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:
Jan. 06, 2026
Filed:
Apr. 10, 2023
Lansus Technologies Inc., Shenzhen, CN;
Yongfeng Zhou, Shenzhen, CN;
Jiashuai Guo, Shenzhen, CN;
LANSUS TECHNOLOGIES INC., Shenzhen, CN;
Abstract
An LDO power supply circuit includes an operational amplifier, a first transistor, and a resistance feedback network including a first branch and a second branch. A negative electrode input end of the operational amplifier connects a control voltage. An output end of the operational amplifier connects a gate electrode of the first transistor. A source electrode of the first transistor connects a power supply voltage. A positive electrode input end of the operational amplifier and a drain electrode of the first transistor are respectively an input end and an output end of the LDO power supply circuit. The resistance feedback network connects between the drain electrode of the first transistor and the positive electrode input end of the operational amplifier. A first feedback coefficient formed by the first branch is different from a second feedback coefficient formed by the second branch. The present disclosure further provides a power amplifier.