Overload protection circuit for voltage regulator

Details Overload protection circuit for voltage regulator Overload protection circuit for voltage regulator

1975-11-10

1977-03-22

Miller, J D

Electricity: electrical systems and devices

Safety and protection of systems and devices

Voltage regulator protective circuits

361 91, H02H 720

Patent

active

040139255

ABSTRACT:
When the load current of a voltage regulator rises above a safe value for sustained operation, a limiting circuit is activated to prevent further rise. At the same time, a capacitor in a timing circuit is being charged so that if the overload condition continues beyond a predetermined amount, the capacitor voltage will trigger a latching circuit to shut off the regulator. The regulator is reset by merely turning off the supply long enough to allow the capacitor to discharge.

REFERENCES:
patent: 3109980 (1963-11-01), Wiley
patent: 3125715 (1964-03-01), Brooks
patent: 3327201 (1967-06-01), Brantley
patent: 3432726 (1969-03-01), Meyer et al.
patent: 3527997 (1970-09-01), Nercessian
patent: 3534249 (1970-10-01), Neill et al.
patent: 3703679 (1972-11-01), Heidt
patent: 3714512 (1973-01-01), Grabowski
patent: 3748569 (1973-07-01), Frank

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