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. 10, 2022
Filed:
Jul. 28, 2020
Fuji Electric Co., Ltd., Kanagawa, JP;
Morio Iwamizu, Matsumoto, JP;
FUJI ELECTRIC CO., LTD., Kanagawa, JP;
Abstract
A driver circuit controls an output unit that switches whether or not to supply a current to an output line, in accordance with a potential difference between a first control signal to be input and a voltage of the output line. The driver circuit has a control line transmitting the first control signal to the output unit; a connection switching unit switching whether or not to connect the control line and the output line; a pre-stage control unit that is provided between a high potential line and a low potential line and selects and outputs a potential of any one of the high potential line and the low potential line in accordance with a second control signal; and a post-stage control unit causing the connection switching unit to connect the control line and the output line when the pre-stage control unit outputs a voltage higher than a predetermined threshold value.