Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Patent
1989-11-08
1990-08-28
Wong, Peter S.
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
363 98, 363127, H02M 3335
Patent
active
049530682
ABSTRACT:
A full bridge switching power converter employs zero-voltage, resonant-transition (ZVRT) switching techniques which appreciably reduces the switching losses at high switching frequencies, (for example, 1 MHz and above), using constant frequency, pulse-width-modulation techniques. The converter is implemented using a transfer with four switching FET's coupled to the primary of the transformer and four switching FET's coupled to the output of the transformer and a control unit that supplies the constant waveforms necessary to achieve synchronization and timing required to achieve the ZVRT switching.
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Bowen Glenn W.
Bramson Robert S.
Unisys Corporation
Wong Peter S.
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