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:
Oct. 24, 2023
Filed:
Jul. 24, 2019
Sumitomo Electric Industries, Ltd., Osaka, JP;
Masayoshi Hirota, Osaka, JP;
Keiji Tashiro, Osaka, JP;
SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka, JP;
Abstract
A semiconductor switch driving apparatus is configured to drive a semiconductor switch, the semiconductor switch not having a body diode and having a threshold voltage for performing switching between off and on lower than a threshold voltage of a silicon device. The semiconductor switch driving apparatus includes: a first drive voltage switching circuit configured to switch a drive voltage of the semiconductor switch to a first adjustment voltage between an off-voltage and an on-voltage, at a predetermined time immediately before a timing at which the semiconductor switch is driven from off to on; and a second drive voltage switching circuit configured to switch, after the drive voltage of the semiconductor switch has been switched by the first drive voltage switching circuit, the drive voltage of the semiconductor switch to the on-voltage at the timing at which the semiconductor switch is driven from off to on.