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:
Jul. 23, 2019
Filed:
Apr. 13, 2018
Leadtrend Technology Corp., Hsinchu County, TW;
Chung-Wei Lin, Hsinchu County, TW;
Leadtrend Technology Corp., Hsinchu County, TW;
Abstract
A synchronous rectifier applied to a power converter includes a control signal generation circuit, a pre-attenuation circuit, and a gate driving circuit. The control signal generation circuit generates a control signal corresponding to a previous period of a secondary side of the power converter according to a detection signal corresponding to the previous period, a first reference voltage, and a second reference voltage when the secondary side is turned on. The control signal corresponding to the previous period corresponds to a discharge time of the previous period. The pre-attenuation circuit pre-attenuates agate control signal corresponding to a current period of the secondary side and generates a pre-attenuation signal corresponding to the current period according to the discharge time. The gate driving circuit drives the gate control signal according to the control signal corresponding to the current period, and stops driving the gate control signal according to the pre-attenuation signal.