Transistorized power supply drive circuit arrangement

Details Transistorized power supply drive circuit arrangement Transistorized power supply drive circuit arrangement

1977-11-23

1979-04-17

Shoop, William M.

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

363 25, H02M 7537

Patent

active

041504267

ABSTRACT:
In a switched mode power supply of the push-pull type the drive to each output transistor is terminated just after its collector current reaches the value which the collector current of the other transistor had when the drive thereto was removed in the immediately preceding conduction period, in order to substantially equalize the drive to the output transformer contributed by each output transistor. This is done by means of sampling and storage circuits which store signals representative of the values of the collector currents in the two output transistors which occur when their drive is removed in combination with a comparison circuit which compares each stored value with the collector current of that transistor which conducts during the next conduction period.

REFERENCES:
patent: 3657631 (1972-04-01), Martens et al.
patent: 3737756 (1973-06-01), Hasley et al.

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