Switching transient suppression circuit

Details Switching transient suppression circuit Switching transient suppression circuit

1975-12-18

1977-01-25

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307290, 340365E, H03K 501, H01H 3358, H01H 700

Patent

active

040053164

ABSTRACT:
A circuit responsive to a change in the state of a switch for suppressing spurious electrical pulses associated with switch contact opening and closing. The suppression circuit includes a dual Schmitt trigger having its individual trigger circuits connected in series and having the input of the first trigger stage clamped to a first output of the first trigger stage to delay firing of the trigger circuits until switching transients have subsided. The dual trigger is provided with an output disable input whereby outputs of the series connected trigger circuits may be caused to assume a high resistance state thereby permitting a plurality of the suppression circuits to be connected between input switches and a common logic bus.

REFERENCES:
patent: 3513333 (1970-05-01), Andersen
patent: 3715747 (1973-02-01), Hanson et al.

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