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WO/2010/112112A1 |
The invention relates to a dimmable amalgam lamp having a quartz glass tube enclosing a discharge chamber comprising a filling gas, and closed by pinching at both ends thereof, through which at least one current feedthrough is fed throug...
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WO2010110170A1 |
The necessary restriking voltage will be enabled to be maintained, even when the inductance value of the starting circuit is small, and the time it will take for the lamp current to reach zero from the pre-reversal polarity is close to t...
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WO/2010/110946A1 |
A circuit for protecting an electronic ballast for use with a remote controller for gas discharge lamps against miswiring to a power source. Depletion mode MOSFETS are employed in both sides of the circuit to the controller and the MOSFE...
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WO/2010/108580A1 |
The invention relates to a bus device with an electronic circuit (1), which is connected, via feed lines, to a low-voltage interface (2), which has at least one first and one second connection terminal (DA+, DA-) for connecting a bus lin...
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WO/2010/110951A1 |
An interface circuit for a lamp ballast includes first and second input power lines, L 1 and. L2, with first and second respective switches, and a neutral power line N, all coupled to a diode bridge. Closing one of the first or second in...
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WO/2010/106128A1 |
The invention relates to a method and to a circuit arrangement for dimming an illuminant (1) according to digital dimming values (Dd) by regulation. In order to ensure that slow dimming is possible at high resolution, but the regulation ...
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WO/2010/102894A1 |
The Invention provides a casing for electronic ballast, which casing is made of plastic material. The casing comprises: a top wall; a bottom wall opposite to the top wall; two opposite side walls extending integrally between the top wall...
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WO/2010/102431A1 |
An energy-saving fluorescent lamp apparatus comprises: an oscillating capacitor, which is set at a power source input and is connected in parallel with a cathode input of a fluorescent lamp; the fluorescent lamp, whose cathode input is c...
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WO/2010/102698A1 |
The invention relates to a known radiation source having a lamp body 2 and an assembly 11 for mounting the same, comprising a socket 5 fixed on the lamp body, a receptacle 6 for receiving the socket, and a detecting device for detecting ...
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WO/2010/101556A1 |
Methods and apparatus for powering a dimmable ballast operating a gas-discharge bulb in a cold cathode mode of operation, that is, without requiring heating of filaments. The ballast circuit includes a rectifier, bypass capacitor, driver...
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WO/2010/100935A1 |
Provided is a mercury-free vehicle discharge lamp that is stably lighted with a power of 18 to 30 W in a steady time. The lamp is defined in a light-emitting portion (11). A discharge medium including a metal halogen compound and a rare ...
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WO/2010/101900A1 |
A multi-stage power supply for a load control device is able to operate in a low-power mode in which the power supply has a decreased power consumption when an electrical load controlled by the load control device is off. The load contro...
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WO/2010/097271A1 |
The invention relates to a method for starting a gas discharge lamp having a resonance circuit, characterized by the following steps: a) exciting the resonance circuit in such a way that for a first time span a starting voltage is genera...
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WO/2010/097995A1 |
The disclosed illumination device is provided with multiple discharge tubes (17) that are disposed in parallel, and a power source (170) for supplying driving power for parallel driving of said multiple discharge tubes (17). The driving ...
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WO/2010/096956A1 |
A fluorescent lamp capable of being used when filaments break or short-circuit. Said lamp includes a lamp tube (1) and a ballast (2) that are electrically connected. Resistors R1 and R2 are respectively connected in parallel to two group...
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WO/2010/094543A1 |
The invention relates to an electronic operating device for a gas discharge lamp having: a DC/DC voltage converter, a power factor correction circuit, an inverter, a lamp inductor, and having a full bridge with two half bridges which can...
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WO/2010/096226A1 |
A dimmable ballast and methods are presented in which the operating frequency of a self-oscillating inverter is controlled according to a sensed lamp current for dimming control or cathode heating, and an AC bus voltage of the inverter i...
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WO/2010/092718A1 |
A lighting device for a display device comprises a plurality of discharge tubes (17) which are arranged side by side, support members (151) which support ends of the plurality of discharge tubes (17), a plurality of connection terminals ...
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WO/2010/092525A1 |
An electro magnetic ballast (110) for a gas discharge lamp (2) comprises: input terminals (3), for receiving a mains voltage; lamp connector terminals (4), for receiving a lamp; a controllable semiconductor switch (26) coupled in paralle...
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WO/2010/091869A1 |
A housing for an ignition transformer for a gas discharge lamp comprises a cavity designed for accommodating the ignition transformer. The cavity has an opening for inserting the ignition transformer into the housing. The housing additio...
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WO/2010/090832A2 |
Disclosed herein is a replacement light for a fluorescent tube usable in a fluorescent fixture connected to a power source and containing at least one LED, the improvement including a detection circuit for connection to the power source,...
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WO/2010/086835A1 |
The present invention relates to a dimmer control circuit (100) capable to detect whether a phase-cut dimmer is connected using an average signal (VDCI) derived from the mains voltage. The average signal (VDCI) or a signal (VDCI_ls) deri...
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WO/2010/086191A2 |
The invention relates to a method for operating a gas discharge lamp, wherein the gas discharge lamp is operated by a square-wave current, wherein the lamp current has predetermined commutation points over time and a commutation for crea...
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WO/2010/086222A1 |
The invention relates to a method for operating a gas discharge lamp having a gas discharge lamp burner and a first and a second electrode, wherein the electrodes have a nominal electrode spacing in the gas discharge lamp burner before t...
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WO/2010/085721A1 |
An integrated circuit device has a modulator module that provides a modulation signal comprising one frequency keyed on and off, or alternating between two or more different frequencies or phases that are selected based upon a modulator ...
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WO/2010/083628A1 |
A method for generating an actuation signal for a light source is provided. A random phase delay for each period of an input signal is generated, where each period is a predetermined length. Each phase delay is added to a predetermined a...
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WO/2010/081570A1 |
The invention relates to a detector circuit for controlling a fluorescent lamp, wherein an inactive fluorescent lamp can be detected if a first signal is present at a first input and/or a second signal is present at a second input in a d...
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WO/2010/079401A1 |
An optical reactor has a reactor enclosure defining a reaction chamber. In the reaction chamber, a light source operating at a very high frequency is arranged to radiate light to a fluid to be treated. A low voltage electrode is arranged...
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WO/2010/079190A1 |
The invention relates to a circuit (1) for operating a lighting means (4), comprising - a half bridge or full bridge circuit (2) for providing a supply voltage for the at least one lighting means (4), and - a control circuit (3) for cont...
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WO/2010/076735A1 |
A method of igniting a lamp is disclosed. The lamp may be a compact fluorescent lamp. The method is directed in particular to reducing or eliminating hard-switching of half-bridge switches driving a lamp. The method operates by reducing ...
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WO/2010/076736A2 |
The present invention provides circuits and methods for igniting a fluorescent lamp, which can be employed to shorten the run-up time of a fluorescent lamp. According to an aspect of the present invention, there is provided a start-up ci...
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WO/2010/076777A1 |
The invention provides a method of dimming a discharge lamp, and the method comprises the steps of providing electric power to a discharge lamp from a mains supply; running the discharge lamp at a preset high power level; calculating a t...
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WO/2010/076105A1 |
The invention relates to a method and to an operating device for determining an acoustic resonance in a HID lamp (5) supplied with high-frequency operating current by an operating device. A detection signal (e) is created for this purpos...
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WO/2010/076728A2 |
A method of controlling a fluorescent lamp is disclosed, which method is capable of implementing, adjustment or omitting a high-power start-up mode. The control is dependent on a sensor, which senses a temperature indicative of the tempe...
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WO/2010/076720A1 |
The present invention provides an electronic circuit for driving a fluorescent lamp from a periodic input voltage provided at a power input terminal. The circuit comprises an inverter for powering the fluorescent lamp, and a control unit...
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WO/2010/073232A1 |
The present invention relates to an apparatus and method for predicting an effective end of life point for a discharge lamp. A system (1 ) for determining an aging characteristic of a discharge lamp comprises a lamp driver circuit (10) f...
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WO/2010/072719A1 |
The invention relates to a method and to an operating device for operating a lighting means (61), wherein the current flowing through the lighting means (61) is regulated. The lighting means (61) is provided with an alternating power out...
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WO/2010/072866A1 |
Device for regulating the luminous intensity in fluorescent lamps with an electromagnetic reactance and a starter, and lighting system which comprises said device, which comprises at least one fluorescent lamp comprising a fluorescent tu...
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WO/2010/072865A1 |
Electronic device for switching on a fluorescent lamp and fluorescent lamp which comprises said device, wherein said fluorescent lamp comprises a fluorescent tube (1) which has an electrical terminal (2) at each end, and wherein said flu...
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WO/2010/070003A1 |
The invention relates to an operating device for gas discharge lamps, in particular fluorescent lamps, comprising a inverter which is powered from a DC source, to said inverter is connected a resonant output circuit having at least one i...
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WO/2010/070517A1 |
A system for simulation of a lighting distribution of one or more controllable light sources (22) in an illuminated environment (23) is disclosed, allowing to generate a graphical representation of the simulated lighting distribution fro...
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WO/2010/031429A9 |
The invention relates to a circuit and a method for dimming at least one luminous element, comprising at least two circuit inputs and an N-connection, wherein the at least one luminous element can be dimmed due to a circuit combination o...
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WO/2010/070789A1 |
A rectangular wave for controlling a switching element (Qa) of a DC/DC converter (3) is generated by using a free-running timer (15) of a CPU (8). Computation processing performed by interruption is limited to required processing so that...
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WO/2010/070996A1 |
When a high-voltage discharge lamp is lit, the lamp voltage is maintained within an appropriate range. A high-voltage discharge lamp lighting apparatus for AC-lighting a high-voltage discharge lamp having a pair of electrodes comprises ...
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WO/2010/067321A1 |
A method of controlling a Fluorescent Lamp (CFL) is disclosed, which enables the lamp to be dimmed during a quick-start mode in which the lamp current may be boosted. The method involves determining a boost value and a dimming value, and...
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WO/2010/068639A1 |
A flyback controller generates a switching signal for controlling delivery of current into a primary winding of a transformer in a flyback converter. The controller may include an output current monitoring circuit configured to generate ...
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WO/2010/063098A1 |
A system for operating a fluorescent light is provided. The system comprises: a fluorescent lamp with at least one electrode having at least one corresponding heating filament; a filament signal power supply for providing a filament curr...
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WO/2010/060837A1 |
The invention relates to an ignition transformer (80) for generating an ignition voltage for a gas discharge lamp, comprising a ferrite core (81) and at least one primary coil (86) and at least one secondary coil (87), wherein the at lea...
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WO/2010/060842A1 |
The invention relates to an integrated gas discharge lamp with an ignition electronics integrated into the base, said ignition electronics comprising an ignition transformer, an ignition capacitor and a controlled circuit element, charac...
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WO/2010/060830A1 |
The invention relates to an integrated gas discharge lamp and to a method for operating an integrated gas discharge lamp (5), wherein a gas discharge lamp burner (50) and operating electronics for the gas discharge lamp burner (50) are i...
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