Bias circuit

Details Bias circuit Bias circuit

2008-04-08

2008-04-08

Nguyen, Khanh Van (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including particular biasing arrangement

C330S285000, C330S289000

Reexamination Certificate

active

07355480

ABSTRACT:
A bias circuit includes a voltage stabilizer connected between a control voltage input terminal through a current limit resistor and a ground, a bias supply emitter follower with a base connected to a node between the current limit resistor and the voltage stabilizer through a resistor, and a current limiter connected between the base and an emitter of the bias supply emitter follower.

REFERENCES:
patent: 6492869 (2002-12-01), Kuriyama
patent: 6806775 (2004-10-01), Abe
patent: 6816017 (2004-11-01), Yamashita et al.
patent: 6946913 (2005-09-01), Moriwaki et al.
patent: 7009453 (2006-03-01), Kuriyama
patent: 2002/0024390 (2002-02-01), Yamashita et al.
patent: 2004/0056721 (2004-03-01), Lesage et al.
patent: 2004/0189398 (2004-09-01), Noh et al.
patent: 2004/0251967 (2004-12-01), Moriwaki et al.
patent: 2002-9558 (2002-01-01), None
patent: WO 03/105338 (2003-12-01), None
European Search Report dated Jun. 7, 2006 with English- Language Translation.

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