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JP2009140671A |
To provide a phase control device which prevents disorder of a waveform of output current by surely arc-lighting a thyristor in spite of a light load.The phase control device includes a first phase control circuit 1 having a self arc-ext...
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JP4272245B2 |
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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JP4261806B2 |
Disclosed is an electron beam apparatus and method which can retain the state that minimizes the amount of water content contained at a gap between a high-voltage cable and a high-voltage introduction insulator to thereby prevent creatio...
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JP2009076108A |
To enable an apparatus in an electronic control system to perform 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 ar...
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JP2009510667A |
A dimmer switch coupleable to a circuit including a power source, load, and single-pole double-throw three-way switch that comprises a first and a second fixed contact, and a movable contact. The three-way switch has a first state in whi...
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JP2009026466A |
To provide a lighting control circuit capable of dimming a lighting lamp without flickering by suppressing inrush currents to an electronic transformer due to dimming.In a lighting control circuit comprising an electronic transformer 2 i...
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JP4217629B2 |
Power for one or more luminaire accessories is extracted from a series of lamp operating pulses provided by a phase angle dimmer. A DC power supply is connected to the output of the dimmer to develop and store DC accessory power. A lamp ...
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JP2009021035A |
To provide a dimming circuit capable of normally dimming light without fluctuations for every product.The dimming circuit is provided with a trimming potentiometer VR2 which changes a phase of a trigger signal in addition to a variable r...
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JP2009010963A |
To allow two or three wire operation within an apparatus in an electronic control system.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...
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JP2008312237A |
To enable two- or three-wire operation of a device in an electronic control system.A power supply 150 can supply power to a closed circuit in both of two- and three-wire devices. Two separate zero-cross detectors are used so that timing ...
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JP2008312239A |
To enable two- or three-wire operation of a device in an electronic control system.A power supply 150 can supply power to a closed circuit in both of two- and three-wire devices. Two separate zero-cross detectors are used so that timing ...
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JP2008277310A |
To provide an electronic control system wherein an apparatus 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 ar...
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JP2008277311A |
To provide an electronic control system wherein an apparatus 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 ar...
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JP4180407B2 |
To provide a light fixture control system with which an inrush current is prevented at the time of motor activation, and a light fixture is prevented from rapidly dimming. In a vehicle including a light fixture to be driven by an output ...
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JP4175616B2 |
The apparatus includes a controller (13) which generates a control signal (15a-15e) for lighting up various lights sequences (18a-18j), each sequence including a first lamp and a second lamp, and which generates a switching signal (14a,1...
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JP4177624B2 |
The device has at least two switch elements coupled together to form a first junction, a control circuit with at least one output for controlling the switch elements and an input for a dimming signal and a power transformer with primary ...
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JP4177315B2 |
A PDP driving apparatus and a gray level expressing method thereof that improves the expression of the gray level and reduces pseudo-contour. The average signal level of one frame data of an input image signal is calculated to determine ...
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JP4158285B2 |
An apparatus for driving an electric load includes a switch device interposed in a current feed path from a direct-current power source to the electric load. A sensing resistor connected in series with the switch device operates for dete...
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JP4146667B2 |
To prevent flickering caused by a change in drive voltage due to overlapping of on-timing of PWM signals to a plurality of lamps when both the lamps are lit and driven by PWM control. Frequencies f1, f2 of PWM signals S1, S2 for lighting...
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JP4139108B2 |
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JP4140279B2 |
The object of the present invention is to provide a flash lamp unit with a long service life which allows a high radiant efficiency to be obtained and a flash radiation device demonstrating excellent flash radiant performance despite a s...
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JP4127131B2 |
The invention provides a dimming device to adjust lighting load of light output with high capacity while preventing occurrence of high frequency noise and also achieve high heat dissipation characteristic and miniaturization. The dimming...
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JP4125230B2 |
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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JP2008171821A |
To provide a novel lamp in which at least materials contained therein which are solid or liquid under typical conditions of use and/or storage are vaporized particularly prior to generating light in the lamp.Methods and apparatuses for h...
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JP2008159518A |
To provide a lighting circuit which can make full lighting of a lamp of a light source for an underwater light or the like.The lighting circuit is provided with a lamp 23 and a dimming circuit including a transistor TR to convey a load c...
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JP4116327B2 |
To easily prevent flickering of a lamp. When a power supply source 2 for the lamp 3 and that for a load 11 are identical, using a power source voltage Vin from the power supply source 2, the lamp 3 is lit and driven by PWM control basing...
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JP4095850B2 |
PURPOSE: To provide a light control device without problems of noise and stating delay of a load, and light control system for a studio, theater or the like using the device. CONSTITUTION: The light control device DM is provided with a f...
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JP2008512005A |
Disclosed is for controlling a light source by pulse width modulation of a supply voltage. The supply voltage, or a parameter dependent thereon, is measured and the pulse width is controlled as function of the measured value. The supply ...
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JP4069482B2 |
To surely prevent breakage of a relatively small switching element capable of reducing noise at a low cost even when an AC power supply is large, to quickly build up the light quantity to a desired value and to turn a lamp off when the s...
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JP4069647B2 |
An electrical load drive control apparatus includes: a plurality of drive units, each of which drives one of a plurality of electrical loads; an instruction unit that issues a drive switch instruction to switch drive among the plurality ...
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JP2008066257A |
To provide a lighting system with light adjusting function which suppresses power consumption and speedily adjusts light.A power conversion device 15 and a control circuit 14 are added to a lighting system having the former construction ...
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JP2008053189A |
To aim at downsizing and elongation of life of a power supply switch with a function maintained of notifying an operable state of a lighting load.The switch is provided with a pair of resistors 3 connected at one end with a triac 2 const...
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JP2008053180A |
To provide a dimmer whereby illumination environments suitable for situations can be set, and energy saving effects can be easily obtained over a wide dimming range.This dimmer is equipped with an external volume VR1 to set the dimming l...
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JP2008506226A |
The dimmer configuration (10) coupled with the ballast that controls the lamp has a bypass means (30) that bypasses the phase cut means (20). The bypass means (30) bypasses the phase cut means (20) when not in operation, and activates th...
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JP2008505451A |
A push/pull switch control is incorporated into the surface pattern of a wall box dimmer having a planar face surface. The switch control is finger nail operated and contains a finger nail groove which is accessible on the bottom end sur...
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JP4042656B2 |
To provide a phase control device which realizes low noise, prevention of element damage due to short circuit current, low cost, and small-sizing. The CPU circuit 12 of the control section 1 establishes a current sensing period in which ...
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JP2008503069A |
Apparatus and methods for regulating delivery of electrical energy to a lighting load are disclosed. An electrical waveform is received from a source of electrical energy. An integration value is generated based on a square of an amplitu...
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JP4038697B2 |
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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JP2007335930A |
To enhance safety when short circuit failure occurs in a capacitor for setting the frequency of a triangle wave signal when a load is controlled based on a generated triangle wave signal. The load controller controls a load based on a ge...
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JP2007335932A |
To suppress increase in heat generation of a load drive element even if the temperature rises and to miniaturize the load controller. In the load controller, a triangle wave generation circuit 1 generates a triangle wave by switching cha...
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JP4013846B2 |
To restrain the generation of high-frequency noise even in the case that an illumination load with a large load capacity is connected. Between both ends of a triac Q1, IGBTs Q2, Q3 are connected in series so that their conductive directi...
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JP2007304571A |
To provide a lighting control unit obtained by improving the conventional control unit. A wireless controllable and programmable power control unit for controlling and programming the state and power level, including special functions, o...
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JP4012081B2 |
To provide a circuit for lighting a light source which is extremely effective in small size and making light weight a lighting type display device such as an illuminating type push button switch or a display lamp, which can be adapted fo...
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JP2007294446A |
To provide 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 being an electric lam...
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JP3999963B2 |
To provide a lamp control device ensuring the turn-off of a lamp when the lamp is controlled to turn off. The lamp control device includes a pair of current input terminals consisting of a first terminal to which currents are inputted an...
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JP3999570B2 |
The invention relates to a light source unit control method and a light source control unit, and a light source unit comprising a filament lamp with a characteristic of having a light quantity changing almost in proportion to a control v...
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JP2007282224A |
To provide a programmable, wireless power controller which comprises a special function for controlling and programming the states and power levels of one or more electric devices. This system comprises a remote transmitter which can be ...
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JP2007280973A |
To provide a driving circuit for providing a control signal to a power semiconductor device for supplying power to a filament lamp. The driving circuit comprises an oscillator for generating the control signal. The driving circuit may fu...
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JP3988338B2 |
There is provided a control apparatus for a light radiation-type rapid heating and processing device in which a power factor can be improved, the influence of a higher harmonics strain can be eliminated and a rapid temperature increase o...
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JP2007527720A |
A fishing lure including an illumination means; a body having walls defining a water tight cavity; a power source and a control circuit within the cavity connected to the illumination means. The control circuit controlling the supply of ...
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