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.

Date of Patent:
Sep. 15, 2026

Filed:

Jan. 02, 2025
Applicant:

Tdk Corporation, Tokyo, JP;

Inventors:

Yugi Ito, Tokyo, JP;

Norikazu Okako, Tokyo, JP;

Yuki Tada, Tokyo, JP;

Assignee:

TDK CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 16/30 (2006.01); H02M 3/158 (2006.01);
U.S. Cl.
CPC ...
G11C 16/30 (2013.01); H02M 3/158 (2013.01);
Abstract

A power supply apparatus includes: a power supply terminal receiving a first voltage from outside; one or more step-down circuits each generating a second voltage to be supplied to a memory device; first and second coupling lines disposed parallel to each other and individually coupling the power supply terminal and the step-down circuit(s) to each other; a first switching device disposed on the first coupling line, between the power supply terminal and the step-down circuit(s); a step-up circuit disposed on the second coupling line and stepping up the first voltage supplied from the power supply terminal; a first capacitor disposed on the second coupling line, between the step-up circuit and the step-down circuit(s); a second switching device disposed on the second coupling line, between the step-up circuit(s) and the first capacitor, and a third switching device disposed on the second coupling line, between the first capacitor and the step-down circuit(s).


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