Circuit for error free operation of opto-isolated driver during

Details Circuit for error free operation of opto-isolated driver during Circuit for error free operation of opto-isolated driver during

1996-12-09

1998-06-16

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

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327317, 257 82, 257 84, 250206, H01L 3100

Patent

active

057677310

ABSTRACT:
A protection circuit for preventing momentary activation of the output of an output-isolated driver during power turn on. The protection circuit operates in a manner which prevents a buffer which is driven by the opto-isolator from turning on power transistors during power turn on, particularly in applications such as switching power supplies, motor controllers and the like.

REFERENCES:
patent: 4263521 (1981-04-01), Senger
patent: 4417099 (1983-11-01), Pierce
patent: 4766471 (1988-08-01), Ovshinsky et al.
patent: 5283441 (1994-02-01), Fabian

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