Direct current power supply

Details Direct current power supply Direct current power supply

1976-11-01

1978-10-24

Pellinen, A. D.

Electric power conversion systems

Current conversion

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

307 39, 323DIG1, 363 26, 363 88, 363124, H02M 3335

Patent

active

041225147

ABSTRACT:
A direct current voltage power supply in which spaced pulses of current are made to flow through the primary winding of a power transformer. The anode-cathode path of an SCR device is connected from a point on a secondary winding to an output capacitor. A pulse width modulation circuit and a base drive circuit are connected between the output capacitor and the gate electrode of the SCR device so as to apply a pulse to the gate electrode that enables conduction between the source and drain electrodes whenever the voltage across the output capacitor drops below a given reference value.

REFERENCES:
patent: 3434030 (1969-03-01), Bedford
patent: 3543139 (1970-11-01), Greene
patent: 3569818 (1971-03-01), Dahlinger et al.
patent: 3571691 (1971-03-01), Iwata et al.
patent: 3621363 (1971-11-01), Ginnman et al.
patent: 3624405 (1971-11-01), Bishop et al.
patent: 3681678 (1972-08-01), Holmquest
patent: 3815015 (1974-06-01), Swin et al.
patent: 3935526 (1976-01-01), Kamata et al.
Singleton, "Wide Range Uniformly High-Efficiency DC-DC Converter," IMBTDB, vol. 15, No. 4, Sep. 1972, pp. 1359, 1360.

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