Protection control circuit for discharge lamps

Details Protection control circuit for discharge lamps Protection control circuit for discharge lamps

2007-12-18

2007-12-18

Tran, Thuy Vinh (Department: 2821)

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Plural load device systems

C315S295000, C315S299000

Reexamination Certificate

active

11188625

ABSTRACT:
A protection control circuit for discharge lamps aims to control protection signals input to a load at a rear end of a high voltage output zone that are generated during abnormal conditions. The high voltage output zone has a control unit and a driving unit, and a switch device interposed between them to receive a first voltage distribution signal output from the control unit and output a plurality of second voltage distribution signals corresponding to the number of the driving devices. Each of the driving devices is connected to a high voltage output zone line of the discharge lamp that feeds back a protection signal to the switch device. The switch device determines a first electricity condition or a second electricity condition of each high voltage output zone line of the discharge lamps that is connected to the individual driving device.

REFERENCES:
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patent: 6239558 (2001-05-01), Fujimura et al.
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patent: 2005/0122066 (2005-06-01), Chou et al.
patent: 2003229288 (2003-08-01), None

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