| 19th week of 2009 patent applcation highlights part 18 |
| Patent application number | Title | Published |
|---|
| 20090115292 | STRAIN AMPLIFICATION DEVICES AND METHODS - A multi-layer strain-amplification device includes at least one first amplifying layer unit and a second amplifying layer unit positioned about the at least one first amplifying layer unit. A strain of the at least one first amplifying layer unit is amplified by the second amplifying layer unit. | 2009-05-07 |
| 20090115293 | Stacked Mechanical Nanogenerators - An electric power generator includes a first conductive layer, a plurality of semiconducting piezoelectric nanostructures, a second conductive layer and a plurality of conductive nanostructures. The first conductive layer has a first surface from which the semiconducting piezoelectric nanostructures extend. The second conductive layer has a second surface and is parallel to the first conductive layer so that the second surface faces the first surface of the first conductive layer. The conductive nanostructures depend downwardly therefrom. The second conductive layer is spaced apart from the first conductive layer at a distance so that when a force is applied, the semiconducting piezoelectric nanostructures engage the conductive nanostructures so that the piezoelectric nanostructures bend, thereby generating a potential difference across the at semiconducting piezoelectric nanostructures and also thereby forming a Schottky barrier between the semiconducting piezoelectric nanostructures and the conductive nanostructures. | 2009-05-07 |
| 20090115294 | PIEZOELECTRIC RESONATOR ELEMENT, PIEZOELECTRIC RESONATOR, AND ACCELERATION SENSOR - A piezoelectric resonator element includes: a resonating arm extending in a first direction and cantilever-supported; a base portion cantilever-supporting the resonating arm; and an excitation electrode allowing the resonating arm to perform flexural vibration in a second direction that is orthogonal to the first direction. In the piezoelectric resonator element, the resonating arm includes an adjusting part adjusting rigidity with respect to a bend in a third direction that is orthogonal to the first and second directions. | 2009-05-07 |
| 20090115295 | TURBOJET HAVING AN ELECTRICITY GENERATOR ARRANGED IN ITS FAN - The turbojet comprises a high pressure spool and a low pressure spool driving a fan. In order to produce electricity, it further includes an electricity generator arranged in the fan and taking power therefrom. The generator comprises a rotor incorporated in the fan and a stator incorporated in the fan casing. This disposition for the electricity generator avoids problems of engine operability at low speed and enables mechanical power to be converted into electrical power with high efficiency. In addition, installation and maintenance of the electricity generator are facilitated by the generator being implanted in the fan. | 2009-05-07 |
| 20090115296 | Electrical Junction Box - An electrical junction box comprises a box body provided with a first groove; an attachment bracket provided with a second groove; and a lower cover provided attached to the bottom surface of the box body. When the attachment bracket is properly mounted on the box body, the first and second grooves are arranged to form a single continuous third groove. A protrusion is provided on the lower cover and fits to the third groove. | 2009-05-07 |
| 20090115297 | Device for installing and removing high insertion force modules - The present invention provides for electronic module insertion and removal such as when high insertion/extraction forces are exerted in small spaces. To secure or unsecure the module a frame is mounted to a cabinet housing the high insertion module. The frame includes a lever assembly that fixedly rotates about an axle attached at each end to a hub. The hub is allowed to rotate to one or more fixed angular positions that move the lever proximity relative to the front surface of the high insertion module. Applying a pressure to the lever rotates the lever until the module is either secured or unsecured from its cabinet. | 2009-05-07 |
| 20090115298 | Entertainment cabinet with bi-fold storage doors - An entertainment cabinet ( | 2009-05-07 |
| 20090115299 | Merchandise Display - A merchandise display has a frame assembly supporting a plurality of drawers. Each drawer is slidably supported in the frame assembly between a closed position and an open position. The drawer defines a compartment adapted to contain packages of the product. The drawer supports a sample product visible to a consumer wherein the sample product corresponds to the packages of the product. The sample product is adapted to be grasped by the consumer to place the drawer in the open position. A first drawer defines a first compartment and a second drawer defines a second compartment. The second drawer has a portion being spaced a predetermined distance from the first drawer. The predetermined distance is sized such that the second compartment is visible to the consumer and requiring the second drawer to be in the open position for a hand of the consumer to reach into the second compartment. | 2009-05-07 |
| 20090115300 | SLIDE ASSEMBLY HAVING AN AUTOMATIC RETRACTABLE DEVICE - A slide assembly having an automatic retractable device includes a sliding member, a fixing base, a retainer, a guiding member provided on a sliding rail, and a stationary rail. The sliding rail is free to move with respect to the stationary rail. The sliding member is slidably disposed in the stationary rail. The fixing base is secured at the end of the stationary rail. The retainer is disposed in the stationary rail. The sliding member is linked to a first resilient member, which urges the sliding member back to the fixing base. An engaging plate is provided on the sliding member. The engaging plate has a first end and a second end. The first end of the engaging plate is pivotally connected to the sliding member. An engaging rod is provided on the second end of the engaging plate. | 2009-05-07 |
| 20090115301 | STORAGE UNIT - A storage unit for use in offices and the like to store items, for example on shelves. There is a fixed part defining an internal space and at least one sliding door that can slide horizontally between open and closed positions. The door has a first section and a second section, of which the first section is substantially upright and the second section extends from an upper portion of the first section at least partially across the fixed part. This arrangement acts as a disincentive to place items on top of the storage unit. The door and parts of the fixed part may be made of perforated sheet metal. An acoustically absorbent material (e.g. a fabric) may be secured to an inwardly facing surface of any part formed from perforated sheet metal. The storage unit can therefore also act as an absorber of unwanted sound. | 2009-05-07 |
| 20090115302 | Support arrangement and refrigerator provided therewith - The invention relates to a refrigerator that includes at least one vertical support that has a vertical guiding groove with a recess and a plurality of vertically staggered steps provided therein, and a horizontal support provided with a peg engaged into the recess of the guiding groove. In the interlocked position of the horizontal support, the peg rests on one of the steps and presses against a first wall of the vertical support from which the steps protrude. A contact surface of the horizontal support presses against a second wall of the vertical support, the second wall being arranged opposite to the first wall. The contact surface and the steps are staggered in the direction of the width of the walls, the steps being located in a lower position in the recess than the contact surface. | 2009-05-07 |
| 20090115303 | Electric lamp having an outer bulb - A lamp elongated bulb ( | 2009-05-07 |
| 20090115304 | BULB WITH ADJUSTABLE RADIATION ANGLE - Provided is a bulb with an adjustable radiation angle, comprising a bulb base, a bulb body and a soft pipe; wherein the bulb base is connected to the bulb body via the soft pipe; and the soft pipe is capable of stretching and bending, so as to change a position of the bulb body and a radiation angle thereof. The invention makes it convenient to adjust a radiation angle of the bulb, and improves flexibility thereof. | 2009-05-07 |
| 20090115305 | TRIODES USING NANOFABRIC ARTICLES AND METHODS OF MAKING THE SAME - Vacuum microelectronic devices with carbon nanotube films, layers, ribbons and fabrics are provided. The present invention discloses microelectronic vacuum devices including triode structures that include three-terminals (an emitter, a grid and an anode), and also higher-order devices such as tetrodes and pentodes, all of which use carbon nanotubes to form various components of the devices. In certain embodiments, patterned portions of nanotube fabric may be used as grid/gate components, conductive traces, etc. Nanotube fabrics may be suspended or conformally disposed. In certain embodiments, methods for stiffening a nanotube fabric layer are used. Various methods for applying, selectively removing (e.g. etching), suspending, and stiffening vertically- and horizontally-disposed nanotube fabrics are disclosed, as are CMOS-compatible fabrication methods. In certain embodiments, nanotube fabric triodes provide high-speed, small-scale, low-power devices that can be employed in radiation-intensive applications. | 2009-05-07 |
| 20090115306 | Field emission electron source having carbon nanotubes and method for manufacturing the same - A field emission electron source having carbon nanotubes includes a CNT string and a conductive base. The CNT string has an end portion and a broken end portion, the end portion is contacted with and electrically connected to the surface of the conductive base. The CNTs at the broken end portion form a tooth-shape structure, wherein some CNTs protruding and higher than the adjacent CNTs. Each protruding CNT functions as an electron emitter. Further, a method for manufacturing a field emission electron source is provided. The field emission efficiency of the field emission electron source is high. | 2009-05-07 |
| 20090115307 | COMPOSITION FOR ARCING AND CHARGING PREVENTION FILM AND FIELD EMISSION DEVICE INCLUDING ARCING AND CHARGING PREVENTION FILM FORMED FROM THE SAME - Compositions for forming arcing and charging prevention films, arcing and charging prevention films formed from the compositions, and field emission devices including the arcing and charging prevention films are provided. The composition includes from about 50 to about 90 wt % of an inorganic oxide, from about 5 to about 30 wt % of an organic vehicle, and from about 1 to about 45 wt % of glass frit. The arcing and charging prevention films have excellent adhesive force and are stable even in vibration or vacuum conditions. Therefore, field emission devices including the arcing and charging prevention films have high uniformity and stability. | 2009-05-07 |
| 20090115308 | External electrode fluorescent lamp having conductive layers and backlight module utilizing same - An exemplary external electrode fluorescent lamp includes a fluorescent tube having two electrodes fixed at two ends thereof, and two inner caps respectively holding the electrodes. Each inner cap includes an electrode receiving portion configured for receiving the electrode, a conductive layer provided at inner surfaces of the electrode receiving portion, a lead receiving portion integrally formed with the electrode receiving portion, and a conductive lead received in the lead receiving portion. The conductive layer contacts the conductive layer. A backlight module employing the external electrode fluorescent lamp is also provided. | 2009-05-07 |
| 20090115309 | Pixel element for field emission display - A pixel element for field emission display includes a sealed container having a light permeable portion, an anode, a cathode, a phosphor layer formed on an end surface of the anode, and a CNT string electrically connected to and in contact with the cathode with an emission portion of the CNT string suspending. The phosphor layer is opposite to the light permeable portion, and the emission portion is corresponding to the phosphor layer. Some of CNT bundles in the CNT string are taller than and project over the adjacent CNT bundles, and each of projecting CNT bundles functions as an electron emitter. The anode, the cathode, the phosphor layer and the CNT string are enclosed in the sealed container. The luminance of the pixel element is enhanced at a relatively low voltage. | 2009-05-07 |
| 20090115310 | COATING LIQUID FOR HOLE INJECTION AND TRANSPORT LAYER, PRODUCTION METHOD OF HOLE INJECTION AND TRANSPORT LAYER, ORGANIC ELECTROLUMINESCENT ELEMENT, AND PRODUCTION METHOD THEREOF - A coating liquid for hole injection and transport layers improves the injecting property of the coating liquid when it is injected by an injection device and light-emitting uniformity of an organic electroluminescent element, reduces leak current, and improves light-emitting efficiency. The coating liquid for hole injection and transport layers is a coating liquid for hole injection and transport layers in an organic electroluminescent element, wherein the coating liquid for hole injection and transport layers contains poly(3,4-ethylenedioxythiophene), polystyrene sulfonate, and (poly)alkylene glycol alkyl ether. | 2009-05-07 |
| 20090115311 | Fabrication of a Semiconductor Nanoparticle Embedded Insulating Film Electroluminescence Device - A method is provided for fabricating a semiconductor nanoparticle embedded Si insulating film for electroluminescence (EL) applications. The method provides a bottom electrode, and deposits a semiconductor nanoparticle embedded Si insulating film, including an element selected from a group consisting of N and C, overlying the bottom electrode. After annealing, a semiconductor nanoparticle embedded Si insulating film is formed having an extinction coefficient (k) in a range of 0.01-1.0, as measured at about 632 nanometers (nm), and a current density (J) of greater than 1 Ampere per square centimeter (A/cm | 2009-05-07 |
| 20090115312 | ELECTRONIC DEVICE HAVING LUMINESCENCE SURFACE AND MANUFACTURING METHOD OF THE HOUSING FOR THE SAME - A manufacturing method of a housing having a luminescence surface for an electronic device is provided. The method includes the steps of providing an electroluminescent film; providing a molding device including an upper mold and a lower mold; conformally attaching the electroluminescent film to the upper mold and forming a predetermined space between the electroluminescent film and the lower mold; injecting a plastic material into the predetermined space by an in-mold decoration (IMD) injection molding process; and solidifying the plastic material to form the housing, such that the electroluminescent film is on a surface of the housing. The present invention also provides an electronic device including a body; a housing covering the body; and an electroluminescent film on a surface of the housing formed by an IMD injection molding process. | 2009-05-07 |
| 20090115313 | LIGHT EMITTING DEVICE AND FABRICATING METHOD THEREOF - A light emitting device and a fabricating method thereof are described. The light emitting device includes a substrate, a light emitting chip, a tubular structure, and a fluorescent conversion layer. The tubular structure is formed on a surface of the substrate. The light emitting chip is disposed on the surface of the substrate and is surrounded by the tubular structure. The fluorescent conversion layer is disposed in the tubular structure and covers the light emitting chip. A ratio of a maximal vertical thickness and a maximal horizontal thickness of the fluorescent conversion layer at the light emitting chip is between 0.1 and 10. A distance for the light ray to pass through the fluorescent conversion layer is controlled by using the tubular structure, so as to solve a problem of the conventional art that fluorescent powder coating package technique results in non-uniform color temperature of the emitted light. | 2009-05-07 |
| 20090115314 | BORON NITRIDE NANOTUBE PASTE COMPOSITION, ELECTRON EMISSION SOURCE INCLUDING THE SAME, ELECTRON EMISSION DEVICE INCLUDING THE ELECTRON EMISSION SOURCE, AND BACKLIGHT UNIT AND ELECTRON EMISSION DISPLAY DEVICE INCLUDING THE ELECTRON EMISSION DEVICE - Boron nitride nanotube paste compositions, electron emission sources including the same, electron emission devices including the same and backlight units and electron emission display devices including the same are provided. A boron nitride nanotube paste composition includes about 100 parts by weight boron nitride nanotubes, from about 500 to about 2000 parts by weight glass frit, from about 1000 to about 2000 parts by weight filler, from about 2000 to about 4000 parts by weight organic solvent, and from about 4000 to about 6000 parts by weight polymer binder. Electron emission devices including the boron nitride nanotube electron emission sources have longer lifespan and improved uniformity among pixels. | 2009-05-07 |
| 20090115315 | MULTI-COLOR DISPLAY APPARATUS - Provided is an organic light-emitting device having little apparent deterioration of a durable luminance. The organic light-emitting device includes a hole transport layer and a light-emitting layer which are located in a predetermined order between a reflection electrode for reflecting light and an electrode for transmitting light, the hole transport layer being in contact with the reflection electrode and made of an organic compound, and the light-emitting layer being made of an organic compound, wherein an optical film thickness L of the hole transport layer is set in a range of 0.25λ×(2 | 2009-05-07 |
| 20090115316 | ORGANIC ELECTROLUMINESCENT DEVICE HAVING AN AZATRIPHENYLENE DERIVATIVE - Azatriphenylene derivatives and their use in the electron-transporting layer of an electroluminescent device that comprises an anode, a spaced-apart cathode, and at least one electron-transporting layer disposed between the spaced-apart anode and cathode. Such EL devices provide lower drive voltage, improved power efficiency, and longer operational lifetime. | 2009-05-07 |
| 20090115317 | ORGANIC ELECTROLUMINESCENCE DEVICE AND METHOD FOR FABRICATING THE SAME - An organic electroluminescent (EL) device is provided that may include a first electrode, an organic layer and a second electrode arranged in a light-emitting region of a substrate. The device may also include a cap for sealing the light-emitting region of the substrate. The cap may have a caved surface with a minimum depth of 10 μm and a maximum depth of 10% of a total thickness of the cap. | 2009-05-07 |
| 20090115318 | ORGANIC ELECTRONIC DEVICE STRUCTURES AND FABRICATION METHODS - An organic electronic device structure, the structure comprising: a substrate; a base layer supported by said substrate and defining the base of a well for solvent-based deposition of organic electronic material; one or more spacer layers formed over said base layer; a bank layer formed over said spacer layer to define a side of said well; and wherein an edge of said well adjacent said base layer is undercut to define a shelf over said base layer, said shelf defining a recess to receive said organic electronic material. | 2009-05-07 |
| 20090115319 | White organic light emitting device - Provided is a white organic light emitting device (OLED). The white OLED includes a double cavity structure in which a first region and a second region are defined based on a transparent common electrode using a top emission method. A green phosphorescence or fluorescence emission layer is disposed in the first region, a blue fluorescence emission layer is disposed in the second region, a red emission layer is optionally disposed in the first region or the second region, and an optical path control layer (OPCL) for widening color gamut is disposed in a region in which green light and blue light are emitted so that color coordinates are not greatly changed due to a change in thickness of the OPCL and white light having good quality is obtained. | 2009-05-07 |
| 20090115320 | AROMATIC TRIAMINE COMPOUND AND ORGANIC ELECTTROLUMINESCENCE DEVICE USING THE SAME - Provided are an aromatic triamine compound of a specific structure having at least one terphenyl structure and an organic electroluminescence device in which an organic thin film layer comprising a single layer or plural layers having at least a luminescent layer is interposed between a cathode and an anode, wherein at least one layer of the above organic thin film layers contains the aromatic triamine compound described above in the form of a single component or a mixed component, and provided are the organic electroluminescence device having a high luminous efficiency and a long life and the novel aromatic triamine compound for materializing the same. | 2009-05-07 |
| 20090115321 | ORGANIC ELECTROLUMINESCENT DEVICE, METHOD FOR PRODUCING THE SAME, AND ELECTRONIC APPARATUS - An organic electroluminescent device includes a substrate; a plurality of light-emitting elements, each including an organic light-emitting layer held between a pair of electrodes; a display region which overlaps the substrate in plan view and in which the light-emitting elements are disposed; a first connection line which is disposed around the display region and is connected to one of the pair of electrodes and on which a transparent conductive layer is disposed; and a gas barrier layer covering end and top surfaces of the first connection line and top surfaces of the light-emitting elements. | 2009-05-07 |
| 20090115322 | COMPLEXES WITH TRIDENTATE LIGANDS - The present invention relates to organic light emitting devices (OLEDs), and more specifically to phosphorescent organic materials used in such devices. More specifically, the present invention relates to emissive phosphorescent material which comprise at least one tridentate ligand bound to a metal center, wherein at least one of the bonds to the tridentate ligand is a carbon-metal bond. | 2009-05-07 |
| 20090115323 | OLIGOFLUORENE COMPOUND AND ORGANIC EL ELEMENT USING SAME - An oligofluorene compound is represented by the General Formula (1) below | 2009-05-07 |
| 20090115324 | PLATINUM COMPLEX AND ORGANIC LIGHT-EMITTING ELEMENT USING SAME - A platinum complex is represented by General Formula (1) below. | 2009-05-07 |
| 20090115325 | Organic Electroluminescence Display Device and Manufacturing Method Thereof - An organic EL element section ( | 2009-05-07 |
| 20090115326 | Organic light emitting display device and electronic device - An organic electroluminescent device is provided. The organic electroluminescent device includes an array substrate having a white sub-pixel region and an organic electro-luminescent multi-layer structure is disposed on the white sub-pixel region of the array substrate. The organic electro-luminescent multi-layer structure comprises a bottom electrode. The bottom electrode has a thinner first portion and a thicker second portion for providing a wavelength shift of light in different directions. | 2009-05-07 |
| 20090115327 | LIGHT-EMITTING MATERIAL - This invention pertains to light emitting materials comprising novel ortho-metalated transition metal complexes [ĈN] | 2009-05-07 |
| 20090115328 | SURFACE EMITTING-TYPE ELECTROLUMINESCENT DEVICE - In an electroluminescent device which is applied to a backlight and a display device and characterized in that a flexible material construction using a plastic substrate is enabled and the device can be produced at a low cost through a relatively simple step without using a vacuum unit and also in that the emission color of the device can be easily controlled by mixing a plurality of fluorescent material particles differing in the emission color or by using a fluorescent dye for the color conversion, the present invention provides a surface emitting-type electro-luminescent device capable of using a low voltage AC power source, realizing uniform brightness and having a large-area emission surface. | 2009-05-07 |
| 20090115329 | ORGANIC EL DEVICE - An organic EL device is disclosed, which has an organic multilayer between a first electrode and a second electrode, the organic multilayer comprising a hole injection layer formed on the first electrode, and formed of a mixture of at least one selected from organic materials and at least one selected from inorganic materials; a hole transport layer having at least one layer on the hole injection layer; and an emitting layer formed on the hole transport layer. | 2009-05-07 |
| 20090115330 | Self-emitting element, display panel, display apparatus, and method of manufacturing self-emitting element - A display panel includes a light-emitting layer, a protective layer, a reflective layer, and a reflective surface. The protective layer is deposited on an emitting side of the light-emitting layer and forms an interface with an external medium. The protective layer has a thickness that allows the light emitted from the light-emitting layer to undergo total reflection at least once at the interface in an area of the light-emitting layer. The reflective layer is deposited on an opposite side of the protective layer with respect to the light-emitting layer. The reflective surface is at a periphery of the light-emitting layer and changes the direction of the light propagating inside the protective layer emitted from the light-emitting layer. | 2009-05-07 |
| 20090115331 | PLASMA DISPLAY DEVICE - The present invention provides a plasma display device capable of maintaining an electromagnetic wave shielding effect. The plasma display device includes an optical filter having a conductive film, a frame supporting the periphery of the optical filter, a conductive member fixed to the frame, and a conductive back cover with the periphery thereof being contacted with the conductive member. Flexible conductive connecting portions are provided on the periphery of the conductive film, and the connecting portions are connected electrically, in a slack state, to the conductive member, and thereby the conductive film and the conductive member are connected electrically to each other. | 2009-05-07 |
| 20090115332 | IMAGE DISPLAY DEVICE - A problem of the present invention is to reduce discharge delay and discharge voltage in an image display device such as a PDP using ultraviolet rays emission generated by the discharge, thereby improving image quality and reducing cost. In order to solve the above problem, according to the present invention, the image display device using the ultraviolet rays emission generated by discharge includes, within a discharge space, a phosphor where a 1/10 afterglow time is 1 ms or more and a light emitting wavelength is in a range of 200 to 460 nm in which light emitting intensity is at the maximum. Under the same condition, the effect of the invention can be improved by making the 1/10 afterglow time 8 ms or more. Further, the effect of the present invention is further effective by making the 1/10 afterglow time 100 ms or more. | 2009-05-07 |
| 20090115333 | Dielectric materials for plasma display panel device, PDP device using the same and method of preparing the PDP device - A dielectric material for a plasma display panel (PDP) device, a PDP device including the same, and a method of manufacturing the PDP device are taught. The dielectric material includes at least three materials selected from the group consisting of Bi | 2009-05-07 |
| 20090115334 | Conductive composition for black bus electrode, and front panel of plasma display panel - The black bus electrode of plasma display panel is formed from a conductive composition comprising a conductive powder, glass powder, organic binder, organic solvent, and black pigment, wherein the conductive powder is platinum particle or gold particle. | 2009-05-07 |
| 20090115335 | PLASMA DISPLAY PANEL AND METHOD OF PRODUCING THE SAME - A plasma display panel of the present invention includes a display electrode ( | 2009-05-07 |
| 20090115336 | LED SIGNALING APPARATUS WITH INFRARED EMISSION - An infrared signaling apparatus is disclosed, which utilizes high intensity solid state lighting elements, such as light emitting diodes (LEDs) to provide signaling for navigational as well as search/rescue applications employing night vision equipments. | 2009-05-07 |
| 20090115337 | SYSTEM AND METHOD FOR REAL TIME CONTROL OF LIGHTING SYSTEM - A method for real time control of lighting system includes the steps of: providing a computer, a SCM ( | 2009-05-07 |
| 20090115338 | METHOD OF DRIVING PLASMA DISPLAY PANEL AND PLASMA DISPLAY APPARATUS THEREOF - The present invention relates to a plasma display apparatus and, more particularly, to a method of driving a plasma display panel. A plasma display apparatus according to an aspect of the present invention includes a plasma display panel including a plurality of scan electrodes and sustain electrodes formed on an upper substrate, and a plurality of address electrodes formed on a lower substrate; a driver for supplying driving signals to the plurality of electrodes; and a fluorescent layer, comprising a fluorescent material, and a conductive material having conductivity higher than that of the fluorescent material, is formed on the lower substrate. The plurality of scan electrodes may be divided into first and second groups and then supplied with scan signals, and scan bias voltages supplied to the first and second groups in at least any one period of an address period may be different from each other. | 2009-05-07 |
| 20090115339 | Apparatus and Method for Controlling Driving of Lamp - Disclosed are an apparatus and a method for controlling driving of a lamp. The apparatus for controlling driving of a lamp includes a plurality of lamps, a switching module for switching supplied power to output an alternating current (AC) signal, a trans-module for converting the alternating signal into high-voltage signals having different phases to supply the high-voltage signals to the lamps, an open lamp detecting module for adding low-voltage signals having different phases feedback from the trans-module to detect open states of the lamps, and a controller for controlling an operation of the switching module by a signal detected in the open lamp detecting module. | 2009-05-07 |
| 20090115340 | METHOD AND SYSTEM FOR ELIMINATING DC BIAS ON ELECTROLYTIC CAPACITORS AND SHUTDOWN DETECTING CIRCUIT FOR CURRENT FED BALLAST - A system and method is provided that eliminates DC bias on at least one of a first electrolytic capacitor and a second electrolytic capacitor of a bipolar junction transistor (BJT) based inverter ballast having a shutdown control circuit in association with only one of at least two BJT switches. A duty cycle dependent capacitor is connected in a series with a bus of the ballast, and a resonant circuit, including primary winding of the output transformer and a resonant capacitor. A balancing/charging resistor is connected at one end between the first electrolytic capacitor and the second electrolytic capacitor, and at another end to the duty cycle dependent capacitor and the resonant circuit. | 2009-05-07 |
| 20090115341 | LAMP DRIVING CIRCUIT - In a lamp driving circuit for operating a high intensity discharge lamp, an a commutation circuit comprises at least two switching devices. The switching devices are alternately switched active at a commutation frequency. The active switching device switches at a switching frequency. During an ignition mode, the switching frequency and the commutation frequency are substantially equal. A resulting commutation voltage is supplied to an inverter resonant circuit for generating a supply current. At a node of the inverter resonant circuit, a clamping circuit limits the generated voltage to a predetermined maximum voltage. The voltage at said node of the inverter resonant circuit is applied to an output resonant circuit. The output resonant circuit operates in the ignition mode as a resonator for generating a high ignition voltage; in a steady state operation mode, the output resonant circuit operates as a low-pass filter for reducing a high frequency current component in a lamp current. | 2009-05-07 |
| 20090115342 | Lighting System for Illumination Using Cold Cathode Fluorescent Lamps - A lighting system for illuminating a chamber in a building includes a lighting fixture suitable for being mounted onto a surface of the chamber, so that light emitted by at least one CCFL device mechanically supported by the fixture illuminates the chamber. The one CCFL device includes at least one transformer. A driver adapted to be connected to a surface of the chamber is capable of converting input power from a power source to an AC power having a voltage in the range of about 5-400 volts and a current at a frequency in the range of about 1 kc-100 kc. The at least one transformer is suitable for converting the AC power to an output power suitable for operating the at least one CCFL, causing the at least one CCFL to emit light. Physically separating the driver from the at least one CCFL device reduces the adverse effects of heat generated by the at least one CCFL device on the driver and increasing the useful life of the CCFL lighting system. A controller may be used to control light emitted substantially simultaneously by a plurality of the above lighting systems, such as for large commercial or public area illumination, by sending signals to the drivers to control the amount of power that is supplied to the CCFLs. Different power may be separately supplied to CCFLs having different phosphors in each of a plurality of CCFL devices in a plurality of the lighting systems, to adjust substantially simultaneously the color temperature of light emitted by the lighting systems. | 2009-05-07 |
| 20090115343 | LED Power Regulator with High-Speed LED Switching - One embodiment of the invention includes a power regulator system. The system comprises at least one power switch configured to repeatedly couple an inductor to an input voltage to regulate a current flow through the inductor. The system also comprises a light-emitting diode (LED) configured to provide illumination based on an amount of the current flow through the inductor. The system further comprises an output switch configured to couple and decouple the LED from the current flow through the inductor in response to an activation signal. | 2009-05-07 |
| 20090115344 | LIGHTING APPARATUS DRIVEN BY COLOR COORDINATE SELECTION MODULE - Provided is a lighting apparatus driven by a color coordinate selection module, which can emit color light corresponding to a chromaticity on a color coordinate, which is selected by a user. The lighting apparatus includes a chromaticity selection unit for providing a chromaticity and color temperatures so that a user can select the chromaticity and color temperatures, a light-emitting unit in which a plurality of light-emitting elements is arranged to selectively emit color light of different colors, a storage unit for storing driving pattern data of the light-emitting elements in response to the chromaticity and color temperatures that can be selected by the chromaticity selection unit, and a controller for controlling the driving of the light-emitting unit using the driving pattern data stored in the storage unit such that light of a chromaticity and color temperature selected by the chromaticity selection unit can be emitted. | 2009-05-07 |
| 20090115345 | HIGH EFFICIENCY OFF-LINE LINEAR POWER SUPPLY - A power supply circuit comprising a charge storage capacitor having a first capacitor terminal adapted to provide a power supply voltage of the power supply and a second capacitor terminal coupled to a circuit common; a first switching device having a first switching terminal adapted to be connected to a voltage source, a second switching terminal operatively coupled to the first capacitor terminal of the charge storage capacitor, and a control terminal, the first switching device characterized by a control terminal switching threshold voltage, the first switching device adapted to conduct a charging current from the first switching terminal to the second switching terminal and into the charge storage capacitor; a control circuit controlling an on/off operation of the first switching device whereby the first switching device is operable to turn on when the magnitude of the voltage of the voltage source is below a predetermined level and turn off when the magnitude of the voltage of the voltage source is above the predetermined level; and a control voltage supply circuit operatively coupled between the first switching terminal of the first switching device and the first capacitor terminal of the charge storage capacitor, the control voltage supply circuit providing a control supply voltage; wherein a control terminal voltage derived from the control supply voltage is provided to the control terminal of the first switching device when the control circuit controls the first switching device to be on, the control terminal voltage having a magnitude in excess of the switching threshold voltage, thereby driving the switching device on in a saturated region of operation. | 2009-05-07 |
| 20090115346 | PNP light emitting transistor and method - A semiconductor light-emitting transistor device, including: a bipolar pnp transistor structure having a p-type collector, an n-type base, and a p-type emitter; a first tunnel junction coupled with the collector, and a second tunnel junction coupled with the emitter; and a collector contact coupled with the first tunnel junction, an emitter contact coupled with the second tunnel junction, and a base contact coupled with the base; whereby, signals applied with respect to the collector, base, and emitter contacts causes light emission from the base by radiative recombination in the base. | 2009-05-07 |
| 20090115347 | CURRENT CONTROL CIRCUIT, LED CURRENT CONTROL APPARATUS, AND LIGHT EMITTING APPARATUS - A counter circuit increments a count value bit by bit in synchronization with a clock pulse received from an oscillating portion. A lower order decoder receives the count value output from the counter circuit, compares a bit or bits on a lower side with a set value | 2009-05-07 |
| 20090115348 | Light emitting device - The luminance of different colors of light emitted from EL elements in a pixel portion of a light emitting device is equalized and the luminance of light emitted from the EL elements is raised. The pixel portion of the light emitting device has EL elements whose EL layers contain triplet compounds and EL elements whose EL layers contain singlet compounds in combination. The luminance of light emitted from the plural EL elements is thus equalized. Furthermore, a hole transporting layer has a laminate structure to thereby cause the EL elements to emit light of higher luminance. | 2009-05-07 |
| 20090115349 | METHOD AND CONTROL ARCHITECTURE TO DETERMINE MOTOR TORQUE SPLIT IN FIXED GEAR OPERATION FOR A HYBRID POWERTRAIN SYSTEM - An electro-mechanical transmission is operative to transmit mechanical torque originating from an engine and first and second electric machines to an output member. The electric machines are electrically-operatively connected to an energy storage system for electrical power flow therebetween. A Method for operating the electro-mechanical transmission includes operating the electro-mechanical transmission in a fixed gear operating range state, determining a minimum power flow between the energy storage system and the first and second electric machines to meet an operator torque request based upon electrical power constraints and motor torque constraints, commanding a motor torque from the first electric machine based upon the minimum power flow, and commanding a motor torque from the second electric machine based upon the minimum power flow, a torque input from the engine and the commanded motor torque from the first electric machine to meet the operator torque request in the fixed gear operating range state. | 2009-05-07 |
| 20090115350 | METHOD FOR DETERMINING AN ACHIEVABLE TORQUE OPERATING REGION FOR A TRANSMISSION - A method for controlling a transmission operative to transfer power between an input member and torque machines and an output member includes determining available power, motor torque constraints, and other constraints on torque transfer. Equations are provided, transformed to a second coordinate system and simultaneously solved. An achievable torque operating region is determined. | 2009-05-07 |
| 20090115351 | METHOD FOR MANAGING ELECTRIC POWER IN A POWERTRAIN SYSTEM - A powertrain system includes a transmission operative to transfer power between a plurality of power actuators and an output member, and an energy storage device. A method for controlling the powertrain system includes establishing a first set of electric power limits and a second set of electric power limits for the energy storage device, determining a preferred input power from a first power actuator based upon the first set of electric power limits, determining a first set of power constraints for constraining input power from the first power actuator and a second set of power constraints for constraining output power from the output member based upon a second set of electric power limits, and controlling operation of the powertrain system based upon the preferred input power, the first set of power constraints, and the second set of power constraints. | 2009-05-07 |
| 20090115352 | METHOD AND APPARATUS FOR CONSTRAINING OUTPUT TORQUE IN A HYBRID POWERTRAIN SYSTEM - A powertrain system includes a transmission operative to transfer power between an engine coupled to an input member and a plurality of torque machines and an output member, A method for controlling the powertrain system includes monitoring system operation and determining an output torque request, determining a closed loop speed error, determining motor torque offsets to the torque machines based upon the closed loop speed error, determining output torque constraints based upon the motor torque offsets and the system operation, determining an output torque command based upon the output torque request and the output torque constraints, determining preferred motor torque commands for the torque machines based upon the output torque command, reducing the preferred motor torque commands for the torque machines using the motor torque offsets to the torque machines, and adjusting the reduced preferred motor torque commands for the torque machines based upon the closed loop speed error. | 2009-05-07 |
| 20090115353 | METHOD OF DETERMINING OUTPUT TORQUE LIMITS OF A HYBRID TRANSMISSION OPERATING IN A FIXED GEAR OPERATING RANGE STATE - A hybrid transmission is operative to transfer power between an input member and first and second torque machines and an output member in a fixed gear operating range state. The first and second torque machines are connected to an energy storage device. A method for controlling the hybrid transmission includes determining an output torque command at the output member, determining motor torque constraints for the first and second torque machines and determining power constraints for the energy storage device, iteratively selecting candidate input torques transferable to the input member and associated output torques, determining a second torque constraint associated with the candidate input torque, determining a third torque constraint associated with the candidate input torque, and determining a preferred input torque comprising the candidate input torque that achieves the commanded output torque at the output member and satisfies the motor torque constraints for the first and second torque machines, satisfies the power constraints for the energy storage device, and satisfies the second and third torque constraints associated with the candidate input torque when operating in the fixed gear operating range state. | 2009-05-07 |
| 20090115354 | METHOD FOR ELECTRIC POWER BOOSTING IN A POWERTRAIN SYSTEM - A powertrain system is operative to transfer power between an input member and a plurality of power actuators and an output member to generate an output torque. The power actuators are connected to an energy storage device. A method for controlling the powertrain system includes monitoring operating conditions of the powertrain system, determining an electric power limit for output power of the energy storage device, selectively enabling electric power boost based upon the operating conditions of the powertrain system, and increasing the electric power limit when electric power boost is enabled. | 2009-05-07 |
| 20090115355 | Electric Power Control Device, Electric Powered Vehicle Including the Same, and Method for Controlling Electric Power of Electric Powered Vehicle - A load on a vehicle is connected to first and second neutral points in first and second motor generators through a relay circuit and power output lines. A control device controls inverters depending on a requested voltage of the load on a vehicle such that a potential at the first neutral point becomes higher than a potential at the second neutral point by that requested voltage. | 2009-05-07 |
| 20090115356 | POWER TRANSMISSION DEVICE, AND DISPLAY DEVICE AND DISPLAY PANEL PEDESTAL THAT HAVE THE POWER TRANSMISSION DEVICE - A power transmission device capable of adjusting a torque to be applied to an output shaft easily and removing a backlash between gears exactly, and a display device and a display panel pedestal that have the power transmission device. A power transmission device | 2009-05-07 |
| 20090115357 | Detection and Delimitation of Maximum Stator Currents - A device for driving a magnetic levitation train has at least one controllable power supply unit that feeds at least one multi-phase power supply line, and a long stator with stator windings that extend in switching sections of the long stator. Each switching section can be connected to at least one of the power supply lines via an assigned section feed switch and each stator winding has at least one assigned current sensor for detecting a current and at least one assigned evaluation unit connected to the sensor. In order to permit a simple, precise overcurrent protection, each current sensor is configured to detect the current in one phase of each assigned stator winding and the evaluation unit is configured to deactivate the section feed switch, if the current detected in each case exceeds a previously defined threshold value. | 2009-05-07 |
| 20090115358 | Hybrid vehicle and method of controlling hybrid vehicle - A hybrid vehicle includes a power generator that generates electric power using power from an internal combustion engine; a motor that outputs power for travel of the hybrid vehicle; a first inverter connected to an electric power storage device and the motor to drive the motor; a second inverter connected to the electric power storage device; and a large drive power determination portion that determines whether the hybrid vehicle is in a large-drive-power required state in which drive power equal to or larger than a predetermined value is required for the travel of the hybrid vehicle. When it is determined that the hybrid vehicle is not in the large-drive-force required state, the second inverter is connected to the power generator. When it is determined that the hybrid vehicle is in the large-drive-force required state, the second inverter is connected to the motor. | 2009-05-07 |
| 20090115359 | ADJUSTMENT DEVICE FOR A MOTOR VEHICLE SEAT - An adjustment device for a motor vehicle seat that includes an electric motor, a gear connected to the electric motor, a mechanical adjustment unit connected to the gear and a control circuit, at least one sensor being associated with the control circuit for detecting a critical situation of the motor vehicle and the control circuit providing an operating voltage for the electric motor, characterized in that the control circuit provides as an alternative, in addition to the normal operating voltage, an overvoltage for supplying the electric motor, that the normal operating voltage applies in a normal driving condition of the motor vehicle in which the sensor does not deliver any signal, that the overvoltage applies at the electric motor in a driving condition after the sensor has delivered a signal indicating that the driving condition is no longer normal and that the overvoltage is at least 150% of the value of the normal operating voltage, more specifically at least 200% of the value of the normal operating voltage. | 2009-05-07 |
| 20090115360 | PWM CONTROL CIRCUIT AND PWM CONTROL METHOD - The PWM control circuit includes a polarity determination unit, a full wave rectification unit, an adjustment unit that generates an adjusted waveform signal by adjusting waveform of the full wave rectification signal, and a carrier signal generating unit that generates a fixed frequency carrier signal. The PWM control circuit further includes a comparator that generates an original PWM signal by comparing the adjusted waveform signal and the carrier signal, and a PWM waveform shaping unit that generates a first PWM signal for the positive polarity section and a second PWM signal for the negative polarity section, by shaping the original PWM signal according to the polarity signal. | 2009-05-07 |
| 20090115361 | PERMANENT MAGNET MOTOR AND WASHING MACHINE PROVIDED THEREWITH - A permanent magnet motor includes a rotor including a rotor core and a plurality of permanent magnets located inside the rotor core and establishing a plurality of magnetic poles. In the permanent magnet motor, the permanent magnets include a plurality of types of permanent magnets having different coercive forces. The types of permanent magnets are disposed so that each one type constitutes one magnetic pole. | 2009-05-07 |
| 20090115362 | Electric motor control device, electric vehicle, and hybrid electric vehicle - An electric motor control device includes a direct current power source; an inverter interposed between an electric motor and the direct current power source, the inverter device controlling an exchange of electric power therebetween; an inverter control unit that generates PWM pulses having a duty ratio corresponding to voltage command signals and sends the PWM pulses to the inverter in order to switch the inverter; a frequency changing unit that changes a carrier frequency of the PWM pulses generated by the inverter control unit in a manner corresponding to a frequency control signal; and a motor control unit. | 2009-05-07 |
| 20090115363 | Electronic Commutator Circuits - The electronic commutator circuits provide forced commutation enhancements that can be embedded within a known electronic commutator to overcome its low speed torque limitation. The forced commutation enhancements to the basic switched stage use a pair of thyristors. Capacitors may be pre-charged and synchronized to supplement coil voltages when discharged, thereby reducing commutation overlap duration and maximizing the turn-off time available to allow the thyristors to attain forward blocking capability. A capacitive discharge can be achieved by initiating the capacitive discharge by the same thyristor that will carry the current following the commutation, or by initiating the capacitive discharge by an auxiliary thyristor. | 2009-05-07 |
| 20090115364 | ELECTRIC MOTOR DRIVING DEVICE, AND AIR CONDITIONER USING THE SAME - Disclosed is a motor-driving device capable of protecting an inverter from breakdown. First current-protecting section retains reference voltage value Vref | 2009-05-07 |
| 20090115365 | METHOD OF DETERMINING TORQUE LIMIT WITH MOTOR TORQUE AND BATTERY POWER CONSTRAINTS - A method to determine a limit torque associated with an electro-mechanical transmission includes determining electric motor torque constraints and battery power constraints. A limit torque function and a standard form of the limit torque function are determined. The limit torque function and the motor torque constraints and the battery power constraints are transposed to the standard form to determine a limit torque. | 2009-05-07 |
| 20090115366 | Pivoting and Barrier Locking Operator System - An operator system for moving a barrier between limit positions, includes an operator motor assembly mounted to the barrier, wherein the motor assembly is movable between an operating position and a locking position with the motor assembly blocking movement of the barrier. A bias assembly allows the motor assembly to move toward the locking position when either a predetermined force overcomes a biasing force, or when the barrier is moved to a closed position or when forced entry is imposed on the barrier. A modified blocker tab having a plurality of projections, and which is part of the motor assembly, allows the speed/angular position of the rotation of the motor assembly to be monitored with increased resolution. | 2009-05-07 |
| 20090115367 | Portable battery DC charger - A portable battery DC charger includes a DC power storage having a charging terminal and a discharging terminal, a docking station outfitting the DC power storage to retain the DC power storage at a predetermined orientation, and a utility device integrally provided at the docking station, wherein when the DC power storage is docked at the docking station, the DC power storage is selectively operated to charge the DC power storage at the charging terminal thereof and to discharge the DC power storage at the discharging terminal for charging an internal battery of an electronic device. | 2009-05-07 |
| 20090115368 | Distributed electric power generation - An electric power generating system is arranged such that the system efficiency approaches 100%. In the context of this special arrangement, system efficiency is defined as the electrical energy produced divided by the amount of heat energy allocated to its production. All heat energy that is not converted to electric energy is completely used by an associated household. However, high efficiency requires that heat usage by the household is not increased as a result of this arrangement. Unlike most electric power generation, heat is not wasted, so there is no inefficiency. | 2009-05-07 |
| 20090115369 | PORTABLE ELECTRONIC APPARATUS AND CIRCUIT AND METHOD FOR CHARGING RECHARGEABLE BATTERY THEREOF - A portable electronic apparatus capable of dynamically adjusting a charging current includes a memory unit, a memory controlling unit, a detecting unit, a current-adjusting unit and a rechargeable battery. The memory controlling unit is coupled to the memory unit for reading/writing the data of the memory unit. The detecting unit is coupled to the memory controlling unit for detecting the portable electronic apparatus to determine whether or not the portable electronic apparatus executes any operation, for example, reading/writing data or playing music and thereby generating a detection result. The current-adjusting unit is coupled to the detecting unit for correspondingly adjusting the charging current according to the detection result. The rechargeable battery is coupled to the current-adjusting unit for receiving the charging current for charging. | 2009-05-07 |
| 20090115370 | Power Controller for Reducing Power Consumption of Off-Line Energy Loads - An AC powered charging station for multiple charger adapters is provided. The charging station includes a housing with at least one stowage volume with at least three sides collectively sized to accommodate multiple charger adapters. At least one AC outlet is accessible from said stowage volume. At least one relay is connected to at least one relay controlled AC outlet accessible from the storage volume. At least one timer is connected to at least one relay controlled AC outlet, and a timer activation switch may activate the timer to begin a power on cycle. The charging station may also include a storage area for storing devices. The storage are may include a plurality of leads for leading DC connectors from the stowage volume to the storage area. | 2009-05-07 |
| 20090115371 | System and method for battery control of hybrid locomotives - A system and method are provided for battery control of hybrid vehicles such as, but not limited to, hybrid locomotives. The system and method are implemented to sense a present state of charge (SoC) of one or more batteries and generate present SoC data there from, sense a present excursion defined by a relationship represented as maximum SoC−minimum SoC for a desired cycle and generate present excursion data there from, and control the one or more battery power/current charging limits in response to the present SoC data and the present excursion data. | 2009-05-07 |
| 20090115372 | DISCHARGE CONTROL SYSTEM - A discharge control system of a electric storage pack has a plurality of electric rechargeable cells connected in series and a discharge line is connected from a electric rechargeable cell to a load driving feeding circuit. The discharge control system includes cell voltage detection units for detecting respective cell voltages of the plurality of cells, a switch group made up of a plurality of switches connected between the plurality of cells, and a control unit which designates a cell having a highest cell voltage in the plurality of electric rechargeable cells possessed by the electric storage pack in accordance with detection results by the cell voltage detection units and on/off controls the switches of the switch group individually so as to form a discharge line from a electric rechargeable cell of the group to the load driving feeding circuit. | 2009-05-07 |
| 20090115373 | METHOD OF CHARGING A POWERTRAIN - A method of charging a powertrain includes detecting an external power source in electrical communication with the powertrain, establishing a virtual network between charging control module, and transferring charge from the external power source to the powertrain. | 2009-05-07 |
| 20090115374 | Charging Circuit For Secondary Battery, Power Supply Switching Method In Charging Circuit For Secondary Battery, And Power Supply Unit - A disclosed charging circuit charges a secondary battery by using a first direct current power supply that generates and outputs a first voltage. A highest voltage among the first voltage of the first direct current power supply, a second voltage generated from power supplied from outside, and a secondary battery voltage of the secondary battery is supplied as a power supply to the charging circuit. | 2009-05-07 |
| 20090115375 | Power supply system for vehicle - A power supply system for a vehicle includes: batteries; motor generators operating as rotating electrical machines driven by electric power in the batteries when the vehicle is running, and constituting a first charger when the batteries are charged by electric power received from a source external to the vehicle and; an inlet receiving the electric power supplied from the external source; a second charger receiving the electric power supplied from the external source and charging the batteries; and a control device selecting one of the first and second chargers and performing control for converting the electric power supplied from the external source to the inlet into charging electric power using the selected charger. Thus, a power supply system for a vehicle that is chargeable from various power supplies at the time of charging and has reduced charge loss can be provided. | 2009-05-07 |
| 20090115376 | CHARGING CONTROL DEVICE FOR A STORAGE BATTERY - One of first through fourth target state of charge levels, which are set at values that increase gradually over time, is selected on the basis of an ON/OFF state of a specific current consumer installed in the vehicle and a state of charge immediately preceding an engine stoppage. A target state of charge is set on the basis of the selected target state of charge level and an elapsed time after the lead storage battery is installed in the vehicle, whereupon the target state of charge is compared with the actual state of charge of the lead storage battery. The lead storage battery is charged in accordance with the comparative result. | 2009-05-07 |
| 20090115377 | METHOD OF EXTERNALLY CHARGING A POWERTRAIN - A method of externally charging a powertrain includes monitoring a voltage level of a first battery, determining when the monitored voltage level is below a first voltage threshold, and when the monitored voltage level is below the first voltage threshold, charging the first battery by supplying power from an external power source and increasing voltage of the power supplied by the external power source within the powertrain. | 2009-05-07 |
| 20090115378 | APPARATUS AND METHOD OF CONTROLLING GENERATION OF ELECTRIC POWER IN VEHICLE - The present invention relates to an apparatus for controlling generation of electric power in a vehicle that is capable of calculating a target state of charge (SOC) of a battery on the basis of a SOC of the battery and an amount of accumulated current according to individual driving modes and performing a feedback control on generation of an alternator to follow the target SOC, thereby maintaining an optimal SOC and improving fuel efficiency. | 2009-05-07 |
| 20090115379 | Soft-Start Circuit for Power Regulators - One embodiment of the present invention includes a system for providing a soft-start for a power regulator comprising a differential transistor pair that receives an input current and conducts a first current through a first transistor and a second current through a second transistor. One of the first and second current changes in response to a change in the other to maintain a sum of the first and second current being substantially equal to the input current. The system also comprises a comparator that provides an output signal based on a comparison of a first input voltage and a second input voltage associated with the first current and the second current, respectively. The system further comprises a current source activated by the output signal to charge a capacitor that increases a soft-start reference voltage associated with control of the power regulator and which controls the change in the other of the first and second current. | 2009-05-07 |
| 20090115380 | Internal voltage generator - An apparatus for generating an internal voltage includes an output-voltage detecting unit for detecting a voltage level of an internal voltage, an oscillating unit for generating a periodic signal in response to a detection signal from the output-voltage level detecting unit, a first driving-voltage level detecting unit for detecting an increase of a voltage level of a driving voltage, a second driving-voltage level detecting unit for detecting a decrease of a voltage level of the driving voltage, a period control unit for controlling a period of the periodic signal in response to output signals of the first and second driving-voltage level detecting units, and a charge pumping unit for generating the internal voltage by charge-pumping the driving voltage in response to an output signal from the period control unit. | 2009-05-07 |
| 20090115381 | AUTOMATIC FREQUENCY CONTROL FOR SERIES RESONANT SWITCHED MODE POWER SUPPLY - A switched mode power supply comprises a half bridge circuit or a full bridge circuit. A resonant circuit is connected to the bridge circuit and comprises an inductive element ( | 2009-05-07 |
| 20090115382 | LINEAR REGULATOR CIRCUIT, LINEAR REGULATION METHOD AND SEMICONDUCTOR DEVICE - According to one aspect of the embodiment, a linear regulator circuit includes an output transistor outputting an output current based on a input voltage, an error amplifier outputting a control signal based on an electric potential difference between an output voltage based on the output current and a reference voltage, a buffer circuit coupled between the error amplifier and the output transistor, and a drive capability adjustment circuit adjusting a load drive capability of the buffer circuit in synchronization with the output current. | 2009-05-07 |
| 20090115383 | System And Method For Controlling Mode Crossover Time In A Power Supply - A system for controlling mode crossover time in a power supply includes a power output element having a constant voltage control loop and a constant current control loop, the constant voltage control loop having a first error amplifier and the constant current control loop having a second error amplifier. An additional error amplifier is operatively coupled to a compensation capacitance associated with the second error amplifier, the additional error amplifier configured to cause the constant current control loop to provide an additional current to flow from the constant current control loop, thus causing the power output element to transition from a constant voltage mode to a constant current mode responsive to a programmed voltage value. | 2009-05-07 |
| 20090115384 | Distributed Power Management - Apparatuses, methods, and systems for effective power management distribution are provided. In an embodiment, a system for providing power to a circuit block comprises a power management unit (PMU) configured on a first substrate and an integrated circuit (IC) configured on a second substrate. The PMU includes a first regulator configured to step down an input voltage and output a first regulated voltage. The IC includes the circuit block and a second regulator configured to receive the first regulated voltage and output a second regulated voltage. The second power regulated voltage provides power to the circuit block. The first regulator is more efficient than the second regulator. | 2009-05-07 |
| 20090115385 | Dual circuit wall switch occupancy sensor and method of operating same - A method and apparatus are provided for detecting occupancy in an area using multiple detection technologies (e.g., ultrasound and infrared sensing) to intelligently control switching of plural load circuits whereby one of the circuits is affected by photocell control. A programmable controller implements auto-on, manual-on, reversion to auto-on and override operations with respect to the separately controlled load circuits based on sensor outputs and user inputs. An improved power supply for an occupancy sensor and load control device employs a DC voltage derived from leakage AC voltage between line and ground to drive the sensors and other circuits, and a switching regulator with a switching cycle controlled by a pulse width modulated (PWM) subsystem of the apparatus, allowing synchronous, delayed or exclusive operation relative to the sensing technology such as the US transmitter. | 2009-05-07 |
| 20090115386 | POWER SUPPLY CIRCUIT AND PORTABLE DEVICE - In a power supply circuit, a first switching transistor and a second switching transistor are serially connected between another-side terminal GND and a one-side terminal V | 2009-05-07 |
| 20090115387 | VOLTAGE GENERATING CIRCUIT - A voltage generating circuit comprising: a switching device which includes a first end connected to a high potential side power source, and which becomes conductive in a first mode and becomes non-conductive in a second mode; a first transistor including a first main electrode connected to a second end of the switching device, a second main electrode connected to an output terminal, and a gate connected to a gate potential supply node; a second transistor including a first main electrode connected to the high potential side power source, a second main electrode connected to the output terminal, and a gate connected to the gate potential supply node; and a gate voltage stabilizing circuit that suppresses a fluctuation in potential of the potential supply node, the fluctuation accompanying a change between the first and second modes. | 2009-05-07 |
| 20090115388 | DC/DC converter - A DC/DC converter is constituted of a switching element (e.g., a MOS transistor), an LC low-pass filter constituted of an inductor and a capacitor, and a control circuit for controlling the on/off timing of the switching element such that the output voltage is set to a predetermined voltage value. A series circuit (serving as a snubber circuit) constituted of a resistor and a switch is further connected in parallel with the inductor. The control circuit closes the switch so that the resistor is connected in parallel with the inductor in a resonance mode of the LC low-pass filter. Thus, it is possible to dissipate energy accumulated in the inductor in a short time without using a relatively large circuit scale, thus avoiding the occurrence of ringing. | 2009-05-07 |
| 20090115389 | PULSE WIDTH MODULATION REGULATOR SYSTEM WITH AUTOMATICALLY SWITCHING PULSE SKIPPING MODE - A pulse width modulation (PWM) Regulator System with automatically switching pulse skipping mode (PSM) is disclosed. The PWM regulator system comprises a PWM regulator, a PSM switching module and a pulse generator. The PWM regulator converts the input voltage by PWM. The PSM switching module determines to enter or exit the PSM. The pulse generator adaptively produces pulse signal for the switching regulator to operate in PSM. | 2009-05-07 |
| 20090115390 | POWER CONVERTER WITH PROTECTION MECHANISM FOR DIODE IN OPEN-CIRCUIT CONDITION AND PULSE-WIDTH-MODULATION CONTROLLER THEREOF - A power converter with a protection mechanism for a diode in an open-circuit condition includes a DC to Dc (DC/DC) conversion circuit, a detection and protection circuit, a pulse-width-modulation (PWM) signal generator, and a logic gate. The detection and protection circuit is used for detecting an open-circuit condition of the diode of the DC/DC conversion circuit. The logic gate receives an output signal of the detection and protection circuit and a PWM signal outputted by the PWM signal generator. When the diode is in an open-circuit condition, the PWM signal cannot be transmitted to a power switch of the DC/DC conversion circuit due to the output signal of the detection and protection circuit. | 2009-05-07 |
| 20090115391 | Load-Dependent Frequency Jittering Circuit and Load-Dependent Frequency Jittering Method - The present invention discloses a load-dependent frequency jittering circuit, comprising: a load condition detection circuit for receiving a switching signal and generating an output according to a load condition; a number generator for receiving the output of the load condition detection circuit and generating a number; a digital to analog converter for converting the output of the number generator to an analog signal; and an oscillator for generating a jittered frequency according to the output of the digital to analog converter. | 2009-05-07 |
