Self-balancing push-pull square wave converter type of switched

Details Self-balancing push-pull square wave converter type of switched Self-balancing push-pull square wave converter type of switched

1985-09-23

1987-04-07

Salce, Patrick R.

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

363 41, H02M 3335

Patent

active

046565701

ABSTRACT:
A switched power supply of the self-balancing push-pull square-wave converter type which includes a pair of switching transistors connected to the primary of a transformer and which are driven by a square-wave oscillator, and which also includes a pre-regulator chopper connected to the transistors. A ripple voltage appears on the output of the pre-regulator which is a function of the current flow through the individual transistors, and this voltage is coupled through a capacitor and a series resistor to the square-wave oscillator to terminate the drive current through each transistor for each cycle in which the current flow through the transistor exceeds a predetermined maximum.

REFERENCES:
patent: 4034280 (1977-07-01), Cronin et al.
patent: 4070701 (1978-01-01), Harnden, Jr. et al.

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