Electric power conversion systems – Current conversion – With voltage multiplication means
Reexamination Certificate
2006-09-05
2008-12-02
Nguyen, Matthew V (Department: 2838)
Electric power conversion systems
Current conversion
With voltage multiplication means
C315S352000
Reexamination Certificate
active
07460379
ABSTRACT:
An ignition circuit and method, as may be used for igniting a gas discharge lamp, are provided. The circuit includes a voltage multiplier circuit connected to receive a signal corresponding to a DC bus voltage level from a rectifier circuit. The voltage multiplier circuit includes first and second voltage storing circuits configured to each respectively store a voltage level corresponding to a first multiple of the DC bus voltage level (e.g., at least twice the DC bus voltage level). The voltage multiplier circuit further includes a peak voltage holding circuit connected to the first and second voltage storing circuits to accumulate a voltage level corresponding to a second multiple of the DC bus voltage level (e.g., at least four times the DC bus voltage level). The circuit further includes an ignition module having a transformer selectively connected by way of a switch to the voltage multiplier circuit through a primary winding to receive the voltage accumulated at the peak voltage holding circuit, and thereby generate an ignition pulse voltage applied to the lamp through a secondary winding of the transformer.
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Pokharna Rajendra Kumar
Varga Viktor Karoly
Yang Chao
Yao Xiaoli
Zhang Yingqi
DiConza Paul J.
General Electric Company
Nguyen Matthew V
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