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. 16, 2005
Filed:
Mar. 12, 2003
Jae Yoo Yoo, Gyeonggi-Do, KR;
Chel Woong Lee, Seoul, KR;
Ji Won Sung, Seoul, KR;
Hyuk Lee, Gyeonggi-Do, KR;
Jae Yoo Yoo, Gyeonggi-Do, KR;
Chel Woong Lee, Seoul, KR;
Ji Won Sung, Seoul, KR;
Hyuk Lee, Gyeonggi-Do, KR;
LG Electronics Inc., Seoul, KR;
Abstract
In an apparatus and a method for controlling operation of a compressor, by removing deviation generated by resistance and inductance and removing an error in a stroke estimation value of a compressor, operation of the compressor can be accurately controlled. The apparatus includes a counter electromotive force detector for detecting a counter electromotive force generated at a motor of a compressor. A stroke calculator calculates a stroke estimation value of the compressor on the basis of the counter electromotive force, and a stroke controller controls a stroke of the compressor by varying a voltage applied to the motor on the basis of the calculated stroke estimation value and a stroke reference value.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile