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. 19, 2023
Filed:
Sep. 19, 2020
Shenzhen Goodix Technology Co., Ltd., Shenzhen, CN;
Jianfeng Xue, Shenzhen, CN;
Jiang Yang, Shenzhen, CN;
SHENZHEN GOODIX TECHNOLOGY CO., LTD., Shenzhen, CN;
Abstract
A power glitch signal detection circuit, a security chip and an electronic apparatus are disclosed. The power glitch signal detection circuit includes a voltage sampling module, wherein the voltage sampling module includes: a first metal oxide semiconductor MOS transistor and a capacitor for sampling a power supply voltage, wherein a gate terminal of the first MOS transistor is connected to the capacitor, a source terminal of the first MOS transistor is connected to a ground voltage. The power glitch signal detection circuit further comprises a second MOS transistor and a signal output module. One terminal of the second MOS transistor is connected to a gate terminal of the first MOS transistor, another terminal of the second MOS transistor is connected to the power supply voltage, and a drain terminal of the second MOS transistor is connected to a drain terminal of the first MOS transistor.