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:
Feb. 10, 2026
Filed:
Jun. 14, 2023
Murata Manufacturing Co., Ltd., Kyoto-fu, JP;
Tatsuya Hosotani, Nagaokakyo, JP;
Hiroyuki Takatsuji, Nagaokakyo, JP;
Yuki Ishikura, Nagaokakyo, JP;
Murata Manufacturing Co., Ltd., Kyoto-fu, JP;
Abstract
A switching power supply device includes power supply input lines, DC output lines, a DC-DC converter circuit, and a noise reduction circuit. The noise reduction circuit includes a first half-bridge capacitor circuit that is connected between the power supply input lines, a second half-bridge capacitor circuit that is connected between the DC output lines, a first common mode choke coil, and an electrical path. The electrical path electrically connects a midpoint of the first half-bridge capacitor circuit to a midpoint of the second half-bridge capacitor circuit.