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:
Apr. 14, 2026
Filed:
Feb. 19, 2024
Lapis Technology Co., Ltd., Yokohama, JP;
Takatsugu Kai, Yokohama, JP;
LAPIS Technology Co., Ltd., Yokohama, JP;
Abstract
A discharge control circuit includes: a first gate voltage output circuit that outputs a first gate voltage supplied to a transistor connected to a capacitive load; a second gate voltage output circuit that outputs a second gate voltage supplied to the transistor; and a switching control circuit that switches supply of the first gate voltage and the second gate voltage to the transistor. The first gate voltage output circuit includes: a voltage supply circuit that supplies a voltage to a gate of the transistor until the transistor changes from an off state to an on state; and a current supply circuit that supplies a current to the gate of the transistor. The second gate voltage output circuit outputs a voltage at a constant level as the second gate voltage. The switching control circuit performs control to supply the second gate voltage after supplying the first gate voltage to the transistor.