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. 10, 2017
Filed:
Jun. 10, 2009
Young Ho Hong, Changwon-si, KR;
Ho Yong Jang, Changwon-si, KR;
Yoo Sool Yoon, Changwon-si, KR;
LG ELECTRONICS INC., Seoul, KR;
Abstract
A motor control device of an air conditioner may include: a DC/DC converter that level-changes a DC power supply supplied from the outside to output the level-charged DC power supply to a DC bus terminal; a bidirectional DC/AC converter that converts the DC power supply of the DC bus terminal into an AC power supply to transfer the converted AC power supply to a system, or that converts the AC power supply from the system into the DC/power supply to supply the converted DC power supply to the DC bus terminal; and an inverter that converts the DC power supply of the DC bus terminal into the AC power supply by a switching operation, and drives a compression motor by the converted AC power supply.