Full-bridge soft switching inverter and driving method thereof

Details Full-bridge soft switching inverter and driving method thereof Full-bridge soft switching inverter and driving method thereof

2008-03-11

2008-03-11

Tran, Thuy V. (Department: 2821)

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Silicon controlled rectifier ignition

C315S307000, C315S291000

Reexamination Certificate

active

11432631

ABSTRACT:
A full-bridge soft switching inverter and a driving method thereof, using zero-voltage switching and conducting a circular current in a circuit including two n-channel MOSFET's so as to drive at least one load such as a cold cathode fluorescent lamp (CCFL) and a signal output device and to achieve low switching loss with high efficiency. The full-bridge soft switching inverter comprises a full-bridge circuit configuration including a first p-channel MOSFET having a first gate, a first drain and a first source; a first n-channel MOSFET having a second gate, a second drain and a second source; a second p-channel MOSFET having a third gate, a third drain and a third source; and a second n-channel MOSFET having a fourth gate, a fourth drain and a fourth source. The first gate driving signal and the second gate driving signal are substantially in-phase, while the third gate driving signal and the fourth gate driving signal are substantially in-phase.

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U.S. Appl. No. 10/132,016, filed Apr. 24, 2002, Rajnikant Patel.

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