The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 19, 2025
Filed:
Jan. 19, 2021
No.24 Research Institute of China Electronics Technology Group Corporation, Chongqing, CN;
Chongqing Gigachip Technology Co., Ltd., Chongqing, CN;
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;
Xueliang Xu, Chongqing, CN;
NO.24 RESEARCH INSTITUTE OF CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION, Chongqing, CN;
Chongqing GigaChip Technology Co., Ltd., Chongqing, CN;
Abstract
A differential-follower control circuit has been provided, 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; a substrate-voltage following module, which controls a substrate voltage of an output transistor of the follower to vary with an input voltage; an output terminal of the follower is connected to a first terminal of the output-voltage following module; 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; the invention effectively improves the overall linearity of the follower.