Constant frequency power converter

Details Constant frequency power converter Constant frequency power converter

1991-03-04

1992-08-18

Voeltz, Emanuel T.

Electric power conversion systems

Current conversion

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

363 98, 363132, H02M 3335

Patent

active

051405105

ABSTRACT:
A constant frequency power converter which includes a system to switch a resonant capacitive or inductive element during the power transfer cycle in a clamped series resonant converter. A feedback control system generates a pulse width modulated signal to switch the resonant element at the appropriate time. A conventional power MOSFET can be used as the switching device. The resonant control elements may be operated in series or parallel depending on the basic resonant topology selected. Applications include high frequency power converters where small size is of prime concern.

REFERENCES:
patent: 4679129 (1987-07-01), Sakakibara et al.
patent: 4691273 (1987-09-01), Kuwata et al.
patent: 4845605 (1989-07-01), Steigerwald
patent: 4858099 (1989-08-01), McMillan et al.
patent: 4992919 (1991-02-01), Lee et al.
"Constant-Frequency Zero-Voltage-Switched Multi-Resonant Converters:Analysis, Design, and Experimental Results", Farrington et al, IEEE 1990, pp. 197-205.
"Development of a Multiple Output Resonant Converter for Space Applications", Temkin et al, IEEE 1988, pp. 167-181.
"Resonant Converter Controlled by Variable Capacitance Devices", Harada et al; IEEE 1990, pp. 273-280.

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