Strobe dimmer of which the luminous intensity and color temperat

Details Strobe dimmer of which the luminous intensity and color temperat Strobe dimmer of which the luminous intensity and color temperat

1996-10-18

1999-03-16

Mottola, Steven

Electric lamp and discharge devices: systems

Condenser in the supply circuit

Condenser in shunt to the load device and the supply

315DIG4, 396164, 396225, H05B 4138, H05B 4100

Patent

active

058834745

ABSTRACT:
A strobe dimmer of which the luminous intensity and color temperature are respectively controllable comprises: a fourfold-voltage rectifier circuit(1) having two twofold-voltage rectifier circuits(11,12) for rectifying an input voltage to twofold or fourfold DC voltage depending on the magnitude of input voltage and applying the rectified input voltage to respective strobe discharge tubes(ST1,ST2,ST3); a high voltage generating circuit(5) for supplying high voltage to respective trigger terminals(Tr) of the strobe discharge tubes(ST1,ST2,ST3) through corresponding trigger coils(LT); a first luminous intensity control circuit(13) connected between a ground terminal(GND) and an output terminal(X) of the fourfold rectifier circuit(1), and connected to respective anode terminals(Ad) of the strobe discharge tubes(ST1,ST3); a second luminous intensity control circuit(13a) connected between the ground terminal(GND) and the output terminal(X) of the fourfold rectifier circuit(1), and connected to respective anode terminals(Ad) of the strobe discharge tubes(ST2,ST3); and a color temperature control unit(14) connected to a terminal of a power supply.

REFERENCES:
patent: 3783338 (1974-01-01), Bowen

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