Protective circuitry for transistorized d-c/d-c converter

Details Protective circuitry for transistorized d-c/d-c converter Protective circuitry for transistorized d-c/d-c converter

1980-05-06

1983-01-18

Shoop, William M.

Electric power conversion systems

Current conversion

Including automatic or integral protection means

363 49, 363133, H02H 7122

Patent

active

043694918

ABSTRACT:
A d-c/d-c converter has two switching transistors connected in push-pull across respective primary halves of an output transformer working into a full-wave rectifier, these primary halves lying in parallel with the primary of a self-saturating feedback transformer whose secondary is split into halves respectively inserted in the emitter/base circuits of the two transistors. The primary of the feedback transformer is shunted by a protective network which comprises a capacitor in series with a rectifier bridge; the network may also include one or two thyristors fired in response to an excessive collector current drawn by the transistors.

REFERENCES:
patent: 2883539 (1959-04-01), Bruck et al.
patent: 2922958 (1960-01-01), Dean
patent: 3119058 (1964-01-01), Genuit
patent: 3387229 (1968-06-01), Corey
patent: 3458833 (1969-07-01), Lingle
patent: 4164014 (1979-08-01), Crowe et al.

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