Power converter

Details Power converter Power converter

1979-06-29

1981-11-03

Shoop, William M.

Electric power conversion systems

Current conversion

Using semiconductor-type converter

363 61, 363 17, 331113R, H02M 7537, H02M 725

Patent

active

042989264

ABSTRACT:
A DC-to-DC converter employs four transistor switches in a bridge to chop DC power from a source, and a voltage multiplying diode rectifying ladder network to rectify and filter the chopped DC power for delivery to a load. The bridge switches are cross-coupled in order for diagonally opposite pairs to turn on and off together using RC networks for the cross-coupling to achieve the mode of operation of a free running multivibrator, and the diode rectifying ladder is configured to operate in a push-pull mode driven from opposite sides of the multivibrator outputs of the bridge switches. The four transistor switches provide a squarewave output voltage which has a peak-to-peak amplitude that is twice the input DC voltage, and is thus useful as a DC-to-AC inverter.

REFERENCES:
patent: 3465231 (1969-09-01), Hyde
patent: 3579078 (1971-05-01), Cronin et al.
patent: 3596146 (1971-07-01), McDonald
patent: 3723846 (1973-03-01), Thompson, Jr.
patent: 3902108 (1975-08-01), Sion
D. D. Baumann, "Free Running Bridge Inverter", IBM Technical Disclosure Bulletin, vol. 9, No. 10, Mar. 1967, p. 1462.
Millman & Taub, "Pulse, Digital and Switching Waveforms", McGraw-Hill, 1965, Section 11-12, pp. 438-441.

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