公开(公告)号：US09013238B2

公开(公告)日：2015-04-21

申请号：US14016437

申请日：2013-09-03

Applicant: Advanced Semiconductor Engineering Inc.

Inventor： Jaw-Ming Ding ,  Jia-Hong Mou ,  Hsin-Chin Chang

IPC: H03F3/04 ,  H03F1/02 ,  H03F3/19

CPC classification number: H03F1/0205 ,  H03F1/0261 ,  H03F1/52 ,  H03F3/19 ,  H03F3/191 ,  H03F2200/18

Abstract: A radio frequency (RF) amplifier is disclosed. The RF power amplifier includes a bias circuit, an output-stage circuit and a RF compensation circuit. When a first system voltage is larger than a first voltage threshold value, the bias circuit generates a first current rising slightly. When first system voltage is larger than second voltage threshold value, the RF compensation circuit receives a second circuit rising slightly transmitted from the bias circuit. When the first system voltage is in an operation voltage range, the first current is larger than the second circuit so as to a quiescent operating current of the RF power amplifier is independent of change of the first system voltage. When the first system voltage is larger than a third voltage threshold value, the first current is equal to the second current so as to have the bias current being a zero current to protect the RF power amplifier from over-voltage.

Abstract translation: 公开了射频（RF）放大器。 RF功率放大器包括偏置电路，输出级电路和RF补偿电路。 当第一系统电压大于第一电压阈值时，偏置电路产生稍微上升的第一电流。 当第一系统电压大于第二电压阈值时，RF补偿电路接收从偏置电路稍微传输的第二电路。 当第一系统电压处于工作电压范围时，第一电流大于第二电路，以使RF功率放大器的静态工作电流与第一系统电压的变化无关。 当第一系统电压大于第三电压阈值时，第一电流等于第二电流，以使偏置电流为零电流，以保护RF功率放大器免受过电压。

公开(公告)号：US09319001B2

公开(公告)日：2016-04-19

申请号：US14187823

申请日：2014-02-24

Applicant: ADVANCED SEMICONDUCTOR ENGINEERING INC.

Inventor： Jaw-Ming Ding ,  Rong-Hsang Ho ,  Jia-Hong Mou

IPC: H03F1/38 ,  H03F1/30 ,  H03F3/193

CPC classification number: H03F1/301 ,  H03F1/223 ,  H03F3/193 ,  H03F2200/18 ,  H03F2200/447 ,  H03F2200/451

Abstract: An exemplary embodiment of the present disclosure illustrates an amplifier circuit comprising an amplifier block and a biasing block. The amplifier block is used to receive an input signal and amplify the input signal to generate an output signal. The a biasing block coupled to the amplifier block is used to provide biasing voltages to bias the amplifier block, and compensate an output gain of the amplifier block before the output gain of the amplifier block is compressed, so as to extend a P1 dB compression point of the amplifier block, wherein the biasing currents are substantially independent to temperature and/or system voltage variation.

Abstract translation: 本公开的示例性实施例示出了包括放大器块和偏置块的放大器电路。 放大器块用于接收输入信号并放大输入信号以产生输出信号。 耦合到放大器块的偏置块用于提供偏置电压以偏置放大器块，并且在放大器块的输出增益被压缩之前补偿放大器块的输出增益，以便扩展P1dB压缩点 的放大器块，其中偏置电流基本上独立于温度和/或系统电压变化。

公开(公告)号：US09184716B2

公开(公告)日：2015-11-10

申请号：US14228661

申请日：2014-03-28

Applicant: ADVANCED SEMICONDUCTOR ENGINEERING INC.

Inventor： Jaw-Ming Ding ,  Jia-Hong Mou

IPC: H03F3/00 ,  H03G3/30 ,  H03F3/19 ,  H03F1/02

CPC classification number: H03G3/3036 ,  H03F1/0205 ,  H03F1/223 ,  H03F3/00 ,  H03F3/19 ,  H03F3/193 ,  H03F2200/294 ,  H03F2200/451

Abstract: A low noise amplifier is disclosed. The low noise amplifier comprises a current mirror circuit, a bias circuit, a cascode amplifying circuit and a power gain compensating circuit. The current mirror circuit is used for providing a first current and third current. The bias circuit is used for receiving a first current and third current and outputting a first bias voltage and a second bias voltage according to the first current and third current. The cascode amplifying circuit respectively receives the first bias voltage and the second bias voltage, and accordingly to work at an operation bias point. The power gain compensating circuit is used for receiving a RF output signal and accordingly outputs a gain compensating signal to the current mirror circuit so as to dynamically adjust current value of the first current and third current and further to compensates power gain of the low noise amplifier in order to increase 1 dB gain compression point (P1 dB).

Abstract translation: 公开了一种低噪声放大器。 低噪声放大器包括电流镜电路，偏置电路，共源共栅放大电路和功率增益补偿电路。 电流镜电路用于提供第一电流和第三电流。 偏置电路用于接收第一电流和第三电流，并且根据第一电流和第三电流输出第一偏置电压和第二偏置电压。 共射共基放大电路分别接收第一偏置电压和第二偏置电压，并因此在工作偏压点工作。 功率增益补偿电路用于接收RF输出信号，并且相应地向电流镜电路输出增益补偿信号，以便动态地调节第一电流和第三电流的电流值，并进一步补偿低噪声放大器的功率增益 以增加1 dB增益压缩点（P1 dB）。