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:
Oct. 01, 2024
Filed:
Jun. 12, 2023
Seiko Epson Corporation, Tokyo, JP;
Akira Morita, Chino, JP;
Ryota Bansho, Matsumoto, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
A driver includes a first driving circuit and a second driving circuit. The second driving circuit includes a computation amplifier, an output capacitor, a first feedback capacitor, and a second feedback capacitor. One end of the output capacitor is coupled to an output node of the computation amplifier, and the other end is coupled to the signal supply line. One end of the first feedback capacitor is coupled to an inverting input node of the computation amplifier, and the other end is coupled to the signal supply line. One end of the second feedback capacitor is coupled to the inverting input node of the computation amplifier, and the other end is coupled to a predetermined potential node. At least one of the first feedback capacitor and the second feedback capacitor is a capacitor with a variable capacitance value.