公开(公告)号：US20090015326A1

公开(公告)日：2009-01-15

申请号：US12060502

申请日：2008-04-01

申请人： Taizo ITO ,  Yoichi OKUBO ,  Junya DOSAKA ,  Toshio NOJIMA

发明人： Taizo ITO ,  Yoichi OKUBO ,  Junya DOSAKA ,  Toshio NOJIMA

IPC分类号： H03F1/32

CPC分类号： H03F1/3252

摘要： A distortion compensation apparatus includes distortion generating means for generating distortions to compensate for a distortion generated in an amplifier 2. The distortion generating means includes a nonlinear circuit 13 having an input/output expansion characteristic as a circuit which generates a distortion of the lowest odd order as a compensation target and also includes a nonlinear circuit 18 having an input/output saturation characteristic as a circuit which generates a distortion of another odd order as a compensation target.

摘要翻译： 失真补偿装置包括：失真产生装置，用于产生失真以补偿放大器2中产生的失真。失真发生装置包括具有输入/输出扩展特性的非线性电路13作为产生最低奇数阶失真的电路 作为补偿对象，并且还包括具有输入/输出饱和特性的非线性电路18作为产生作为补偿目标的另一奇数阶失真的电路。

公开(公告)号：US20100117726A1

公开(公告)日：2010-05-13

申请号：US12615687

申请日：2009-11-10

申请人： Yoichi OKUBO ,  Manabu NAKAMURA ,  Yasuhiro TAKEDA ,  Taizo ITO ,  Junya DOSAKA ,  Terufumi NAGANO ,  Hidekatsu UENO ,  Toshio NOJIMA

发明人： Yoichi OKUBO ,  Manabu NAKAMURA ,  Yasuhiro TAKEDA ,  Taizo ITO ,  Junya DOSAKA ,  Terufumi NAGANO ,  Hidekatsu UENO ,  Toshio NOJIMA

IPC分类号： H03F3/68

CPC分类号： H03F1/0288

摘要： An amplifier capable of lowering an electrical current flowing in a peak amplifier before a carrier amplifier becomes saturated to thereby improve the efficiency of an entirety of the amplifier is provided. The amplifier includes a carrier amplifier circuit having an amplifying element operable in class-AB or class-B, and a plurality of peak amplifier circuits which have amplifying elements operating in class-B or class-C and which are arranged to start an operation in stages in response to an input level. An output of the carrier amplifier circuit and outputs of the peak amplifier circuits are combined together for signal output. One of the peak amplifier circuits which is rendered operative at the lowest input level is smaller in saturation output than the carrier amplifier circuit.

摘要翻译： 提供一种放大器，其能够在载波放大器饱和之前降低在峰值放大器中流动的电流，从而提高整个放大器的效率。 放大器包括具有可在AB类或B类中工作的放大元件的载波放大器电路和具有在B类或C类中工作的放大元件的多个峰值放大器电路， 响应输入级别的阶段。 载波放大器电路的输出和峰值放大器电路的输出被组合在一起用于信号输出。 在最低输入电平下工作的峰值放大器电路中的一个在饱和输出中比载波放大器电路小。