Electronic switch with automatic protective turn-off followed by

Details Electronic switch with automatic protective turn-off followed by Electronic switch with automatic protective turn-off followed by

1984-08-10

1987-08-11

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307571, 307584, 361 98, 361 91, 361 56, 361 75, H02H 320, H03K 1708, H03K 17687

Patent

active

046863834

ABSTRACT:
A switch transistor (V1) has a controlled pathconnected in a circuit (P-Q) to be switched, and Control signals are supplied (ID) to its control electrode to switch it on. If, in the ON state the potential difference across the switch exceeds a threshold value, trip means (T1) are actuated to turn the switch transistor off. To prevent premature tripping, delay means R2, C3 disable the trip means (by holding off T3) for a short period following switch on, but is arranged so as not to delay the trip action once that period has expired.

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IEEE International Solid-State Circuits Conference, Digest of Technical Papers, Feb. 1981, W. H. A. Mattheus: "400V switches for subscriber line interface", pp. 238-239.

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