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:
Aug. 02, 2022
Filed:
Jan. 25, 2019
Samsung Electronics Co., Ltd., Suwon-si, KR;
Sungyong Joo, Suwon-si, KR;
Jeongil Kang, Suwon-si, KR;
SAMSUNG ELECTRONICS CO., LTD., Suwon-si, KR;
Abstract
A power conversion device which includes an input terminal that receives a rectified AC power, an active power factor correction circuit including a switching element that turns on or off and boosts an input voltage to correspond to a turn on time, an output terminal connected to an output of the active power factor correction circuit. The power conversion device includes a comparator that compares an output voltage of the output terminal with a reference voltage and outputs a signal having a different magnitude depending on the comparison result, a control circuit that adjusts a duty cycle of the control signal depending on an output signal of the comparator, and a discharge circuit electrically connected between the input terminal and an output of the comparator, and when the input voltage is equal to or greater than a first specified voltage, that discharges the output of the comparator.