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:
Nov. 22, 2011
Filed:
Dec. 11, 2008
Rong-hwang Horng, Taipei Hsien, TW;
You-ren Lin, Taipei Hsien, TW;
Rong-cong Hung, Taipei Hsien, TW;
Shih-chang Chen, Taipei Hsien, TW;
Shen-an Chen, Taipei Hsien, TW;
Yaw-shen Lai, Taipei Hsien, TW;
Rong-Hwang Horng, Taipei Hsien, TW;
You-Ren Lin, Taipei Hsien, TW;
Rong-Cong Hung, Taipei Hsien, TW;
Shih-Chang Chen, Taipei Hsien, TW;
Shen-An Chen, Taipei Hsien, TW;
Yaw-Shen Lai, Taipei Hsien, TW;
Foxnum Technology Co., Ltd., Tu-Cheng, New Taipei, TW;
Abstract
A location system is configured for determining a magnetic pole position of a motor. The location system includes a motor driver, a current control module, a current feedback apparatus, a speed feedback apparatus, and a magnetic pole position location module. The current control module is configured for set current of the motor via the motor driver. The current feedback apparatus is configured for sensing an actual current of the motor. The speed feedback apparatus is configured for sensing an actual speed of the motor. The magnetic pole position location module is configured for inputting a magnetic pole position of the motor, receiving the actual current from the current feedback apparatus, receiving the actual speed from the speed feedback apparatus, and processing the actual current and the actual speed to obtain an initial magnetic pole position.