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:
Jul. 14, 2020
Filed:
Jul. 23, 2019
Fuji Electric Co., Ltd., Kawasaki, JP;
Takato Sugawara, Matsumoto, JP;
FUJI ELECTRIC CO., LTD., Kawasaki, JP;
Abstract
A driver circuit includes a gate capacitance discharge circuit that reduces a resistance value of a resistor for pulling down the gate of a PMOSFET at the output stage for a predetermined period at the timing when an NMOSFET turns on and a pull-down resistor switching circuit that switches pull-down resistors of the gate capacitance discharge circuit, based on a divided voltage into which voltage of the high voltage power supply system is divided, in which the pull-down resistor switching circuit, when the divided voltage is higher than a reference voltage Vref, switches the pull-down resistor for the predetermined period to a resistor and, when the divided voltage is the reference voltage Vref or lower, switches the pull-down resistor to a resistor having a higher resistance value than the resistor.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile