Circuit arrangement for limiting the current at make of a capaci

Details Circuit arrangement for limiting the current at make of a capaci Circuit arrangement for limiting the current at make of a capaci

1998-12-02

1999-11-30

Riley, Shawn

Electricity: power supply or regulation systems

Including an impedance

Thermistor or resistor

323901, 363 49, H03H 100

Patent

active

059948892

ABSTRACT:
A circuit arrangement for limiting the current at make which includes hot-carrier thermistors that see to a reduction of the current flow at make. Only when a further hot-carrier thermistor has been adequately heated by the flow of current are the hot-carrier thermistors bridged, and the capacitative load receives the full operating voltage. After turn-off, an ambient temperature-compensated voltage divider at the base of a transistor prevents the immediate re-activation until the further hot-carrier thermistor and, thus, all hot-carrier thermistors, have adequately cooled.

REFERENCES:
patent: 4668903 (1987-05-01), Elbert

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