Self-extinguishing load driving system

Details Self-extinguishing load driving system Self-extinguishing load driving system

1981-12-28

1984-04-03

Beha, Jr., William H.

Electricity: power supply or regulation systems

Output level responsive

Phase controlled switching using electronic tube or a three...

219494, 219501, 219508, 307252B, 323245, G05F 500

Patent

active

044410697

ABSTRACT:
A load and the main conductions paths of first and second TRIACs are connected in series between first and second power terminals across which an alternating voltage is applied. The first TRIAC is for controlling the power dissipated in the load and the second TRIAC is for unconditionally removing power to the load a predetermined time after the first and second TRIACs are turned-on. The first and second TRIACs are interconnected so that the main terminal 1 (MT1) of one is connected to the main terminal 1 (MT1) of the other at a common point. A control circuit for turning-on and turning-off each TRIAC is connected between the gate electrode of each TRIAC and the common point.

REFERENCES:
patent: 4129791 (1978-12-01), Sato
patent: 4198562 (1980-04-01), Mills et al.
patent: 4268779 (1981-05-01), Eichelberger et al.
patent: 4315141 (1982-02-01), Mills et al.
patent: 4357524 (1982-11-01), Apfelbeck
Application Note AN-6936, Entitled Thyristors, Published by RCA, Jan. 1981.

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