Inverter control circuit

Details Inverter control circuit Inverter control circuit

2006-11-06

2010-06-29

Connolly, Mark (Department: 2115)

Electrical computers and digital processing systems: support

Clock, pulse, or timing signal generation or analysis

C345S204000, C345S690000

Reexamination Certificate

active

07747891

ABSTRACT:
An inverter control circuit is used to control a switch and a transformer in front of a light-emitting unit and then adjust the driving power for the light-emitting unit and modify the luminant state of the light-emitting unit and comprises: a first control unit and a second control unit both having equivalent electronic elements. The first control unit and the second control unit have a signal generator and a signal synthesizer circuit. According to a signal fed back by the light-emitting unit and a dimming signal, the first signal generator outputs first working signals via the signal synthesizer circuit of the first control unit to determine the turn-on time of the switch. According to the first working signals and via the signal synthesizer circuit of the second control unit, the second signal generator outputs second working signals to the switch to determine the resonance frequency of the transformer.

REFERENCES:
patent: 5640313 (1997-06-01), Takehara et al.
patent: 6362578 (2002-03-01), Swanson et al.
patent: 2007/0080911 (2007-04-01), Liu et al.
patent: 2007/0126690 (2007-06-01), Chae

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