US 12,395,129 B2
Differential-follower control circuit
Daiguo Xu, Chongqing (CN); Dongbing Fu, Chongqing (CN); Zhengping Zhang, Chongqing (CN); Zhou Yu, Chongqing (CN); Jian'an Wang, Chongqing (CN); Can Zhu, Chongqing (CN); Ruzhang Li, Chongqing (CN); Guangbing Chen, Chongqing (CN); Yuxin Wang, Chongqing (CN); and Xueliang Xu, Chongqing (CN)
Assigned to NO.24 RESEARCH INSTITUTE OF CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION, Chongqing (CN); and Chongqing GigaChip Technology Co., Ltd., Chongqing (CN)
Appl. No. 17/921,991
Filed by NO.24 RESEARCH INSTITUTE OF CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION, Chongqing (CN); and Chongqing GigaChip Technology Co., Ltd., Chongqing (CN)
PCT Filed Jan. 19, 2021, PCT No. PCT/CN2021/072718
§ 371(c)(1), (2) Date Oct. 28, 2022,
PCT Pub. No. WO2022/032986, PCT Pub. Date Feb. 17, 2022.
Claims priority of application No. 202010795640.1 (CN), filed on Aug. 10, 2020.
Prior Publication US 2023/0198475 A1, Jun. 22, 2023
Int. Cl. H03F 1/32 (2006.01); H03F 3/45 (2006.01)
CPC H03F 1/3211 (2013.01) [H03F 3/45179 (2013.01); H03F 2203/45006 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A differential-follower control circuit, comprising:
a follower;
an output-voltage following module, which controls a voltage at a control terminal of the follower to vary with an output voltage; and
a substrate-voltage following module, which controls a substrate voltage of an output transistor of the follower to vary with an input voltage;
wherein an output terminal of the follower is connected to a first terminal of the output-voltage following module, and a second terminal of the output-voltage following module is connected to the control terminal of the follower; a first terminal of the substrate-voltage following module is connected to an input terminal of the follower and a second terminal of the substrate-voltage following module is connected to a substrate of the output transistor.