| Document |
Document Title |
|
JP3003191B2 |
|
|
JP2989755B2 |
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 provided with a dimming circuit 2 which phase-controls a commercial power sup...
|
|
JPH11329760A |
To restrain a rush current generated in driving a load of which impedance is changed depending on temperature. This power supply device senses the temperature of an incandescent lamp 10 by a temperature sensor 6 when a switch S1 is turne...
|
|
JP2985047B2 |
PURPOSE: To prevent the excessive supply of a power to a load in a steady state while the load is operable just after power feeding and provide ideal soft starting characteristic. CONSTITUTION: A resistor T1 is connected in parallel to a...
|
|
JP2983038B2 |
Switching device suitable for operating a lamp (4) by means of a pulse-shaped voltage V1, comprising - switching means (3) for generating the pulse-shaped voltage V1 from an input voltage, V1 having an amplitude proportional to the input...
|
|
JP2977063B2 |
PURPOSE:To precisely realize bit data characteristics peculiar from about the end part of an address to the end part by use of a digital function generating means and prevent the unstable continuity of a phase control element near the ze...
|
|
JP2974408B2 |
PCT No. PCT/EP90/01230 Sec. 371 Date Jan. 28, 1992 Sec. 102(e) Date Jan. 28, 1992 PCT Filed Jul. 27, 1990 PCT Pub. No. WO91/02441 PCT Pub. Date Feb. 21, 1991.A method and circuit arrangement for adapting the light intensity of the summat...
|
|
JPH11290350A |
To provide an economical photosetting instrument for dental materials with an improved flexibility in use. In a photosetting instrument 10 provided with a handy type device 14 having a light source, the handy type device 14 is connected ...
|
|
JP2964651B2 |
|
|
JPH11275854A |
To shift a backlight from its on-state to its off-state under a stable operation of a DC-DC converter by a comparatively simple constitution comprising a DC-DC converter and an inverter transformer. A drive circuit is provided with a DC-...
|
|
JPH11242556A |
To minimize power consumption due to the power loss by cutting or transmitting the reflection of the carrier frequency signal transmitted from a transmission means and accordingly designating a pointing device including a retransmission ...
|
|
JPH11509974A |
(57) [Summary] A string of incandescent bulbs (12-21) connected in series, with virtually every bulb filament each equipped with a shunt element (31), and the shunt element has a string operating normally. It does not operate during the ...
|
|
JP2942425B2 |
|
|
JP2934926B2 |
PURPOSE: To improve visual work efficiency and accuracy by radiating light of not delaying an appearance latent time of a positive event related electric potential making its appearance after a latent time of around 300 milliseconds is p...
|
|
JP2934923B2 |
PURPOSE: To provide a lighting system that radiates such a ray of light as not raising an adrenocorticotropic hormone level in the blood of human beings. CONSTITUTION: Such a lighting system that an adrenocorticotropic hormone level in h...
|
|
JP2934166B2 |
PURPOSE: To provide a lighting device which can avoid the early turn off of a phase control element phase-controlling an AC power supply, and can prevent the flicker of a lamp by delaying a phase advancing current resulting from a capaci...
|
|
JP2920771B2 |
Reverse phase-controlled dimming of an a.c.-powered load is accomplished by switching power to the load on and off during each half cycle. In one embodiment of the present invention, power is switched on when line voltage is substantiall...
|
|
JP2597346Y2 |
The invention provides a light controller for lamps which can reduce the number of parts, cost and size. A rectangular wave voltage output from an astable multivibrator (1) is inverted by an inverter (3) and then supplied to a gate of a ...
|
|
JPH11161347A |
To provide the control circuit of the phase controller of simple constitution which has small variation in load electric power even if the source voltage varies. The control circuit 2, controlling the phase controller 1 which controls th...
|
|
JPH11161346A |
To connect the phase controller, an AC power source, and a load by two wires, to perform replacement with a phase controller using a triac without altering wiring, and to actualize not only ordinary phase control, but also opposite-phase...
|
|
JPH11121181A |
To provide a composite wiring block switch for two lamps capable of easy assembling and incorporating in a luminaire, attachable into a narrow space between fluorescent lamps and enabling glow starter exchange without removing a fluoresc...
|
|
JPH1195609A |
To provide an energizing device for an image forming device capable of excellently preventing the rush current from occurring. When a transistor 93 (or 94) is turned on, photo triac coupler 95 (or 96) and the triac 97 (or 98) are respect...
|
|
JPH1187072A |
To provide a dimmer which can be successively provided in line with embedded wiring accessories. A case 1 is constituted by connecting a body 10 and a cover 20. The case 1 is mounted on a mounting frame 110 for flush type wiring accessor...
|
|
JPH1168532A |
To suppress rush current by utilizing the characteristics at the time of on-state of a semiconductor switching element. When an FET 1 is off, a transistor Q3 is turned on and a charge is accumulated in a capacitor C1. When an on signal i...
|
|
JPH1167470A |
To provide a dimming switch by which flicker of luminance of illumination load due to voltage fluctuation of an a.c. power source is prevented. A series circuit constituted of a Triac TRC and an incandescent lamp L a diode bridge DB are ...
|
|
JP2866893B2 |
PCT No. PCT/SE90/00582 Sec. 371 Date Feb. 13, 1992 Sec. 102(e) Date Feb. 13, 1992 PCT Filed Sep. 12, 1990 PCT Pub. No. WO91/04647 PCT Pub. Date Apr. 4, 1991.A field lighting network providing for individual control of the light fittings ...
|
|
JPH1148858A |
To reduce the number of terminal of a control circuit. One side terminals of light-emitting sources L1-L3 are grounded via switches SW1-SW3 and the other side terminal are joined to a power source 16 via a terminal U1 of a control circui...
|
|
JPH1145785A |
To provide a dimmer having little dispersion of a dimming characteristic. This dimmer is provided with a triode AC switch TRC which is a bidirectional three-terminal thyristor forming a closed circuit together with a series circuit of a ...
|
|
JPH1116687A |
To prevent a device structure from becoming a large-sized while amount of light for illumination can be variably controlled. This device has an inverter part 20 to generate a high frequency electric current, a direct current power source...
|
|
JPH117U |
In order to provide brightness-dependent control of a lamp which is used for illuminating a LCD display, it is known to switch the lamp on and off in dependence on the measured brightness of the incident ambient light. To prevent overhea...
|
|
JPH113787A |
To provide a dimmer for illumination, in which resolution during dimming under low illuminance is improved by a simple circuit system for phase control, while the lowest dimming voltage can be reduced to almost a half of that in the conv...
|
|
JP2843117B2 |
PURPOSE:To safely exchange a lamp by installing a control means to control the output to an incandescent lamp from a lighting apparatus until electric power source is thrown again in the case of re-setting time of an incandescent lamp. C...
|
|
JP2839507B2 |
|
|
JP2835666B2 |
|
|
JPH10312221A |
To provide a power source device reducing noise leakage to an AC power source. A switch circuit 100 and a lamp HL1 are serially connected to the input terminals 1 and 2 of the AC power source through noise filters L1 and C1. To the switc...
|
|
JP2819165B2 |
A system controls power to multiple a.c. lighting loads from both a central location and from individual controls that are located near the loads. The system includes individual wallbox dimmers (26, 28) that include enabling switches, a ...
|
|
JPH10284263A |
To make a circuit compact and inexpensive and reduce production of higher harmonic noises and acoustic noises from an incandescent lamp. In a timing generating part 7, the zero-cross point of an ac power supply 1 is detected, and an igni...
|
|
JPH10510976A |
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...
|
|
JPH10271802A |
To provide an electric apparatus, a power supply, and a lighting device which are suitable for air cooling and enabled to be downsized. By arranging on a base 11 a plurality of groups of an electric element 12 and connecting wire termina...
|
|
JPH10264721A |
To reduce radiation noises which occur when a plurality of lamps are controlled simultaneously. When controlling four stop lamps included in lamp devices mounted on the right and left of a vehicle, a stop-lamp controlling requirement is ...
|
|
JPH10254264A |
To prevent a rush current at the time of turning on a heater worsening of power-factor, generation of a high frequency current, and occurrence of flicker, and to enhance the reliability and miniaturize a driving device, by driving the he...
|
|
JPH10233290A |
To provide a lamp regulator and a lamp lighting device capable of preventing mislighting at a time of energizing lamp breakage at a time of abnormality. When power is applied, if a voltage of a capacitor C is lower than a reference volta...
|
|
JPH10223382A |
To reduce flickers generated in a power source line due to a rush current in the initial period of lighting a lamp. In the initial period of lighting, a lamp lighting control device 7 effects the PWM control of a two-way switch 6, and a ...
|
|
JPH10223381A |
To provide an lighting system to prevent an input current caused by a rush current from greatly changing without increasing current losses. After start-up, the frequency is gradually and continuously lowered to oscillate an inverter circ...
|
|
JPH10223380A |
To sufficiently restrain flickers occurring during initial periods of the lighting of a halogen lamp. Before lighting, the impedance of a halogen lamp 4 is measured by an impedance measurement circuit 8 so that the operation period of li...
|
|
JP2578455Y2 |
A luminaire of variable color temperature is arranged for emitting blended color light from luminaire section, with color temperature control signals so transmitted from control section to luminaire-lighting section as to substantially e...
|
|
JP2578460Y2 |
|
|
JPH10213986A |
To prevent a rush current by first lighting heaters (lamps) with series connection, for preheating and attaining switching to parallel connection, after the resistance of the heaters (filaments) becomes high. H1, H2... denote the heaters...
|
|
JPH10208517A |
To miniaturize a filament by dropping the voltage, and enhance the conversion efficiency to parallel rays. A commercial power supply signal lamp 1 is provided with a power supply control device 4 which performs a conversion into pulsatin...
|
|
JP2779938B2 |
Disclosed is a novel lighting device comprising a power source capable of supplying to a krypton lamp a voltage exceeding its rating, and a krypton lamp connected with an output terminal of said power source. Krypton lamp emits a natural...
|
