Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Reexamination Certificate
2006-01-31
2006-01-31
Callahan, Timothy P. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
C327S484000, C330S296000
Reexamination Certificate
active
06992524
ABSTRACT:
A bias control circuit for controlling a bias circuit coupled to an amplifier transistor. The bias control circuit receives a control voltage, and actively adjusts an equivalent resistance of the bias control circuit responsive to the control voltage, wherein the equivalent resistance is established between a first node and a reference voltage. In one embodiment, when the control voltage is increased, the equivalent resistance is gradually decreased and a current drawn by the bias control circuit is gradually increased, resulting in a quiescent current of the amplifier transistor being gradually increased.
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patent: 2005/0062528 (2005-03-01), Kuriyama
Choi Kevin
Park Bong-Seok
Yang Youn-goo
Callahan Timothy P.
Englund Terry L.
Farjami & Farjami LLP
Skyworks Solutions Inc.
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