17th week of 2010 patent applcation highlights part 18 |
Patent application number | Title | Published |
20100102697 | LIGHTING DEVICE WHICH INCLUDES ONE OR MORE SOLID STATE LIGHT EMITTING DEVICE - There is provided a lighting device which comprises at least one solid state light emitter and a substantially transparent heat sink. The heat sink and the solid state light emitter are positioned and oriented relative to one another such that if the solid state light emitter is illuminated, light emitted by the solid state light emitter which exits the lighting device passes through at least a portion of the heat sink. Also, there is provided a lighting device which comprises at least one solid state light emitter and means for extracting heat from the solid state light emitter. | 2010-04-29 |
20100102698 | HIGH REFRACTIVE INDEX MATERIALS FOR ENERGY EFFICIENT LAMPS - Disclosed herein are optical interference multilayer coatings comprising a plurality of alternating low refractive index and high refractive index layers, where the high refractive index layers comprise at least one mixed metal oxide selected from: NbTaX oxide where X is selected from the group consisting of Hf, Al and Zr; NbTiY oxide where Y is selected from the group consisting of Ta, Hf, Al and Zr; and TiAlZ oxide where Z is selected from the group consisting of Ta, Hf and Zr. Also disclosed herein are lamps comprising a light-transmissive envelope, at least a portion of the surface of the light-transmissive envelope being provided with the optical interference multilayer coating noted above. Such coatings, when used on lamps, may advantageously offer improved energy efficiencies for such lamps. | 2010-04-29 |
20100102699 | Discharge Lamp and Method for Producing a Discharge Lamp - A discharge lamp having a discharge vessel ( | 2010-04-29 |
20100102700 | Flame spray pyrolysis with versatile precursors for metal oxide nanoparticle synthesis and applications of submicron inorganic oxide compositions for transparent electrodes - Flame spray pyrolysis can be performed using aqueous solvents for the delivery of metal and/or metalloid oxide precursors while obtaining desirably high flame temperatures for the synthesis of uniform submicron inorganic oxide particles. A multiple liquid channel nozzle can be used to deliver liquid for the formation of the aerosol that is combusted in the flame. One or both channels can deliver liquid with metal/metalloid precursors and/or organic fuels. Flame spray pyrolysis can be used to form metal tungsten oxide submicron particles. Metal tungsten oxide compositions can be used in the formation of transparent electrodes. If the transparent electrodes are formed from polymer inorganic particle composites, the composites can further comprise electrically conductive nanoparticles to improve the electrical conductivity. | 2010-04-29 |
20100102701 | ELECTRON TUBE - An electron tube of the present invention includes: a vacuum vessel including a stem portion made of quartz and formed with an opening; a lid portion connected to the stem portion via a joining member made of aluminum so as to seal the opening, having a recess portion depressed to a vacuum side in the opening, and made of Kovar; a voltage applying section arranged in the vacuum vessel; and wiring for electrically connecting the voltage applying section and the lid portion. | 2010-04-29 |
20100102702 | COMPONENT FOR AN ELECTRIC LAMP WITH OUTER BULB - An assembly for an electric lamp with an elongated inner bulb, which is sealed at two ends, the inner bulb including a lamp axis, and a light-emitter-being accommodated in the inner bulb, the inner bulb being surrounded by an outer bulb, wherein the outer bulb is substantially circular-cylindrical, and includes two parts, at least one part having a rounded-off, sealed first end, and the two parts each having an open second end, which ends are matched to one another in terms of diameter, and the parts being connected to one another in the region of the open end via a certain sealing path, the inner bulb being held in the outer bulb via two frame wires, which are passed out of the outer bulb between the two parts. | 2010-04-29 |
20100102703 | DISCHARGE LAMP AND ILLUMINAN COMPOUND FOR A DISCHARGE LAMP - The invention relates to an illuminant compound for a discharge lamp ( | 2010-04-29 |
20100102704 | ILLUMINANT MIXTURE FOR A DISCHARGE LAMP AND DISCHARGE LAMP, IN PARTICULAR AN Hg LOW-PRESSURE DISCHARGE LAMP - The invention relates to an illuminant mixture for a discharge lamp ( | 2010-04-29 |
20100102705 | FLUORESCENT LAMP HAVING CERAMIC-GLASS COMPOSITE ELECTRORDE - Disclosed is a fluorescent lamp having ceramic-glass composite electrodes, which has a higher dielectric constant, higher secondary electron emission, and higher polarization under the same electric field, and thus enables the movement of many more electrons and cations, resulting in high brightness. The fluorescent lamp having ceramic-glass composite electrodes includes a glass tube, which has a phosphor applied on the inner surface thereof and is filled with a mixture of inert gas and metal vapor, both ends of which are sealed; and hollow cylindrical electrodes provided at both ends of the glass tube, each of the hollow cylindrical electrodes having a stepped portion between a central portion thereof and an end portion thereof, and being formed of a ceramic-glass composite. As the material for the electrode, a composite, including a CaO—MgO—SrO—ZrO | 2010-04-29 |
20100102706 | ELECTROLUMINESCENT DEVICE WITH INCREASED FILL FACTOR - An electroluminescent device including at least two spaced-apart electrodes wherein at least a portion of each of the two spaced-apart electrodes overlap within a first area and a second portion of the two spaced-apart electrodes do not overlap within a second area; a light-emitting layer having a first resistivity formed between the two electrodes, the light-emitting layer disposed to overlap at least a portion of both the first and second areas; a carrier-diffusing layer formed between the light-emitting layer and one of the spaced-apart electrodes; the carrier-diffusing layer disposed to overlap the light-emitting layer in at least a portion of both the first and second areas; and wherein the carrier-diffusing layer has a second resistivity selected to be lower than the first resistivity to cause light to be produced by the light-emitting layer within the first and second areas. | 2010-04-29 |
20100102707 | RED FLUORESCENT SUBSTANCE AND LIGHT-EMITTING DEVICE EMPLOYING THE SAME - The present invention provides a red fluorescent substance and a light-emitting device utilizing the substance. This device less suffers from color drift even when working with high power. The light-emitting device comprises a blue LED, a green fluorescent substance of Sr | 2010-04-29 |
20100102708 | ORGANIC LIGHT EMITTING DEVICE - An organic light emitting device including an anode including a lanthanide oxide. The lanthanide oxide is doped with a conductive material including rubidium, titanium, or combinations thereof. The organic light emitting device further includes a cathode, an organic hole transport layer intermediate the anode and cathode, and an electron injection layer intermediate the anode and cathode. | 2010-04-29 |
20100102709 | RADIALENE COMPOUNDS AND THEIR USE - The present invention relates to radialene compounds as well as to their use as doping agent for doping an organic semiconductive matrix material, as blocker material, as charge injection layer, as electrode material as well as organic semiconductor, as well as electronic components and organic semiconductive materials using them. | 2010-04-29 |
20100102710 | Novel organic electroluminescent compounds and organic electroluminescent device using the same - The present invention relates to novel organic electroluminescent compounds, and organic electroluminescent devices comprising the same. Specifically, the novel organic electroluminescent compounds according to the invention are characterized in that they are represented by Chemical Formula (1): | 2010-04-29 |
20100102711 | Light-emitting material - This invention pertains to light emitting materials comprising novel ortho-metalated transition metal complexes [ĈN] | 2010-04-29 |
20100102712 | Organic light-emitting diode device and manufacturing method thereof - An organic light-emitting diode (OLED) device and a manufacturing method thereof are provided. The OLED device comprises more than one light emitting layer. The emissive zone is capable to emit red or long wavelength visible light near the cathode, and emit blue or short wavelength visible light near the anode. The device emits visible light with a lower color temperature at low voltages, and emits visible light with a higher color temperature at higher voltages. By adjusting the input voltage, the device is capable to emit white light or other color lights with desired color temperature. | 2010-04-29 |
20100102713 | ORGANIC LIGHT EMITTING DISPLAY DEVICE - Embodiments of the present invention provide an organic light emitting display device including: a plurality of light emitting elements on a first substrate, each of the plurality of light emitting elements including a first electrode and an organic light emitting layer, and a second electrode on the plurality of light emitting elements; a second substrate facing the first substrate with the plurality of light emitting elements therebetween; spacers on the second substrate corresponding to portions of the second electrode, the portions located on spaces between the plurality of light emitting elements; and an auxiliary electrode on the spacers and contacting the second electrode. | 2010-04-29 |
20100102714 | Red phosphorescent compound and organic electroluminescent device using the same - A red phosphorescent compound, includes a host material being capable of transporting an electron or a hole; and a dopant material represented by the following formula 1: | 2010-04-29 |
20100102715 | Organic light emitting diode display device and method of manufacturing the same - The OLED display device includes a substrate, a first electrode located on the substrate, a pixel defining layer located on the first electrode to expose a part of the first electrode, a fluorine-based polymer layer located on the pixel defining layer, an organic layer located on the first electrode, and a second electrode located on the entire surface of the substrate. The method of manufacturing the OLED display device includes forming a first electrode on a substrate, forming a pixel defining layer on the first electrode, forming a fluorine-based polymer layer on the pixel defining layer, patterning the fluorine-based polymer layer and the pixel defining layer by laser ablation to open a part of the first electrode, forming an organic layer on the opened first electrode, and forming a second electrode on the entire surface of the substrate. | 2010-04-29 |
20100102716 | Red color phosphorescent material and organic electroluminescent device using the same - A red phosphorescent compound, includes a host material being capable of transporting an electron or a hole; and a dopant material represented by following Formula 1: | 2010-04-29 |
20100102717 | DISPLAY PANEL AND FABRICATING METHOD THEREOF - A fabricating method of display panel is provided. A first substrate having display area and non-display area is provided. A pixel array and a spacer layer are respectively formed in the display area and non-display area by forming many first strip electrodes parallel to each other and on the substrate, by forming an organic function layer on the substrate and covering the first strip electrodes, and by forming many second strip electrodes parallel to each other and on the organic function layer. An extension direction of the first strip electrodes is different to that of the second strip electrodes. The spacer layer surrounds the display area. A sealant is formed in the non-display area, and the spacer layer is disposed between the sealant and the pixel array. A second substrate is arranged above the first substrate, and the first substrate and the second substrate are fixed by using the sealant. | 2010-04-29 |
20100102718 | ORGANIC EL DISPLAY - An organic EL display is provided which, even in the event of increasing the number of light emitting pixels in a scanning line direction, can suppress an increase in applied current and voltage along with an increase in duty ratio, and can increase the definition of a display section. An organic EL display including an organic EL element in which a functional organic layer having at least a light emitting layer between signal electrodes | 2010-04-29 |
20100102719 | Organic light emitting diode display and method for manufacturing the same - The present invention relates to an OLED display and a manufacturing method thereof, and the OLED display according to the present invention includes a display substrate including an OLED, a sealing member disposed opposite to the display substrate and covering the OLED, and a sealant interposed between the display substrate and the sealing member and that seals them to each other, and the sealant has a curved inner surface and an angular outer surface in at least one of corner areas of the display substrate and the sealing member. | 2010-04-29 |
20100102720 | ELECTRON TUBE - An electron tube of the present invention includes: a vacuum vessel including a face plate portion and a stem portion arranged facing the face plate portion; a photocathode arranged in the vacuum vessel and formed on the face plate portion; a projection portion arranged in the vacuum vessel, extending from the stem portion toward the face plate portion, and made of an insulating material; an electron detector arranged on the projection portion, made of a semiconductor, and having a first conductivity-type region and a second conductivity-type region; and a first conductive film covering a surface of the projection portion and to be electrically connected to the first conductivity-type region. | 2010-04-29 |
20100102721 | ELECTRON TUBE - An electron tube of the present invention includes: a vacuum vessel including a side tube portion made of glass and a plate-like member blocking one opening of the side tube portion and made of glass; a first metal film provided on an end face of the side tube portion; a second metal film arranged facing the first metal film and provided on a marginal part of a face at a vacuum side of the plate-like member; a third metal film provided on at least one of an outer wall face of the side tube portion adjacent to the end face and a side face of the plate-like member adjacent to the marginal part; and a metal member made of a low-melting-point metal, for sealing a gap between the side tube portion and the plate-like member while contacting the first metal film, the second metal film, and the third metal film. | 2010-04-29 |
20100102722 | PLASMA DISPLAY PANEL - A plasma display panel includes a front panel including a substrate, a display electrode formed on the substrate, a dielectric layer formed so as to cover the display electrode, and a protective layer formed on the dielectric layer; and a rear panel disposed facing the front panel so that discharge space is formed, and including an address electrode formed in a direction intersecting the display electrode and a barrier rib for partitioning the discharge space. The protective layer is formed by forming a base film on the dielectric layer and attaching a plurality of aggregated particles of a plurality of crystal particles of metal oxide to the base film so that a plurality of aggregated particles are distributed over the entire surface, and the base film is made of MgO containing Al. | 2010-04-29 |
20100102723 | PLASMA DISPLAY PANEL - A plasma display panel includes a front panel including a substrate, a display electrode formed on the substrate, a dielectric layer formed so as to cover the display electrode, and a protective layer formed on the dielectric layer; and a rear panel disposed facing the front panel so that discharge space is formed, and including an address electrode formed in a direction intersecting the display electrode and a barrier rib for partitioning the discharge space. The protective layer is formed by forming a base film on the dielectric layer and attaching a plurality of aggregated particles of a plurality of crystal particles of metal oxide to the base film so that a plurality of aggregated particles are distributed over its entire surface. | 2010-04-29 |
20100102724 | METHOD OF CONSTRUCTING CERAMIC BODY ELECTRODELESS LAMPS - A ceramic body electrodeless lamp and a method to produce the lamp are provided. In an example embodiment, the ceramic body electrodeless lamp may include an open tubular arm body, a filler rod formed to have an outer diameter sized to fit at least partially within an inner diameter of the open tubular arm body, and a frit material to form a seal between the open tubular arm body and the filler rod once the frit material is melted. | 2010-04-29 |
20100102725 | HIGH-VOLTAGE PULSE GENERATOR AND HIGH-PRESSURE DISCHARGE LAMP COMPRISING SUCH A GENERATOR - A compact high-voltage pulse generator based on a spiral pulse generator, the spiral pulse generator being in the form of an LTCC component part or HTCC component part including a ceramic film wound in the form of a spiral and metallic conductive paste applied thereto in strip form, wherein the spiral pulse generator acts as a transformer by virtue of a first metallic conductor being rolled up to form a spiral with n turns, where n is at least 5, while in addition a switch and a charging capacitor are connected to the start of the first metallic conductor. | 2010-04-29 |
20100102726 | ILLUMINATION APPARATUS AND MANUFACTURING METHOD THEREOF - An illumination apparatus includes a base and a C/U-shaped spiral fluorescence tube. The C/U-shaped spiral fluorescence tube is disposed on the base and has a first spiral part, a second spiral part and a C/U-shaped bending part. One end of the first spiral part connects to one end of the C/U-shaped bending part, and the other end of the first spiral part is disposed with an electrode. One end of the second spiral part connects to the other end of the C/U-shaped bending part, and the other end of the second spiral part is disposed with another electrode. | 2010-04-29 |
20100102727 | Regulating Circuitry For Automobile light systems - A regulating circuit for automobile light for outputting an elevated voltage to power an operation of a driving integrated circuit, comprises a first diode having its anode interconnected to an input of the power supply (forward biased) and interconnected to the first diode in serial (reverse biased) and then interconnected to a driving integrated circuit. The first diode is used to detect a maximum voltage input, and the second diode is used to restore its energy to the capacitor so as to keep the voltage output maintained in an elevated level. As a result, the regulating circuit can be used with all kinds of driving integrated circuit incorporated in the automobile headlight. | 2010-04-29 |
20100102728 | PLASMA JET IGNITION PLUG AND IGNITION DEVICE FOR THE SAME - The cavity of a plasma jet ignition plug is configured in a stepped shape; i.e., composed of a constricted portion and a diameter-increased portion ( | 2010-04-29 |
20100102729 | LIGHT EMITTING DIODE ASSEMBLY - A lighting assembly using light emitting diodes provides low leakage current that does not require an external ballast. The lighting assembly can replace a fluorescent tube light while providing a more comfortable and steady light source, consuming less power and with enhanced longevity. The lighting assembly includes a tube, a light emitting diode panel disposed within the tube, a circuit board disposed within the tube, and insulation disposed between the light emitting diode panel and the circuit board. At least a portion of the tube is translucent. The light emitting diode panel includes light emitting diodes, and the circuit board includes a driving circuit for driving the light emitting diodes. | 2010-04-29 |
20100102730 | LIGHT AND LIGHT SENSOR - An LED-based light tube for use in a conventional fluorescent fixture can feature a housing including a light transmitting portion. At least one electrical connector can be attached to the housing and configured for engagement with the conventional fluorescent fixture. At least one LED can be arranged to produce light in a direction toward the light transmitting portion. A sensor can be operable to detect a brightness level and output a corresponding signal. A controller can be in electrical communication with the at least one electrical connector and operable to control the at least one LED in response to the signal. | 2010-04-29 |
20100102731 | Current regulator and method for efficiency improvement of a LED display system - For efficiency improvement of a LED display system including a charge pump and a LED connected to either the voltage input terminal or the voltage output terminal of the charge pump, either one or both of two current regulators are enabled according to a voltage detected from the LED, for establishing a driving current for the LED. When the detected voltage is higher than a threshold, the first one of the current sources is enabled sole. When the detected voltage is lower than the threshold, the second one of the current sources is enabled sole, or both the current sources are enabled, or the current sources are alternatively enabled. | 2010-04-29 |
20100102732 | DRIVING LIGHT EMITTING DIODES - The present invention relates to a driver for a string (STi) of series arranged light emitting diodes (D | 2010-04-29 |
20100102733 | LED LIGHT STRING - A light emitting diode light string has a front plug, a rear socket and an LED assembly. The front plug has a first end, a second end and a resistor being mounted inside the front plug and connected to the first end. The rear socket has a first end and a second end. The LED assembly is electrically connected between the resistor and the second end of the rear socket and has multiple LEDs being connected in serial. Plastic package materials for sealing resistors are unnecessary. Therefore cost of manufacturing the LED light string is low. | 2010-04-29 |
20100102734 | LIGHT EMITTING DIODE DRIVER AND METHOD - Disclosed is a method and apparatus for controlling a plurality of Light Emitting Diodes (LEDs). A communications protocol is also provided, which comprises a START code, a first Command packet and at least one subsequent Command packet. An LED driver receives a signal according to the protocol, and separates the first Command packet from the signal and controls an LED associated with the LED driver in accordance with instructions in the first Command packet. The LED driver then outputs the remaining signal for use by one or more subsequent LED drivers. | 2010-04-29 |
20100102735 | LED LIGHT STRING WITH ZENER DIODES OR RESISTORS AS SHUNTS - A light string in one embodiment includes a plurality of lamps connected in series, each lamp having a shunt Zener diode; and a rectifier. An anode of the Zener diode of each lamp is connected to a cathode of the LED thereof, the cathode of the Zener diode of each lamp is connected to the anode of the LED thereof, the cathode of the Zener diode of the lamp proximate the rectifier is connected to a positive terminal of an output of the rectifier, and the anode of the Zener diode of the lamp distal the rectifier is connected to a negative terminal of the output of the rectifier. The Zener diodes are replaced by resistors in another embodiment. Hence, a burned out LED of one lamp will not adversely affect a normal operation of the light string. | 2010-04-29 |
20100102736 | COLOR-VARIABLE LED LIGHT, PARTICULARLY FOR LIGHTING THE INTERIOR OF VEHICLES - The invention relates to an LED light, particularly a reading or seat lamp for vehicles such as travel coaches or airplanes, said light being equipped with a housing ( | 2010-04-29 |
20100102737 | Device For Supplying Power To LED Diodes - A device for supplying diodes LED includes an electric bridge (ABHG) with input terminals (A, B) and output terminals (H, G), including diodes (DS | 2010-04-29 |
20100102738 | CIRCUIT ARRANGEMENT FOR OPERATING A VACUUM GAS DISCHARGE LAMP - A circuit arrangement for operating a low-pressure gas discharge lamp with a first and a second filament, between which a gas discharge can be formed, is provided. The circuit arrangement may include a device for generating an electrical potential which varies over time at a node, which is connected to the first filament via a first inductive element, and a half-circuit, which includes a switch, the first filament being electrically connected to the second filament when the switch of the half-circuit is closed, wherein a second inductive element is provided in the half-circuit. | 2010-04-29 |
20100102739 | CIRCUIT FOR CONTROLLING A FLUORESCENT LAMP, METHOD FOR OPERATING THE CIRCUIT, AND SYSTEM COMPRISING THE CIRCUIT - In various embodiments, a circuit for driving a fluorescent lamp is provided. The circuit may include a half bridge including a first switch and a second switch; a drive unit for driving the first switch and the second switch, it being possible for a predetermined state to be established using the drive unit, and it being possible for the driving of the first and the second switch to be modulated as a result of the predetermined state using the drive unit. | 2010-04-29 |
20100102740 | CONTROL CIRCUIT AND FLASH SYSTEM USING SAME - A control circuit is configured to control the charge and discharge of a flash unit. The flash unit includes an anode, a cathode, and a trigger electrode. The control circuit includes a charging circuit and a triggering circuit. One terminal of the charging circuit is coupled to a charging terminal and another terminal is coupled to the anode and the cathode. One terminal of the triggering circuit is coupled to a triggering terminal, another terminal is couple to the trigger electrode. The charging circuit includes a first capacitor coupled to the cathode and a second capacitor coupled to the anode. When the charging terminal receives a charging voltage and the triggering terminal receives a high-level voltage, three times charging voltage is formed between the anode and the cathode; then the flash unit generates a flash. | 2010-04-29 |
20100102741 | HIGH-VOLTAGE PULSE GENERATOR AND HIGH-PRESSURE DISCHARGE LAMP COMPRISING SUCH A GENERATOR - A compact high-voltage pulse generator based on a spiral pulse generator is provided, wherein the spiral pulse generator is in the form of an LTTC component part or HTCC component part including two ceramic films of a given width and a metallic conductor applied to each of said ceramic films, which conductors are wound together in spiral form, such that the edge of the films together forms an end face in the manner of a circular ring, the two conductors being electrically insulated from one another by at least one insulation means. | 2010-04-29 |
20100102742 | Electronic ballast - Provided is an electronic ballast including: a rectifier which rectifies alternating current (AC) power into direct current (DC) power; a power factor compensator which improves a power face of the DC power; an inverter which inverts the DC current into high frequency square wave power; and a resonant circuit which receives the high frequency square wave power from the inverter, adjusts impedance, transforms the high frequency square wave power into high frequency sine wave power, and outputs the high frequency sine wave power. | 2010-04-29 |
20100102743 | FLEXIBLE LED LIGHTING FILM - A lighting unit having a substrate, a light source coupled to the substrate, the light source being configured to generate light. The lighting unit further includes an optical layer positioned over the light source and arranged relative to the substrate to define a region between a top side of the substrate and a bottom side of the optical layer, and a light reflector coupled to the optical layer. The light reflector being structured to reflect at least a portion of the light generated by the light source toward the top side of the substrate, and further structured to define a plurality of light transmissive regions which individually permit transmission of at least a portion of the light generated by the light source. | 2010-04-29 |
20100102744 | SYSTEM FOR DRIVING A PLURALITY OF LAMPS - A system for driving a plurality of lamps may monitor the faults of the lamps by detecting the voltage variance of the first, second and third detecting resistors connected to the low voltage ends of the first and second secondary winding for providing the power to the lamps. | 2010-04-29 |
20100102745 | 190W POWER LIMITER CIRCUIT FOR LIGHTING EQUIPMENT - A 190 W power limiter circuit for lighting equipment includes a DC power supply unit employed to transform an AC power source into a low DC output voltage, a DC voltage regulator used to regulate the DC power supply unit for a micro controller unit, an AC synchronization unit utilized to receive a synchronization signal of an AC line frequency and an AC voltage variation that are sent to the micro controller unit to achieve a synchronous triggering with the AC line frequency for driving an AC lamp driver unit, and an AC current sensor unit used to induct AC of a load circuit and having a resistor, manganese copper, a semi-conductor IC or a current transformer, which is connected to AC lamps in series, able to create voltage inducting signals fed back to the micro controller unit to adjust a triggering angle of the AC lamp driver unit for keeping power consumption less than 190W despite the load change of the lamps. | 2010-04-29 |
20100102746 | LIGHT CONTROL SYSTEM WITH PWM DUTY CYCLE CONTROL USING CURRENT SIGNAL FEEDBACK - A light control system having a light emitting device to produce a pre-determined light output is disclosed. The light control system includes a power circuit in electrical communication with the light emitting device for transmitting an electrical current to the light emitting device for controlling the light output, a timing circuit in electrical communication with the power circuit, wherein the timing circuit generates a pre-determined timing sequence and regulates a duty cycle of the power circuit in response to the timing sequence, and a feedback circuit in communication with the light emitting devices and the timing circuit, wherein the feedback circuit is adapted to monitor an electrical characteristic of the light emitting devices and control the timing sequence of the timing circuit in response to the electrical characteristics of the light emitting devices. | 2010-04-29 |
20100102747 | UNIFIED 0-10V AND DALI DIMMING INTERFACE CIRCUIT - Systems and methods are disclosed that facilitate switching a lamp ballast between DALI and analog control states as a function of control state information stored prior to the ballast being powered of and control information received by an interface circuit for the ballast circuit. A depolarization circuit is coupled to the interface circuit and ensures consistent polarity across a rectifier circuit regardless of the polarity of two control wires coupled to a miswiring protection circuit in the interface circuit. In this manner, a single interface circuit provides dual 0-10V analog and DALI control for dimming a lighting device regardless of whether a wall-mounted controller coupled to the interface circuit is an analog or a DALI type controller, thereby mitigating a need to switch out a ballast circuit coupled to the lighting device when changing between DALI and analog type controllers. | 2010-04-29 |
20100102748 | Drive apparatus for a vacuum fluorescent display - A VFD drive apparatus in which the filament of a VFD is coupled at a first terminal to an input voltage derived from a voltage source, and at a second terminal to a shunt voltage regulator that establishes a regulated filament current and a regulated cutoff voltage with respect to ground potential. Other electrical loads such as drive circuitry for the anodes and grid of the display are coupled between the second terminal of the filament and ground potential so that at least a portion of the filament current is supplied to such other electrical loads. Power dissipated by the shunt voltage regulator is thereby reduced, and the cost associated with providing additional voltage regulators for the other electrical loads is avoided. | 2010-04-29 |
20100102749 | CIRCUIT ARRANGEMENT AND METHOD FOR ADAPTING THE OUTPUT OF HIGH-PRESSURE DISCHARGE LAMPS - A circuit arrangement for adapting the output of high pressure discharge lamps that is suitable for operating with an inductor is provided, wherein the circuit arrangement includes an electronic switch that is connected in parallel with the lamp, and this parallel circuit is arranged in series with the inductor, the circuit arrangement being arranged in the high pressure discharge lamp. | 2010-04-29 |
20100102750 | LIGHT EMITTING DIODE HAVING PROTECTION FUNCTION - The present invention relates to a light emitting diode driver having a protection function that activates hiccup mode for a predetermined period of time when a light emitting diode performs an abnormal operation to thereby protect the light emitting diode. A light emitting diode driver having a protection function according to an aspect of the invention may include: a light emitting unit emitting light; a reference signal generating unit generating a reference signal having pulses with a predetermined period when the light emitting unit performs an abnormal operation; a control unit controlling operating time in hiccup mode according to the reference signal from the reference signal generating unit, the hiccup mode where output is switched on and off at a predetermined period; and a driving unit driving the light emitting unit in the hiccup mode for the operating time determined by the control unit. | 2010-04-29 |
20100102751 | INTELLIGENT LIGHT FIXTURE FACILITATING UNIVERSAL LIGHT BULB - An intelligent light fixture facilitates the use of a ‘universal’ light bulb having a wattage rating. A lamp dimmer circuit disposed within the fixture is in electrical communication between the AC line and a socket. A bulb test circuit within the fixture is operative to determine the maximum wattage of the bulb. A controller, also within the fixture includes a wattage select input. The controller is operative to determine the maximum wattage of the bulb using the bulb test circuit, compare the maximum wattage to the wattage select input and, if the maximum wattage is greater than the wattage select input, control the dimmer circuit to ensure that the power delivered to the bulb does not exceed the wattage select input. The bulb test circuit may determine the maximum wattage of the bulb by measuring the resistance of the bulb's filament or alternatively, by temporarily impressing line voltage across the bulb and measuring the current drawn by the bulb's filament. Alternative embodiments provide a wattage dial disposed on an adapter unit or directly on the threaded base of a bulb. | 2010-04-29 |
20100102752 | CONTROL CIRCUIT AND METHOD FOR BACKLIGHT SOURCES, AND IMAGE DISPLAY APPARATUS AND LIGHTING APPARATUS USING THE SAME - In light emitting diode (LED) control, a plurality of duty cycle signals corresponding to a plurality of LEDs are stored in a dual-port memory by memory mapping. By sampling, the stored duty cycle signals are outputted to generate a plurality of parallel single-bit data each having one single bit. After the single-bit data are converted by a data transmission module, each bit of the single-bit data is serially outputted to a drive module to drive the LEDs. Thus, the ON duty cycles of the LEDs are modulated by pulse width modulation (PWM), light emitted from the LEDs are mixed in time-domain, and the brightness of the LEDs can be controlled. | 2010-04-29 |
20100102753 | Circuit Arrangement and Method for the Dimming Control of One or More Operating Device for Lamps - A circuit arrangement for dimming control of one or more operating devices ( | 2010-04-29 |
20100102754 | LED LAMP ASSEMBLY - An LED lamp assembly includes a lighting pole and an LED lamp mounted on the lighting pole. The lighting pole includes a holding cylinder, a plurality of light-guiding plates received in the holding cylinder and a light emitting member surrounded by the light-guiding plates. The holding cylinder defines a plurality of through holes in a circumference sidewall thereof. A sensor is connected to the LED lamp, whereby the LED lamp lightens only when an object moves approaching the LED lamp assembly. Each light-guiding plate is semitransparent. Light generated by the light emitting member partly transmits through a corresponding light-guiding plate and partly reflected thereby, whereby the lighting pole radiates an even light through the holes thereof. The lighting pole constantly radiates the even light during the operation of the LED lamp assembly. | 2010-04-29 |
20100102755 | Method for Controlling a Half-Bridge Circuit and Corresponding Half-Bridge Circuit - A circuit arrangement for operation of lamps, comprising a half-bridge arrangement which has an upper and a lower electronic switch (Q | 2010-04-29 |
20100102756 | APPARATUS FOR DRIVING LIGHT EMITTING DEVICE - An apparatus for driving a light emitting device according to an aspect of the invention may include: a DC/DC converter unit generating driving power on the basis of an input voltage and supplying the generated driving power to an anode of a light emitting unit including a plurality of light emitting devices; a current source controlling to keep current flowing through the light emitting unit constant; a feedback circuit unit detecting voltage at a cathode of the light emitting unit; and a feedback coupling circuit unit coupling the output of the feedback circuit unit and the input of the DC/DC converter unit to supply the input voltage of the DC/DC converter unit according to the voltage detected by the feedback circuit unit and an output voltage of the DC/DC converter unit. | 2010-04-29 |
20100102757 | HID Lamp Ballast with Controlled DC Step Down Circuit - An electronic ballast is provided for powering a high intensity discharge lamp. A voltage step-down circuit is arranged to reduce an input DC voltage. An inverter circuit includes at least one high frequency switching element is and arranged to convert the reduced voltage to a high frequency AC voltage. A resonant circuit receives the high frequency voltage and is further coupled to the discharge lamp. A voltage step-down control circuit controls the DC voltage output from the voltage step-down circuit. A driving circuit supplies a driving signal to the switching element of the inverter, and further adjusts a driving frequency of the driving signal, thereby controlling the high-frequency voltage. The high frequency voltage in a first operating mode is controlled to a low level wherein the lamp is prevented from starting. The high frequency voltage in a second operating mode is controlled to a high level wherein the discharge lamp can be started. | 2010-04-29 |
20100102758 | Illumination apparatus - An illumination apparatus includes a light source unit having solid light-emitting elements and a sensor unit having a wave transmission portion for transmitting energy waves of specified frequency and a wave reception portion for receiving the energy waves reflected from an object. The sensor unit outputs a detection signal by detecting the object within a detection range based on the difference in frequency between the transmitted and received energy waves. The illumination apparatus further includes a control unit responsive to the detection signal from the sensor unit for performing a control operation to turn on the light source unit, and a power source unit for supplying electric power to the light source unit. The power source unit is arranged outside the detection range of the sensor unit. The sensor unit is provided on the opposite side to the direction of light irradiated from the light source unit. | 2010-04-29 |
20100102759 | LIGHT SOURCE AND METHOD FOR OPERATING A LIGHTING SYSTEM - The invention relates to a light source for generating light having a spectral emittance in at least a part of the range of 380 nm to 780 nm, the light having a spectral power distribution E(λ) as a function of the wavelength λ, and a general color-rendering index Ra, wherein the ratio of the integral spectral power distribution over a first range of 575 nm≦λ≦650 nm to that of a second range of 380 nm≦λ≦780 nm is given by the relation: and wherein B | 2010-04-29 |
20100102760 | AUTOMATIC TIMING ADJUSTMENT SYSTEM FOR OCCUPANCY SENSORS - A lighting control system for a space equipped with lamps for illuminating the space comprises a power circuit for supplying power to the lamps, a controllable switch in the power circuit for turning the lamps on and off, an occupancy sensor for detecting motion within the space and generating a motion-detected control signal in response to the detection of such motion, and a timer for measuring a time-out interval following the generation of the motion-detected control signal by the occupancy sensor and producing a time-out control signal in response to completion of the measurement of the time-out interval. A processor receives the control signals from the occupancy sensor and the timer and produces a switch-off control signal for the controllable switch to turn the lamps off in response to the time-out control signal, modifies the time-out interval by a time-out offset value in response to preselected events, counts the number of times the switch-off control signal is produced, without the receipt of the motion-detected control signal, within a predetermined time following the end of the time-out interval, and decrements the time-out interval by the offset value in response to the count reaching a predetermined value. | 2010-04-29 |
20100102761 | Organic Radiation-Emitting Device, Use Thereof and a Method of Producing the Device - The invention discloses an organic radiation-emitting device which includes a substrate, and at least one radiation-emitting organic layer, which is arranged on the substrate between a first and a second electrode layer. A first charge carrier transport layer, which includes a first charge carrier transport material and a first salt, is arranged between the first electrode layer and the radiation-emitting organic layer. | 2010-04-29 |
20100102762 | POWER CONVERTER - An object of the invention is to provide a power converter that is capable of easily constituting a bidirectional power conversion system, and that can realize power regeneration. In a power converter in which cell power modules U | 2010-04-29 |
20100102763 | HYBRID WORKING MACHINE - In a hybrid excavator, a generator motor and a hydraulic pump are driven by using an engine as a power source. A battery is charged with power generated by the generator motor. A rotation motor is driven by the generator motor and the battery. The voltage of a DC bus is detected by a voltage sensor, and whether the battery is unusable is determined by a breakdown detector. When the battery becomes unusable, emergency evacuation control is performed so that the power consumption of the rotation motor will be suppressed to be less than or equal to the power generation of the generator motor while maintaining the DC bus voltage greater than or equal to the normal operation voltage of the system. | 2010-04-29 |
20100102764 | METHODS, SYSTEMS, AND DEVICES FOR A MOTOR CONTROL SYSTEM - Systems, devices, and methods for controlling a motor are disclosed. A method may include determining a rotational direction of a motor from a pair of quadrature signals sent to a microprocessor. The method further includes adjusting an internal count stored in the microprocessor at each edge of each of the pair of quadrature signals. The method further includes adjusting an external count stored in the microprocessor and transmitting an interrupt to a main controller after the first phase signal and the second phase signal have transitioned through each combinational logic state in one of a forward rotational direction and a reverse rotational direction. The method further includes transmitting a signal comprising the rotational direction of the motor and the external count from the microprocessor to a main controller. | 2010-04-29 |
20100102765 | FINE RESOLUTION MOTOR CONTROL - Methods and apparatus are provided for deriving precision position and rate information for motors using relatively low precision analog sensors, and for implementing compensation techniques that overcome inherent sensor errors and rotor magnet flux tolerances. | 2010-04-29 |
20100102766 | Brushless, Three Phase Motor Drive - A control method for a sensor-less, brushless, three-phase DC motor. A pulse-width modulation (PWM) duty cycle may be calculated. A voltage induced by rotation of a rotor may be sampled at a first expected zero crossing value to produce a first sampled voltage value. An average of a plurality of sampled voltage values, including voltage values sampled at a plurality of prior expected zero crossing values and the first sampled voltage value, may be calculated. The first sampled voltage value may be subtracted from the calculated average to produce a delta zero crossing error. The delta zero crossing error may be multiplied by a first constant representing electromechanical properties of the motor to produce a representation of an angular velocity. One or more time values may be generated based on the representation of the angular velocity. Operation of the motor may be controlled based on the one or more time values and the PWM duty cycle. | 2010-04-29 |
20100102767 | CONTROL APPARATUS FOR HYBRID DRIVE SYSTEM - A control apparatus for a hybrid drive system including a main drive power source, an electric generator, a wheel-side output shaft, a power distributing mechanism for distributing the drive force of the main drive power source to the electric generator, the wheel-side output shaft and an automatic transmission, and an electric motor connected to the wheel-side output shaft through the automatic transmission, the control apparatus including a motor-output limitation control device for implementing an output limitation of the electric motor according to a requirement for the output limitation, and a motor-output limitation inhibiting device to inhibit the output limitation of the electric motor by the motor-output limitation control device, during a shift-up action of the automatic transmission, or a motor-output increasing device to control the electric motor to increase its output so as to offset the output limitation of the electric motor implemented by the motor-output limitation control device according to a requirement for the output limitation during a shift-up action of the automatic transmission. | 2010-04-29 |
20100102768 | DETERMINING STUCK CONDITIONS FOR ELECTRIC MOTORS USING INDUCTIVE SENSING - A control system includes a position control module, a power control module, and a diagnostic module. The position control module applies a driving current for positioning a rotor of a motor at one of first and second positions. The power control module applies a first voltage to one of first and second phases of the motor to generate a first current after the position control module applies the driving current to position the rotor at the first position. The power control module applies a second voltage to one of the first and second phases to generate a second current after the position control module applies the driving current to position the rotor at the second position. The diagnostic module determines when the rotor is restricted from rotating based on the first and second currents. | 2010-04-29 |
20100102769 | DRIVING APPARATUS - A driving apparatus ( | 2010-04-29 |
20100102770 | ELECTRIC INJECTION MOLDING MACHINE - An electric injection molding machine includes a motor driving circuit for driving a motor, and a delivery pipe. The motor driving circuit includes a rectifier circuit, a switch control circuit, a heater, a direct current (DC) link circuit, and an inverter circuit. The switch control circuit is configured for controlling the motor to output a regenerative current generated in a deceleration period of the motor. The heater is configured for receiving the regenerative current to heat the delivery pipe via the switch control circuit. A micro control unit (MCU) outputs a heat control signal according to the voltage from the DC link circuit to turn on the switch control circuit so as control deceleration of the motor such that a regenerative current from the motor is supplied to the heater to heat the delivery pipe. | 2010-04-29 |
20100102771 | ENERGY SAVER DELAY CIRCUIT FOR AC INDUCTION MOTORS - A power control system for an A.C. induction motor is disclosed, comprising a voltage/current phase difference generator for determining a difference in phase between a voltage applied to the motor and a current drawn by the motor, and for generating a phase difference signal as a function of the determined difference in phase, the voltage/current phase difference generator including an integrator, the integrator receiving the phase difference signal and generating an error signal for controlling an amount of power supplied to the motor as a function of the phase difference signal, the integrator being electrically coupled to a potentiometer, the potentiometer providing a bias signal for at least partially controlling the error signal; and a delay circuit for controlling the bias signal provided by the potentiometer so as to cause full available power to be supplied to the motor for a predetermined amount of time. The potentiometer further comprises first and second outer terminals and a center tap terminal, the center tap terminal providing the bias signal. The delay circuit controls the resistance appearing across the first outer terminal and second outer terminal of the potentiometer for the predetermined amount of time. | 2010-04-29 |
20100102772 | System and Method for Storing and Releasing Energy - A power system includes a housing having a base and a handle, a battery; a charge controller, and an inverter. The power system further includes a chimney-like venting system for cooling the power system. The chimney venting system may have at least one opening near said base and at least one opening near said handle. | 2010-04-29 |
20100102773 | CIRCUITS AND METHODS FOR POWER CONVERSION - A power conversion circuit includes a solar panel and a power converter. The solar panel is operable for providing electric power having an output voltage. The power converter coupled to the solar panel is capable of selectively operating in a charging mode and a powering mode. The power converter transfers the electric power from the solar panel to a power source and maintains the output voltage at a threshold voltage in the charging mode. The power converter delivers power from the power source to a load in the powering mode. | 2010-04-29 |
20100102774 | Method and Apparatus for Handling a Charging State in a Mobile Electronic Device - In accordance with the teachings described herein, a method and apparatus for handling a charging state in a mobile electronic device is provided. A universal serial bus (USB) interface may be used for connecting the mobile device to a USB host. A processing device may be used to control operation of the mobile device and receive an enumeration acknowledgement signal from the USB host via the USB interface and generate an enable signal upon receiving the enumeration acknowledgement signal. The method and apparatus may further include a rechargeable battery, a battery charger, a timing circuit, and a battery charger enabling circuit. | 2010-04-29 |
20100102775 | Retractable Overhead Charging Cord Dispenser - The present invention is generally directed to a retractable overhead charging cord dispenser which has multi-positioning capability to provide plug-in electric power to PHEVs parked at various positions in a garage or the like. An illustrative embodiment of the retractable overhead charging cord dispenser includes an arm assembly, a cord guide arm carried by the arm assembly, a cord storage device provided in the arm assembly and a retractable charging cord extendable from the cord storage device and extending through and protruding from the cord guide arm. | 2010-04-29 |
20100102776 | CHARGING CONTROL APPARATUS FOR ELECTRICALLY POWERED VEHICLE, ELECTRICALLY POWERED VEHICLE, METHOD FOR CHARGING CONTROL FOR ELECTRICALLY POWERED VEHICLE, AND COMPUTER-READABLE RECORDED MEDIUM HAVING PROGRAM RECORDED THEREON FOR COMPUTER TO EXECUTE THE CHARGING CONTROL - An energy cost prediction unit predicts an energy cost for the next travel. A lifetime prediction unit uses a charge amount—lifetime map to predict the lifetime of a power storage device according to an amount of charge to the power storage device. A usage cost prediction unit predicts the cost of using the power storage device according to the amount of charge to the power storage device, based on the lifetime of the power storage device predicted by the lifetime prediction unit. The predicted cost associated with the amount of charge to the power storage device is indicated on a display device. In accordance with an instruction from a user, the power storage device is charged from a charging station. | 2010-04-29 |
20100102777 | DOCKING CHARGER FOR CHARGING A HAND HELD ELECTRONIC DEVICE WITH OR WITHOUT A PROTECTIVE COVER CASE FITTED THEREON - The embodiments relate generally to a docking charger for charging a hand held electronic device. The docking charger has a docking base formed with a reception area. The reception area has a shape and size to support and hold the hand held electronic device in a charging position when the protective cover case is fitted on the hand held electronic device. The docking charger also has a charger adapter formed to be removably fitted in the reception area of the docking base. The charger adapter has an interior chamber shaped and sized to directly support and hold the hand held electronic device in the charging position when the protective cover case is removed from the hand held electronic device. The docking charger has two working positions. In the first working position where the charger adapter is removed from the reception area of the docking base, the reception area is exposed to receive the hand held electronic device fitted with its protective cover case. In the second working position, the charger adapter is fitted inside the reception area of the docking base to directly receive the hand held electronic device free of its protective cover case. | 2010-04-29 |
20100102778 | CHARGING SYSTEM, CHARGER, AND BATTERY PACK - After the initial current set processing is performed, by which a feed amount of a charge current Ic by a charge current feed portion | 2010-04-29 |
20100102779 | System and method for controlling charging of battery of portable terminal - A portable terminal includes a charging control system. The system supplies electric power to the battery. If the battery is charged completely, the system stops charging the battery temporarily, adjusts the termination current, and then charges the battery to the preset second charge capacity. The system can recharge the battery if the battery of the second charge capacity under goes a natural discharge for a certain time period by a certain rate of the second charge capacity, for example, 1%, or if the maximum voltage corresponding to the second charge capacity drops by 1% of the maximum voltage. Therefore, the system can retail the maximum charged state of the battery. | 2010-04-29 |
20100102780 | TIMEKEEPER DEVICE FOR A LAPTOP COMPUTER STORAGE CABINET - A timekeeper device for a laptop computer storage cabinet includes a microprocessor. An operating module is electrically connected to the microprocessor for adapting to input a charging period data and start to charge a laptop computer. A gateway selection module is electrically connected to the microprocessor. The gateway selection module has multiple power sockets provided for plugging the multiple laptop computers. The gateway selection module is controlled by the microprocessor to selectively conduct the multiple power sockets. A charging selection module is electrically connected to the microprocessor. The charging selection module is controlled by the microprocessor and arranged to correspond to the multiple power sockets for selecting a power socket. A display module is electrically connected to the microprocessor for showing a charging period data by the operating module. | 2010-04-29 |
20100102781 | APPARATUS AND METHOD FOR CHARGING A BATTERY - The present invention relates to an apparatus and method for charging a battery cell according to a charging scheme. The apparatus comprises a power supply and control unit for delivering a charging current to the battery cell according to said scheme, a current monitoring device for monitoring and measuring the charging current, a voltage monitoring device for monitoring and measuring the voltage over the battery cell, a charging terminator devised for terminating the charging of the battery when a predetermined charging criteria is met and a safety timer for starting a predetermined time interval when charging of the battery cell has reached its constant voltage. The predetermined charging criteria is met either when the charging current is falling below a predetermined limit or when the charging current has not decreased a predetermined amount, ΔI, within the predetermined time interval. | 2010-04-29 |
20100102782 | METHOD FOR DISCHARGING CAPACITIVE LOADS - Methods for storing electrical energy discharged from a capacitive source, embodiments including developing a capacitive load in the source and closing a switch between the capacitive source and a voltage conversion block after an output voltage of the source both exceeds a threshold value and is detected to peak. The conversion block includes an inductor and the storage device connected in series and further may include a diode connected in parallel across the inductor and the storage device. Apparatus for storing electrical energy discharged from a capacitive source include embodiments having a capacitive source configured to produce an output voltage, a switch connected to the source, an inductor connected to the switch, a storage device connected to the inductor and a controller configured to close the switch after an output voltage of the source both exceeds a threshold value and is detected to peak. | 2010-04-29 |
20100102783 | Method and system to reduce accessory drive belt slip - A method and a system for reducing belt noise in an engine, wherein the belt is engaged with an alternator includes a transmission upshift detection module determining a transmission upshift or a quickly closing throttle detection module determining a quickly closing throttle. The control module further includes an engine speed prediction module determining a predicted engine speed in response to determining a transmission upshift and an engine deceleration prediction module determining a predicted engine deceleration when the predicted deceleration of the engine crankshaft is greater than a threshold. An alternator control module controls a rotor current in the alternator to add load to the alternator rotor to reduce potential belt noise. | 2010-04-29 |
20100102784 | Soft-Switching Voltage Regulation in a Step-Down Circuit - An information handling system may comprise a direct-current to direct-current step-down power converter, a memory, and a processor. The step-down power converter may include a first inductive unit, a first switching unit connected between a voltage source and the first inductive unit, a second switching unit connected to ground, a capacitance unit connected between the second switching unit and the first inductive unit, and a second inductive unit connected between the second switching unit and the first inductive unit. The capacitance unit is configured to delay a change in voltage across the first or second switching units, and the second inductive unit is configured to delay a change in current in the first or second switching units. | 2010-04-29 |
20100102785 | Transient Processing Mechanism for Power Converters - Hysteretic performance with fixed frequency may be achieved in controlling a power/voltage regulator, by adapting fixed frequency PWM (Pulse Width Modulation) to current-mode hysteretic control. In steady state, the current waveform may be inferred without having to measure the current. In current-mode control, the current may be adjusted proportional to the error voltage. The change in load current may be related to the change in duty-cycle, and the change in duty-cycle may be related to the error voltage, with the change in duty-cycle expressed as a function of the error voltage, to establish current-mode control. This current-mode control may be adapted to perform current-mode hysteretic, if instead of duty-cycle, the same duty-cycle or current shift was effected by a change in phase. A fraction of ripple current (Forc) may be defined as a specified fraction of the peak-to-peak ripple current, establishing a linear relationship between the Forc and the ripple current. | 2010-04-29 |
20100102786 | Circuit Arrangement for Reduced Switch Load - A circuit arrangement for two serially connected semiconductor switches connected to a voltage supply is provided. Between the semiconductor switches a primary winding of a transformer is connected. A first diode is connected on an anode side to a potential of the voltage supply at a source terminal of the second semiconductor switch and on a cathode side to a first connection terminal facing the first semiconductor switch on the primary winding. A second diode is connected on the cathode side to the potential of the voltage supply at a drain terminal of the first semiconductor switch and on the anode side to a second connection terminal facing the second semiconductor switch on the primary winding. A first secondary winding of the transformer is provided, connected in series between the first diode and the first connection terminal, and a second secondary winding, connected in series between the second diode and the second connection terminal. | 2010-04-29 |
20100102787 | CONTROLLED POWER SUPPLY AND METHOD FOR PULSE LOAD - A method for supplying bursts of substantially constant voltage to a switched load via a voltage reservoir. Based on a predetermined current that is to be sourced by the load during an active portion of a switching cycle, computing an average current that should be fed to the voltage reservoir during an inactive portion of the switching cycle to ensure that sufficient energy will stored in the voltage reservoir to supply the load without completely draining the voltage reservoir. Supplying continuous energy to the voltage reservoir at a substantially constant current equal in magnitude to said average current. | 2010-04-29 |
20100102788 | DC-DC CONVERTER - A DC-DC converter including, an inductor; and a driving switching element for performing switching to a flow path to flow an electric current through the inductor; wherein the DC-DC converter drives the driving switching element by PWM control using a PWM control pulse to convert a direct-current input voltage supplied from a direct-current power source and to output a direct-current voltage having a piece of electric potential different from that of the direct-current input voltage, and wherein the DC-DC converter drives the driving switching element by the PWM control under a first condition, and the DC-DC converter makes the driving switching element be in an on-state continuously while the output direct-current voltage is lower than a desired level under a second condition. | 2010-04-29 |
20100102789 | SWITCH-MODE POWER SUPPLY METHOD AND APPARATUS USING SWITCH-NODE FEEDBACK - Example switch mode power supplies, including buck converters, with indirect, switch-mode feedback for pulse width modulation and duty cycle control are described and shown. Non-idealities are corrected with several example compensation methods and apparatus, including current sense and corresponding voltage adjustment. | 2010-04-29 |
20100102790 | Optimizing delivery of regulated power from a voltage regulator to an electrical component - Methods, apparatus, and products for optimizing delivery of regulated power from a voltage regulator to an electrical component, operation of the voltage regulator controlled by a service processor, the voltage regulator including a number of phases, each phase rated to deliver a different maximum power to the electrical component, where optimizing delivery of regulated power includes determining, by the service processor, the present power requirements of the electrical component, and enabling, by the service processor, one or more phases of the voltage regulator in dependence upon the present power requirements of the electrical component. | 2010-04-29 |
20100102791 | AUXILIARY TURN-ON MECHANISMS FOR REDUCING CONDUCTION LOSS IN BODY-DIODE OF LOW SIDE MOSFET OF COUPLED-INDUCTOR DC-DC CONVERTER - An embodiment of a power-supply controller includes first and second circuits. The first circuit is operable to cause a first current to flow through a first phase of a power supply. And the second circuit is operable to cause the second phase of the power supply to operate in a reduced-power-dissipation mode for at least a portion of a time period during which a second current magnetically induced by the first current flows through the second phase. | 2010-04-29 |
20100102792 | APPARATUS, SYSTEM, AND METHOD FOR A POWER SUPPLY THAT OPERATES EFFICIENTLY AT HIGH AND LOW LINE INPUT - An apparatus for efficient power supply operation variable input line voltages. The apparatus includes a detection module that senses the input line voltage to the power supply and determines whether it is high or low voltage. A turn module sets the turns ratio of the transformer to a first turns ratio if the input line voltage is low voltage. The turn module sets the turns ratio to a second turns ratio if the input line voltage is high. In one embodiment of the invention, a high voltage is between 180 and 250 volts, while a low voltage is between 90 and 130 volts. A primary module sets the boost voltage of the power supply's boost stage to a first voltage if the input line voltage is low, while it sets the boost voltage to a second voltage if the input line voltage is high. The first voltage may, for example, be 200 volts, and the second voltage 400 volts. | 2010-04-29 |
20100102793 | APPARATUS, SYSTEM, AND METHOD FOR AN INTEGRATED BIAS AND STANDBY POWER SUPPLY CIRCUIT - An apparatus, system, and method are disclosed for efficiently providing bias voltages. A first switching regulator stage that includes an inductor receives an input voltage and provides as an output an intermediate regulated output voltage. A second switching regulator stage receives as input the intermediate regulated output voltage and outputs a regulated main output voltage. The second switching regulator stage includes at least one switch controller that provides one or more signals to one or more switches in the second switching regulator stage to regulate the main output voltage of the second regulator stage. A secondary bias module utilizes a secondary winding coupled with the inductor of the first regulator stage to provide a secondary bias output voltage to the switch controller of the second switching regulator stage. The secondary bias output voltage is referenced to the main output voltage of the second switching regulator stage. | 2010-04-29 |
20100102794 | BANDGAP REFERENCE CIRCUITS - A bandgap reference circuit is provided. An input node receives a supply voltage. An output node provides a reference voltage. A first transistor is coupled between the input node and the output node and has a first control terminal. A resistor is coupled between the input node and the first control terminal. A second transistor is coupled to the first control terminal and has a second control terminal coupled to the output node. A third transistor is coupled between the second transistor and a ground terminal and has a third control terminal. A voltage dividing unit provides a first voltage and a second voltage according to the reference voltage. A differential amplifier provides a signal to the third control terminal according to a difference between the first and second voltages. | 2010-04-29 |
20100102795 | BANDGAP VOLTAGE REFERENCE CIRCUIT - A voltage reference circuit includes an operational amplifier, an output P-type MOS transistor, a first resistor, a first BJT, a second BJT, a third resistor, and a plurality of output resistors connected in series. A gate of the output P-type MOS transistor is electrically connected to an output end of the operational amplifier, and a drain of the output P-type MOS transistor is electrically connected to a voltage source. The gate of the output P-type MOS transistor is controlled by the output end of the operational amplifier, so that the drain current of the output P-type MOS transistor can match the current of the first resistor, the third resistor, and the plurality of output resistors connected in series. | 2010-04-29 |
20100102796 | STATE DETECTION DEVICE FOR DETECTING OPERATION STATE OF HIGH-FREQUENCY HEATING APPARATUS - An operating state detection technique is provided which makes it possible to accurately detect an abnormality of a high-frequency heating apparatus. An anode current detected by the anode current detection resistor | 2010-04-29 |