MOSFET fullbridge switching regulator having transformer coupled

Details MOSFET fullbridge switching regulator having transformer coupled MOSFET fullbridge switching regulator having transformer coupled

1987-10-30

1988-07-19

Beha, Jr., William H.

Electric power conversion systems

Current conversion

Using semiconductor-type converter

307584, 363 17, 363 98, H02M 75387

Patent

active

047589418

ABSTRACT:
An FET full bridge regulator has a driving transformer for the gates of the power FETs of the regulator, and a driving circuit for the primary of the driving transformer, the driving circuit including a full bridge formed by first and second sets of driving FETs, each set formed by a complementary pair of FETs and being connected across the transformer, primary, one FET of each set being driven ON to together form a series of conducting paths across the primary of the transformer in the absense of driving signals.
The voltage supply for the driving FETS in the driving circuits of the primary of the driving transformer includes a resistance across which there is developed a voltage proportional to the current drawn by the driving transformer primary in each half cycle of its operation for reducing imbalance between the half cycles.

REFERENCES:
patent: 4319316 (1982-03-01), Farrer et al.

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