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:
Aug. 20, 2019
Filed:
Feb. 23, 2018
General Electric Company, Schenectady, NY (US);
Saijun Mao, Shaghai, CN;
Stefan Schroeder, Bavaria, DE;
Jingkui Shi, Shanghai, CN;
He Xu, Shaghai, CN;
Marius Michael Mechlinski, Garching, DE;
Bo Qu, Shanghai, CN;
Zhihui Yuan, Garching, DE;
Yingqi Zhang, Shanghai, CN;
Jie Shen, Shanghai, CN;
GENERAL ELECTRIC COMPANY, Schenectady, NY (US);
Abstract
The present disclosure relates to a snubber circuit which comprises a static snubber unit, connected in parallel with the switch, for balancing a static voltage sharing across a switch when the switch is in a state of turn-on or turn-off; and a dynamic snubber unit for balance a dynamic voltage sharing across the switch when the switch is in a process of turn-on or turn-off, comprising a dynamic voltage sharing capacitor connected in parallel with the switch and having a relationship between a capacitance and a voltage of the dynamic voltage sharing capacitor; and a controller for controlling the capacitance of the dynamic voltage sharing capacitor to be in a predetermined working area of capacitance rising while the voltage across the switch is increasing. The present disclosure also relates to a power semiconductor device.