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:
Mar. 31, 2020
Filed:
Jul. 01, 2016
Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, CN;
Xinhong Cheng, Shanghai, CN;
Xinchang Li, Shanghai, CN;
Zhonghao Wu, Shanghai, CN;
Dawei Xu, Shanghai, CN;
Yuehui Yu, Shanghai, CN;
Abstract
A battery management chip circuit on the basis of an SOI process. The battery management chip circuit comprises a high-voltage multiplexer MUX, a voltage reference circuit, a Sigma-delta ADC (comprising an analog modulator and a digital filter), an SPI communication circuit, a function control circuit and a voltage value register. The battery management chip circuit is integrated on the basis of an SOI high-voltage process, and particularly, high-voltage MOS transistors adopted by the battery management chip circuit are high-voltage MOS device units on the basis of the SOI process. In addition, the present invention highlights the design of interface circuit-chopper circuit of the high-voltage multiplexer MUX and the Sigma-delta ADC, so as to describe the advantages such as decrease of difficulty of circuit design and reduction of layout area brought about when the present invention adopts the SOI process design and tape-out.