IDiyas

For the Inventor, By the Inventor

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.:

US 10587182 B1

PDFFull Text
Date of Patent:
Mar. 10, 2020

Filed:

Jun. 24, 2016

Power conversion device having a control unit that outputs based on detected inductor current

Applicant:

Lg Electronics Inc., Seoul, KR;

Inventors:

Kyeongtae Kim, Seoul, KR;

Yonghwa Lee, Seoul, KR;

Jeongeon Oh, Seoul, KR;

Assignee:

LG ELECTRONICS INC., Seoul, KR;

Attorney:

KED & Associates LLP

Primary Examiner:

Nguyen Tran

Assistant Examiner:

David A Singh

Int. Cl.
CPC ...
H02M 1/12 (2006.01); H02M 1/14 (2006.01); H02M 3/156 (2006.01); H02M 7/48 (2007.01); H02M 1/15 (2006.01); H02M 1/42 (2007.01); F24F 11/88 (2018.01); H02M 7/5395 (2006.01); F24F 11/89 (2018.01); H02M 3/07 (2006.01); H02M 5/451 (2006.01); H02M 3/158 (2006.01); H02M 5/458 (2006.01); H02M 1/00 (2006.01); H01F 30/12 (2006.01);
U.S. Cl.
CPC ...
H02M 1/12 (2013.01); F24F 11/88 (2018.01); F24F 11/89 (2018.01); H02M 1/143 (2013.01); H02M 1/15 (2013.01); H02M 1/4225 (2013.01); H02M 3/07 (2013.01); H02M 5/451 (2013.01); H02M 7/48 (2013.01); H02M 7/5395 (2013.01); H01F 30/12 (2013.01); H02M 5/458 (2013.01); H02M 2001/007 (2013.01); H02M 2001/0009 (2013.01); H02M 2003/1566 (2013.01); H02M 2003/1586 (2013.01);
Abstract

The power conversion device may include a rectification unit, a boost converter for boosting power rectified from the rectification unit, a dc-end capacitor connected to an output end of the boost converter, an inductor current detection unit for detecting an inductor current flowing in an inductor within the boost converter, a dc-end voltage detection unit for detecting voltages of both ends of the dc-end capacitor, and a control unit for controlling the boost converter. The control unit may generate and output a converter switching control signal by performing proportional resonant control for a duty command value of a switching element within the boost converter, based on the detected inductor current and dc-end voltage. Therefore, a harmonic current component flowing through a dc-end capacitor induced by a ripple component of an input voltage may be reduced.

Find Patent Forward Citations

Loading…