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:
May. 26, 2026
Filed:
Dec. 21, 2022
Contemporary Amperex Technology (Hong Kong) Limited, Hong Kong, CN;
CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong, CN;
Abstract
The present application discloses a battery pack charging system and its control method. The battery pack charging system includes a battery pack, a charging apparatus, a negative pulse absorbing branch, and a control unit; the negative pulse absorbing branch includes a switch, a power resistor connected in series with the switch, and a supercapacitor connected in series with the power resistor; and the control method includes: monitoring an SOC value of the battery pack in a negative pulse charging process for the battery pack; when the SOC value increases by a preset value, controlling the switch to be closed so that the power resistor and the supercapacitor can absorb discharge energy of the battery pack; and after the closing time of the switch lasts for a preset duration, controlling the switch to be opened so that depolarization speed in the negative pulse charging process may be increased.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile