Amplifying device and transmission output control apparatus

Details Amplifying device and transmission output control apparatus Amplifying device and transmission output control apparatus

1997-07-29

1999-05-11

Pascal, Robert

Amplifiers

With semiconductor amplifying device

Including gain control means

330285, H03F3/30

Patent

active

059031930

ABSTRACT:
A second drain voltage switch is provided to turn ON/OFF a drain voltage in an amplifier in the final stage, the drain voltage in the amplifier in the final stage is turned ON when large output power is required, and the drain voltage in the amplifier in the final stage is turned OFF when small output power is required, thus a transmission output control apparatus capable of controlling output power in a wide range being obtained.

REFERENCES:
patent: 5083096 (1992-01-01), Miyazaki
patent: 5086508 (1992-02-01), Furuno
patent: 5648742 (1997-07-01), Ghaffaripour
patent: 5663681 (1997-09-01), Botti et al.
patent: 5752171 (1998-05-01), Akiya

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