Electric lamp and discharge devices: systems inventions 08/07

20070200506 - Microwave tube: An output power adjusting mechanisms for adjusting output power is provided on a wave guide of a high frequency output section coupled to an output cavity. The output power adjusting mechanisms is located at a position apart away from the output cavity by a distance of ⅛ wavelength or [(⅛... Agent: Pillsbury Winthrop Shaw Pittman, LLP

20070200507 - Device for driving light source module: A driving device for driving a light source module (34) includes a power stage circuit (31), a transformer and resonance circuit (32), a current balancing circuit (33), a voltage sensing circuit (35) and a PWM controller (37). The power stage circuit converts a received direct current (DC) signal to an... Agent: PCe Industry, Inc. Att. Cheng-ju Chiang Jeffrey T. Knapp

20070200508 - Low noise electroluminescent lamp (el) driver and method therfor: An EL driver circuit has a full H-bridge circuit. A boost converter is coupled to the full H-bridge circuit. The boost converter is pulse width modulated to generate a gradual increase in voltage to be applied to the full H-bridge circuit to drive an EL lamp.... Agent: Weiss & Moy PC

20070200509 - Method for prolonging life span of planar light source generating apparatus: A method for prolonging the life span of a planar light source generating apparatus is provided. The planar light source generating apparatus forms an emitting layer not only on a plurality of cathodes but on a plurality of gates as well. Moreover, an anode of the planar light source generating... Agent: J.c. Patents, Inc.

20070200510 - Arc lamp improvements: An arc lamp power supply with a first part including a converter adapted to convert a low voltage power supply to provide an arc running power supply suitable for running an arc lamp after an arc has been struck; a second part adapted to receive an output of said arc... Agent: Osha Liang L.L.P.

20070200511 - Driving device for discharge lamps and voltage detection circuit used therein: A voltage detection circuit includes a voltage obtaining circuit for transforming an AC signal into a voltage signal, an over-voltage detection circuit connected to the voltage obtaining circuit, and an under-voltage detection circuit connected to the voltage obtaining circuit. The over-voltage detection circuit is for determining whether the AC signal... Agent: PCe Industry, Inc. Att. Cheng-ju Chiang Jeffrey T. Knapp

20070200513 - Drive device of color led backlight: The drive device for driving the color LED backlight which includes a plurality of color LED arrays includes a voltage detecting unit for detecting a voltage applied to the color LED backlight, a temperature detecting unit for detecting a temperature of the color LED backlight, a control unit for controlling... Agent: Lowe Hauptman Berner, LLP

20070200512 - Semiconductor chip for driving light emitting element, light emitting device and lighting equipment: A light emitting device is provided to correctly detect a temperature of a light emitting element, and to prevent breakdown or deterioration of the light emitting element. The light emitting device of the invention includes a light emitting element having an electric signal terminal, that is driven by an electric... Agent: Greenblum & Bernstein, P.L.C

20070194718 - Light control fluorescent lamp and circuit thereof: A light control circuit for use in light control fluorescent lamps comprises a filter and rectifier circuit (1), a frequency control and resonant circuit (2) and an ambient brightness signal sampling and control circuit (4); wherein the ambient brightness signal sampling and control circuit (4) advantageously adopts an integrated circuit... Agent: Rabin & Berdo, PC

20070194719 - Illumination device: An illumination device is described that includes a light source that is an organic light-emitting diode and a control device capable of adjusting the current through the organic light-emitting diode, which increases current as the electric resistance of the organic light-emitting diode increases.... Agent: Fish & Richardson P.C.

20070194720 - Illumination control circuit: A light emission element FL, a driving element 5 for driving the light emission element FL, and a compensation unit 8 are connected in series with respect to a power source voltage Vcc. Further, a reference unit 6 for generating a constant voltage Vz and a detecting unit 7 are... Agent: Arent Fox PLLC

20070194721 - Electronic lighting ballast with multiple outputs to drive electric discharge lamps of different wattage: A number of elements are integrated within an electronics enclosure. A non-inverting buck-boost converter is to operate in the continuous conduction mode designed to provide an average power of more than 200 watts at its DC output. A power bus is coupled to the DC output. Multiple inverter circuits are... Agent: Blakely Sokoloff Taylor & Zafman

20070194724 - Power supply apparatus: A rectifying circuit (18) converts inputted AC power to DC power. An inverter circuit (22) converts the DC power to high-frequency power in accordance with a switching control signal applied thereto from a control circuit (50). A voltage transformer (24) voltage-transforms the voltage of the high-frequency power. An output-side rectifying... Agent: Duane Morris, LLPIPDepartment

20070194722 - Maintenance free emergency lighting: An emergency lighting device comprises an illumination lamp for illuminating an area and an energy storage unit for providing electrical energy for powering the lamp. According to the invention, the energy storage unit comprises an ultra-capacitor for storing the electrical energy. As the ultra-capacitor shows hardly any deterioration over time,... Agent: Philips Intellectual Property & Standards

20070194723 - Method and circuit arrangement for operating a discharge lamp: A method and a circuit arrangement for operating a discharge lamp, in particular during the first hours of operation after lamp manufacture, are described. The method and the circuit arrangement are provided in particular for high-pressure gas discharge lamps (HID or high intensity discharge lamps or UHP or ultra high... Agent: Philips Intellectual Property & Standards

20070194725 - Automobile lighting pulse width modulation duty cycle control with voltage and temperature compensation: An automobile circuit includes a power source, a temperature sensor outputting temperature measurement data, a voltage sensor outputting system voltage measurement data, a voltage adjusting module configured to receive the temperature measurement data and the voltage measurement data, and responsive thereto, to output a pulse width modulation signal, a switch... Agent: General Motors Corporation Legal Staff

20070194726 - Lamp driving apparatus and liquid crystal display including the same: A lamp driving apparatus includes a lamp driving unit which is provided with a predetermined direct current (“DC”) voltage from an external source, converts the provided DC voltage into a first lamp driving voltage and a second lamp driving voltage, and provides the first lamp driving voltage and the second... Agent: Cantor Colburn, LLP

20070188104 - Methods and apparatus for generating strongly-ionized plasmas with ionizational instabilities: A strongly-ionized plasma generator includes a chamber for confining a feed gas. An anode is positioned inside the chamber. A cathode assembly is positioned adjacent to the anode inside the chamber. An output of a pulsed power supply is electrically connected between the anode and the cathode assembly. The pulsed... Agent: Rauschenbach Patent Law Group, LLC

20070188107 - Discharge lamp lighting device and projector: A high pressure discharge lamp lighting device includes: a DC power supply circuit that is supplied with a DC voltage and performs current control to supply a predetermined constant power to a high pressure discharge lamp; an inverter that converts an output current of the DC power supply circuit into... Agent: Oliff & Berridge, PLC

20070188106 - Fixed lamp frequency synchronization with the resonant tank for discharge lamps: Control methods and apparatus are disclosed for operating a full-bridge inverter at resonant frequency mode, hybrid frequency mode, and fixed frequency mode. The operating frequency of the inverter equals to the user programmed frequency if the user programmed frequency is above the resonant tank frequency; and the operating frequency is... Agent: Perkins Coie LLP Patent-sea

20070188105 - Method of determining a zero point of a current sensor: The invention relates to a method of determining a zero point (V0) of a current sensor in a circuit arrangement for operating a gas discharge lamp. The invention is characterized by the following process steps: the current (11) through the sensor is switched off for a short period during a... Agent: Philips Intellectual Property & Standards

20070188108 - Device for driving a light source module: A driving device for driving a light source module (32) includes a switch circuit (30), a transformer circuit (31), a voltage sensing circuit (34), a current sensing circuit (35), and a PWM controller (33). The switch circuit converts a received direct current (DC) power signal to an alternating current (AC)... Agent: Morris Manning Martin LLP

20070188109 - Discharge lamp ignition device: To provide a discharge lamp ignition device to light high-intensity discharge lamps in which, during alternating current ignition, the fluctuation of luminous flux on the reversal of polarity of the voltage impressed on the lamp is minimized and in which steady lighting characteristics of the discharge at startup are secured,... Agent: Roberts, Mlotkowski & Hobbes

20070188113 - Discharge lamp lighting apparatus and projector: In a lamp lighting apparatus for lighting a high intensity discharge lamp, which is used for a projector, it is possible to carry out high speed modulation of brightness of the discharge lamp, in synchronization with a conversion operation to sequential color light flux which is carried out by using... Agent: Rader Fishman & Grauer PLLC

20070188112 - Led driving apparatus: An apparatus for driving an LED is provided. The driving apparatus may have an LED unit including at least one LED, and a current controlling unit for controlling the magnitude of current flowing through the LED unit in response to a control signal. The LED driving apparatus may include a... Agent: Roylance, Abrams, Berdo & Goodman, L.L.P.

20070188110 - Dimming mode selecting circuit and driving device using the same: A dimming mode selecting circuit (25) includes a switch circuit (251) and a compensation circuit (252). The switch circuit selects a first input voltage or a second input voltage according to an input signal. The compensation circuit connects to the switch circuit, for compensating voltage loss of the first input... Agent: PCe Industry, Inc. Att. Cheng-ju Chiang Jeffrey T. Knapp

20070188111 - Electronic ballast having adaptive frequency shifting: An electronic ballast for driving a gas discharge lamp avoids mercury pumping in the lamp by adaptively changing an operating frequency of an inverter of the ballast when operating near high-end. The inverter of the ballast generates a high-frequency AC voltage, which is characterized by the operating frequency and an... Agent: Lutron Electronics Co., Inc. Mark E. Rose

20070188114 - Methods and apparatus for high power factor controlled power delivery using a single switching stage per load: Methods and apparatus for high power factor power transfer to a load using a single switching stage. In exemplary implementations, a controllable variable power may be delivered to a load using a single switching stage while maintaining high power factor, in some cases without requiring any feedback information relating to... Agent: Wolf Greenfield & Sacks, P.C.

20070188115 - Backlight module having a chambered circuit board: The backlight module includes a first lamp, a second lamp, a circuit board and a driving circuit board. The circuit board includes chambers to be connected to the first lamp and the second lamp, and capacitors to stabilize a voltage across two ends of each of the first lamp and... Agent: Trop Pruner & Hu, PC

20070182336 - Directly connected magnetron powered self starting plasma plume igniter: An igniter for use in aircraft gas turbine and rocket engines that derives its energy from a directly connected magnetron. The igniter is intended to be mounted exterior of the engine, and to protrude into the engine's combustion chamber. The magnetron energy is conductively connected to one end of a... Agent: Saul Epstein

20070182337 - Increasing reliability of operation of light emitting diode arrays at higher operating temperatures and its use in the lamps of automobiles: A lamp in which a LED array is coupled to a transistor such that the same amount of current flows through both. The voltage level at the control (e.g., base) terminal of the transistor is controlled such that the current magnitude is reduced when the operating temperature rises. As a... Agent: Honeywell International Inc.

20070182338 - Current regulator for modulating brightness levels of solid state lighting: An exemplary embodiment provides a current regulator for controlling variable brightness levels for solid state lighting. The current regulator is couplable to a phase-modulating switch, such as a dimmer switch, which is coupled to an AC line voltage. An exemplary current regulator includes a rectifier; a switching power supply providing... Agent: Gamburd Law Group LLC

20070182339 - High frequency driver for gas discharge lamp: A high frequency driver for a gas discharge lamp is supplied with a DC voltage. The driver converts the input DC voltage to an AC voltage and supplies the AC voltage to a load, which comprises a gas discharge lamp, an inductor connected in series with the lamp and a... Agent: Philips Intellectual Property & Standards

20070182340 - Fluorescent tube electronic rectifier: The present invention is to provide a fluorescent tube electronic rectifier which comprises an inverter circuit and an inductance rectifier wherein the inverter circuit has an output end to be connected to one end of a fluorescent tube and the inductance rectifier has also an output end to be connected... Agent: Lowe Hauptman Berner, LLP

20070182341 - Discharge lighting bulbs control system: A device comprising energy saving circuitry incorporated within lighting systems of the type utilizing discharge lamps, wherein the circuitry includes at least one transformer having a primary and secondary windings oppositely wound to establish different fields of polarity. The primary winding is connectable across a supply voltage and the secondary... Agent: Malloy & Malloy, P.A.

20070182342 - Lcd backlight driver: Three example inverter designs are described that can be tailored to drive from one to dozens of lamps of a backlight for a liquid crystal display. For each design the lamps are driven by a 40 kHz to 60 kHz sine wave. The lamp voltage is ˜1200V to “strike” the... Agent: Texas Instruments Incorporated

20070182343 - Lamp driving apparatus for a display: A lamp driving apparatus wherein a plurality of two-winding balance circuits are connected to a plurality of parallel-connected lamp groups so that all of the lamps may be illuminated even though ambient conditions cause some of the lamps to have low resistance. Capacitors are connected to first electrodes and certain... Agent: Macpherson Kwok Chen & Heid LLP

20070182344 - Lamp driver providing synchronization during commutation: A lamp driver having two independently operating half-bridges integrated as a down-converter (1) and one as an alternator (2). Ensures that current control and inversion can be performed in a single stage, thereby providing synchronization at commutation moment. May comprise detection means (15, 18) for detecting a defined state of... Agent: Philips Intellectual Property & Standards

20070182345 - Monitor and power circuit thereof: A monitor and a power circuit thereof. The monitor includes a power circuit and a lamp. The power circuit driving the lamp to emit light includes an AC-to-DC converter, a transformer, a switch, a pulse width modulation (PWM) unit, a DC filter and a Royer circuit. The AC-to-DC converter receives... Agent: Rabin & Berdo, PC

20070182346 - Current regulator for multimode operation of solid state lighting: m

20070182347 - Impedance matching circuit for current regulation of solid state lighting: Exemplary embodiments provide an impedance matching circuit for providing variable power from a dimmer switch having a triac to a switching power supply couplable to solid-state lighting. An exemplary impedance matching circuit includes a first resistor coupled to receive a first current from the switching power supply; a second resistor;... Agent: Gamburd Law Group LLC

20070176561 - Electrical energy discharge control: Systems and methods presented herein provide for the control of electrical energy discharge from an electrode. In this regard, a sensor detects electrical energy discharged from the electrode and generates an electronic signal representative of a detected electrical energy discharge. Such a sensor may detect an electric field and/or light... Agent: Attn: Gregory T. Fettig Mfb Law

20070176562 - Power supply circuit for plasma generation, plasma generating apparatus, plasma processing apparatus and plasma processed object: A power supply circuit for plasma generation by which a large quantity of generated plasma can be smoothly obtained without increasing the sizes of an apparatus, a plasma generating apparatus, a plasma processing apparatus which can process a large quantity of objects to be processed at a low cost by... Agent: Koda & Androlia

20070176563 - Organic light emitting display device and a method of manufacturing thereof: Discloses is an organic light emitting display device including a first substrate divided into a pixel region and a non-pixel region. An organic light emitting element includes a first electrode, an organic thin film layer and a second electrode formed in the pixel region. A scan driver and a metal... Agent: Knobbe Martens Olson & Bear LLP

20070176564 - Voltage fed inverter for fluorescent lamps: A ballast operates lamps each including a pair of electrodes. A high frequency resonant circuit generates a high frequency bus, the resonant circuit is configured for operational coupling to the electrodes of each lamp, and includes a resonant inductor and a resonant capacitance.... Agent: Fay Sharpe LLP

20070176565 - Power supply apparatus for discharge lamp and control method for the same: An apparatus supplies power to at least one discharge lamp. The apparatus includes a buck converter for regulating power supplied to at least one discharge lamp having a switching element driven by PWM pulses, and a control unit for supplying PWM pulses to the buck converter. The control unit includes... Agent: Buchanan, Ingersoll & Rooney PC

20070176566 - Inverter with dimming function: A control circuit for an inverter for driving a fluorescent lamp includes a first triangular wave signal generator for use in analog dimming control, and a second triangular wave signal generator for use in burst dimming. The first triangular wave signal generator oscillates at a frequency higher than that of... Agent: Cantor Colburn, LLP