Optically isolated bias control circuit

Details Optically isolated bias control circuit Optically isolated bias control circuit

2005-01-18

2005-01-18

Nguyen, Patricia (Department: 2817)

Amplifiers

Having light-controlled or activated device

C330S308000, C250S551000

Reexamination Certificate

active

06844779

ABSTRACT:
Optically isolated bias control circuit which provides bias current for switching circuits. Invention is amenable to high speed switching control with instantaneously variable pulse widths and duty cycles. Invention can be operated from DC upward in frequency, limited only by the characteristics of the implementing electrical components and electrical interconnections. Complementary embodiments of invention provide high speed operation with minimal electrical charge flow. Solar powered embodiments of invention may be used to control the switching of high power MOSFET-based switching circuits.

REFERENCES:
patent: 4516067 (1985-05-01), Hoffman
patent: 4712020 (1987-12-01), Basile
patent: 5563777 (1996-10-01), Miki et al.
patent: 5886508 (1999-03-01), Jutras
patent: 6466463 (2002-10-01), Morita
patent: 6504733 (2003-01-01), Watson, III et al.

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