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:
Apr. 21, 2026
Filed:
Dec. 28, 2023
Schneider Electric Industries Sas, Rueil-Malmaison, FR;
Han Wang, Shanghai, CN;
Xiaohang Chen, Shanghai, CN;
Feng Lu, Shanghai, CN;
Meng Du, Shanghai, CN;
Jie Feng, Shanghai, CN;
Yangfeng Song, Shanghai, CN;
Jianwei Tian, Shanghai, CN;
Wanlong Bai, Shanghai, CN;
Yuchen Ye, Shanghai, CN;
Schneider Electric Industries SAS, Rueil-Malmaison, FR;
Abstract
The present disclosure relates to a power supply circuit and an electrical device. The power supply circuit includes: a first switch; a first capacitor connected in series with the first switch; a voltage sampling device configured to detect a voltage of the first capacitor and/or a power supply bus to which the power supply circuit is connected; and a control circuit configured to output a control signal based on the detected voltage, wherein the first switch is configured to be switched on or off based on the control signal. In this way, a low-voltage withstanding capacitor with a large capacitance can be achieved in the power supply circuit by switching out the capacitor when the power supply bus voltage is high and switching in the capacitor to assist in power supply when the power supply bus voltage is low.