Amplifier signal level detector for a mobile communication syste

Details Amplifier signal level detector for a mobile communication syste Amplifier signal level detector for a mobile communication syste

1992-08-13

1994-02-01

Mullins, James B.

Amplifiers

With amplifier condition indicating or testing means

330134, 330279, G01R 1900, H03G 320

Patent

active

052835332

ABSTRACT:
A detector for detecting changes in the output level of an amplifier included in, for example, a mobile communication signal. A first detecting circuit produces a detected voltage having linearity against low output levels of the amplifier. A second detecting circuit produces a detected voltage which is linear against high output levels of the amplifier. The detected voltages from the first and second detecting circuits are mixed by a mixer in a predetermined ratio. Even when the output level of the amplifier changes over a broad dynamic range, the detector detects the changes with accuracy.

REFERENCES:
patent: 3434065 (1969-03-01), Chu et al.

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