Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Impedance or current regulator in the supply circuit
Reexamination Certificate
2006-09-05
2008-11-25
Vu, David Hung (Department: 2821)
Electric lamp and discharge devices: systems
Periodic switch in the supply circuit
Impedance or current regulator in the supply circuit
C315S291000, C315S307000
Reexamination Certificate
active
07456583
ABSTRACT:
A circuit such as may be used for igniting and operating a gas discharge lamp is provided. The circuit includes a resonant circuit connected to receive a variable voltage output signal from an inverter. The resonant circuit includes a first circuit stage and a second circuit stage. The second circuit stage includes a resonant tank circuit configured to generate a resonant output voltage when a switching frequency of the inverter matches a resonant frequency of the resonant circuit. The first circuit stage includes at least one current-suppressing element for reducing an effect of a resonant current that flows in the resonant circuit on a switching current that flows in the inverter.
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J. David Irvin (Basic Engineering Circuit Analysis, second edition book, chapter 8, p. 298).
Pokharna Rajendra Kumar
Varga Viktor Karoly
Yang Chao
Yao Xiaoli
Zhang Yingqi
DiConza Paul J.
General Electric Company
Le Tung X
Vu David Hung
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