Ignition equipment for light ignition thyristors

Radiant energy – Photocells; circuits and apparatus – Signal isolator

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307252A, 307117, G02B 2700, H03K 1760, H01H 3500

Patent

active

044750463

ABSTRACT:
An ignition equipment for light ignition thyristors for igniting a plurality of light ignition thyristors being connected in series with each other, which comprises an ignition circuit for generating a thyristor ignition electrical signal, a photoelectric conversion circuit receiving the thyristor ignition electrical signal to convert the same into a thyristor ignition light signal, a reverse voltage detecting means for detecting reverse voltage applied between an anode and cathode of each of the respective thyristors to transmit a reverse voltage detection signal, light guides for guiding the thyristor ignition light signal transmitted from the photoelectric conversion circuit to the thyristors, respectively, and light switches each inserted on the midway of each of the light guides and each interrupting the thyristor ignition light signal so as not to put the same into each of the thyristors while the reverse voltage is applied to each of the thyristors.

REFERENCES:
patent: 3355600 (1967-11-01), Mapham
patent: 3459943 (1969-08-01), Harnden, Jr.

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