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:
May. 20, 2025
Filed:
Mar. 10, 2023
Upi Semiconductor Corp., Zhubei, TW;
Chih-Lien Chang, Zhubei, TW;
Wei-Hsiu Hung, Zhubei, TW;
Yen-Chih Lin, Zhubei, TW;
Chen-Xiu Lin, Zhubei, TW;
UPI SEMICONDUCTOR CORP., Zhubei, TW;
Abstract
A controller of a power conversion circuit, coupled to a smart power stage (SPS), controls SPS to convert an input voltage into an output voltage and provides an output current. The SPS provides a current monitoring signal to the controller. The controller includes a control loop, a sampling circuit and a current reconstruction circuit. The control loop is coupled to SPS and generates a pulse-width modulation (PWM) signal to control the operation of SPS. The sampling circuit is coupled to SPS and receives the current monitoring signal. The current monitoring signal is sampled according to PWM signal to obtain a calibration reference value. The current reconstruction circuit is coupled to the control loop and sampling circuit and generates a reconstructed current corresponding to actual output current. The reconstructed current is produced according to an input voltage, a reference voltage and PWM signal and calibrated using the calibration reference value.