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:
Jan. 28, 2020
Filed:
Aug. 10, 2018
Applicant:
Fuji Electric Co., Ltd., Kanagawa, JP;
Inventor:
Masaharu Yamaji, Nagano, JP;
Assignee:
FUJI ELECTRIC CO., LTD., Kanagawa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 17/06 (2006.01); H02M 1/08 (2006.01); H03K 17/16 (2006.01); H01L 29/73 (2006.01); H02M 3/158 (2006.01); H01L 29/861 (2006.01);
U.S. Cl.
CPC ...
H03K 17/162 (2013.01); H01L 29/7302 (2013.01); H01L 29/8611 (2013.01); H02M 1/08 (2013.01); H02M 3/158 (2013.01); H03K 17/06 (2013.01);
Abstract
A semiconductor integrated circuit for driving a control terminal of a switching device includes: a driver circuit that alternately applies a positive voltage supplied from a positive voltage source and a negative voltage supplied from a negative voltage source to the control terminal in order to switch the switching device ON and OFF; and a negative voltage clamp diode that is integrated into a semiconductor chip on which the driver circuit is formed, an anode thereof being connected to the negative voltage source and a cathode thereof being connected to the control terminal.