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:
Jan. 23, 2018
Filed:
Dec. 29, 2016
Research & Business Foundation Sungkyunkwan University, Suwon-si, KR;
Kang Yoon Lee, Seoul, KR;
Seong Jin Oh, Suwon-si, KR;
Youngoo Yang, Hwaseong-si, KR;
Keum Cheol Hwang, Seoul, KR;
Young Jun Park, Mungyeong-si, KR;
Sang Yun Kim, Suwon-si, KR;
Byeong Gi Jang, Suwon-si, KR;
Jung Yeon Kim, Suwon-si, KR;
Research & Business Foundation Sungkyunkwan University, Suwon-si, KR;
Abstract
Disclosed herein is an active rectifier. The rectifier includes a rectifier unit, a driver unit, and a switching device control circuit unit. The rectifier unit includes first and fourth transistors configured to become conductive when the voltage of an alternating current (AC) input is negative and apply the current of the AC input to a rectifier capacitor, and second and third transistors configured to become conductive when the voltage of the AC input is positive and apply the current of the AC input to the rectifier capacitor. The driver unit outputs first to fourth drive control signals, and drives the first to fourth transistors. The switching device control circuit unit compares the first drive control signal and the second drive control signal with the AC input, and outputs switching device control signals to delay the first to fourth drive control signals based on the extents to delay.