Electric power conversion systems – Current conversion – Including automatic or integral protection means
Patent
1991-10-02
1993-07-13
Stephan, Steven L.
Electric power conversion systems
Current conversion
Including automatic or integral protection means
363 21, H02M 75387
Patent
active
052279642
ABSTRACT:
A switching power supply having an overcurrent protective circuit which includes a detection resistor for detecting the primary current of a transformer to produce a detected voltage, a reference voltage circuit for producing a reference voltage, and an amplifier. The amplifier produces an overcurrent protective signal when the detected voltage exceeds the reference voltage, and supplies the overcurrent protective signal to the control terminal of a switching device which switches the primary current so that a drive signal for the switching device is decreased when an overcurrent of the secondary current occurs. The overcurrent is limited to a value equal to or less than the rated current of the switching power supply without an instantaneous interruption of the power.
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Bessyo et al., "A New Switching Power Supply for Magnetron Using a New Device and a Novel Transformere," PCIM '88 Proceedings, pp. 371-378.
Davidson Ben
Fuji Electric & Co., Ltd.
Stephan Steven L.
LandOfFree
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