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. 11, 2023
Filed:
Jul. 01, 2021
Delta Electronics (Shanghai) Co., Ltd., Shanghai, CN;
Haibin Song, Shanghai, CN;
Jian Zhou, Shanghai, CN;
Hairui Xu, Shanghai, CN;
Daofei Xu, Shanghai, CN;
Jinfa Zhang, Shanghai, CN;
DELTA ELECTRONICS (SHANGHAI) CO., LTD., Shanghai, CN;
Abstract
Disclosed are a voltage switching circuit and a power adapter having the same. The voltage switching circuit comprises a first switching circuit having a first terminal receiving a first voltage from a first converter, and a second switching circuit having a first terminal receiving a second voltage from a second converter. Second terminals of the first and second switching circuits are electrically connected to form a switching terminal for outputting an output voltage. When the output voltage is required to be switched from the first voltage to the second voltage, the first switching circuit is controlled to be turned off and then the second switching circuit is controlled to be turned on, and when a voltage at the first terminal of the second switching circuit is higher than a preset voltage, the second converter is shut down or kept off.