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JP3399844B2 |
To instantaneously switch to an auxiliary light source by detecting non-lighting of a main light source in a ready-to-light state by supply of power. Power is supplied to a main fluorescent lamp 7 having a live load through terminals 103...
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JP3386458B2 |
A power control circuit comprises a first dimmer (212) having first and second main terminals and a control terminal for controlling the output of the first dimmer in response to control input signals applied to the control terminal. The...
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JP3384035B2 |
PURPOSE:To maintain the specified color temp. of a halogen lamp by detecting the voltage of a lithium ion battery, maintaining the voltage from this lithium ion battery in accordance with the detected output at a specified voltage and im...
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JP2003052169A |
To minimize rush current in driving a load by converting a high voltage into a low voltage, and attain cost reduction and circuit simplification. This load drive includes a first switching element SW1, which is connected to a high-voltag...
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JP3378117B2 |
PURPOSE: To light a lamp such as an incandescent lamp by converting a commercial power supply voltage into a high frequency. CONSTITUTION: A lighting device is composed of a dimming circuit 2 which phase-controls a commercial power suppl...
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JP2003045683A |
To provide a slow start circuit suited for extending the service life of a lamp by suppressing a rush current when lighting the lamp, or for smoothly starting a motor or the like without a shock. A reactance (coil) 5 is connected between...
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JP2003505910A |
A switch ( 10 ) comprises a face plate ( 16 ) and a single switch sensing oscillator ( 18 ) responsive to a switch activating presence. The oscillator ( 18 ) has a resistive component ( 36 ) connected to a sensing plate ( 38 ) which acts...
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JP2003036817A |
To improve a starting characteristic of a dielectric barrier discharge lamp. The dielectric barrier lamp is provided with the elongated electrode (3) which is arranged on the inside surface of the wall of a discharge vessel (2) and cover...
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JP2003504792A |
The present invention is a system and method for reducing the voltage necessary to produce a glow discharge in a gas. This is done by fabricating the cathode in a gas discharge device out of a conductive material that is permeable to the...
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JP3374417B2 |
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JP2003501797A |
The street lighting remote transmission control technique has an electric light (21) with a control network connected. Control signals are received by a radio message unit (17). Signals are processed (18) control settings set and passed ...
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JP3364407B2 |
To reduce power consumption and to adjust luminosity with higher accuracy by reducing distortion of load current, and thus enhancing power factor and efficiency. A diverter circuit 5 is provided which is connected in parallel with the pr...
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JP2002544606A |
The object of the invention is a control circuit for eliminating a voltage and current spike from a circuit formed by a switching transistor (T2) and a load (L). The base control of the switching transistor (T2) is arranged to be depende...
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JP2002359122A |
To provide a transformer that has a floating inductance to be integrated, does not require any individual induction components, and can simplify the design of a resonance switch mode power supply. The transformer has an additional induct...
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JP3335136B2 |
A method of controlling a supply of electric power to an electric load and a circuit thereof are disclosed. The circuit includes a control voltage generating part means for generating a control voltage which decreases over time, an amass...
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JP2002534781A |
A circuit arrangement for igniting and operating a high-pressure discharge lamp includes input terminals for the connection of a supply source and output terminals for the connection of the lamp. A switching circuit operates the lamp at ...
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JP2002532318A |
A vehicle light system circuit includes a PROFET to automatically detect the presence of a faulty light source and switch to an unaffected light source. The system also adjusts the brightness of the unaffected light source by adjusting a...
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JP3328835B2 |
To provide an electronic control fireworks lamp assembly for disguising the entire explosion stage of the conventional fireworks using gunpowder and a process for producing the same. This lamp assembly consists of an emission structure 1...
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JP2002529294A |
Dashboard dimmer light circuit for a vehicle, for example a car or truck. A power supply 10 provides a step-function voltage signal to an op-amp oscillator circuit 20 which provides a triangular voltage oscillation signal to an op-amp le...
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JP3322271B2 |
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JP2002527025A |
The invention concerns a control circuit for controlling a load to be supplied in alternating current voltage, comprising a two-way switch capable of being controlled by phase angle, in series with the load between two terminals applying...
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JP2002216979A |
To effectively suppress a rush current flowing into an incandescent lamp without consuming a useless electric power.The incandescent lamp 12 and MOSFET14 are connected in series against a power supply, and a capacitor 164 is connected be...
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JP2002218744A |
To reduce complexity of wiring inside a vehicle, and make use of advantages of a high-voltage electrical system.This feeder module (11) has an energy storage circuit (10) in it, and constituted so as to reduce the number of connecting wi...
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JP3304894B2 |
To eliminate the effects of harmonic distortions imparted to the power supply side of a filament lamp lighting device which dims a plurality of filament lamps. Lamp-lighting control circuits 2-1 to 2-n are provided to correspond to a plu...
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JP3300173B2 |
PURPOSE: To provide an over-load detecting apparatus and an incandescence lamp control apparatus which can detect an overcurrent by cancelling variation of an input power supply voltage through detection of over-current through a DC circ...
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JP2002190393A |
To provide a multipipe protecting circuit of an electronic ballast, which quickly and surely cut off an abnormal fluorescent lamp circuit to protect a normal fluorescent lamp, while reducing the cost.All fluorescent lamp circuits are con...
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JP3297944B2 |
PURPOSE: To realize a power supply circuit for which the duration of life of its filament can be lengthened. CONSTITUTION: When power is turned on for a flyback transformer FBT, then an output voltage Vout changes; and when a level which...
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JP3282185B2 |
PURPOSE:To provide possibility of dimming a halogen lamp with a dimming device and prevent oscillation of an oscillator from stopping even though DC voltage is missing for a short time. CONSTITUTION:A DC voltage is supplied to an oscilla...
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JP2002511640A |
A string set of series-connected incandescent bulbs adapted to being connected to a source of alternating-current operating potential and in which all of the bulb filaments in the set are individually provided with a non-avalanche shunt ...
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JP2002087151A |
To provide a vehicle lamp control device capable of controlling electromagnetic noise generated when feeding a lamp, in a vehicle lamp control device fed by a high voltage battery.Plural lamps 21 to 28 are successively and periodically f...
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JP3268558B2 |
A lamp 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 nanometer...
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JP2002075671A |
To prolong the life of an incandescent lamp in a simple way.Filaments f1, f2 of an incandescent lamp are attached in parallel between electrodes. Moreover, a resistance R is connected in series to the filament f, and a timer T having a c...
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JP3264671B2 |
A lamp for producing a spectral distribution which is substantially identical to daylight color temperature. The lamp contains a filament which, when excited by electrical energy, emits radiant energy at least within the visible spectrum...
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JP2002502217A |
The present invention relates to apparatus used in power control, such as apparatus for controlling the power level in an AC electrical circuit. Such an apparatus is referred to as an AC power converter. In one form, the present inventio...
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JP3249523B2 |
A lighting control device for controlling the state and intensity of a lamp includes a user-actuatable intensity selector for selecting a desired lamp intensity level between minimum and maximum intensity levels. The device further inclu...
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JP2002015880A |
To provide a lighting system, capable of enhancing flexibility level of connection between a dimmer and a luminaire for dimming and of responding to the demand for opening of a market.This lighting system has the dimmer 1 for generating ...
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JP2002015882A |
To provide a method and a device for eliminating filament hot shock in a lamp filament, in particular a small filament light source of a high- efficiency infrared-ray reflecting coating halogen lamp or the like in plugging or carrying a ...
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JP3234245B2 |
PURPOSE:To provide an incandescent lamp of which heat radiation efficiency is improved, of which load controlling capacity can be high, and of which operation part to be installed to a wall can be compact by installing a dimmer unit a pa...
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JP3230003B2 |
Disclosed is a lighting device to emit a light which substantially does not delay the latency of P100 wave in human VEP. Such a light hardly causes eyestrain when used in illumination. This renders the lighting device very useful in vari...
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JP2001315572A |
To provide a lamp control device for an automobile capable of lighting a lamp in specific brightness.A headlight lamp control device 11 has a (+) terminal of a battery power source, the lamp 14 and a control circuit 12 arranged between t...
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JP2001519639A |
A phase controlled dimming system having an active filter for receiving the AC line voltage waveform, and for recovering the AC fundamental waveform therefrom is disclosed. The recovered AC fundamental waveform is supplied to a zero cros...
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JP2001273983A |
To provide a light control device which has a plain circuit configuration and which is small and highly reliable. The light control device 100 is equipped with PWM circuit 401 for driving by pulse width modulation and a switching device ...
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JP2001273981A |
To decrease or increase commonly with the same rate a luminance of a light source in lighting equipment equipped with light sources of various different styles. The control device of the light source to control the light source (30 to 35...
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JP3207346B2 |
To reduce a cost of an emitting device which can on/off operate an electroluminescence. An electroluminescence E is connected to a plus/minus side of a battery B through an inverter circuit 1. This inverter circuit 1, without changing co...
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JP2001223093A |
To attain a blinking device for a decoration light which can make a blinking period variable and has a long life by maintaining the blink timing of each line in the fixed state.The blinking device 1 for the decoration light which is conn...
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JP3195803B2 |
PURPOSE: To provide a dimmer with a simple circuit configuration, with which phase control can be made with signals representing the dimming level. CONSTITUTION: A bidirectional three-terminal thyristor 13 is triggered with inter-end vol...
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JP2001211658A |
To provide a power converter to be used in a stabilizer which supplies low-voltage alternating current from a high-voltage power source to a load circuit comprising a low voltage lamp.The power converter is fitted with a rectifier (18) w...
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JP3186088B2 |
PURPOSE: To eliminate hazard due to rapid lighting and heating of a halogen lamp in case it is installed in the live state. CONSTITUTION: A halogen lamp is lighted up, and its surface temp. is left rising to 50°C (T2), and the period af...
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JP3184556B2 |
PURPOSE:To provide an incandescent lamp dimmer which releases a dimmer unit from the restriction of body dimensions and increase a load control capacity by improving a radiation efficiency and also reduce the size of an operation part re...
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JP2001143881A |
To provide a lamp drive circuit for easily adjusting brightness variations of a lamp by driving the lamp with PWM. A lamp drive circuit comprises a drive circuit (4) for controlling a lamp (1) connected to a power source (2). The drive c...
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