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:
Jul. 07, 2026
Filed:
Jul. 20, 2023
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Kinya Kato, Shiga, JP;
Shohei Yamanaka, Osaka, JP;
Abstract
A charge-pump circuit includes: a capacitor; a plurality of switch elements; and a control circuit. A Zener diode has and an anode connected to the control circuit. The control circuit controls ON/OFF states of the plurality of switch elements to allow a first period and a second period to alternate repeatedly. The first period is a period in which a capacitor is connected to a power supply in parallel. The second period is a period in which the power supply and the capacitor are connected in series to cause a current to flow from the power supply and the capacitor to a load. The control circuit makes, within each cycle of a switching period, a proportion of either the first period or the second period smaller in a second state where the Zener diode is electrically conductive than in a first state where the Zener diode is electrically non-conductive.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile