Half/full bridge converter

Details Half/full bridge converter Half/full bridge converter

1997-07-29

1999-01-12

Hecker, Stuart N.

Electric power conversion systems

Current conversion

Using semiconductor-type converter

363 17, H02M 75387, H02M 3335

Patent

active

058597719

ABSTRACT:
Known converters for converting a d.c. voltage at their input to a rectifiable a.c. voltage at the output operate reliably with very small input voltage fluctuations and relatively small fluctuations in load. In order to increase the range of input voltages and loads, it is proposed that a full-bridge converter with filter capacitors in one bridge branch be operated under low-load conditions as a half bridge, such that the capacitors form the midpoint of the half bridge, and under high-load conditions to change to full-bridge operation.

REFERENCES:
patent: 4213049 (1980-07-01), Seifert
patent: 4700287 (1987-10-01), Nilssen
patent: 5245520 (1993-09-01), Imbertson
patent: 5715155 (1998-02-01), Shahani et al.
patent: 5719759 (1998-02-01), Wagner et al.
patent: 5764494 (1998-06-01), Schutten et al.
patent: 5774346 (1998-06-01), Poon et al.
Bhat, Ashoka K.S.; "Analysis and Design of a Modified Series Resonant Converter"; IEEE Transactions on Power Electronics; vol. 8, No. 4; Oct. 1993.
Jain, Praveen; Dawson, F. P.; Dewan, Shashi B., "A Near-Zero Current-Switching Series Resonant Inverter Using GTO's"; IEEE Transactions on Industrial Electronics; Vo. 39, No. 4; Aug. 1992.

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