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:
Dec. 16, 2025
Filed:
Dec. 26, 2023
Industrial Technology Research Institute, Hsinchu, TW;
Jia-Yao Jhang, Taoyuan, TW;
Chiu-Pao Tien, Zhubei, TW;
Hsi-Chih Chang, Hsinchu, TW;
Cheng-Min Chang, Keelung, TW;
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, Hsinchu, TW;
Abstract
A clamping circuit includes an insulated-gate bipolar transistor (IGBT), a transient-voltage-suppression (TVS) diode module, an isolated driving unit, a first independent power source and a first current limiting resistor. A second terminal of the TVS diode module is connected to a collector of the IGBT. A primary side of the isolated driving unit is connected to a first terminal of the TVS diode module, and a first terminal of a secondary side of the isolated driving unit is configured to receive a power voltage. The first independent power source is configured to provide the power voltage to the first terminal of the secondary side of the isolated driving unit. A terminal of the first current limiting resistor is connected to a second terminal of the secondary side of the isolated driving unit, and the other terminal of the first current limiting resistor is connected to a gate of the IGBT.