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:
May. 13, 2025
Filed:
Oct. 30, 2023
Seiko Epson Corporation, Tokyo, JP;
Masayuki Kamiyama, Chino, JP;
SEIKO EPSON CORPORATION, , JP;
Abstract
A circuit device includes a battery power supply terminal, an energy harvest power supply terminal, a storage power supply terminal, a power supply switch circuit, and a control circuit that controls the power supply switch circuit. In a first state, the power supply switch circuit outputs a storage power supply voltage to a supply node while charging the battery by supplying an energy harvest power supply voltage to the battery power supply terminal. In a second state, the power supply switch circuit outputs the storage power supply voltage and the energy harvest power supply voltage to the supply node while charging a storage capacitor by supplying the energy harvest power supply voltage to the storage power supply terminal.