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Matches 701 - 750 out of 32,970

Document Document Title
WO/2010/015498A1
The invention relates to a high-voltage pulse generator based on a spiral pulse generator, wherein the spiral pulse generator is designed as an LTCC component and wound of at least two ceramic layers and at least two metal-containing lay...  
WO/2010/013166A1
A gas discharge lamp driver and method including a driver (1) for a gas discharge lamp (2) having driver output terminals (3; 4); a lamp current generating section (10) operable to generate a low frequency voltage from a DC voltage, the ...  
WO/2010/009574A1
A lighting system comprises a plurality of separate lamps (1). Each lamp comprises a plurality of light units (21) arranged in an array. The light beams of substantially each pair of adjacent light units in a lamp overlap each other. Eac...  
WO/2010/007985A1
A lighting device comprises a lighting circuit, a modulated-light signal circuit (RSFF1) and a feed-forward control circuit (FF). The lighting circuit receives, as an input thereof, an output (VDC) obtained by rectifying and smoothing a...  
WO/2010/006913A1
The invention relates to a high pressure discharge lamp (10) in a video projection device (14), that is supplied with current by an electronic ballast unit (12), that can be reactivated as quickly as possible after being switched off, an...  
WO/2010/007557A1
The invention describes a method of driving a gas-discharge lamp (1) enclosing a pair of electrodes (3, 4), wherein, during a normal mode of operation, the lamp (1) is driven according to a stabilisation driving scheme, which stabilisati...  
WO/2010/006640A1
The invention relates to the alternating current operation of a discharge lamp. Using a direct current component that is different from zero of the alternating current, a temperature difference of the electrodes is reduced, particularly ...  
WO/2010/004821A1
The lighting device (12) is equipped with multiple lamps (17) and a capacitor (30) connected in series with each of the aforementioned lamps (17). A first capacitor (C1) and a second capacitor (C2) are incorporated inside the capacitor (...  
WO/2010/003570A1
The invention relates to a method for operating an amalgam lamp, wherein the amalgam lamp has an emitter tube that is filled with inert gas, wherein the amalgam is heated in the emitter tube by means of an external energy source, and the...  
WO/2010/005026A1
Disclosed is a light emitting device comprising a gastight container (1), a gas, an electron source (2), an anode electrode (3), a control unit (5) and a fluorescent element (4). The gastight container has a gastight property. The gas ...  
WO/2010/002511A1
A lamp assembly includes a housing that selectively receives a removable, plug-in high intensity discharge (HID) lamp. A transformer and electrical circuit are received in the housing for providing an instant start, hot re-strike ignitio...  
WO/2010/000562A1
The high-pressure discharge lamp has a metal halide filling, using iodine or bromine as halogen. In addition, inert gas and Hg are used, wherein the cold filling pressure of the inert gas is in the range of 4 bar to 8 bar. Such a lamp is...  
WO/2010/001441A1
An adaptor with a dimming function has a load power adjustment switch for adjusting load power to be supplied from a power source to an illumination lamp for lighting the illumination lamp and a dimming control part for controlling the l...  
WO/2010/002612A2
A ballast used with an input power source for energizing a lamp. The ballast includes a power stage, a controller, an internal power supply for the power stage and the controller, and an input switch. The power stage energizes the lamp w...  
WO/2010/000349A1
The invention relates to detecting a lamp type and setting of operating parameters for operating luminous elements depending on the type of luminous element detected, comprising the following steps: Constant regulating of the power fed t...  
WO/2010/002279A1
A lamp which includes : a fluorescent light source; and a housing in which the light source is retained; wherein the housing encloses an electronic ballast including a transformer capable of raising an input voltage of between 9-14 volts...  
WO/2010/002132A2
The present invention relates an AI dimming stabilizer and a dimming method thereof. The AI dimming stabilizer memorizes sunrise time and sunset time based on the local time in Seoul, Korea (for example) and turns a light on and off 30 m...  
WO/2009/158312A1
An electrode-less plasma lamps, comprising generally of a bulb containing a gas-fill that is excited to produce light using radio-frequency (RF) energy. In specific embodiments, the use of grounded coupling-elements with integrated bulb ...  
WO/2009/157223A1
Stable light quantity adjustment is performed with high resolution without increasing clock frequency. A light source device (1) is provided with a plurality of light emitting elements (2); an irradiation optical system (4) for irradiati...  
WO/2009/158334A2
A ballast (10) for powering one or more gas discharge lamps (30,40) includes an inverter (100), an output circuit (200), a filament heating control circuit (300), and a control circuit (500). During a lamp filament detection period prior...  
WO/2009/158330A2
A ballast (10) for powering one or two gas discharge lamps (30,40) includes an inverter (100), an output circuit (200), and a control circuit (500). During a period prior to startup of inverter (100), control circuit (500) monitors a sig...  
WO/2009/156560A1
A device including a first electrical conductor, a second electrical conductor, dielectric material connecting the first and second conductors to each other, and an output or ground terminal section. The first electrical conductor has a ...  
WO/2009/152664A1
An annular electrodeless fluorescent lamp assembly with a lamp head (12) comprises two power couplers (13), a lamp head (12) and at least one capacitor (15). The two power couplers (13) are connected to two down-leads of the lamp head (1...  
WO/2009/153030A1
In conventional methods for operating a mercury low-pressure lamp having a lamp envelope in which two electrodes are disposed, a gas discharge is created by means of applying a constant lamp current, said discharge achieving a target val...  
WO/2009/154180A1
Increase in costs is avoided and general-purpose properties are improved when connecting external devices such as a human body detection sensor, an illuminance sensor, a dimmer and controlling illumination. An illumination lighting devic...  
WO/2008/116561A9
The invention relates to a control circuit (12) for an operating device for lighting devices (9), wherein a return signal is supplied to an input of the control circuit (12) by the lighting device (9), and the control circuit (12) has an...  
WO/2009/149556A1
This invention provides an electronic ballast for a fluorescent lamp, including a rectifier for converting an alternating current input voltage into a direct current output voltage, and a circuit including a combined power factor correct...  
WO/2009/149763A1
The invention relates to a method for operating at least one light source, wherein the input voltage is converted into an alternative output voltage, the alternative output voltage operating at least one light source and the frequency of...  
WO/2009/151941A1
The electronic ballast comprises a series half bridge resonant inverter and a control circuit for the inverter with dimming capability. The inverter includes a first and a second voltage feedback circuits including first and a second cha...  
WO/2009/147946A1
Provided is liquid crystal display device which can suppress a beat sound even when installed in a different condition. The liquid crystal display device (10) includes a light adjustment control unit (31) which controls light adjustment ...  
WO/2009/146934A2
The invention relates to a method for lamp type detection of a lamp (LA) of a load circuit (5) connected to an operating device, wherein the operating device comprises a power factor correction, or PFC, circuit (3) controlled by a switch...  
WO/2009/147562A2
An electronic ballast and fault protection method including an electronic ballast receiving DC power, the electronic ballast including a resonant transformer circuit 20 operably connected to receive the DC power and produce AC power, the...  
WO/2009/146201A1
An illumination apparatus for use with a machine vision camera comprises at least one light source, preferably one or more LEDs, and control circuitry. The control circuitry is operative to receive an illumination command signal and sele...  
WO/2009/145145A2
Disclosed is a device for generating simulated solar light, wherein a switching system is adopted that makes it possible to provide a larger amount of power, that makes it possible to measure the I-V characteristic of a solar battery acc...  
WO/2009/143671A1
A full digital high intensity xenon lamp controller and control method. The full high intensity xenon lamp is connected with a high voltage transformer and a xenon lamp, which including a DC/AC inverted circuit and a main control unit. T...  
WO/2009/145108A1
Provided is a small, low-cost device for operating a discharge lamp. The operating device can reduce the glare at the time of start-up, suppress the uncomfortable feelings at the time of launching a beam of light, and easily reduce the ...  
WO/2009/145050A1
The device comprises a DC power supply circuit (1) that converts the voltage from an AC power supply (AC) into DC voltage; an output unit (2) that converts the output of the DC power supply circuit (1) into a rectangular-wave AC voltage,...  
WO/2009/145052A1
When a DC output voltage (Vbus) of a boost chopper circuit (1) is switched from a first DC output voltage (V1) to a second DC output voltage (V2), a boost chopper control circuit (2) intermittently operates the boost chopper circuit (1)....  
WO/2009/145184A1
Provided is a method for setting a resonance voltage and a high frequency current, wherein an excess current peak is suppressed and fluctuation of a resonance voltage of a resonance section (310) is also suppressed, in the case where a s...  
WO/2009/142970A1
A high frequency ballast for a metal halide lamp comprises a controller, a switch, and an oscillator. The controller selectively enables and disables the oscillator via the switch to ignite the lamp. The switch selectively tunes and detu...  
WO/2009/142092A1
A lighting device for a high intensity discharge lamp is designed to reduce the wear and tear of the projection of the tip of an electrode by controlling electric power at the time of starting up the lamp. In the lighting device that inc...  
WO/2009/143015A1
A high frequency ballast for a metal halide lamp comprises a controller, a switch, and an oscillator. The controller selectively enables and disables the oscillator via the switch to ignite the lamp. The switch is in a power supply loop ...  
WO/2009/142996A2
A high frequency ballast for a metal halide lamp comprises a controller, a switch, and an oscillator. The controller selectively enables and disables the oscillator via the switch to ignite the lamp. The switch selectively alters an indu...  
WO/2009/138916A2
The invention describes a method of driving a gas-discharge lamp (1), wherein the lamp (1) is driven at any one time using one of a number of driving schemes, and wherein the lamp (1) is driven at a nominal operating power (Pnom) or at a...  
WO/2009/139875A1
An auto shutoff mechanism that automatically turns off power to a compact fluorescent lamp (CFL) in the presence of an improper use, or an excessive temperature condition, is disclosed. The auto shutoff includes a temperature transducer,...  
WO/2009/136723A2
The present invention relates to a device and a method for converting a binary code containing the luminance information into a signal for turning on/off a lighting device, the device comprising a distributed pulse width modulation (PWM)...  
WO/2009/137183A2
An integral HID reflector lamp may be formed with an HID held in a reflector. An inner element is mechanically coupled to the reflector. The inner element is formed with a first mechanical coupling to mate with the reflector, a second me...  
WO/2009/133641A1
A lighting device (8) comprising a cold cathode fluorescent tube (light source) (9), and a chassis (8a) for housing the cold cathode fluorescent tube (9) is further provided with an inverter circuit (16) having a transformer (16a) connec...  
WO/2009/133236A1
Gas discharge lamps can be driven with a circuit with a small form factor by an arrangement comprising a planar printed wiring board with at least one coil for driving a gas discharge lamp, wherein a reflector plate of the gas discharge ...  
WO/2009/132890A1
The invention relates to a method for operating a gas discharge lamp (1), wherein an electrical heating current (IH) and an electrical discharge current (Id) are at least temporarily supplied to an electrode (6, 7) when the gas discharge...  

Matches 701 - 750 out of 32,970