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:
Sep. 18, 2018
Filed:
Jan. 29, 2016
Csmc Technologies Fab2 Co., Ltd., Jiangsu, CN;
CSMC TECHNOLOGIES FAB2 CO., LTD., Jiangsu, CN;
Abstract
A signal amplification circuit comprises a low pass filter circuit (). The low pass filter circuit () comprises two input ends and two output ends and further comprises two capacitors (C, C) having opposite polarities respectively connected between two output ends. A buffer circuit () comprises two input ends, a first operational amplifier (A) and a second operational amplifier (A), two output ends and a plurality of switches. A switched capacitor integrated circuit () comprises two input ends, a third operational amplifier (A), a plurality of capacitor modules, a plurality of chopper modulators and two output ends. A signal switch (S) is used to control the on and off states of voltage signal before amplification.