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:
Dec. 02, 2025
Filed:
Aug. 08, 2023
Power Forest Technology Corporation, Hsinchu County, TW;
Yu-Chao Lin, Hsinchu, TW;
Kuan-Chun Fang, Hsinchu County, TW;
Zhi-Yang Zhang, Tainan, TW;
Chien-Wei Kuan, Hsinchu County, TW;
Power Forest Technology Corporation, Hsinchu County, TW;
Abstract
A feedback circuit is used for a power supply device. The power supply device includes a primary side circuit and a secondary side circuit. The feedback circuit includes a feedback voltage generation circuit, a base voltage generation circuit, and a compensation signal generation circuit. The feedback voltage generation circuit is electrically connected to the secondary side circuit. The feedback voltage generation circuit generates a feedback voltage according to a bias voltage and an output voltage of the power supply device. The base voltage generation circuit generates a base voltage according to the feedback voltage. The compensation signal generation circuit generates a compensation signal according to the feedback voltage and the base voltage and provides the compensation signal to a controller in the primary side circuit. A voltage value of the feedback voltage is lower than a voltage value of the bias voltage.