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:
Sep. 21, 2021
Filed:
Jan. 24, 2020
Fuji Electric Co., Ltd., Kawasaki, JP;
Takanori Kohama, Matsumoto, JP;
FUJI ELECTRIC CO., LTD., Kawasaki, JP;
Abstract
A semiconductor integrated circuit includes a semiconductor power switch element configured to drive an inductive load, a load current sensing circuit configured to sense a load current of the inductive load, a logic circuit configured to output a logic signal responsive to the load current sensing circuit sensing a drop in the load current while the semiconductor power switch element is turned on, a gate voltage pull-down circuit configured to pull down a gate voltage of the semiconductor power switch element upon receiving the logic signal, a clamp diode disposed between a gate of the semiconductor power switch element and a high-potential terminal connected to the inductive load, and a clamp withstand voltage drop circuit configured to switch a first withstand voltage of the clamp diode to a second withstand voltage, which is lower than the first withstand voltage, upon receiving the logic signal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile