Overload protection for a voltage conversion circuit

Details Overload protection for a voltage conversion circuit Overload protection for a voltage conversion circuit

1980-03-31

1981-12-29

Miller, J. D.

Electric power conversion systems

Current conversion

Including automatic or integral protection means

323285, H02M 353

Patent

active

043085768

ABSTRACT:
A voltage converter of the transformer type which incorporates at least one switching transistor coupled to control the application of current to the transformer primary and circuitry for switching the transistor on and off to control the current through the primary winding. When the output of the converter is shorted, the switching rate undesirably increases causing potential damage to the converter. A frequency detecting circuit detects the increase in switching frequency and acts to reduce the input voltage to the converter to prevent damage thereto.

REFERENCES:
patent: 3769568 (1973-10-01), Hamilton et al.
patent: 4251857 (1981-02-01), Shelly

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