Synchronous rectification and adjustment of regulator output vol

Details Synchronous rectification and adjustment of regulator output vol Synchronous rectification and adjustment of regulator output vol

1992-08-27

1995-03-07

Sterrett, Jeffrey L.

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

363127, 323222, 323266, 323282, H02M 7217

Patent

active

053964128

ABSTRACT:
Output voltage of a switching regulator is rectified and adjusted by the internal body diode of an FET. When the output voltage exceeds a reference voltage, the FET is gated off, causing the internal body diode to reduce the output voltage by a diode drop. When the FET is turned on, the diode is shorted and, as a result, the output voltage is increased by a finite amount of additional energy. This adjustment range, a diode drop, is significant for low voltage, wide bandwidth power supplies.

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Application Note U-103 "Using Bipolar Synchronous Rectifiers Improves Power Supply Efficiency", pp. 312-318, Jan. 8, 1991.

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