Title:
POWER AMPLIFIER CONTROL SYSTEM AND METHOD EMPLOYING AUTOMATIC LEVEL CONTROL
Document Type and Number:
WIPO Patent Application WO/2020/253202
Kind Code:
A1
Abstract:
The present application discloses a power amplifier control system and method employing automatic level control. The system mainly comprises a controllable attenuation circuit. A first input terminal of the controllable attenuation circuit is connected to a signal input, and a second input terminal of the controllable attenuation circuit is connected to a control signal Vp output by a differential integrating circuit. An output terminal of the controllable attenuation circuit is connected to an input terminal of a signal transmission circuit. An output terminal of the signal transmission circuit is connected to an input terminal of a final-stage power amplifier transistor, and an output terminal of the final-stage power amplifier transistor serves as a signal output. A temperature measurement circuit is configured to measure the temperature of a power amplifier. The application can further add a voltage control circuit for reducing the static power consumption of the power amplifier transistor.
Inventors:
YU LIGUANG (CN)
LEI WENPING (CN)
HU XIAOFEI (CN)
SHEN BIN (CN)
REN AILIN (CN)
LEI WENPING (CN)
HU XIAOFEI (CN)
SHEN BIN (CN)
REN AILIN (CN)
Application Number:
PCT/CN2019/129417
Publication Date:
December 24, 2020
Filing Date:
December 27, 2019
Export Citation:
Assignee:
SUNWAVE COMM CO LTD (CN)
International Classes:
H03F1/52; H04R3/00
Foreign References:
| CN110351630A | 2019-10-18 | |||
| CN103888088A | 2014-06-25 | |||
| CN103888088A | 2014-06-25 | |||
| CN107196614A | 2017-09-22 | |||
| US8829997B1 | 2014-09-09 | |||
| US8829997B1 | 2014-09-09 | |||
| US6472860B1 | 2002-10-29 | |||
| US6472860B1 | 2002-10-29 |
Attorney, Agent or Firm:
KANGXIN PARTNERS, P. C. (CN)
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