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:
Nov. 18, 2025
Filed:
Dec. 29, 2023
Joulwatt Technology Co., Ltd., Hangzhou, CN;
Joulwatt Technology (Shenzhen) Co., Ltd., Shenzhen, CN;
Shengfeng Li, Shenzhen, CN;
Aimin Xu, Hangzhou, CN;
Pitleong Wong, Hangzhou, CN;
Zhirong Chen, Shenzhen, CN;
Joulwatt Technology Co., Ltd., Hangzhou, CN;
Joulwatt Technology (Shenzhen) Co., Ltd., Shenzhen, CN;
Abstract
Disclosed is a power conversion circuit for quick response and a switching power supply, wherein an error compensation signal is obtained according to a sampled signal representing an output feedback signal or an average current through the inductor. A PWM control signal is generated according to the error compensation signal, a ramp signal, and a proportional signal, and is used to control switching operations of a main power switch transistor, the proportional signal is proportional to an input voltage or/and an output voltage, thus the system can quickly respond to transient change of the input voltage or the output signal and provide stable output. Output voltage information or/and input voltage information can be fed back to a control loop, thus the system can quickly obtain a switching duty cycle which allows the system to operate in a state close to steady, and dynamic response speed of the system is fast.