Power supply with base drive control

Details Power supply with base drive control Power supply with base drive control

1976-12-29

1977-10-25

Shoop, William M.

Electric power conversion systems

Current conversion

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

307 31, 363 25, H02M 700

Patent

active

040557901

ABSTRACT:
A power supply provides a low-level DC voltage to DC load circuits by first rectifying the standard AC voltage and thereafter reducing the rectified AC voltage to the low-level DC voltage. The reduction of the rectified AC voltage to the low-level DC voltage is accomplished by a power transformer which is switched on or off by a pair of switching transistors. The switching transistors are operated in a "push-pull" mode by a pair of control transformers operating in combination with a control circuit. The control circuit produces various pulse conditions in the control transformers which turn their respective switching transistors on and off in a prescribed manner.

REFERENCES:
patent: 3439251 (1969-04-01), Schaefer
patent: 3531737 (1970-09-01), Thakore
patent: 3582754 (1971-06-01), Hoffmann et al.
patent: 3818306 (1974-06-01), Marini
patent: 3863140 (1975-01-01), Easter et al.
patent: 4011494 (1977-03-01), Saka

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