Power supply with overcurrent protection

Details Power supply with overcurrent protection Power supply with overcurrent protection

1976-12-29

1978-05-30

Shoop, William M.

Electric power conversion systems

Current conversion

Including automatic or integral protection means

363 80, 363 97, 307 35, H02M 118

Patent

active

040927083

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. An overcurrent sensing and control device prevents damage to components.

REFERENCES:
patent: 3596165 (1971-07-01), Andrews
patent: 3742371 (1973-06-01), Seibt et al.
patent: 3859586 (1975-01-01), Wadlington

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