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WO/1999/003027A1 |
A solid state switching circuit, typically for use in dimmer control of an electric lamp (11). The switching circuit comprises a primary solid state switching device (10) in the form of a triac which is arranged to be connected in circui...
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WO/1998/058525A1 |
A track lighting hybrid illumination system comprising a power supply circuit (11, 41, 22) having an input for connecting to a voltage source (12, 42) of low frequency for providing an output voltage with altered electrical characteristi...
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WO/1998/056101A1 |
A low voltage illumination system (10), comprising a pair of terminals (11, 12) for connecting to a source (13) of low frequency a.c. voltage, a frequency converter (16) coupled to the source of a.c. voltage for converting the low freque...
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WO/1998/048504A1 |
A plug (100) is disclosed that is adapted to be inserted into a standard electrical outlet and has a built-in integrated circuit (18) for rectifying the alternating current received from the outlet and limiting the direct current produce...
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WO/1998/041895A1 |
In a system for remotely controlling a switch (10) and light (100), a conventional remote control (80) is used to turn the light to a maximum setting and pulses received thereafter will reduce the electrical load thereby dimming of the l...
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WO/1998/039951A1 |
The invention relates to an electronic ballast (EVG) operating at least one lamp (10), wherein a light sensor (20) for monitoring the brightness of a specific physical area (28) can be connected to said ballast. A control device (12) con...
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WO/1998/038839A1 |
The invention relates to a control system (8) for a lighting installation (6, 7) In the adaptation section of a tunnel (1), comprising a light density sensor (11) detecting the density of outdoor light in an area in front of or behind a ...
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WO/1998/036476A1 |
A remote control adapter (1) for connecting an electrical device (3) to an electrical supply (2) includes a remote control circuit (7) which is mounted on a substrate fitted within a housing (5) which forms part of the adapter body and w...
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WO/1998/031563A1 |
In the circuitry of this invention, a pre-drive controls the output voltage from the driver to the load. The drive includes a resistor and an output transistor. This circuitry lowers the heat dissipation of the transistor of the output d...
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WO/1998/026394A2 |
This invention is directed to a remote control device which is normally used to control such electronic devices as televisions, VCR's and the like which also is used in conjunction with an IR receiver to control auxiliary devices such as...
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WO/1998/024276A1 |
A power control circuit (20) achieves a relatively smooth turn-on conduction transition characteristic and a relatively low power consumption (Fig. 4). A controlled transition circuit (36) conducts current to a load when in a fully condu...
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WO/1998/020604A1 |
An apparatus for controlling AC supply switches is disclosed, in which the AC supply is switched between a lamp load (1) by means of a power triac (2) and a circuit which converts the AC supply voltage to a DC voltage by using a bridge c...
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WO/1998/020520A1 |
The present invention relates to a light source which includes two individual light elements, wherein the light elements are configured to be operated independently from any other elements incorporated into the light source. Provision is...
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WO/1998/018296A1 |
A power control apparatus, particularly for lighting systems such as fluorescent lights. A power variation circuit (16) is provided coupled between a main electrical input power source and at least one power output to a load (6) such as ...
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WO/1998/018199A1 |
The present invention relates to an electronic power control with a switched-mode power supply, especially for a dimmer application. The power control comprises a half bridge control unit (2) having an oscillator circuit (5) and two cont...
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WO/1998/016778A1 |
A lamp (10) incorporating one or more safety features for reducing the risk of fire or heat damage associated with improper operation of the lamp (10). One safety feature can be an automatic safety switch (20) for terminating power to th...
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WO/1998/017085A1 |
An electric power distribution comprises a source (20) alternating current having a frequency of 10 kHz or greater, and a distribution line (24) connected to the source. The distribution line comprises two conductors (1, 2), each of a su...
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WO/1998/016991A1 |
A circuit for complementing the AC mains supply voltage, particularly for resistive loads, comprising means (3) inserted between an AC power source and a resistive load (8) and adapted to prevent the reverse flow of a processed portion o...
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WO/1998/010622A1 |
Disclosed is an energy saving device for electric lamps, especially for incandescent lamps, comprising a threaded section to be screwed in the cap of a conventional lamp and a socket section for lodging the light bulb therein and a volta...
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WO/1998/004104A1 |
A power supply control unit for a lamp that has luminous means (10) and an at least partially electroconductive lamp housing (12) comprises a first and a second line (P, N) by which a power supply signal can be applied to the luminous me...
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WO/1997/046055A1 |
A string of series connected incandescent bulbs (12-21) in which substantially all of the bulb filaments in the set are individually provided with a shunt element (31) which is inoperative during the normal operation of the set and is op...
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WO/1997/043705A1 |
In order to control the luminosity in a room (1) lighted with several light sources (2a..., 3a...) or several groups of light sources, a system is used with which the ratio between the light intensities of the individual light sources or...
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WO/1997/038559A1 |
A drive circuit for direct-current loads, comprising a number of series circuits, which each consist of an electronic switch, an automatically resetting normally-closed switch and a load. Each electronic switch is capable of driving the ...
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WO/1997/034448A1 |
A remotely controllable and programmable power control unit for controlling and programming the state and power level, including special functions, of one or more electrical devices. The electrical device can be an electric lamp. The sys...
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WO/1997/032331A1 |
A lamp (600) for producing a spectral light distribution which is substantially identical in uniformity to the spectral light distribution of a desired daylight throughout the entire visible light spectrum from about 380 to about 780 nan...
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WO/1997/028671A1 |
The present invention provides a control apparatus (11) for controlling luminescence produced by a light source (12) which comprises sensor means (17) for sensing motion of air and means (3) for varying the luminescence provided by the l...
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WO/1997/025836A1 |
It is provided by the present invention, therefore, a method for semiautomatically calibrating an automatic lighting control system which overcomes many of the drawbacks associated with prior art systems. This method utilizes a light met...
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WO/1997/019577A1 |
Described is an electronic transformer designed to operate a low-voltage halogen lamp (1), the transformer having a harmonics filter (R1, R2, L1, C1, C2), an inverter with two switches (2, 3) controlled to switch on and off alternately, ...
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WO/1997/013307A1 |
A voltage pulse controllable DC electronic device (1) including a shunt circuit with a power semiconductor (U$1), an accumulator circuit (R4, C2, D1), a transfer circuit (R5, D4), a control circuit (C3) for actuating the shunt circuit, a...
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WO/1997/006542A1 |
A multi-function control switch (100) for electrically operating devices, such as a lighting system, is disclosed. The multi-function control switch (100) includes a rocker-type actuating arm (110) for actuating a plurality of momentary ...
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WO/1996/042104A1 |
Miniaturized light-activated lamp control apparatus includes thin disk-shaped switching unit (10) positionable within light socket (102) and thin light conductor (14) having one end attached thereto and being extendable through the gap b...
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WO/1996/041502A1 |
A device for controlling power to an electric load. The device has two components: a portable desktop detector unit (100) and an electrical powerstrip (102). The desktop detector (100) detects the presence of a human in a room and sends ...
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WO/1996/028956A1 |
The invention relatives to a lighting system, comprising at least one light source (100) for supplying artificial light and a control unit (120) for controlling the light source. The light source (100) is of the type having an adjustable...
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WO/1996/019093A1 |
A current consumption control system for controlling the current draw of an electric power-consuming device, e.g., a modular strip lighting unit (10) for a lighting system including at least one said unit, in which the strip lighting uni...
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WO/1996/019094A2 |
A low voltage power supply and distribution center comprises a housing (12) having three internal compartments including: a high voltage compartment (17), a low voltage distribution compartment (19), and a transformer compartment (21). T...
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WO/1996/015546A1 |
Methods and apparatuses for high-speed control of lamp intensity and for high-speed optical data communication are disclosed. In particular embodiments, an arc, plasma or halogen lamp (2) is provided with the ability to change wavelength...
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WO/1996/015649A1 |
An artifical lighting system is enabled to automatically control an aggregate lighting level caused by daylight and by artificial lighting means incident on a substantially horizontal plane so as to provide an ergonomically optimized lig...
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WO/1996/015650A1 |
An artificial lighting system (100) comprises a daylight sensor (102) for sensing a level of daylight, artificial light source means (104) for providing a level of artificial light, daylight control means (108) for control of the level o...
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WO/1996/013689A1 |
An illumination assembly and a method of operating an illumination assembly. The assembly comprises first and second light sources (12, 14), and optical coupler (16), and controller (20). Each of the first and second light sources has an...
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WO/1996/012291A1 |
An electrical power controller (10) includes an input filter (11), a touch logic (12) and a power conditioner (13) combining to control a power device (14) coupled to an electrical load (15) which in turn is coupled to an AC main power s...
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WO/1996/008123A2 |
Electronic H.F. dimmers for high voltage and low voltage incandescent lamps have a very high power factor and extraordinarily low mains current harmonic oscillations. Such appliances for operating low voltage halogen incandescent lamps w...
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WO/1996/005712A1 |
The present invention relates to a light dimmer and a method of controlling the operation of same. The light dimmer (1) comprises a switch (2), a control unit (3) and a phase angle regulating unit (4). The energy needed for operating the...
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WO/1996/005546A1 |
An electronic apparatus for producing a wide variety of spectral outputs comprising at least two dissimilar light sources (10, 76), a source of alternating current (260), a means (404) for specifying the desired spectral output, electron...
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WO/1996/002970A1 |
An inductively powered lamp unit (500) that uses an inductive power pick up comprising a resonant circuit including an inductance (401) and capacitance (402), the induced current circulating in the resonant circuit is limited to a maximu...
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WO/1996/002121A1 |
A low voltage power control circuit supplies substantially equal voltages to a plurality of loads distributed along a pair of parallel wires. Moreover, the voltage delivered is automatically controlled by a feedback control circuit, so t...
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WO/1995/033299A1 |
The invention concerns an interference-control circuit for switching power supplies suitable for use in the operation of both discharge and incandescent lamps. The interference-control circuit has at least one controlled auxiliary supply...
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WO/1995/028067A1 |
A lighting control system operates to control multiple zones of lighting through multiple dimming circuits so as to achieve any one of several desired lighting scenes. The system includes a plurality of wallbox control units (U1, U2, U3)...
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WO/1995/026038A1 |
A lamp (10) for producing a spectral distribution which is substantially identical to daylight color temperature. The lamp contains a filament (18) which, when excited by electrical energy, emits radiant energy at least within the visibl...
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WO/1995/024250A1 |
A synthesized music, sound and light system (10) that is incorporated into articles of clothing (60) such as a pair of shoes. The system (10) when activated, allows a multiplicity of lights (32) to illuminate in synchrony with the rhythm...
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WO/1995/021514A1 |
A regulated power supply unit with an "electronic transformer" having an input for a transformer power supply voltage on the primary side, an output for an operating a.c. voltage with a higher-frequency component on the secondary side an...
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