Output control circuit for transmission power amplifying circuit

Details Output control circuit for transmission power amplifying circuit Output control circuit for transmission power amplifying circuit

1995-12-26

1998-07-21

Crosland, Donnie L.

Telecommunications

Transmitter

With feedback of modulated output signal

455127, 330137, 330279, H04B 106, H03G 310

Patent

active

057846898

ABSTRACT:
A higher output of two outputs from a trapezoidal wave generating circuit 4 and a pulse generating circuit 5 is produced. The control voltage signal is formed by combining the trapezoidal wave signal and the pulse signal. Sharp rising and falling edges of the pulse voltage are selected for controlling the transmission power amplifying circuit 1 in a voltage range below a predetermined voltage level, whereas gentle rising and falling edges of the trapezoidal wave signal are used for controlling the circuit 1 in a voltage range above that voltage level.

REFERENCES:
patent: 5194823 (1993-03-01), Wendt et al.
patent: 5309115 (1994-05-01), Hashimoto et al.
patent: 5511239 (1996-04-01), Dennerlein et al.

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