Regulated power supply crow-bar protection

Details Regulated power supply crow-bar protection Regulated power supply crow-bar protection

1976-11-11

1978-05-16

Pellinen, A. D.

Electricity: power supply or regulation systems

Remote sensing

361 18, G05F 158

Patent

active

040901238

ABSTRACT:
When a regulated power supply incorporating a series pass transistor as the regulating element is crow-barred, the control circuitry continues to drive the pass transistor to maximum available current. The pass transistor may be overheated and eventually both the pass transistor and the crow-bar itself may be damaged. To prevent this latter from happening, the drive to the pass transistor is cut back in response to the actuation of the crow-bar.

REFERENCES:
patent: 3736491 (1973-05-01), Kuster
patent: 3796919 (1974-03-01), Johnson
patent: 3816809 (1974-06-01), Kuster
patent: 3819986 (1974-06-01), Fukuoka
Summer, "SCR Crowbar Circuit Fires Quickly and Surely", Electronics, vol. 47, No. 3, Feb. 7, 1974, pp. 104, 323-328.

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