Power converter adaptively driven

Details Power converter adaptively driven Power converter adaptively driven

1995-08-09

1998-04-21

Sterrett, Jeffrey L.

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

363 89, 363127, H02M 3335

Patent

active

057424918

ABSTRACT:
A drive circuit for a converter and a method of driving a converter. The converter includes an inverter and a synchronous rectifier. The drive circuit includes: (1) a modulation circuit for generating a drive waveform for controlling the inverter and the synchronous rectifier employing a negative feedback loop, (2) a modification circuit, coupled to the modulation circuit, for sensing an operating condition of the converter and shifting a portion of the drive waveform as a function of the operating condition, the modification circuit thereby creating a variable drive waveform from the drive waveform without employing negative feedback and (3) a transmission circuit, coupled to the modification circuit, for applying the variable drive waveform to the converter, thereby allowing a variable nonconcurrent change in state of the inverter and the synchronous rectifier according to the function of the operating condition.

REFERENCES:
patent: 4356541 (1982-10-01), Ikenoue et al.
patent: 4399499 (1983-08-01), Butcher et al.
patent: 4870555 (1989-09-01), White
patent: 5255174 (1993-10-01), Murugan
patent: 5303138 (1994-04-01), Rozman
patent: 5321596 (1994-06-01), Hurst
patent: 5402480 (1995-03-01), Hirahara
patent: 5424932 (1995-06-01), Inou et al.

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