Voltage-mode quasi-resonant dc/dc converter

Details Voltage-mode quasi-resonant dc/dc converter Voltage-mode quasi-resonant dc/dc converter

1991-02-06

1991-11-19

Stephan, Steven L.

Electric power conversion systems

Current conversion

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

363 97, 323222, 323225, 323271, 323282, H02M 3335

Patent

active

050670662

ABSTRACT:
A voltage-mode quasi-resonant dc/dc converter which operates in full-wave mode at high switching frequencies is disclosed. The ideal switch for the voltage-mode quasi-resonant converter is implemented by a pair of MOSFET switches serially connected to each other so that their parasitic diodes are opposite to each other. This construction enables a charge on the parasitic capacitances of the MOSFETs to be released, and heat loss to be reduced, so that a full-wave mode operation at high switching frequencies can be realized.

REFERENCES:
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patent: 4720668 (1988-01-01), Lee et al.
patent: 4841220 (1989-06-01), Tabisz et al.
patent: 4857822 (1989-08-01), Tabisz et al.
patent: 4866367 (1989-09-01), Ridley et al.
patent: 4891746 (1990-01-01), Bowman et al.
patent: 4931716 (1990-06-01), Jovanovic et al.
patent: 4959764 (1990-09-01), Bassett
Liu et al.; "Zero Voltage Switching Technique in DC/DC Converters"; PESC Records, 1986 (Dec.), pp. 58.intg.70.

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