Optocoupler having improved isolation

Details Optocoupler having improved isolation Optocoupler having improved isolation

1980-02-25

1981-06-02

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Signal isolator

357 11, G02B 2700

Patent

active

042713650

ABSTRACT:
The isolation voltage of an optocoupler including a light transmissive inner region and a reflective or opaque outer region, the interface between such regions being intersected by input and output terminals, is improved by providing a layer of breakdown voltage enhancing material at the interface. In accordance with a preferred embodiment of the invention, a layer of glass frit is provided at the interface, the particles comprising the frit extending into each of the regions.

REFERENCES:
patent: 4160308 (1979-07-01), Courtney et al.

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