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WO/2005/045312A1 |
Lighting devices and methods include a base portion for engaging a light socket, and a socket for receiving a light bulb. At least one light source is coupled to the base portion. The base portion is electrically connected to the device...
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WO/2005/040672A1 |
Electric power generating device comprising magnetic means (22) rotating inside electromagnetic means (26a,26), means (21,24;121,24;221,24) for rotatably actuating said magnetic means, and means (32) for fast storage and slow release of ...
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WO/2005/038828A2 |
A ring balancer comprising a plurality of balancing transformers (102) facilitates current sharing in a multi-lamp backlight system. The balancing transformers (102) have respective primary windings separately coupled in series with desi...
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WO/2005/031476A1 |
Illuminance at a desired position is brought closer to a target illuminance by sequentially performing a procedure for making a decision whether a relation between the illuminance at the desired position and the target illuminance satisf...
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WO/2005/022964A1 |
A lighting controller (1) for initially reducing and then gradually increasing the power provided to a light source (10) is disclosed. In a first embodiment, the lighting controller comprises a negative temperature coefficient (NTC) resi...
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WO/2005/013646A1 |
An illumination control system includes at least two illumination devices and at least one illuminance comparison device. The illuminance comparison device compares an illuminance at an arbitrary position with a target illuminance and th...
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WO/2004/112443A1 |
A projection system for image display with at least one lamp (1), with at least one sensor (5) for detecting changes in the luminous flux delivered by said at least one lamp (1) and for compensating these changes through a suitable contr...
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WO/2004/110107A1 |
An energy savings device for an inductive, a resistive or a capacitive load, such as a fluorescent light fixture having a magnetic ballast or an electronic ballast, which is powered by an AC voltage waveform. The energy savings device in...
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WO/2004/106950A1 |
The instantaneous value of an intermediate waveform I is the instantaneous value of a unipolar waveform U multiplied through amplification by an upscaling factor UF of 1.5. A plateau value P is subtracted from the intermediate value I, a...
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WO/2004/100617A1 |
A lamp (1), for use in street lighting, is provided with a small network element (10), which preferably is arranged within a lamp fitting (5). The network element is provided with a switching facility, for switching the lamp ON or OFF in...
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WO/2004/097866A1 |
Apparatus for supplying energy to a load, comprises a power supply unit (102) e.g. a switched mode electronic transformer or electronic ballast having an input for receiving current at mains frequency and a means for stepping-up said mai...
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WO/2004/095007A1 |
This invention relates to an apparatus for measuring and recording reflectance of a prepared surface, in preferred embodiments, a main road surface. The apparatus includes at least one data recording system, at least one light emitter fo...
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WO/2004/073177A2 |
An inductive power supply system for providing power to one or more inductively powered devices. The system includes a mechanism for varying the physical distance or the respective orientation between the primary coil and secondary coil ...
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WO/2004/073283A2 |
An inductive coil assembly having multiple coils arranged at distinct orientations to provide efficient inductive coupling of power or communications or both to a device when the device is arranged at different orientations with respect ...
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WO/2004/073359A1 |
A fail-safe lighting apparatus, in particular for street lighting, and its use. The use of a sensor to determine the failure of a component in a lighting assembly. A method whereby a signal transmitted to a remote computer is monitored a...
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WO/2004/072840A1 |
A controlling device (1) for controlling lighting parameters is connected to a number of lamps (70). The controlling device (1) comprises a controlling member (20), which is placed on a contact surface (11) by a user. Lighting parameters...
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WO/2004/039631A1 |
A device for controlling lighting, especially inside the passenger compartments of vehicles, comprising at least one light source (4) and at least one sensor (7) which influences said light source and which detects at least the movement ...
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WO2003067929B1 |
Power for one or more luminaire accessories (26) is extracted from a series of lamp operating pulses provided by a phase angle dimmer (28). A DC power supply (44) is connected to the output (38, 40) of the dimmer (28) to develop and stor...
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WO2003096135B1 |
A controller for controlling a voltage applied to a load (500) from a power source (100) includes a square wave producing circuit (300) for connection in the circuit with the battery and the lamp. The square wave producing circuit (300) ...
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WO/2004/012480A1 |
The instant invention relates to a solid state low voltage power supply controller which reduces a conventional 120 volt AC power source to 12 volt pulsating DC for the purpose of operating a single “point of use” light source wherei...
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WO/2004/002196A2 |
A self contained multiple dimming channel package (20) includes a housing (22) with a main power circuit board (66) supported on its bottom wall and a control circuit board (68) extending laterally and vertically to baffle air flow throu...
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WO/2003/107723A1 |
A power supply circuit (10) and a motor vehicle headlamp with a power supply circuit (10) are proposed. The power supply circuit (10) has a voltage input (14) for a voltage for the vehicle's electrical system and one or more voltage outp...
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WO/2003/092329A2 |
A lamp assembly configured to inductively receive power from a primary coil. The lamp assembly includes a lamp circuit including a secondary and a lamp connected in series. In a first aspect, the lamp circuit includes a capacitor connect...
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WO/2003/087653A2 |
A portable imaging system incorporating a portable light source powered by a battery (112), the output of which is conditioned and regulated to supply an output voltage of a selected level such that the light source provides illuminating...
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WO/2003/081364A1 |
A dimmer circuit arrangement is disclosed including a second control circuit for controlling the operation of a triac for delivering current to a load, and a first control circuit for controlling the operation of an IGBT power semiconduc...
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WO/2003/081961A1 |
A dimmer circuit arrangement is disclosed including a second control circuit (40) for controlling the operation of a triac (50) for delivering current to a load (60), and a first control circuit (10) for controlling the operation of an I...
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WO/2003/081962A1 |
A protection circuit for protecting a dimmer circuit controlling an inductive load including an imbalance detector for detecting an asymetrical operation in the load and circuit control means for causing the dimmer circuit to reduce a DC...
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WO/2003/069962A2 |
A centralized device for supply voltage control of a load with power factor correction condensers, in particular for lighting engineering applications, comprising a portion of power obtained by means of an array converter (15), which com...
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WO/2003/060619A1 |
The present invention provides a high frequency electronic ballast with ignition and operation control, and method of use, comprising a ballast microcontroller (200) responsive to at least one high intensity discharge (HID) lamp feedback...
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WO/2003/060950A2 |
The invention relates to a lamp unit comprising a mercury low-pressure amalgam irradiator (2) with at least one amalgam reservoir (5), in addition to a jacket tube (1) that surrounds the irradiator. An air gap (3) is provided between the...
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WO/2003/059017A1 |
A driving circuit for providing a control signal to a power semiconductor device for providing power to a filament lamp, said driving circuit comprising an oscillator for generating said control signal. The driving circuit may further co...
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WO/2003/058801A1 |
A controller (20, 30, 50) for reducing acoustic noise produced during use of a leading edge dimmer, includes a leading edge controller (25, 35) responsive to an input voltage fed thereto for producing a control signal upon detection of a...
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WO/2003/056884A1 |
The present invention provides a high frequency electronic ballast with rail voltage switching which adjusts the DC rail voltage output (208) to account for different voltages of mains power (210), improving efficiency. The rail voltage ...
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WO/2003/056537A1 |
The present invention provides a high frequency electronic ballast with low voltage output, comprising a high voltage power supply (200) generating high voltage power (234) at a voltage and a frequency; a low voltage microcontroller (214...
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WO/2003/043385A1 |
A lighting control system provides a desired illumination level at a task location while saving power. Controlled electric light is produced having an intensity responsive to a control signal. The system comprises at least one light fixt...
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WO/2003/034694A2 |
A curing lamp apparatus is used for providing electronic voice information to report a number of operating conditions associated with the curing lamp (40). The apparatus includes a light sensor for sensing output power (240), voltage and...
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WO/2003/030595A1 |
A self-oscillating bridge circuit comprises a start circuit for rendering one of the switches conductive for the first time at the start of operation. The start circuit is configured in such a way that it does not influence the switching...
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WO/2003/017734A1 |
The invention relates to lighting engineering and can be used for illuminating public, industrial, house spaces and outdoor areas. Said invention simplifies a structural design and increases reliability and serviceability. The inventive ...
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WO/2003/015478A1 |
A control system includes an electrical load control device responsive to radiant energy and a transmitter. The transmitter includes two sets of radiant energy generators connected to an electrical circuit such that polarity of the sets ...
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WO/2003/012968A1 |
An electric power distribution system comprising: a source of high frequency alternating current having a resonant output circuit with a predetermined operating frequency; a transmission line spur connected to the source, the spur compri...
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WO/2003/005550A1 |
An apparatus in an electronic control system allows two or three wire operations. A power supply (150) can supply power to the enclosed circuitry in both two and three wire installations. Two separate zero cross detectors are used such t...
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WO/2003/005132A2 |
A refrigerated vending machine (11) provides separate power conservation modes for the cooling system and the panel lights. Power conservation for the panel lights accounts for vending machine location. Location is indicated by a setting...
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WO/2003/005777A1 |
A lighting system and method (1) is disclosed having a pulse-width modulation (PWM) lighting system and method for use in environments where the PWM ratio is variable, for example though not exclusively, in 42V and/or dual-voltage electr...
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WO/2003/001854A1 |
This invention is about an electronic band which can be used to make characters. It is a line of wire with many lights. The body of a light is made up of a bulb, a water-proof ring, a baseplate, a controller to control the bulb and botto...
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WO/2002/093711A1 |
A string set (100) of series-connected incandescent flasher type lamps (101-105, 131-135) in which substantially all of the lamp filaments (17) in the set are individually provided with a voltage regulated shunt circuit, which includes a...
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WO/2002/091328A1 |
An infrared hand-held remote control for handling a single or plural devices such as lights, shades, drapes and the like contains ergonomically selected and placed control buttons that are self-describing and easy to use. It allows expli...
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WO/2002/075862A1 |
One or more strings (G1-GN) of decorative lights (L1-L8) are supplied with power from a standard residential power by means of a power supply (10), which supplies the power to at least one pair of parallel conductors (11, 12), such condu...
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WO/2002/065818A1 |
The invention relates to a device for controlling a lighting device of a motor vehicle, comprising a control array (10) that generates at least one pulse width modulated control signal (16) for at least one switching element (18) by mean...
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WO2001052608A9 |
A constant current regulator that receives an AC input current from a source provides a constant AV current to a load. The regulator includes first, second, third, and fourth electronically controllable switches, a transformer coupled to...
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WO/2002/043244A1 |
A switching circuit which facilitates electrically controlled actuation of a switching device, such as a relay, in a two-wire circuit where access may be gained only to an active conductor. The switching circuit (10) comprises an electri...
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