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:
Feb. 25, 2020
Filed:
Aug. 09, 2018
National Sun Yat-sen University, Kaohsiung, TW;
Chua-Chin Wang, Kaohsiung, TW;
Chung-Jye Hsu, Kaohsiung, TW;
NATIONAL SUN YAT-SEN UNIVERSITY, Kaohsiung, TW;
Abstract
A DC-DC buck converter includes a buck conversion circuit, a PWM control circuit and a light-load control circuit. A switching circuit in the buck conversion circuit includes multiple upper switching elements and lower switching elements. The PWM control circuit is coupled to the buck conversion circuit and output a control signal to control the upper and lower switching elements. The light-load control circuit, coupled to the PWM control circuit and the buck conversion circuit for receiving an output voltage, the control signal and a light-load threshold value. The light-load control circuit is provided to determine whether the DC-DC buck converter is in a light load state and turn off at least one of the upper switching elements and at least one of the lower switching elements in the light load state.