Switch mode power supply circuit

Details Switch mode power supply circuit Switch mode power supply circuit

1995-05-31

1997-08-12

Hecker, Stuart N.

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

363 49, H02M 324, H02M 744

Patent

active

056572182

ABSTRACT:
In a switch mode power supply which includes a transformer for DC isolation and a switching transistor, a control transistor which controls the switching transistor is switched on by an appropriate control voltage during the isolating phase until the collector voltage of the switching transistor has fallen to a minimum. The control transistor is preferably switched on during the isolating discharge time and the subsequent oscillation phase of the transformer.

REFERENCES:
patent: 4246634 (1981-01-01), Purol
patent: 5285369 (1994-02-01), Balakrishnan
patent: 5452195 (1995-09-01), Lehr et al.
patent: 5469349 (1995-11-01), Marinus

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