RF saturation voltage sensor

Details RF saturation voltage sensor RF saturation voltage sensor

2011-01-11

2011-01-11

Le, Nhan (Department: 2618)

Telecommunications

Transmitter

Power control, power supply, or bias voltage supply

C455S115100

Reexamination Certificate

active

07869774

ABSTRACT:
An apparatus and method is disclosed for providing a sensor circuit to detect when an output stage of a radio frequency (RF) power amplifier is driven into a non-linear saturation region and provide an output detection signal that is representative of the degree of saturation of the output stage. The sensor circuit includes a detection element operably coupled with an output stage and a reference voltage element operably coupled with the detection element, the reference voltage element is capable of providing an output detection signal.

REFERENCES:
patent: 4780625 (1988-10-01), Zobel
patent: 5666077 (1997-09-01), Fournel et al.
patent: 7433658 (2008-10-01), Shirvani-Mahdavi et al.
patent: 2004/0002322 (2004-01-01), Krupezevic et al.
patent: 2004/0189398 (2004-09-01), Noh et al.

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