公开(公告)号：WO1996007236A1

公开(公告)日：1996-03-07

申请号：PCT/US1995010553

申请日：1995-08-18

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  EBERHARDT, John, E. ,  BELLOTTI, Enrico

IPC: H03F01/30

CPC classification number: H03F1/302

Abstract: A transceiver (100) includes a radio frequency power amplifier (116) which is biased by an active bias circuit (110). Active bias circuit (110) provides a low cost bias circuit for amplifier (116) which adjusts the bias over changes in temperature and supply voltage levels to provide a constant output power. A set of control inputs (122-126) coming from controller (108) provide for power output level adjustement for the amplifier (116) in a frequency modulated (FM) environment and for both power and modulation level adjustments in an amplitude modulated (AM) environment.

Abstract translation: 收发器（100）包括由有源偏置电路（110）偏置的射频功率放大器（116）。 有源偏置电路（110）为放大器（116）提供了一种低成本偏置电路，该电路调节偏置温度和电源电压电平的偏差，以提供恒定的输出功率。 来自控制器（108）的一组控制输入（122-126）提供在调频（FM）环境中用于放大器（116）的功率输出电平调整，并且用于幅度调制（AM）中的功率和调制电平调整 ） 环境。

公开(公告)号：EP0777932A1

公开(公告)日：1997-06-11

申请号：EP95929619.0

申请日：1995-08-18

Applicant: MOTOROLA, INC.

Inventor： EBERHARDT, John, E. ,  BELLOTTI, Enrico

IPC: H03F1

CPC classification number: H03F1/302

Abstract: A transceiver (100) includes a radio frequency power amplifier (116) which is biased by an active bias circuit (110). Active bias circuit (110) provides a low cost bias circuit for amplifier (116) which adjusts the bias over changes in temperature and supply voltage levels to provide a constant output power. A set of control inputs (122-126) coming from controller (108) provide for power output level adjustement for the amplifier (116) in a frequency modulated (FM) environment and for both power and modulation level adjustments in an amplitude modulated (AM) environment.