Miniature, low cost power amplifier monitor

Details Miniature, low cost power amplifier monitor Miniature, low cost power amplifier monitor

1993-11-24

1995-06-06

Sikes, William L.

Amplifiers

With amplifier condition indicating or testing means

330295, 330124R, G01R 2100

Patent

active

054225957

ABSTRACT:
According to the present invention, a power amplifier with a plurality of power transistors has detection circuitry corresponding to each power transistor which detects the output power of the power transistors and allows this output power to be monitored and modified if desired. The detection circuitry generates a voltage output signal indicative of the rise and fall times achieved by the power transistor. The voltage output signal of the detection circuitry may be monitored by connecting the voltage output signal to a measuring device, such as an oscilloscope of built-in-test-equipment (BITE). Additionally, the voltage output signal of the detection circuitry may be modified by tuning input matching circuitry and/or output matching circuitry accordingly.

REFERENCES:
patent: 3711782 (1973-01-01), Perrero et al.
patent: 5117202 (1992-05-01), Tsuruoka
patent: 5314458 (1994-05-01), Najafi et al.

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