Bidirectional switching circuit with control terminal

Details Bidirectional switching circuit with control terminal Bidirectional switching circuit with control terminal

1980-11-25

1982-09-21

Shoop, William M.

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

307255, 307252B, 323237, G05F 120

Patent

active

043509495

ABSTRACT:
A switching circuit whose current-to-voltage characteristic across a first terminal and a second terminal is a bidirectional and symmetrical breakdown characteristic, and arranged especially so that said breakdown voltage will vary in accordance with the variation of voltage applied to a controlling terminal. Said switching circuit, in case it is used as a trigger circuit for controlling the firing angle of a bidirectional thyristor, unfailingly performs actuation of the bidirectional thyristor without being much affected by such factors as the fluctuations of the power supply frequency and the power supply voltage.

REFERENCES:
patent: 3619656 (1971-11-01), Domke
patent: 3731182 (1973-05-01), Hirono et al.
patent: 4069446 (1978-01-01), Yonehara

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