Amplifier device

Details Amplifier device Amplifier device

2006-08-22

2006-08-22

Mottola, Steven J. (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including particular biasing arrangement

C330S261000

Reexamination Certificate

active

07095284

ABSTRACT:
An amplifier device, including: at least one input contact, an amplifier section for amplifying a signal presented at said input contacts whereby an amplified signal is obtained; said amplifier section being connected to said input contact; a bias current source connected to said amplifier section for providing a bias current which at least partially controls the gain of the amplifier section, at least one output contact connected to the amplifier section, for receiving the amplified signal from the amplifier section and transmitting the amplified signal further. The bias current source is an alternating current source having an adjustable duty cycle.

REFERENCES:
patent: 5153528 (1992-10-01), Back et al.
patent: 5229731 (1993-07-01), Yamamoto
patent: 5287071 (1994-02-01), Olmstead et al.
patent: 6947720 (2005-09-01), Razavi et al.

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