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. 04, 2018
Filed:
Feb. 10, 2016
Kabushiki Kaisha Toshiba, Tokyo, JP;
Satoshi Haruki, Yokosuka Kanagawa, JP;
Kazuhiro Kato, Yokohama Kanagawa, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
An electrostatic protection circuit includes a first power line and a second power line. The electrostatic protection circuit includes a trigger circuit connected between the first and second power lines and outputs a trigger signal in response to a fluctuation of a voltage difference between the first and second power lines. The electrostatic protection circuit further includes a shunt element that is controlled by the trigger signal, and includes a main current pathway connected between the first and second power lines. The electrostatic protection circuit further includes a control circuit that is connected between the first and second power lines and supplies a control signal for increasing the conductivity of the shunt element when the voltage difference between the first power line and the second power line exceeds a predetermined voltage.