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:
Dec. 19, 2023
Filed:
May. 30, 2019
Applicants:
The University of Tokyo, Tokyo, JP;
Saginomiya Seisakusho, Inc., Tokyo, JP;
Inventors:
Assignees:
The University of Tokyo, Tokyo, JP;
Saginomiya Seisakusho, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H02J 50/00 (2016.01);
U.S. Cl.
CPC ...
H02M 3/335 (2013.01); H02J 50/001 (2020.01);
Abstract
A power supply circuit that outputs an electric power that is input from a vibration-driven energy harvesting element to an external load, includes: a negative half-wave rectifying circuit that half-wave rectifies an alternating current power that is input from the vibration-driven energy harvesting element, into a negative voltage output; an inverting chopper circuit that inverts and outputs the negative voltage output which is output from the negative half-wave rectifying circuit, into a positive voltage output.