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:
Nov. 15, 2022
Filed:
Jun. 08, 2021
Upi Semiconductor Corp., Zhubei, TW;
UPI SEMICONDUCTOR CORP., Zhubei, TW;
Abstract
A battery secondary protection circuit and a mode switching method thereof are disclosed. The battery secondary protection circuit is coupled in series with a battery primary protection circuit and has a power pin and a sensing pin. The switching method includes steps of: (S) determining whether a voltage difference between the power pin and the sensing pin is greater than a default value; and (S) selectively switching the battery secondary protection circuit to a first mode or a second mode according to a determination result of the step (S). The battery secondary protection circuit delays a first delay time and a second delay time in the first mode and the second mode respectively and then performs a circuit protection operation. The first delay time is longer than the second delay time.