Power converter having parallel power switching systems coupled

Details Power converter having parallel power switching systems coupled Power converter having parallel power switching systems coupled

1989-05-16

1990-02-20

Wong, Peter S.

Electric power conversion systems

Current conversion

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

363 40, 323210, H02M 3335

Patent

active

049031813

ABSTRACT:
A power converter includes an input primary switching system with its output connected to phase shift or impedance inversion circuit. These two circuits cooperate to function as a current source at the output of the impedance inversion circuit. A secondary switching system is connected in parallel with the output of the impedance inversion circuit and is switched synchronously with a controlled phase delay to the input primary switching system to synchronously charge a charge storage capacitor. The phase delay determines the voltage of the charge storage capacitor. An output load circuit is connected in parallel with both the output of the impedance inversion circuit and the input to the secondary switching system so that the capacitor voltage determined by the phase delay is controlling of the output voltage of the output load circuit.

REFERENCES:
patent: 4024452 (1977-05-01), Seidel
patent: 4355243 (1982-10-01), Tellert
patent: 4484295 (1984-11-01), Bedard et al.
patent: 4535399 (1985-08-01), Szepesi
patent: 4709317 (1987-11-01), Iizuka et al.
"A High Power Factor Tuned Class D Converter", PESC '88 Record, Apr. 1988, Seidel, H., pp. 1038-1042.

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