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. 01, 2020
Filed:
Dec. 17, 2019
Upi Semiconductor Corp., Zhubei, TW;
Wei-Hsiu Hung, Zhubei, TW;
Chih-Lien Chang, Zhubei, TW;
UPI SEMICONDUCTOR CORP., Zhubei, TW;
Abstract
A power conversion circuit includes an error amplifying circuit, a first comparison circuit, a second comparison circuit and a control circuit. The error amplifying circuit provides an output signal. The first comparison circuit, coupled to the error amplifying circuit, receives the output signal and a ramp signal to generate a first comparison signal. The second comparison circuit receives an output voltage and a first reference voltage and provides a second comparison signal. The control circuit, coupled to the error amplifying circuit, the first comparison circuit and the second comparison circuit, provides a control signal to control the error amplifying circuit according to the first comparison signal, the second comparison signal and an enabling signal. In a first operation mode of error amplifying circuit, the output signal is an error amplifying signal. In a second operation mode of error amplifying circuit, the output signal is a second reference voltage.