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. 01, 2026
Filed:
Sep. 26, 2024
Seiko Epson Corporation, Tokyo, JP;
Dai Nozawa, Matsumoto, JP;
Noritaka Ide, Shiojiri, JP;
SEIKO EPSON CORPORATION, , JP;
Abstract
A drive circuit board includes a first driver circuit configured to output a first drive signal, a first switching element configured to output a first switching signal, a second driver circuit configured to output a second drive signal, a second switching element configured to output a second switching signal corresponding to the first switching signal, and a smoothing circuit configured to output a drive signal obtained by smoothing the second switching signal, wherein the wiring board includes a first side and a second side located so as to be opposed to each other along a first direction, a frequency of the first drive signal is higher than a frequency of the second drive signal, and a distance between the first switching element and the first driver is shorter than a distance between the second switching element and the second driver circuit.