Power supply for totem pole power switches

Details Power supply for totem pole power switches Power supply for totem pole power switches

1986-11-26

1987-10-27

Wong, Peter S.

Electric power conversion systems

Current conversion

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

323271, 320 1, H02M 3335

Patent

active

047034076

ABSTRACT:
An improved power supply for power switches arranged in a totem pole configuration is disclosed. A single power supply, having an output voltage substantially less than the voltage applied to the upper power switch, periodically charges a capacitor within a flying capacitor circuit. Microprocessor based control circuitry controls the charging and discharging of the capacitor and the periodic operation of the power switches resulting in the voltage at the output of the power switches being at system common or at the voltage applied to the upper power switch.

REFERENCES:
patent: 3943428 (1976-03-01), Whidden
patent: 4288738 (1981-09-01), Rogers et al.
patent: 4322636 (1982-03-01), Schroder
patent: 4395675 (1983-07-01), Toumani

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