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.

Date of Patent:
Aug. 12, 2025

Filed:

Dec. 05, 2024
Applicant:

Shenzhen Kalaifu Technology Co., Ltd., Guangdong, CN;

Inventors:

Lian Cai, Guangdong, CN;

Tao Cai, Guangdong, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01); H02J 9/04 (2006.01);
U.S. Cl.
CPC ...
H02J 7/00712 (2020.01); H02J 7/00308 (2020.01); H02J 9/04 (2013.01);
Abstract

Provided are charging system and emergency start device. The charging system includes charging input interface, inductor, first switch, second switch, first voltage acquisition circuit, and control circuit. The charging input interface is electrically connected to inductor, and the inductor is respectively connected to first switch and second switch. The second switch is configured for electrical connection with energy storage power supply. The first voltage acquisition circuit is electrically connected to second switch and configured to detect first voltage output by the charging system in real time. The control circuit cyclically controls the switch on/off time of first switch based on the first voltage. During the charging process of charging system, when the first voltage is less than the first preset voltage value, the control circuit controls the first switch to conduct and starts cyclic control, wherein the state of first switch is opposite to that of second switch.


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