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. 07, 2019
Filed:
Jun. 26, 2018
Excelliance Mos Corporation, Hsinchu County, TW;
Poyu Yang, Hsinchu County, TW;
Excelliance MOS Corporation, Hsinchu County, TW;
Abstract
A power conversion apparatus including a transformer, a synchronous rectification (SR) transistor and an SR control circuit is provided. A first terminal of a primary side of the transformer receives an input voltage, and a first terminal of a secondary side outputs a DC voltage. A drain terminal of the SR transistor is coupled to a second terminal of the secondary side of the transformer. A source terminal of the SR transistor is coupled to a ground terminal. The SR control circuit receives a signal of the drain terminal of the SR transistor to serve it as a detection signal and generate a duty cycle signal. The SR control circuit converts the duty signal into a charging current and a discharging current so as to charge and discharge an energy-storage device and generate a first voltage. The SR control circuit turns off the SR transistor according to the first voltage.