Peak shut-off electronic switch

Details Peak shut-off electronic switch Peak shut-off electronic switch

1976-03-15

1977-07-19

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

179 15AT, 307237, 307253, 323225C, H03K 1772

Patent

active

040371174

ABSTRACT:
A control transistor and a pnpn device are arranged in serial combination with each other, as well as with a source of alternating current and a load. The transistor and pnpn device in combination behave as a two-state semiconductor switch for switching cyclically varying currents and voltages of amplitude greater than the punch-through voltage limit of the transistor. The switch conducts an unrectified, cyclically varying waveform by operation of a diode biasing scheme. Circuitry responsive to voltage peaks of the source causes the transistor to periodically open the circuit for a short duration, thereby discontinuing the transmission of energy to the load within a fraction of a cycle after a discontinuation command signal is received.

REFERENCES:
patent: 3217176 (1965-11-01), Chin
patent: 3240916 (1966-03-01), Bray et al.

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