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. 01, 2018
Filed:
Sep. 25, 2013
Mitsubishi Electric Corporation, Tokyo, JP;
Keisuke Uemura, Tokyo, JP;
Takuya Shimomugi, Tokyo, JP;
Koichi Arisawa, Tokyo, JP;
Yosuke Shinomoto, Tokyo, JP;
Shigeo Umehara, Tokyo, JP;
Shinichiro Ura, Tokyo, JP;
Makoto Tanikawa, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A switch device in a power conversion device is located between a power supply and a load, wherein the power conversion device includes a shunt resistance and a switching element and is capable of executing stable control, the switch device includes a switching element that includes a gate terminal, a gate drive circuit that applies a drive voltage Vto a gate terminal of the switching element, and a control unit that generates a drive signal to the gate drive circuit, wherein a value obtained by subtracting a threshold voltage Vof the switching element from the drive voltage Vto be applied to the gate terminal of the switching element is greater than a product of a resistance value R+Rfrom an emitter of the switching element to a negative electrode of the gate drive circuit and a maximum current value Ithat flows through the switching element.