公开(公告)号：US08928360B2

公开(公告)日：2015-01-06

申请号：US13854395

申请日：2013-04-01

Applicant: STMicroelectronics R&D (Shanghai) Co. Ltd.

Inventor： Jian Hua Zhao ,  Wadeo Ou

IPC: H03K3/00 ,  H03G3/00 ,  H03G3/30

CPC classification number: H03G3/004 ,  H03G3/002 ,  H03G3/3089

Abstract: Circuits and methods to realize a power-efficient high frequency buffer. The amplitude of a buffered signal is detected and compared with the amplitude of the input signal. The comparison result can be fed back to the digitally-controlled buffer to keep the output gain constant. By using feedback control, the buffer can be kept at the most suitable biasing condition even if the load condition or signal frequency varies.

Abstract translation: 实现功率高效的高频缓冲器的电路和方法。 检测缓冲信号的幅度并与输入信号的幅度进行比较。 比较结果可以反馈到数字控制缓冲器，以保持输出增益不变。 通过使用反馈控制，即使负载条件或信号频率变化，也可以将缓冲器保持在最合适的偏置状态。

公开(公告)号：US20130222053A1

公开(公告)日：2013-08-29

申请号：US13854395

申请日：2013-04-01

Applicant: STMicroelectronics R&D (Shanghai) Co., Ltd.

Inventor： Jian Hua ZHAO ,  Wadeo Ou

IPC: H03G3/00

CPC classification number: H03G3/004 ,  H03G3/002 ,  H03G3/3089

Abstract: Circuits and methods to realize a power-efficient high frequency buffer. The amplitude of a buffered signal is detected and compared with the amplitude of the input signal. The comparison result can be fed back to the digitally-controlled buffer to keep the output gain constant. By using feedback control, the buffer can be kept at the most suitable biasing condition even if the load condition or signal frequency varies.

Abstract translation: 实现功率高效的高频缓冲器的电路和方法。 检测缓冲信号的幅度并与输入信号的幅度进行比较。 比较结果可以反馈到数字控制缓冲器，以保持输出增益不变。 通过使用反馈控制，即使负载条件或信号频率变化，也可以将缓冲器保持在最合适的偏置状态。