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:
Mar. 05, 2013
Filed:
Apr. 26, 2007
Jae-hak Choi, Seoul, KR;
Jang-ho Shim, Seoul, KR;
Sung-ho Lee, Gyeonggi-Do, KR;
Jin-soo Park, Incheon, KR;
Jae-min Kim, Seoul, KR;
Jae-Hak Choi, Seoul, KR;
Jang-Ho Shim, Seoul, KR;
Sung-Ho Lee, Gyeonggi-Do, KR;
Jin-Soo Park, Incheon, KR;
Jae-Min Kim, Seoul, KR;
LG Electronics, Inc., Seoul, KR;
Abstract
Entry of a synchronous speed of a rotor can be facilitated by increasing a starting torque by adjusting a magnetization application time for magnetizing the rotor according to whether or not a starting capacitor is used. The present invention includes: a control unit that outputs a control signal for controlling an application time of a magnetizing current according to whether or not a starting capacitor is used; and a switch that supplies power to an exciting coil according to the control signal outputted from the control unit.