Power on/off protect circuit

Details Power on/off protect circuit Power on/off protect circuit

1983-09-30

1985-01-08

Salce, Patrick R.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific voltage responsive fault sensor

361 86, 361 90, 307200A, H02H 324

Patent

active

044930003

ABSTRACT:
A simplified power on/off protect circuit is provided to enable logic above a predetermined power supply voltage level and disable the logic below such predetermined voltage level. The circuit comprises a zener diode in combination with a transistor such that the zener controls the voltage level at which the transistor turns on. The transistor enables the logic.

REFERENCES:
patent: 3522521 (1970-08-01), Lloyd
patent: 3774109 (1973-11-01), Janycky
patent: 4228475 (1983-10-01), Sherwood
patent: 4232236 (1980-11-01), Yomogida et al.
patent: 4365295 (1982-12-01), Katzman et al.
patent: 4379332 (1983-04-01), Busser et al.
patent: 4428020 (1984-01-01), Blanchard, Jr.

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