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:
Jun. 03, 2025
Filed:
Oct. 13, 2021
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Koji Takahashi, Osaka, JP;
Manabu Yanagihara, Osaka, JP;
Noboru Negoro, Osaka, JP;
Takeshi Azuma, Osaka, JP;
Abstract
A gate drive circuit that drives a switching element including a first drain, a first source, and a first gate includes: a first terminal to which a gate control signal is input; a gate signal line connecting the first terminal and the first gate; a resistance element inserted in the gate signal line; a capacitance element connected in parallel with the resistance element; a clamp circuit that performs a clamp operation of clamping a voltage between the first gate and the first source to a voltage lower than a threshold voltage of the switching element when the gate control signal indicates an off period of the switching element; and a clamp control circuit that controls whether to prohibit the clamp operation of the clamp circuit in the off period.