CMOS RF power amplifier with LDMOS bias circuit for large...

Details CMOS RF power amplifier with LDMOS bias circuit for large... CMOS RF power amplifier with LDMOS bias circuit for large...

2009-04-27

2011-12-06

Nguyen, Patricia (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including particular biasing arrangement

C330S288000, C330S269000

Reexamination Certificate

active

08072270

ABSTRACT:
Bias circuitry that may be used within a communications or other device includes a first current mirror having first and second transistors with sources coupled to ground and operable to receive a reference current at a drain of first transistor. A second current mirror has first and second transistors with drains coupled to a battery voltage supply. A third current mirror has first and second transistors with drains coupled to sources of the first and second transistors of the second current mirror, respectively. A biasing transistor couples between the second transistor of the first current mirror and the first transistor of the third current mirror and operable to receive a tuning input voltage at its gate. A resistive element coupled between the second transistor of the third current mirror and ground produces a bias voltage produced at a connection of the resistive element and the second transistor of the third current mirror.

REFERENCES:
patent: 5696459 (1997-12-01), Neugebauer et al.
patent: 6816012 (2004-11-01), Aoki et al.
patent: 6970022 (2005-11-01), Miller
patent: 7102434 (2006-09-01), Grillo
patent: 7109796 (2006-09-01), Heigelmayer et al.
patent: 7135928 (2006-11-01), Behzad
patent: 7138875 (2006-11-01), Murari et al.
patent: 7397085 (2008-07-01), Marshall
patent: 7656229 (2010-02-01), Deng et al.
patent: 7821339 (2010-10-01), Afsahi

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