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:
Feb. 03, 2026
Filed:
Mar. 15, 2022
Phihong Technology Co., Ltd., Taoyuan, TW;
Yan-Keng Tan, Taoyuan, TW;
Mu-Hsun Chen, Taoyuan, TW;
Chen-Chan Lin, Taoyuan, TW;
Chia-Hao Liu, Taoyuan, TW;
Ming-Jyun Li, Taoyuan, TW;
PHIHONG TECHNOLOGY CO., LTD., Taoyuan, TW;
Abstract
The present invention is proposed to improve a conventional two-pin charging device (dumb charger), which stops charging when the battery is fully charged and can avoid the inrush current at any charging stage. A novel intelligent securely charging system is proposed, which includes a control module for controlling the operation of the system, a power conversion module for converting the input AC power ACinto the electricity required by the system, a switch module for passing or interrupting electrical power transformation, and a pre-charging module with impedance higher than the switch module used for limiting the inrush current, and a voltage detection module which detects the battery voltage V, the charging voltage V. Further, the pre-charging module maintains in the on-state at any charging stage, and the switching module is configured to be in the on-state or off-state according to the application of the charging stage.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile