Control circuit for switching triacs

Details Control circuit for switching triacs Control circuit for switching triacs

1974-09-16

1976-01-13

Heyman, John S.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307252B, 307311, H03K 1700

Patent

active

039327701

ABSTRACT:
A circuit comprising an A.C. source, a load and a TRIAC for supplying A.C. power to the load from the source. The TRIAC includes first, second, and gating electrodes with the first electrode being connected in series with the load. The A.C. source is applied across the TRIAC and the load. A trigger circuit is provided for the TRIAC comprising a photodarlington circuit and a circuit for biasing the photodarlington circuit to its quiescent state in the absence of a light signal and for making the photodarlington circuit conductive and enabling it to apply a negative voltage to the gate electrode of the TRIAC to make the TRIAC conductive in the presence of a light signal.

REFERENCES:
patent: 3284695 (1966-11-01), Welsz
patent: 3412293 (1968-11-01), Maupin
patent: 3459943 (1969-08-01), Harnden
patent: 3663838 (1972-05-01), Reimers
patent: 3693027 (1972-09-01), Garaway
patent: 3693060 (1972-09-01), Joyce
patent: 3700319 (1972-10-01), Gallina
patent: 3723769 (1973-03-01), Collins
patent: 3812382 (1974-05-01), Pascente
optical Link Isolates Low-Cost Solid-State Relay, EDN-EE, 5/15/71--p. 69.
Using the Triac for Control of AC Power -- GE Application Note -- 3/66, pp. 1.

Affiliated with

Also associated with

Rating

Control circuit for switching triacs does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Control circuit for switching triacs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control circuit for switching triacs will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-749050