Measuring circuit for the output of a power amplifier and a...

Details Measuring circuit for the output of a power amplifier and a... Measuring circuit for the output of a power amplifier and a...

2006-09-25

2008-03-18

Nguyen, Khanh Van (Department: 2817)

Amplifiers

With control of power supply or bias voltage

With control of input electrode or gain control electrode bias

C330S002000

Reexamination Certificate

active

07345538

ABSTRACT:
A measuring circuit for the output of a power amplifier and a power amplifier comprising the measuring circuit comprises a first transistor (4f). The output current (27) of the first transistor (4f) is characteristic of the output current (28) of the amplifier (20), in particular, the above is essentially proportional to the output current (28) of the amplifier (20). The first transistor (4f) is controlled in parallel to at least one second transistor (4a-4e), driving the amplifier output (8).

REFERENCES:
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patent: 6424191 (2002-07-01), Nayebi et al.
patent: 2002/0118034 (2002-08-01), Laureanti
patent: 69101386 (1994-10-01), None
patent: 9614665 (1996-05-01), None
patent: 2005096005 (2005-10-01), None
International Search Report with Written Opinion, PCT/DE2005/00429, 7 pages. Mailed on Jul. 26, 2005.

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