41st week of 2009 patent applcation highlights part 24 |
Patent application number | Title | Published |
20090251833 | Electrostatic discharge protection device for high speed transmission lines - A semiconductor device for coupling a transient voltage at an input node to a reference node, the device having a bipolar transistor adapted to couple its collector to an input node and its emitter to the reference node and a driver device adapted to be coupled between the input node and the base terminal of the transistor such that the driver device is responsive to a transient voltage at the input node to turn on the transistor, thereby shunting the transient voltage to the reference node. Preferably, the input node is coupled to a high speed data transmission line that operates below 5 v and the reference node is coupled to ground and the transistor is an NPN transistor. The driver may preferably be a gate-drain connected MOS transistor with its gate-drain terminal coupled to the collector terminal of the transistor and its source terminal coupled to the base terminal of the transistor. Alternatively, the driver may be a light emitting diode (LED) or any other diode with a different material (band-gap) and die size than the LED, connected to the bipolar transistor to create a low voltage clamping device. | 2009-10-08 |
20090251834 | SEMICONDUCTOR DEVICE, DISPLAY DEVICE, AND ELECTRONIC APPARATUS - To prevent an electrostatic damage on a display device formed with a driving circuit. Protective circuits are provided not only at input terminal parts, but also at intermediate parts of a circuit or at the ends of wiring lines. Otherwise, the protective circuits are provided at the ends of the wiring lines and at the places immediately before and after the input terminals, respectively, and then the circuit is interposed therebetween. Further, the protective circuits are provided around a circuit with a large current consumption. | 2009-10-08 |
20090251835 | SAFETY SWITCH DEVICE - A safety switch device for switching a power supply for a load on and off, having at least one driveable switching element, in particular a relay, and a safety circuit for checking a switching state of the switching element. The switching element is in the form of a changeover switch in such a manner that a first contact is electrically connected to either a second contact or a third contact by means of a switching operation. A method for operating a safety switch device is also provided. | 2009-10-08 |
20090251836 | CIRCUIT BREAKER METER - An electricity metering arrangement comprises a circuit breaker with an installed light indicating electricity meter displayed on the front of the unit. The electricity meter comprises a light indicating unit which may be a LED light or LCD display. The circuit breaker based on the invention is combined with a circuit breaker housing ( | 2009-10-08 |
20090251837 | System and Method for Information Handling System Display Backlight Protection and Monitoring - A current limiting MOSFET monitors power applied to a direct current boost regulator that powers an LED backlight to automatically shut off power to the boost regulator if the current exceeds a predetermined amount. An embedded controller interfaces with the current limiting MOSFET for normal control of operation of the boost regulator by turning the MOSFET on and off. An overcurrent alert is communicated from the MOSFET to the embedded controller if the current exceeds the predetermined amount so that the embedded controller shuts off power to the boost regulator and indicates the failure to an end user. | 2009-10-08 |
20090251838 | SAFETY DEVICE FOR A SEMICONDUCTOR SWITCH - A safety device for a semiconductor switch controlling a secondary line provided with a fuse on the input side of the switch device that includes component to create a short circuit in the secondary line, so as to cut off the fuse, and means of activating this component following detection of an overcurrent in the secondary line. | 2009-10-08 |
20090251839 | SHOCK PROOF DEVICES AND METHODS - Devices and methods for preventing shock from a high voltage power source. In one embodiment, a device for preventing an electric shock, comprises output terminals for connecting to an external load, a low voltage circuit for carrying a first current (I | 2009-10-08 |
20090251840 | QUARTER WAVE STUB SURGE SUPPRESSOR WITH COUPLED PINS - A surge suppressor for protecting electronic equipment by suppressing damaging surges of low frequency signals in a radio frequency (RF) transmission line, while allowing RF signals of a desired frequency range to pass through the transmission line. The surge suppressor can comprise a housing, a center pin connected to a stub, and at least one interface pin conductively coupled to the cable and capacitively coupled to the center pin. The surge suppressor can have a signal pass through bandwidth approximately 10 times exceeding the bandwidth of traditional quarter wavelength stub (QWS) devices, a higher return loss, and higher surge attenuation level. The surge suppressor can be symmetrically insertable into a cable providing an RF communication line. | 2009-10-08 |
20090251841 | INCORPORATING ELECTROSTATIC PROTECTION INTO MINIATURE CONNECTORS - Electrostatic discharge protection, also known as ESD protection, is provided in the form of a discrete array with a voltage variable material (VVM) or a VVM device. The array is fabricated with a common electrode for connection to ground, and one or more electrodes configured for connection to an electrical component. The electrical component is a connector attached to an electrical circuit containing devices subject to damage by ESD events. The array is placed into a pocket or space on the connector and is held in place mechanically by spring force or by soldering to leads or electrodes of the connector. The array may be soldered to a ground connection or held in place by pressure, such as from a spring or from an outer housing or shell. In some embodiments, the array is removable from the component without affecting component circuits other than removal of ESD protection. | 2009-10-08 |
20090251842 | RELAY DRIVE MATRIX - A microprocessor-based control system is provided that comprises a plurality of latching relays, at least some of which may be connected in parallel. A momentary application of voltage of a first polarity or a second polarity to the coil causes the latching relay contacts to switch and remain in an open or closed state respectively. An individual relay driver circuit is provided for a corresponding latching relay or set of latching relays, and has a first and second switch that respectively apply a voltage or a ground connection to a first end of each coil corresponding to the individual relay driver. The control system includes a common relay driver connected to at least one of the latching relays for each relay drive circuit, and has a first and second switch that respectively apply a voltage or a ground connection to the second end of the latching relay coils connected to the common relay driver circuit. | 2009-10-08 |
20090251843 | VEHICLE-MOUNTED ELECTRONIC APPARATUS AND VEHICLE WITH THE SAME MOUNTED THEREIN - An inverter unit includes a conductive housing ( | 2009-10-08 |
20090251844 | Transformer Assembly and Methods of Use - A transformer assembly is described. Embodiments of the transformer assembly are adapted to facile disconnection and removal of a transformer from the transformer assembly without disconnecting metered service power lines from secondary connector blocks. Moreover, embodiments of the transformer assembly are adapted to de-energize the transformer without interrupting primary power to downstream devices, and to safely and easily park energized or de-energized connectors such as loadbreak elbows during transformer maintenance. Methods of using the transformer assembly are also described. | 2009-10-08 |
20090251845 | HIGH ASPECT RATIO OPENINGS - A capacitor forming method includes forming an electrically conductive support material over a substrate, with the support material containing at least 25 at % carbon. The method includes forming an opening through at least the support material where the opening has an aspect ratio of at least 20:1 within a thickness of the support material. After forming the opening, the method includes processing the support material to effect a reduction in conductivity, and forming a capacitor structure in the opening. | 2009-10-08 |
20090251846 | EMBEDDED CAPACITOR - An embedded capacitor including a dielectric layer disposed between opposing faces of electrodes, in which the dielectric layer includes a high-loss dielectric layer and one or more insulating layers in contact with the high-loss dielectric layer. The dielectric layer may have a two-layer structure or a three-layer structure in which an insulating layer is additionally interposed between the high-loss dielectric layer and the electrode, thereby decreasing the dielectric loss while maintaining a high dielectric constant, compared to capacitors including a single-layer dielectric structure. | 2009-10-08 |
20090251847 | CAPACITOR WITH SACRIFICIAL LEAD WIRE CONFIGURATION AND IMPROVED MANUFACTURING METHOD THEREOF - The capacitor has a monolithic anode and at least one anode lead wire extending from the anode. At least one sacrificial lead wire extends from the anode. A dielectric layer is on said anode and a cathode layer is on the dielectric layer. The anode lead wire is in electrical contact with the anode and a cathode lead is in electrical contact with the cathode. | 2009-10-08 |
20090251848 | DESIGN STRUCTURE FOR METAL-INSULATOR-METAL CAPACITOR USING VIA AS TOP PLATE AND METHOD FOR FORMING - A design structure for a metal-insulator-metal (MIM) capacitor using a via as a top plate and method for forming is described. In one embodiment, the MIM capacitor structure comprises a bottom plate and a capacitor dielectric layer formed on the bottom plate and at least one via formed on the capacitor dielectric layer. The at least one via provides a top plate of the MIM capacitor. | 2009-10-08 |
20090251849 | Energy Storage Device Having Novel Energy Storage Means - Disclosed is an energy storage device having high energy density and excellent power density. For example, electric double layer capacitors, redox capacitors, lithium ion electrolyte type capacitors and devices applying any of them are greatly improved in the energy density without deteriorating their advantages such as high power density, high charge/discharge efficiency and long life. Specifically disclosed is an energy storage device containing a positive electrode, a negative electrode and an electrolyte solution, which device is characterized in that a compound capable of performing a doping/dedoping reaction is present in the electrolyte solution. | 2009-10-08 |
20090251850 | Lock for a housing - A lock for a housing may have a protrusion, an opening, a receptacle, and a ramp. The protrusion is formed in a first side wall of a first member of the housing, and the opening is defined in the first side wall. The receptacle extends from a second side wall of a second member of the housing, and is in some ways complementary in shape and in dimensions to the protrusion. The ramp is formed in the second side wall. When the first member and the second member are assembled, the protrusion and the receptacle are mated to form a water-tight seal therebetween, while the ramp is received within the opening. | 2009-10-08 |
20090251851 | TELECOM POWER DISTRIBUTION UNIT WITH INTEGRATED FILTERING AND TELECOM SHELF COOLING MECHANISMS - The present invention provides highly efficient system level EMI filtering in a dual feed Power Distribution Unit (PDU) using custom designed magnetic components that are uniquely designed to provide excellent performance under various load conditions. The PDU of the present invention includes filters for providing the necessary EMI filtering at all frequencies in the range between 200 Hz and 200 MHz under all load conditions including a single feed failure. Additionally, the present invention provides mechanisms for cooling EMI components using a combination of natural convection and conduction techniques at the board level to ensure no loss of EMI filtering performance. The present invention also includes blank panels made of formed Aluminum alloy sheet metal pieces or the like to direct air flow to components on printed wiring boards (PWB's) using air director plates. | 2009-10-08 |
20090251852 | Field Rephaseable Modular Metering Devices - A field rephaseable metering device is provided including at least three distribution buses including two side buses and a center bus, the center bus having a vertical center line. At least one meter socket is provided having a vertical center line offset from the vertical center line of said center bus, each meter socket including a first line terminal and a second line terminal. At least two line straps are provided, each having a first end configured for connecting with one of the first or second line terminals, and a second elongate end configured to be selectively connectable to one of the side buses associated with its line terminal or the center bus. When each line strap is positioned to connect one of the line terminals with one of the distribution buses, a longitudinal axis of each line strap is substantially perpendicular to a longitudinal axis of each distribution bus. | 2009-10-08 |
20090251853 | HEAT-SINK BRACE FOR FAULT-FORCE SUPPORT - A support system for an electrical device arranges the plurality of heat-sink assemblies in an orientation that allows the forces associated with an electrical fault that are transferred to the support structure to be reduced. The arrangement allows the electrical fault forces to cancel one another out such that the resulting net force applied to the support structure is significantly reduced. The size, strength and/or robustness of the support system can be reduced as the forces transmitted thereto are greatly reduced. The heat-sink assemblies can be arranged to facilitate ease of maintenance by allowing the heat-sink assemblies to be removed from a front access panel of the electrical device. | 2009-10-08 |
20090251854 | HANDHELD ELECTRONIC COMMUNICATION DEVICE TRANSITIONABLE BETWEEN COMPACT AND EXPANDED CONFIGURATIONS - A handheld electronic communication device that is transitionable between compact and expanded configurations is disclosed. The device includes a display panel positioned adjacent and parallel to a keyboard panel in the compact configuration. The display panel and keyboard panel are coupled together by one or more connectors. In at least one embodiment, the at least one connector enables relative x and z direction motion between the panels, while maintaining them in parallel. In at least one other possible embodiment the display panel can be shifted sideways from the keyboard to expose one or more keys. This other at least one possible embodiment is particularly useful when the device is used as a multimedia player and it is undesirable to expose the entire keyboard panel. | 2009-10-08 |
20090251855 | FLAT DISPLAY PANEL MODULE AND FLAT DISPLAY APPARATUS - A technique for improving impact resistance performance of a panel is provided in a module or display apparatus with a flat display panel. In a PDP module, a filter is bonded onto a front surface side of a PDP, and a base chassis is bonded to a rear surface side with a two-sided tape. In an attaching portion for the base chassis and a casing, a spring structure portion having a sloped portion and a space is provided in an area of the base chassis so as to correspond to a connecting part of the casing. Impact to glass of the PDP is buffered to an impact force in a direction vertical to a surface of the PDP due to a spring property of the spring structure portion. | 2009-10-08 |
20090251856 | Expansion card retention device and methods thereof - A retention device for computer expansion cards, a system including the device, a method of manufacture of the device, and a method of using the device, where the retention device includes a retention clip configured to engage the bracket of the expansion card to reduce flex and rotation of an expansion card when the expansion card and the retention device are installed in an expansion card bay of a computer system, and wherein the retention clip is configured to contact the proximal end of the expansion card. | 2009-10-08 |
20090251857 | SYSTEM INCLUDING AN ELECTRONIC MODULE WITH A HEAT SPREADER - A system including an electronic module with a heat spreader. One embodiment provides a plate including a thermally conductive material and a guiding member arranged along an edge of the plate. The plate and the guiding member of the heat spreader are configured to form, when attached to a first memory module, together with another heat spreader attached to a second memory module or together with a wall of another device, a duct channeling a flow of a coolant. | 2009-10-08 |
20090251858 | Electric power converter and mounting structure of semiconductor device - An electric power converter has a main circuit section including a semiconductor module and a cooling device; a control circuit substrate section electrically connected to a signal terminal of the semiconductor module, and having a control circuit; and a power wiring section connected to a main electrode terminal of the semiconductor module. The main circuit section is interposed between the control circuit substrate section and the power wiring section. | 2009-10-08 |
20090251859 | Electronic power converter and mounting structure of semiconductor device - An electric power converter has a main circuit section including a semiconductor module and a cooling device; a control circuit substrate section electrically connected to a signal terminal of the semiconductor module, and having a control circuit; and a power wiring section connected to a main electrode terminal of the semiconductor module. The main circuit section is interposed between the control circuit substrate section and the power wiring section. | 2009-10-08 |
20090251860 | POWER-EFFICENT DATA CENTER - An illustrative power-efficient data center is described for operating in an uncontrolled environment in one scenario. The data center includes an air moving system that applies unconditioned air to its resource items. The resource items are stripped down to provide a substantially minimum set of components for performing the data center's core functions. Various illustrative techniques for managing a power-efficient data center are also described. | 2009-10-08 |
20090251861 | HEAT DISSIPATION DEVICE FOR EXPANSION CARD AND BRACKET THEREOF - The invention relates to a heat dissipation device with a bracket for dissipating heat of a heating element of an expansion card. The heat dissipation device also includes an auxiliary card, a heat dissipating element. The bracket includes a securing element configured for securing the heat dissipating element thereto, a locking element, and a connecting element connecting the securing element to the locking element. The securing element clamps the expansion card, and the locking element is slidably mounted to the auxiliary card, to align the heat dissipating element with the heating element of the expansion card. | 2009-10-08 |
20090251862 | SILICON BASED MICROCHANNEL COOLING AND ELECTRICAL PACKAGE - A chip package includes: a substrate; a plurality of conductive connections in contact with the silicon carrier; a silicon carrier in a prefabricated shape disposed above the substrate, the silicon carrier including: a plurality of through silicon vias for providing interconnections through the silicon carrier to the chip; liquid microchannels for cooling; a liquid coolant flowing through the microchannels; and an interconnect to one or more chips or chip stacks. | 2009-10-08 |
20090251863 | MOUNTING DEVICE FOR MOUNTING HEAT SINK ONTO ELECTRONIC COMPONENT - An electronic apparatus includes a PCB with a heat generating electronic component disposed thereon, a heat sink, and a mounting device for mounting the heat sink onto the heat generating electronic component. The mounting device includes a mounting frame and a wire clip. The mounting frame surrounds the heat sink, and includes two first mounting arms and two second mounting arms disposed above the first mounting arms. The first mounting arms abut on the PCB. A pair of engaging wings are formed on the second mounting arms. The wire clip includes a pivot axis pivotably attached to the mounting frame and two resilient arms at opposite sides of the mounting frame. The resilient arms abut against the heat sink and engage with the engaging wings, thereby exerting a resilient force on the heat sink toward the heat generating electronic component. | 2009-10-08 |
20090251864 | METHOD FOR INTEGRATING HEAT TRANSFER MEMBERS,AND AN LED DEVICE - Disclosed is a method for integrating at least two heat transfer members to provide an integrated composite member, the method comprising:
| 2009-10-08 |
20090251865 | Heatsink of heat-producing device - There is provided a heatsink for radiating heat from a heat-producing device. The heatsink includes a heatsink body; a clip that has a pair of arms and is fitted to the heatsink body along a heat radiation surface of the heat-producing device such that the heat-radiation surface of the heat-producing device and the heatsink body closely contact with each other while being sandwiched between the pair of arms; and a guide plate integrally formed with the heatsink body. The guide plate is configured such that an interval between the guide plate and the heatsink body is smaller than an arm interval between the pair of arms of the clip on a front side in a fitting direction of the clip and is larger than the arm interval on a deep side in the fitting direction of the clip. | 2009-10-08 |
20090251866 | ELECTRICAL CONFIGURATION AS HEAT DISSIPATION DESIGN - An electrical configuration having at least one component which has at least one current bar, particularly a lead frame, and having an electronic circuit which has at least one heat dissipation surface and at least one electric terminal that is connected mechanically and electrically to the current bar. It is provided that the unit made up of the component and the electronic circuit is mounted on a support layer that effects the heat dissipation in such a way that, because of the fastening of the component onto the support layer, the heat dissipation surface is pushed against the support layer, based on the spring property of the current bar. | 2009-10-08 |
20090251867 | RECONFIGURABLE, MODULARIZED FPGA-BASED AMC MODULE - A standard compliant printed circuit base boards or modules for telecommunications, networking and computer equipment electrically and mechanically couples with reusable modular daughter cards to provide application-specific functionality within spatial limitations as required to comply with industry specifications. In particular, an Advanced Mezzanine Card (AMC) Specification compliant printed circuit board is configured for releseably coupling with one or more reusable daughter cards to provide reconfigurable, modularized and scalable electrical functionality in an AMC form factor. | 2009-10-08 |
20090251868 | REMOTE CONTROL DOCK SYSTEM AND METHOD - A vehicle entertainment system and method to prevent a mechanical connection between certain components of an entertainment system for a vehicle can include an entertainment system housing containing a plurality of entertainment components and a remote control module. The remote control module can include a user interface on a surface of the remote control module. In addition, the remote control module can be configured to prevent secure mounting of the remote control module to the entertainment system housing when the remote control module is not the appropriate remote control module for the particular vehicle entertainment system. | 2009-10-08 |
20090251869 | Multilayer ceramic substrate, electronic component, and method of manufacturing multilayer ceramic substrate - A multilayer ceramic substrate in which an active element and a passive element are surface-equipped over the outermost surface on one side is provided. The multilayer ceramic substrate comprises a plurality of laminated ceramic substrate layers, a surface layer terminal electrode provided in a via hole of an outermost ceramic substrate layer on at least one side and having a surface layer via electrode and a metal plating layer deposited over an end surface of the surface layer via electrode, and a via conductor which connects the surface layer terminal electrode and circuit patterns over the ceramic substrate layer at the inside, wherein a via hole size of a surface layer terminal electrode for connection of the active element is smaller than a via hole size of a surface layer terminal electrode for connection of the passive element. | 2009-10-08 |
20090251870 | PORTABLE TERMINAL - A portable terminal is provided, which can be thinned as a whole and can reduce a dimension of a step between a first housing and a second housing. | 2009-10-08 |
20090251871 | RETAINING FACILITY FOR PRINTED CIRCUIT BOARDS ON CURVED SURFACES - A retaining facility for clearance-free fixing of a printed circuit board onto a one-dimensional curved surface is provided. In the direction of curvature of the one-dimensional curved surface, a tensile or compressive force acts on the printed circuit board or on at least one first connection device connected to the latter, with the printed circuit board being bent and pressed onto the curved surface. In this way the printed circuit board is held solidly and with little vibration on the surface even when acted on by centrifugal forces. | 2009-10-08 |
20090251872 | POWER SUPPLY ARCHITECTURE FOR STRUCTURAL ASIC - A power supply architecture for a structural application-specific integrated circuit (ASIC) is provided. The power supply architecture includes a first conductor and a second conductor. The first conductor is coupled to a fixed voltage. The first conductor at least passes through two edges of a cell. The first conductor and the second conductor are connected through a contact. The second conductor at most passes through one edge of the cell. The structural ASIC includes a first metal layer and a second metal layer. The first metal layer includes the first conductor. The second metal layer includes the second conductor. | 2009-10-08 |
20090251873 | Surface Mount Power Module Dual Footprint - A dual footprint mounting package for a surface mount power converter modules and its method of manufacture. Castellated regions are formed on the edge of the component package using the appropriate sized drill or milling bit. Edge plating is applied to the castellated surfaces to create edge pads. The edge plating provides electrical continuity between the edge pads and the SMT pads. Solder mask, or other materials, is applied to prevent solder from wicking between each SMT pad and its respective edge pad. Such component may be attached to a larger device PWB using either the edge pads or the SMT pads, or may even be attached using a combination of the two, such as in the event of a pad failure or other defect. | 2009-10-08 |
20090251874 | SOLDER BALL INTERFACE - An intercoupling component is provided that electrically connects the device leads of an integrated circuit package to a substrate. The package includes external device leads, each device lead having a downwardly extending section proximate a side of the package body, and the intercoupling component includes an insulating support member. The support member includes a first surface including first electrical attachment sites, each configured for making an electrical connection with a corresponding one of the device leads of the package. The support member also includes an opposite second surface including second electrical attachment sites in electrical contact with the first electrical attachment sites, each of the second electrical attachment sites including a plurality of solder balls associated with each device lead. The plurality of solder balls are used to form an electrical connection between each surface mount pad on the substrate and the corresponding conductive pad of the intercoupling component. | 2009-10-08 |
20090251875 | POWER CONVERTER APPARATUS - A power converter apparatus that includes a substrate, plate-like positive and negative interconnection members, and capacitors is disclosed. Pairs of groups of switching elements are mounted on the substrate. Each of the positive interconnection member and the negative interconnection member has a terminal portion. The terminal portion has a joint portion that is electrically joined to a circuit pattern on the substrate. The switching elements are arranged in the same number on both sides of the joint portion of at least the positive interconnection member of the positive and negative interconnection members. | 2009-10-08 |
20090251876 | PRINTED CIRCUIT BOARD - A printed circuit board is disclosed. The printed circuit board comprises a substrate having a top surface and a bottom surface. A ground plane is on the bottom surface. A signal trace is on the top surface along a first direction. At least two isolated power planes are on the top surface adjacent to opposite sides of the signal trace, respectively. A conductive connection along a second direction couples to the two power planes, across the signal trace without electrically connecting to the signal trace, wherein the signal trace doesn't directly pass over any split of the ground plane. | 2009-10-08 |
20090251877 | ELECTRONIC PART-CONNECTING STRUCTURE - An electronic part-connecting structure is used in an electrical equipment including a housing, and bus bars which are mounted on the housing and have a plurality of pairs of opposed press-contacting blades to which electronic parts for circuit-protecting purposes are electrically connected by pressing. Positioning ribs are formed in proximity respectively to the press-contacting blades so as to position lead portions of the electronic parts at the respective press-contacting blades. | 2009-10-08 |
20090251878 | Electronic Assembly and Method for Making Electronic Devices - An electronic assembly includes: a circuit substrate with a first mounting surface that has a plurality of spaced apart first mounting regions and at least one second mounting region spaced apart from the first mounting regions; a plurality of first electronic components mounted on the first mounting regions, respectively; and at least one dummy of a non-electronic component mounted on the second mounting region and having dimensions simulating those of the first electronic components. A method for making electronic devices is also disclosed. | 2009-10-08 |
20090251879 | DIE THINNING PROCESSES AND STRUCTURES - Microelectronic dies are thinned according to a variety of approaches, which may include bonding the dies to a substrate under vacuum, disposing a film over the dies and the substrate, and/or changing a center of pressure during thinning. | 2009-10-08 |
20090251880 | DISPLAY MOUNTING SYSTEM - A mounting system for use in mounting products such as audio/visual devices to a surface such as a wall. According to various embodiments, one or more surface mounting structures are configured to attach to a surface such as a wall, while one or more device mounting structures are configured to attach to a device such as a flat panel display. Mating “touch” or “burr” fasteners on at least one surface mounting structure and at least one device mounting structure serve to inhibit the movement or rotation of these components relative to each other when the mounting system is in an assembled position. | 2009-10-08 |
20090251881 | Motor Vehicle Headlight - A motor vehicle headlight is provided having a basic light source, a swiveling device which is equipped for swiveling the basic light source about a basic swiveling angle, and an infrared radiation source which is coupled with the swiveling device such that, when the basic light source is swiveled by the swiveling device about a basic swiveling angle, the infrared radiation source is swiveled by the swiveling device about an infrared swiveling angle deviating from the basic swiveling angle. | 2009-10-08 |
20090251882 | LIGHT-EMITTING DIODE ILLUMINATION STRUCTURES - Illumination device embodiments are provided which include a transparent bulb that carries at least one phosphor. A redirector is positioned within the bulb and at least one light-emitting diode (LED) is positioned over the redirector to be energized and emit light that excites the phosphor. The redirector helps to diffuse the resultant mix of LED-emitted light and phosphor-emitted light that issues from the device. The redirector also provides a heat path away from the LEDs. In a device embodiment, LEDS form first and second diode groups that have emission peaks in different regions. Selectively energizing these groups alters the color temperature of the device's light. Energizing both groups and varying currents of each group also alters the color temperature of the device's light. In other device embodiments, the redirector has a portion outside the bulb which may also define protuberances that enhance heat radiation. In yet other device embodiments, each LED may have an associated phosphor. Some embodiments may be further enhanced by the further addition of a phosphor to the bulb. | 2009-10-08 |
20090251883 | Light-emitting device as well as lighting apparatus and display apparatus using the same - A light-emitting device including a semiconductor laser element having at least a substrate, a first conductive type clad layer, an active layer, and a second conductive type clad layer in this order; and a phosphor absorbing a laser light emitted from the semiconductor laser element and radiating fluorescence, wherein the semiconductor laser element is a self-oscillation laser element. | 2009-10-08 |
20090251884 | LIGHTING FIXTURE USING SEMICONDUCTOR COUPLED WITH A REFLECTOR HAVING REFLECTIVE SURFACE WITH A PHOSPHOR MATERIAL - To improve semiconductor-based systems for generating white light, a phosphor is integrated with an external structure, such as a reflector. A disclosed exemplary system, for illumination applications, utilizes one or more semiconductor devices for emitting radiant energy of a first wavelength. A reflector outside the package of the LED or other semiconductor device has a reflective surface arranged to receive radiant energy from the energy source. At least some of the received radiant energy of the first wavelength excites one or more phosphors associated with an external light processing element, for example, located along the surface of the reflector, to emit light, including visible light energy of at least one second wavelength different from the first wavelength. In the examples, at least some of visible light emitted by the phosphor is reflected by the reflective surface of the reflector and directed to facilitate the particular humanly perceptible luminance or illumination application. | 2009-10-08 |
20090251885 | Backlight Module - A backlight module includes a frame, a light bar, and a locating bar. The locating bar is connected between two sides of the frame. The light bar includes a circuit board and a plurality of lighting units, where the circuit board is secured on a support of the frame, and where the plural lighting units are engaged with plural locating grooves of the locating bar, such that the lighting units are confined by the locating grooves in a lateral direction. Therefore, during the steps in assembling the light bar, not only personnel are facilitated in the assembly work, but also the light bars can be sieved out during the assembly process, preventing the defect of material waste if illumination test is performed only after the whole backlight module has been finished. | 2009-10-08 |
20090251886 | LIGHT-EMITTING DISPLAY DEVICE APPLING CRYSTAL - A light emitting display device equipped with a transparent crystal is disclosed which comprises an outer casing which is embedded under the ground and forms an outer structure; a transparent crystal member which is inserted into the interior of the outer casing and reflects light using a reflection mirror effect of an inner vertical wall surface of the same; a solar cell module which is impregnated into a space formed at a center lower surface of the transparent crystal member with the help of a molding liquid and concentrates a sunshine and converts a light energy into an electrical energy and changes the same; and a light emitting unit which is engaged at a lower surface of a surrounding portion of the transparent crystal member and emits light to the outside based on a power supply by means of the sunshine or the solar cell module. | 2009-10-08 |
20090251887 | UMBRELLA LIGHTING APPARATUS - A lighting apparatus for attachment to an umbrella pole comprising, at least one arm having a first arm section, a second arm section, and a first hinged connection between a first end of said first arm section and a first end of said second arm section, an attachment means having a second hinged connection to a second end of said first arm section and securable to said umbrella pole, a connection means having a third hinged connection to a second end of said second arm section and slideably connected around the umbrella pole, and a lighting means on said at least one arm configured and disposed for illumination underneath said lighting apparatus wherein said hinge means, attachment means and connection means are configured and located to permit the at least one arm to move from an extended position away from the umbrella pole to a closed position substantially parallel to the umbrella pole. | 2009-10-08 |
20090251888 | DISPLAY APPARATUS - A display apparatus ( | 2009-10-08 |
20090251889 | Tactical lighting system - Portable projectable infrared lights are used to mark and illuminate dark areas such as rooms in a building or cells in a prison. The lights cannot be seen with the unaided eye but are brilliantly visible with the aid of night vision goggles and similar infrared receivers and light transducers which convert infrared light to visible light. In those cases where potentially hostile individuals are equipped with night vision apparatus, the infrared lights can be used to temporarily blind, stun and/or disorient them. | 2009-10-08 |
20090251890 | LAMP TUBE AND DESK LAMP HAVING THE SAME - The present invention relates to a lamp tube suitable for a desk lamp. The lamp tube includes a lamp cover, a light-emitting module, a base, a power-storage element and a power transmission module. The lamp tube is half-cylindrical and has a inner surface and a containing recess. The inner surface is capable of being fixed with the light-emitting module and the containing recess is capable of containing the power-storage element. The power transmission module is electrically connected to the power-storage element and the light-emitting module to transmit the power in the power-storage element to the light-emitting module. The present invention is also relates to a desk lamp having the lamp tube. | 2009-10-08 |
20090251891 | Portable Illuminator - Disclosed is a portable illuminator, capable of variously adjusting an angle and a length and simultaneously charging batteries used in various mobile products while serving as a reading lamp, a table lamp, and any other ordinary lamp. The portable illuminator includes a power supply and control module supplying power to control operation of a lamp, a guide and pivot main body pivotably coupled to the power supply and control module, a slide assembly slidably inserted into the guide and pivot main body, and a lamp module mounted to one end of the slide assembly. | 2009-10-08 |
20090251892 | Lighting Apparatus - A lighting apparatus provided in the form of a bulb for use in a solar lantern or other electrical device. The lighting apparatus includes a hollow light guide with a light reflective layer on the inside. A first and second light source such as an array of LEDs, LECs, etc. is positioned at opposite ends of the hollow light guide such the light emitted by the light sources is directed through the light guide between the inner and outer sidewalls thereof. The first and second light source are connected to a power source such as a battery. | 2009-10-08 |
20090251893 | LED flashlight with mechanical switch operable to adjust light brightness - An LED flashlight includes a conductive lamp-shielding barrel, a substrate, a conductive battery housing, a circuit board, and at least two conductive contact bars. When the lamp-shielding barrel is rotated relative to the battery housing to move the substrate toward the circuit board to a first position, a positive contact of the substrate is in electrical contact with one of the conductive contact bars so that the lamp unit emits a light of a first brightness. When the lamp-shielding barrel is further rotated relative to the battery housing to move the substrate toward the circuit board to a second position, the positive contact of the substrate is in electrical contact with both of the conductive contact bars so that the lamp unit emits a light of a second brightness that is different from the first brightness. | 2009-10-08 |
20090251894 | LED flexible rod light device and process for manufacturing same - LED flexible rod light device and process for manufacturing the same are disclosed. The LED flexible rod light device is flexible and comprises a positive wire and a negative wire being parallel to each other; a plurality of bare LED chips each connected to the positive wire and the negative wire via leads; and a packagine material for enclosing the positive wire, the negative wire, and the bare LED chips. | 2009-10-08 |
20090251895 | Lighting System - A lighting system comprising an electric lamp ( | 2009-10-08 |
20090251896 | Electric Lamp Adapter and Reflector - A means of detachably coupling an adapter about the substantially male portion of a lamp base, and between a lamp body and a lamp socket body is set forth. The adapter is disc-like with a hole through which the male portion of a lamp base such as, but not limited to an Edison, GU24, or G24d type lamp base, is inserted into a related socket body. The hole in the adapter member is predetermined to be substantially congruent with the outer surface of the substantially male portion of the lamp base at a point adjacent to its junction with the lamp body. This allows the adapter member to substantially contact the outer surface of the substantially male portion of the lamp base while also being sandwiched between the top surface of the lamp body and the bottom surface of the socket body when the substantially male portion of the lamp base is fully inserted into the socket body. One of several modifications shows various reflectors being attached to the adapter. Another modification shows various lens caps detachably coupled to the reflector. | 2009-10-08 |
20090251897 | LED LIGHT SOURCE DEVICE - An LED light source device using light from luminescent elements at a high level of uniformity and efficiency, and to conduct irradiation with a high level of design freedom an LED light source device is equipped with luminescent elements and a translucent light-guiding member. The translucent light-guiding member has a central convex lens with a first cylindrical light-guiding part formed on the outer periphery of the central convex lens and a second cylindrical light-guiding part formed on the outer periphery of the first cylindrical light-guiding part, such that an air layer is formed between the outer peripheral surface of the first cylindrical light-guiding part and the inner peripheral surface of the second cylindrical light-guiding part, the outer peripheral surface of the first cylindrical light-guiding part and the outer peripheral surface of the second cylindrical light-guiding part being rotated quadratic surfaces with the same focal point. | 2009-10-08 |
20090251898 | LED Light Fixture - An LED floodlight fixture includes (1) a housing that has (a) at least one end-portion and (b) a single-piece extrusion including (i) a base having an LED-adjacent surface and an opposite surface and (ii) a heat-dissipating section having heat-dissipating surfaces extending from the opposite surface, and (2) an LED arrangement mounted to the LED-adjacent surface in non-water/air-tight condition with respect to the housing. The housing preferably forms at least one venting gap to provide cool-air ingress to and along the heat-dissipating surfaces by upward flow of heated air therefrom. Additionally and/or alternatively, the base of the single-piece extrusion has one or more venting apertures to provide cool-air ingress for such purpose. One aspect of the invention involves the heat-dissipating section of the extrusion including a closed extruded wireway therealong enclosing wires extending to/from electrical component(s). | 2009-10-08 |
20090251899 | Flexible Spotlight - A flexible floodlight assembly adapted to be used with a standard floodlight or light socket assembly may include a female socket member adapted to accept a floodlight bulb, a flexible intermediate section coupled to the female socket member, and a male socket member coupled to the flexible intermediate section. The flexible intermediate section may be deformable to direct floodlight to multiple positions. The flexible intermediate section may include a bellows housing member, and the flexible intermediate section may include an insulating member. The flexible intermediate section may include a wire member, and the configurable floodlight assembly may include a cover member to cover a portion of the floodlight bulb. The female socket member may include internal threads to cooperate with external threads of the floodlight bulb, and the male socket member may include external threads to cooperate with internal threads of the standard floodlight or light socket assembly. | 2009-10-08 |
20090251900 | LAMP AND DEVICE FOR PREVENTING THE DISPERSION OF LIGHT IN UNDESIRED DIRETIONS - A lamp having a base housing with a member for connection to a lamp-holder, and a light source extending generally axially from the housing. The lamp includes a device connected to the housing suitable for screening the dispersion of the light radiation in undesired directions. Such device preferably comprises a hood with a generally cylindrical grid arranged coaxially to the housing and enclosing the light source. Desireably, the grid is formed from a plurality of substantially frusto-conical rings axially superimposed, joined and regularly spaced by a plurality of axial ribs. | 2009-10-08 |
20090251901 | LIGHT EMITTING DIODE LAMP - An LED lamp ( | 2009-10-08 |
20090251902 | LIGHT EMITTING DIODE - Disclosed is a light emitting diode (LED). The LED includes a light emitting chip, a reflector formed with an annular groove in an inner surface thereof and surrounding the light emitting chip, and a lens engaged with the groove of the reflector. An inner diameter of a lens insertion portion of the groove is smaller than an outer diameter of the lens, so that the lens can be engaged with the groove through elastic deformation. Since the separately manufactured lens is engaged with and coupled into the groove of the reflector, the lens can be fixed through a simple process and aligned without an error. Since the lens is engaged with the groove of the reflector, the lens is prevented from being easily separated. In addition, since there is no need for the use of an adhesive, it is possible to prevent degradation of the reliability of the LED. | 2009-10-08 |
20090251903 | Lighting Fixture Iris Positioning Apparatus - A positioning apparatus for theatrical lighting equipment. In particular, an apparatus that allows an operator to control the direction of the light beam from a lighting fixture and simultaneously control an iris attached to the lighting fixture. | 2009-10-08 |
20090251904 | Lamp Assembly - A lamp assembly includes a light module and a stem. The light module includes a reflector, a first fixing plate, a second fixing plated mounted on the first fixing plate and having a plurality of fixing pieces pivotally connected thereon for fixing the reflector between the first fixing plate and the second fixing plate, and a lamp. By rotating the fixing pieces, the reflector is easy to replace. The stem includes a plurality of connecting tubes and connecting assemblies. Each connecting assembly has a male joint with an L-shape projecting and a female joint with an L-shape slot. The male joint is fitted into the connecting tube, and the female joint is fitted into another connecting tube. By engaging the L-shape projection with the L-shape slot, the two connecting tubes can be connected without twisting a wire inside the stem. | 2009-10-08 |
20090251905 | Retaining Bracket for Spotlights - A retaining bracket for spotlights is provided. The retaining bracket comprising bracket bearings which are arranged at the ends of the retaining bracket, for accommodating the spotlight housing and a central supporting bearing for connecting the retaining bracket to a supporting apparatus The distance of the bracket bearings from one another is capable of being adjusted in self-centering fashion. | 2009-10-08 |
20090251906 | OUTDOOR LED LAMP ASSEMBLY - An outdoor LED lamp assembly includes a receiving member and an LED lamp mounted on the receiving member. The LED lamp includes a heat sink and a plurality of LED modules mounted on the heat sink. The receiving member includes a bottom plate. A plurality of screw assemblies extends through the bottom plate to engage with the receiving member to mount the bottom plate on the receiving member. Each of the screw assemblies includes a screw and a circlip snapping the screw. The screw includes a head and a thread portion extending from the head. The threaded portion threadedly engages in the receiving member. The bottom plate of the receiving member is sandwiched between the head and the circlip. A wire interconnects the receiving member and the bottom plate. The screws are remained on the bottom plate when the screws are loosened from the receiving member. | 2009-10-08 |
20090251907 | Reflector lamp filter adapter - A reflector lamp filter adapter according to the present invention comprises a generally U-shaped resilient bracket having a base and 2 parallel sides wherein the base and sides have slots adapted to receive and hold the rim of a reflector lamp emitting visible light, IR (infrared heat) and UV (ultraviolet) energy; a heat-reflecting, light-transmitting hot mirror; a heat-absorbing filter; and in one preferred embodiment, a UV-blocking filter. The U-shaped bracket has a lock engaging the distal edges of the sides of the U, securely locking the lamp reflector and filters therein. The bracket includes convection cooling apertures so the final light beam is only visible light, with no ultraviolet of infrared energy. | 2009-10-08 |
20090251908 | INTEGRATED HEADLIGHT ASSEMBLY FOR TACTICAL VEHICLES - An integrated front lighting unit for a tactical vehicle, which includes a housing, multiple lights and a single connector for connection to a vehicle electrical system. All the parts are located in or on the housing which may include a front, a top, a bottom, two sides, a back and mounting tabs or another mounting arrangement. There is wiring for each light in the unit having a cable and all cables are attached to the single connector. The multiple lights in the unit may include a blackout driving light, a blackout turn signal, a headlight, a turn signal and a side marker truck light. The lights may use LEDs as light sources. | 2009-10-08 |
20090251909 | TAIL LIGHT - A tail light for an automobile includes a plurality of first illuminating elements and a plurality of second illuminating elements. The first illuminating elements are arranged to form a logo pattern of the automobile, and each of the first and second illuminating elements are configured for providing an adjustable illuminating brightness. The tail light is capable of selectively operating between a braking state and a non-braking state. In the braking state, the illuminating brightness of the first illuminating elements is greater than that of the second illuminating elements. In the non-braking state, the illuminating brightness of the first illuminating elements is less than that of the second illuminating elements. | 2009-10-08 |
20090251910 | HEAD UNIT BACKGROUND ILLUMINATION - A front panel display assembly may have an integrated decorative film having first and second sides. The first side may have a half-mirrored surface that allows the passage of light in only a single direction and the second side may have a non-uniform diffusion pattern that extends across it. The non-uniform diffusion pattern may regulate and diffuse light irradiated onto the second side to pass through the integrated decorative film and to be regulated and emitted uniformly across the front panel display assembly. | 2009-10-08 |
20090251911 | In-vehicle illumination device - In an in-vehicle illumination device including: a room lamp section provided with a first light source section, and a light guide plate that guides a light of the first light source section from an end surface thereof and emits the light from a front surface thereof; a first switch for use by the room lamp section; and a vanity mirror section provided with a mirror, when the first light source section is turned on through operation of the first switch, a mode change is made to a room lamp illumination mode in which a first illumination light comes from the room lamp section, and also when the vanity mirror section is in use, the first light source section is turned on, and a mode change is made to a vanity mirror illumination mode in which a second illumination light comes from the room lamp section. The resulting in-vehicle illumination device can be excellent in practicality with the smaller size, and can achieve improvement in terms of design. | 2009-10-08 |
20090251912 | In-vehicle illuminination device - In an in-vehicle illumination device including: a room lamp section provided with a first light source section and a light guide plate, a map lamp section provided with a second light source section and a lens, a first switch for use by the room lamp section, and a second switch for use by the map lamp section, a light source configuring the first light source section and a light source configuring the second light source section are mounted on any same heat sink member. In the resulting in-vehicle illumination device, measures are taken against heat generation, and the reduction of size and weight is achieved. The design quality of the illumination device can be also improved. | 2009-10-08 |
20090251913 | Plastic Glass Interior Mirror With Illumination - The invention is related to a rear view mirror formed by a plastic glass structure and mirror housing. The plastic glass allows smooth edges and a bezel free appearance of the mirror. The plastic glass allows in addition to shine through the mirror body to create different types of illumination in the passenger's cabin. | 2009-10-08 |
20090251914 | LIGHT MODULE FOR A VEHICULAR EXTERIOR MIRROR ASSEMBLY - A light module for an exterior rearview mirror assembly adapted for attachment to the side of a vehicle comprises an enclosure and a light-transmitting cover. At least one light-emitting diode is disposed within the enclosure cavity. When the exterior rearview mirror assembly is mounted at the side of the vehicle and when the light module is disposed in the exterior rearview mirror assembly and when the at least one light emitting diode is electrically powered, light radiated by the at least one light emitting diode radiates through the light-transmitting cover and may radiate away from the side of the vehicle to which the exterior mirror assembly is attached and/or may illuminate the ground in the vicinity of a door of the equipped vehicle. The light module is substantially moisture impervious and is removable from the exterior rearview mirror assembly. | 2009-10-08 |
20090251915 | THREE-MODE INTEGRATED HEADLAMP - A high intensity discharge lamp automotive headlamp system is provided for three different lighting functions. The headlamp system is a single unit that provides for low beam, high beam, and daylight running light (DRL) functions. Two optical components are used to easily and effectively switch between the different modes of operation. The first optical component is a shutter that selectively blocks a portion of the light beam output. Secondly, either a single lens or lens portions can be moved either within the light beam path or into the light beam path to alter the divergence. | 2009-10-08 |
20090251916 | LED LIGHTING UNIT AND VEHICLE LAMP - An LED lighting unit, and a vehicle lamp using the LED lighting unit can have a favorable light distribution that can be perceived as a single, integrated lighting surface. The LED lighting unit can include a plurality of base boards, a plurality of LED light sources located on each mounting surface of the base boards, a plurality of parabolic reflectors and at least one V-shaped reflector configured to locate between the adjacent parabolic reflectors. Because each of the LED light sources is located substantially at each focus of the parabolic reflectors and the at least one V-shaped reflector, light emitted from the LED light sources can be illuminated as a single, integrated light via their reflectors. Thus, a vehicle lamp using the LED lighting unit can have a favorable light distribution that can be perceived as a single, integrated lighting surface and which can be used for a headlight, a tail lamp, etc. | 2009-10-08 |
20090251917 | ILLUMINATION DEVICE - The present invention is generally directed to illumination devices, and particularly directed to illumination devices which utilize thin light sources or edge-lit sources in combination with a light turning plate. The illumination devices may be used in a broad range of applications, and are particularly suited for the interior lighting of vehicles. | 2009-10-08 |
20090251918 | LIGHTING DEVICE, AUTOMOTIVE HEADLIGHTS AND METHOD FOR PRODUCING A LIGHTING DEVICE - Disclosed is a lighting device comprising at least one LED and at least one optical element, wherein the LED and the optical element are aligned with each other by means of at least one dowel pin. A method of making such a lighting device is also specified. The described lighting device is particularly well suited for use in a vehicle headlight. | 2009-10-08 |
20090251919 | LED lighting for glass tiles - Devices, apparatus, systems, and methods of installing LED (light emitting diodes) for glass tiles and glass blocks. The LEDs can be housed in flexible strips having flexible bendable transparent housing sleeves with ends that can interconnect by male and female ends to one another with various types of interconnectors. Each separate sleeve can house up to 33 LEDs in a transparent plastic sleeve. A transparent connector sleeve can be slid over the interconnected ends and heat shrunk in place. The glass tiles can be laid out to uniform joints spacings between the glass tiles of approximately 3/16 of an inch. The LED strips can be placed on a surface layer of transparent grout that has been laid in the joint spacing, followed by a top layer of transparent grout. The transparent grout can be removable grout and include clear Silicon. The LED strips can have peel and stick back layers with adhesive backing that allows mounting to the lower surface. The LED strips can be placed with glass tiles, and other types of tiles such as but not limited to ceramic tiles, stone tiles and the like, as well as with glass blocks. Splitter(s) can be used to run parallel runs of LED strips at different spaced apart locations. | 2009-10-08 |
20090251920 | Scuff plate - A scuff plate has a first light guide element having a groove of predetermined shape formed in an underside of the element when viewed from below, a first light source that guides light to the first light guide element, light emission unit that is disposed below the first light guide element and that upwardly emits light differing in color from the first light source, and a half mirror layer interposed between the first light guide element and the light emission unit. Light from the first light source is guided to the first light guide element, and the guided light undergoes reflective diffusion at the groove (a character section). As a consequence, a desired character, or the like, is luminously displayed. In the meantime, light generated by the light emission unit exits through the first light guide element, whereupon an area (a background area) other than the groove (the character section) is illuminated in color that differs from the color of light from the first light source. | 2009-10-08 |
20090251921 | System for improvement of the perceived FOS homogeneity by suppressing hotspots in a module design with a short LED to active area distance - The present invention discloses a system for displaying images, comprising: a light source; a panel including an active area and a peripheral area; a light guide being located at one side of the light source and under the panel, the light guide having a first side facing the panel and a second side opposite to the first side; and a plurality of optical foils, each foil disposed on the first or second side of the light guide, wherein at least one of the optical foil has a hotspot-reducing area in the peripheral area in order to reduce or eliminate a hotspot in front of the light source, wherein the hotspot-reducing area is a cut-out area, a covered area, or combinations thereof. | 2009-10-08 |
20090251922 | BACKLIGHT DEVICE AND DISPLAY DEVICE USING THE SAME - In a backlight device, an upper-side region and a lower-side region serving as placement regions in which light-emitting diodes are respectively placed are provided on an upper side and a lower side of a light guide plate. Further, in the upper-side region and the lower-side region, a plurality of light-emitting diodes are distributed such that their light amounts fall within predetermined ranges. | 2009-10-08 |
20090251923 | WATER-RESISTANT AND REPLACEABLE LED LAMPS - Disclosed is waterproof lamp assembly that allows easy assembly and disassembly. LED elements can be quickly and easily replaced if an LED element is defective or burns out. Extended connectors are used that extend beyond an overmolded lamp holder so that the lamp holder can be easily molded without covering the connectors with molding material. The connectors are made from a malleable metal so that the connectors can be folded into a central opening in the lamp holder. | 2009-10-08 |
20090251924 | Power supplying unit - A power supplying apparatus includes a conversion device to convert direct current (DC) power from a battery set into alternating current (AC) power. A current transformer arrangement may generate a DC charging signal based on the AC power and provide the DC charging signal to the battery set. The current transformer may include a plurality of current transformers. | 2009-10-08 |
20090251925 | CURRENT RESONANT DC-DC CONVERTER OF MULTI-OUTPUT TYPE - A current resonant DC-DC converter of multi-output type is provided which comprises an output-regulatory MOS-FET | 2009-10-08 |
20090251926 | Converter and driving method thereof - A converter is disclosed for using at least one switch to convert an input signal to a square wave signal, and using the square wave signal to generate an output voltage. The converter converts the square wave signal by a switching operation of a switch and generates the output voltage, and includes a switch controller for controlling the switching operation. The switch controller generates a first signal VCT having a first period that varies according to an output voltage, controls the switching operation of the switch by using the first signal, detects the output voltage, a first current Ids | 2009-10-08 |
20090251927 | Phase Shifted DC-DC Converter with Improved Efficiency at Light Load - A device including a full bridge, a half bridge, a first inductor, and a second inductor. The full bridge has a first pair of transistors being activated when a load applied to the device is above a predetermined level and deactivated when the load applied to the device is below the predetermined level, and a second pair of transistors being continuously activated. The half bridge has a third pair of transistors that are activated when the load applied to the device is below the predetermined level and deactivated when the load applied to the device is above the predetermined level. The first and second inductors are connected between the outputs of the full and half bridges are adapted to cooperate with each other to provide a zero voltage switching of the device at a light load. The first and third pairs of transistors are activated at different times. | 2009-10-08 |
20090251928 | Switching power supply circuit - A switching power supply circuit includes a direct current (DC) power supply input terminal, a first transformer including a first primary winding, a second transformer, and a pulse generating circuit, and a startup circuit. The pulse generating circuit includes first and second first switching units connected in series and two voltage division resistors connected in series between the DC power supply input terminal and ground, and two capacitors connected in parallel with one of the two voltage division resistors. The second transformer includes a second primary winding connected between control terminal and second conducting terminal of the first switching unit, a second secondary winding; and an assistant winding connected between the control terminal of the second switching unit and ground. The second conducting terminal of the first switching unit is grounded via the second secondary winding, the first primary winding and a capacitor in series. | 2009-10-08 |
20090251929 | Convertor and Driving Method Thereof - A converter and a driving method thereof are provided. The converter includes first and second switches, and generates a square wave signal according to operations of the first and second switches. The converter includes a first capacitor and a primary coil, and resonates a driving voltage by using a driving voltage with the first capacitor and the primary coil so as to generate a driving current. The converter includes a secondary coil that forms the primary coil and the transformer, and generates output power by rectifying a current and a voltage generated in the secondary coil. In addition, the converter detects the phase of the driving current, and increases switching frequencies of the first and second switches if a phase difference of the phase of the driving current and that of the driving voltage is smaller than a predetermined value. | 2009-10-08 |
20090251930 | METHOD AND APPARATUS FOR REGULATING AN OUTPUT CURRENT FROM A POWER CONVERTER - Techniques are disclosed to regulate an output current through a load coupled to a power converter using a current source coupled to the load. For instance, one power converter according to the teachings of the present invention includes an energy transfer element coupled between an input of the power converter and an output of the power converter. A power converter controller is coupled to the energy transfer element to control a transfer of energy from the input of the power converter to the output of the power converter. A load is to be coupled to the output of the power converter. A current source is to be coupled to the load. The current source regulates the current flowing through the load to a threshold current value. The current source is coupled to sense a current through the load. A switch having a first and second end is also included. The first end is to be coupled to the load and the second end is coupled to the current source. The switch is coupled to be switched on and off at a duty cycle to control an average current through the load. The current through the load is substantially equal to a current through the switch and the current source. | 2009-10-08 |
20090251931 | METHOD AND APPARATUS FOR CONDITIONAL RESPONSE TO A FAULT CONDITION IN A SWITCHING POWER SUPPLY - Techniques are disclosed to regulate an output of a power converter. One example power converter controller circuit includes a line sense input to be coupled to receive a signal representative of an input voltage of a power converter. A feedback input to be coupled to receive a feedback signal representative of an output of the power converter is also included. A drive signal generator is also included to generate a drive signal coupled to control switching of a switch to provide a regulated output parameter at the output of the power converter in response to the feedback signal. The drive signal generator is coupled to receive a plurality of inputs including the line sense input and the feedback input. The drive signal generator is coupled to latch the power converter into an off state in response to a detection of a fault condition in the power converter as detected by the plurality of inputs if the power converter input voltage is above a first threshold level. The drive signal generator to be unresponsive to the signal representative of the power converter input voltage while the controller is regulating the output parameter at the output of the power converter. | 2009-10-08 |
20090251932 | Low Harmonic Rectifier Circuit - A method, device, and plurality of circuit enhancements for a rectifier system that enable reduction in lower order and higher order harmonics, without substantially reducing the rectifier's direct current output voltage. The rectifier system comprises a phase shifting primary transformer subsystem and a multi-pulse rectifier. At least one series impedance path is coupled to one of three input terminals/leads of the transformer subsystem and conducts one phase of three phase currents from a power supply to the transformer subsystem. The series impedance path provides low impedance to the 1 | 2009-10-08 |