Optocoupler package wth integral voltage isolation barrier

Details Optocoupler package wth integral voltage isolation barrier Optocoupler package wth integral voltage isolation barrier

1993-04-30

1994-08-23

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Signal isolator

257 82, G02B 2700

Patent

active

053409930

ABSTRACT:
An optocoupler package made up from a pre-assembled package having a leadframe, a voltage isolation barrier, and a body molded from a reflective plastic material. The voltage isolation barrier is fabricated as part of the body and positioned in such a way as to substantially increase the electrical flashover path between the optical source and the optical detector. An optical source mounted in the pre-assembled package subsequent to fabrication of the molded body. An optical detector is optically coupled to the optical source by reflection within the pre-assembled package, the optical detector being mounted in the pre-assembled package subsequent to fabrication of the molded body A reflective plastic cover is bonded to the pre-assembled package.

REFERENCES:
patent: 4054801 (1977-10-01), Breval et al.
patent: 4309605 (1982-01-01), Okabe
patent: 4322628 (1982-03-01), Tanaka
patent: 4450461 (1984-05-01), Cook et al.
patent: 4645551 (1987-02-01), Adams et al.
patent: 4962395 (1990-10-01), Baird
patent: 4972089 (1990-11-01), Stevenson

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