceramic, one or more electrically conductive shims or foils and at least two electrically conductive electrode coatings on the serpentine element. The conductive electrodes are further electrically connected to an electrical load or energy storage device or both, and the serpentine element is mechanically affixed to a source of compression or vibration or both. | 2013-08-15 |
20130207521 | SPRING DISC ENERGY HARVESTER APPARATUS AND METHOD - A method is disclosed for forming an energy harvesting device. The method may involve providing a disc spring and supporting an outer peripheral edge of the disc spring. A pre-load force may be applied to the disc spring which is directed along its axial center. While applying the pre-load force, a piezoelectric material may be fixedly secured to a surface of the disc spring. The disc spring may be supported from a peripheral edge thereof to allow oscillating motion thereof. The support element may be used to apply a predetermined preload force to the disc spring that reduces a stiffness of the disc spring. | 2013-08-15 |
20130207522 | ELECTROACTIVE ELASTOMER CONVERTER - An electroactive elastomer converter is described comprising at least one electroactive elastomer layer ( | 2013-08-15 |
20130207523 | PIEZOELECTRIC DEVICE - A piezoelectric device includes a piezoelectric vibrating piece and a base portion in a square shape. The piezoelectric vibrating piece includes a piezoelectric piece, a pair of excitation electrodes, and a pair of extraction electrodes. The base portion includes a pair of connecting electrodes on a first surface at a side of the piezoelectric vibrating piece and a pair of mounting terminals on a second surface. The base portion has short sides facing one another. The short sides include two pairs of castellations depressed toward a center side of the base portion and two pairs of side surface electrodes on the two pairs of castellations. The two pairs of side surface electrodes connect the first surface and the second surface. One pair of the two pairs of side surface electrodes each connect to the pair of connecting electrodes and the pair of mounting terminals. | 2013-08-15 |
20130207524 | MOUNTING STRUCTURE FOR POLYMER ACTUATOR - A movable side mounting portion transmits extension and contraction of a polymer actuator to an electric prosthetic hand. The polymer actuator deforms elastically in accordance with voltage application and returns to its original shape in accordance with stoppage of voltage application. A rear end of the polymer actuator is fixed and a front end of the polymer actuator is movable. When one of a pair of electrodes of the polymer actuator is electrically connected to the fixed side mounting portion, the fixed end is fastened by a bolt to the fixed side mounting portion. Also, when the other electrode is electrically connected to the movable side mounting portion, the movable end is fastened by a bolt to the movable side mounting portion. | 2013-08-15 |
20130207525 | RECTIFIER ARRANGEMENT HAVING SCHOTTKY DIODES - A rectifier system having press-in diodes that contain a Schottky diode as semiconductor element. The Schottky diodes are operated in an operating range in which the diode losses increase as the temperature increases. | 2013-08-15 |
20130207526 | Display Device with Frame Configuration - A display device includes a display module, an outer frame, an active engaging unit, and a passive engaging unit. The display module has at least one side surface. The outer frame surrounds the display module and has last least one inner surface facing the side surface, wherein a gap is formed between the inner surface and the side surface. The active engaging unit extends from the display module into the gap and further extends along the gap. The passive engaging unit is disposed on the inner surface and protrudes toward the side surface. The active engaging unit engages with the passive engaging unit to restrict the relative movement between the display device and the outer frame. | 2013-08-15 |
20130207527 | BACKING PIECE FOR ATTACHING AN ELECTRICAL COMPONENT TO A HOUSING WALL - A backing piece for attaching an electrical component to a housing wall of an electrical household appliance and arrangement behind a matching opening in the housing wall includes a body having an essentially rectangular base surface, and a peripheral web configured as an elastic sealing lip for support against a rear face of the housing wall. Holding elements project from the body and form with the sealing lip a gap which receives a section of the housing wall at an edge of the opening. The holding elements are arranged in spaced-apart relationship about a periphery of the body such that at least one of the holding element is arranged on each of four sides of the rectangular base surface and one of the holding elements is provided at each of the corners of the body so as to apply a pressing force sufficient upon each section of the sealing lip. | 2013-08-15 |
20130207528 | OCCUPANCY SENSOR WITH UNIVERSAL MOUNT - An occupancy sensor may include a plurality of user-selectable mounting features that enable the sensor to be mounted to building structure in a variety of ways. The sensor may include: a nipple for engaging a connector associated with the building structure; one or more key hole slots for engaging fasteners associated with the building structure; and one or more flat side surfaces for engaging corresponding flat surfaces of a mounting plate associated with the building structure. A spring on the flat side surface may lock the sensor to the mounting plate. The nipple may be removable to allow the sensor to be flush mounted to the building structure. The sensor may also include a user-adjustable lens that enables a user to make discrete adjustments of the field of view of the sensor according to present levels. Other embodiments are disclosed and claimed. | 2013-08-15 |
20130207529 | FREEWHEELING ROTARY DAMPING MECHANISM - A damping mechanism that includes a housing with an inner circumferential surface defined by an assembly outer race, an axle shaft that is rotatable with respect to the housing, and a transmission assembly operatively associated with the axle shaft and disposed within the housing. The transmission assembly includes an assembly intermediate race. A fluid space that includes fluid therein is defined between the assembly intermediate race and the inner circumferential surface of the assembly outer race. A vane is disposed between the assembly intermediate race and the inner circumferential surface of the assembly outer race. The vane includes a restriction space defined therein. When the axle shaft rotates in the first direction, the transmission assembly transmits rotation from the axle shaft to the vane, and when the axle shaft rotates in the second direction, the transmission assembly transmits less rotation to the first vane than when the axle shaft rotates in the first direction. | 2013-08-15 |
20130207530 | DOOR FOR REFRIGERATOR AND REFRIGERATOR HAVING THE SAME - A door for a refrigerator and a refrigerator having the same are provided. The door includes an upper door member disposed in an upper portion and a lower door member disposed under the upper door member and spaced apart from the upper door member. The door also includes a dispenser housing positioned between the upper door member and the lower door member and inwardly depressed to allow a dispenser having a discharge duct for discharging water and/or ice to be installed therein. The door further includes a coupling member that couples the dispenser housing to the upper door member or the lower door member. | 2013-08-15 |
20130207531 | SPARK GAP ARRANGEMENT COMPRISING TWO PREFERABLY FLAT, OPPOSING ELECTRODES THAT ARE HELD APART IN A HOUSING BODY - The invention relates to a spark gap arrangement comprising two preferably flat, opposing electrodes ( | 2013-08-15 |
20130207532 | LIGHT EMITTING DEVICE - A light emitting device includes a light emitting element, a wire connected to the light emitting element, and a substrate supporting the light emitting element. The substrate is formed with a first recess and a second recess that are open in a common surface of the substrate. The first recess includes a first bottom surface and a first side surface connected to the first bottom surface, and the light emitting element is disposed on the first bottom surface. The second recess includes a second bottom surface and a second side surface connected to the second bottom surface, and the wire is bonded to the second bottom surface. Both of the first side surface and the second side surface reach the common surface. The first side surface is connected to both of the second bottom surface and the second side surface. The opening area of the first recess is larger than the opening area of the second recess. | 2013-08-15 |
20130207533 | TL RETROFIT LED MODULE OUTSIDE SEALED GLASS TUBE - This invention relates to a lighting device comprising a light generation unit ( | 2013-08-15 |
20130207534 | LIGHT-DIFFUSING HEAT SHRINKABLE TUBE AND LINEAR LED LIGHT - The present invention aims to provide a light-diffusing heat shrinkable tube which has light diffusibility that enables LED point light sources to give an impression of a surface light source such as a conventional fluorescent lamp. The tube is also capable of suppressing scattering of broken fragments of a transparent pipe that includes the light sources, in the case of an unexpected accident including falling of the pipe. The present invention also aims to provide a linear LED light including the light-diffusing heat shrinkable tube. The light-diffusing heat shrinkable tube including a polyester resin and a light diffusing agent, the polyester resin having an inherent viscosity of 0.8 to 1.4 dl/g, the tube comprising 0.1 to 2.5 wt % of the light diffusing agent, the tube having a thickness of 60 to 300 μm. | 2013-08-15 |
20130207535 | Phosphor, Manufacture Thereof, Light-Emitting Device, and Image Display Device - Provided is a chemically-thermally stable phosphor having different emission characteristics from the conventional and exhibiting high emission intensity with an LED of 470 nm or less. A phosphor of the present invention includes A, D, E, and X elements (A is one or more kinds selected from Mg, Ca, Sr and Ba; D is one or more kinds selected from Si, Ge, Sn, Ti, Zr and Hf; E is one or more kinds selected from B, Al, Ga, In, Sc, Y and La; and X is one or more kinds selected from O, N and F), and an inorganic crystal of a crystal designated by Sr | 2013-08-15 |
20130207536 | Carbidonitride phosphors and LED lighting devices using the same - A red phosphor is provided. Also provided is a lighting apparatus containing a red phosphor. | 2013-08-15 |
20130207537 | Oxycarbidonitride based phosphors and LED lighting devices - A red phosphor is provided. Also provided is a lighting apparatus containing a red phosphor. | 2013-08-15 |
20130207538 | Phosphor, Manufacture Thereof; Light-Emitting Device, and Image Display Device Utilizing Phosphor - Provided is a chemically and thermally stable phosphor having different emission characteristics than the conventional phosphor and exhibiting high emission intensity if combined with an LED of 470 nm or less. The phosphor of the present invention is represented by a composition formula: M | 2013-08-15 |
20130207539 | ORGANIC ELECTROLUMINESCENT DISPLAY DEVICE - An organic electroluminescent display device includes an upper substrate, a lower substrate, an organic electroluminescent layer, an upper electrode, a lower electrode and a light filter. The organic electroluminescent layer is disposed between the upper substrate and the lower substrate. The organic electroluminescent layer includes a plurality of first electroluminescent units, a plurality of second electroluminescent units and a plurality of third electroluminescent units. Each first electroluminescent unit is employed to emit light within a first wavelength range, each second electroluminescent unit is employed to emit light within a second wavelength range, and each third electroluminescent unit is employed to emit light within a third wavelength range. The light filter is disposed between the upper substrate and the lower substrate to block the light not within the first wavelength range, the second wavelength range and the third wavelength range. | 2013-08-15 |
20130207540 | Organic Electroluminescent Element - Disclosed is an organic electroluminescent element which has high luminous efficiency, a low driving voltage, high durability in a high-current-density region, and little change in chromaticity before and after the driving in a high-current-density region. Specifically disclosed is an organic electroluminescent element comprising a pair of electrodes composed of an anode and a cathode, a light-emitting layer arranged between the electrodes, and at least one organic layer arranged between the light-emitting layer and the anode, wherein the light-emitting layer contains, for example, a compound (A), and at least one organic layer arranged between the light-emitting layer and the cathode contains, for example, a compound (a-3). | 2013-08-15 |
20130207541 | OLED with flexible cover layer - The invention relates to an OLED and its manufacture. The OLED comprises substrate ( | 2013-08-15 |
20130207542 | LIGHTING DEVICE - A lighting device that allows efficient heat discharge from a light source while avoiding accidents such as firing due to a flammable foreign object in contact with the light source or the like and failures such as reduction in luminous efficiency due to dust or the like adhered to and accumulated on the internal surface of a lens unit. | 2013-08-15 |
20130207543 | AUTOMOTIVE HEADLAMP APPARATUS FOR CONTROLLING LIGHT DISTRIBUTION PATTERN - An automotive headlamp apparatus includes headlamp units placed in a vehicle and a control unit which controls the illumination of the headlamp units. The headlamp units form a lower beam distribution pattern and an upper beam distribution pattern, and is configured so that a partial region of the upper beam distribution pattern can be non-illuminated. When the entirety of vehicle existent area of a vehicle-in-front travelling in front of a driver's vehicle is contained within the partial region, the control unit controls the headlamp units in such a manner that the partial region is non-illuminated; when at least a part of the vehicle existent area is contained within a region of the upper beam distribution pattern which is other than the partial region, the control unit controls the headlamp units in such a manner that the upper beam distribution pattern is not formed. | 2013-08-15 |
20130207544 | ILLUMINATION SYSTEM - An illumination system and methods for controlling the illumination system are provided. In one embodiment, the method includes providing a plurality of illumination sources, monitoring optical output power of the plurality of illumination sources over a period of time, and controlling the plurality of illumination sources to maintain a predetermined level of optical output power. The method further includes compensating for degradations of one or more of the plurality of illumination sources to maintain the predetermined level of optical output power, predicting a lifetime of the illumination system based on the parameters of the plurality of illumination sources, and performing periodic maintenance of the plurality of illumination sources according to a quality control schedule. | 2013-08-15 |
20130207545 | Device for the Controlled Generation of Electric Arcs - A device for the controlled generation of an electric arc comprises at least: a system for striking an electric arc on the terminals of two electrodes through inductive switching, producing at the output an overvoltage on the terminals of these electrodes; and a power source connected in series to the output of the striking system and loaded by an electric load, said power source supplying the electric arc with current. The device is applied notably to carry out reliable tests on electric arc detectors. | 2013-08-15 |
20130207546 | MICROWAVE SENSOR LED BULB - The invention relates to bulb technical field, and more particularly relates to microwave sensor LED bulb. A LED bulb includes a male plug, a housing, a LED light and a light cover. The male plug is disposed at top side of the housing while the LED light and the light cover are disposed at bottom side of the housing. The light cover covers the LED light. The LED bulb also includes a microwave sensor and the light cover covers the microwave sensor. The invention is not only convenient for use and also suitable for environment that needs automatic control. | 2013-08-15 |
20130207547 | MICROWAVE SENSOR LED LIGHT TUBE - The invention relates to illumination equipment and more particularly relates to microwave sensor LED light tube. The microwave sensor LED light tube includes a light cover, light heads, LED light and light tube body. The light head are disposed at two ends of the light tube body, the light cover is disposed on the light tube body, the light cover covers the LED light. The microwave sensor LED light tube also includes a microwave sensor and the light cover covers the microwave sensor. The invention is not only convenient for use and is also suitable for environment that needs automatic control. | 2013-08-15 |
20130207548 | LIGHT EMITTING DIODE AND INTEGRATED PACKAGE THEREFOR - An improved LED provides power efficient lighting while accepting a wide range of input voltages. The improved LED may comprise a controller that may measure a voltage, current, or other characteristics of input power and modify operation of the improved LED accordingly, such as to accept significantly more voltage or significantly less voltage while providing consistent light output. This allows light bulbs or other lighting to be easily manufactured with the improved LED. The improved LED may comprise the controller and one or more LED dies enclosed by a substrate and lens structure. Depending on the configuration of the controller, the improved LED may also provide time, temperature, and other measurement/response functions to help ensure consistent light output. | 2013-08-15 |
20130207549 | DEVICE FOR OUTPUTTING TEMPERATURE INFORMATION - An operating device ( | 2013-08-15 |
20130207550 | ILLUMINATION SYSTEM AND ILLUMINATION METHOD - An illumination system includes an excitation light source that emits excitation light, a phosphor unit that converts the excitation light emitted from the excitation light source into fluorescence to emit the fluorescence toward an illuminated object and a light source device including the excitation light source and the phosphor unit. The illumination system further includes a state confirming device that confirms a state of the light source device based on the state of the phosphor unit when connected to the light source device and the phosphor unit emits the fluorescence. | 2013-08-15 |
20130207551 | ILLUMINATING DEVICE - An illumination device that is operable while being transported and that can be placed, or is placed, in an object that can be opened and closed again. The illumination device comprises a first light source, an electric energy storage device, and a switch device that comprises a control unit including a sensor unit with which a first switching unit is transferable from an open switching state into a closed switching state. The first light source is suppliable with electric power from the electric energy storage device when a first sensor is touched and/or when said first sensor detects a motion. The sensor unit comprises a second sensor that at least detects if the object is open or closed. A second switching unit is transferable from an open switching state into a closed switching state in which the first light source and/or a second light source is/are supplied with electric power. | 2013-08-15 |
20130207552 | INTEGRAL TROFFER MOTION DETECTOR - A sensor system ( | 2013-08-15 |
20130207553 | Load Control SystemHaving a Rotary Actuator - A load control device for controlling the amount of power delivered from an AC power source to an electrical load comprises a rotary actuator, such as a rotary knob or a rotary wheel. The load control device increases and decreases the amount of power delivered to the electrical load in response to rotations of the rotary knob in first and second directions, respectively. The load control device accelerates the rate of change of the amount of power delivered to the load in response to the angular velocity of the rotary actuator. The load control device generates a ratcheting sound when the rotary actuator is rotated in the first direction at a high-end intensity of the load control device. The load control device is operable to control the electrical load in response to both actuations of the rotary actuator and digital messages received via a communication link. | 2013-08-15 |
20130207554 | POWER SUPPLY FOR ILLUMINATION AND LUMINAIRE - According to one embodiment, a luminaire includes a light-emitting module, a first lighting circuit and a back-flow preventing circuit. The light-emitting module includes a light-emitting element and a capacitive element. The first lighting circuit is supplied with power from the first power supply and is configured to activate the light-emitting element. The back-flow preventing circuit interrupts current flowing in a direction from the capacitive element to the first lighting circuit. | 2013-08-15 |
20130207555 | LED DRIVER SYSTEM WITH DIMMER DETECTION - An LED driver system including an input receiving a rectified AC conductive angle modulated voltage on a rectified node, a converter, a low-pass filter, and AC detector, and a driver network. The converter is to the rectified node and includes a power switching device coupled to a switching node, in which the power switching device is controlled to convert the rectified AC conductive angle modulated voltage to an output voltage and output current. The low-pass filter is configured to filter voltage of the switching node to provide a filtered voltage. The AC detector receives the filtered voltage and provides a current sense signal indicative thereof. The driver network controls duty cycle of the power switching device based on the current sense signal. | 2013-08-15 |
20130207556 | Reduction of Harmonic Distortion for LED Loads - Apparatus and associated methods reduce harmonic distortion of a excitation current by diverting the excitation current substantially away from a number of LEDs arranged in a series circuit until the current or its associated periodic excitation voltage reaches a predetermined threshold level, and ceasing the current diversion while the excitation current or voltage is substantially above the predetermined threshold level. In an illustrative embodiment, a rectifier may receive an AC (e.g., sinusoidal) voltage and deliver unidirectional current to a string of series-connected LEDs. An effective turn-on threshold voltage of the diode string may be reduced by diverting current around at least one of the diodes in the string while the AC voltage is below a predetermined level. In various examples, selective current diversion within the LED string may extend the input current conduction angle and thereby substantially reduce harmonic distortion for AC LED lighting systems. | 2013-08-15 |
20130207557 | LIGHT-EMITTING DIODE DRIVING CIRCUIT FOR LIGHTING - The present invention relates to a light-emitting diode (LED) driving circuit for lighting, which divides a specific pattern of driving data for a number of sections within one period or a half period of driving power, stores the divided data in a driving data storage device, and drives LEDs connected in series in an LED array unit using the driving data so as to drive the LEDs with high efficiency, a high power factor, and low total harmonic distortion (HTD). | 2013-08-15 |
20130207558 | ILLUMINATION DEVICE, ILLUMINATION SYSTEM, AND LAMP - The present invention provides an illumination device, an illumination system, and a lamp. The illumination system includes the illumination device and a light modulation module. The illumination device includes a light emitting diode (LED) array, an alternating current (AC) current source, and an output power control module. The AC current source is electrically coupled to the LED array. The output power control module is electrically coupled to the LED array and the AC current source. The LED array, the AC current source, and the output power control module together form a closed-loop control loop. The light modulation module is electrically coupled to the closed-loop control loop for modulating illumination brightness of the LED. | 2013-08-15 |
20130207559 | LINEAR BYPASS ELECTRICAL CIRCUIT FOR DRIVING LED STRINGS - An electrical circuit is described that comprises a first string and second LED string coupled in parallel, a first and second transistor, at least one bypass transistor, and a controller. The first transistor is coupled to the first LED string at a first terminal of the first transistor. The second LED string includes multiple LED color strings coupled in series. The second transistor is coupled to the second LED string at a first terminal of the second transistor. The bypass transistor is coupled to one of the color strings. A first terminal of the bypass transistor is coupled to a first terminal of the color string. The second terminal of the bypass transistor is coupled to a second terminal of the color string. The controller controls a gate voltage of the first and second transistors and the bypass transistor to operate all transistors in linear modes. | 2013-08-15 |
20130207560 | MULTI-OUTPUT CURRENT-BALANCING CIRCUIT - The present invention relates to a multi-output current-balancing circuit, which in one embodiment can include: (i) a transformer having a primary winding and a plurality of secondary windings, where the primary winding receives an AC input current; (ii) a plurality of first and second rectifier circuits and a plurality of first current balancing components, where each of the first and second rectifier circuits and the first current balancing components is coupled to a corresponding secondary winding, where each the first current balancing component is configured for current balancing between each of the first and second rectifier circuits of the corresponding secondary winding; and (iii) at least one second current balancing component, where each second current balancing component is coupled to a pair of the second rectifier circuits that correspond to different secondary windings, where the second current balancing components are configured for current balancing between different the secondary windings. | 2013-08-15 |
20130207561 | LED Light Tube and A Circuit Module for the Same - The invention relates to an LED light tube and a circuit module for the same, wherein the circuit is located in a light tube body and includes a rectifying unit, a current regulating and voltage regulating unit, and an LED unit. The light tube body can be installed in a lamp-holder of a fluorescent tube without changing a starter and a ballast. The rectifying unit has two power terminals connected to electrodes of the light tube body for receiving a mains power and the rectifying unit via the electrodes. The rectifying unit converts the mains power to a sign wave DC voltage. The current regulating and voltage regulating unit is connected to the rectifying unit for converting the mains power to a working power. The LED unit is electrically connected to the current regulating and voltage regulating unit for receiving the working power to emit light. | 2013-08-15 |
20130207562 | LED CENTRALIZED DC POWER SUPPLY SYSTEM AND OPERATING METHODS THEREOF - The invention provides a light emitting diode (LED) centralized DC (direct-current) power supply system and operating methods thereof. The proposed DC power supply system comprises a three-phase AC (alternating-current) input interface, a DC power supply output interface, N+1 three-phase PWM (pulse width modulation) rectifier modules, LED cluster loads and a power supply management module. The proposed operating methods are described as following: the power supply management module adjusts the duty ratio of the three-phase PWM rectifier modules, based on the control signals formed by synthesizing the information about voltage and current of the positive and negative output buses, the three-phase AC input ends, control signals and output of the three-phase PWM rectifier modules, hence AC voltage of power grid can be directly converted into adjustable DC voltage by the PWM rectifier. | 2013-08-15 |
20130207563 | POWER SUPPLY DEVICE AND LIGHTING DEVICE AND LIGHTING FIXTURE USING THE SAME - A power supply device comprises: a DC power supply section that outputs a DC voltage; a voltage conversion section that supplies a DC power to a load by ON/OFF drive of a switching element; a resistor; a control section that performs the ON/OFF drive of the switching element; and an auxiliary winding. The control section comprises: a calculation section that calculates a drive period of the switching element; a count section compares a calculation result obtained in the calculation section with an upper limit value of the drive period; and a flip-flop. When the calculation result is shorter than the upper limit value, the flip-flop sets the drive period, using the calculation result. When the calculation result is longer than the upper limit value, the flip-flop sets the drive period, using the upper limit value. | 2013-08-15 |