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:
Dec. 02, 2008
Filed:
Dec. 20, 2004
Magellan Chiu, Taoyuan Hsien, TW;
Venson Kuo, Taoyuan Hsien, TW;
Wen-shi Huang, Taoyuan Hsien, TW;
Ming-shi Tsai, Taoyuan Hsien, TW;
Magellan Chiu, Taoyuan Hsien, TW;
Venson Kuo, Taoyuan Hsien, TW;
Wen-Shi Huang, Taoyuan Hsien, TW;
Ming-Shi Tsai, Taoyuan Hsien, TW;
Delta Electronics, Inc., Taoyuan Sien, TW;
Abstract
Motors comprising stators and rotors having a plurality of north poles and south poles and methods of controlling the same. A first sensor and a second sensor are provided. The first and second sensors are disposed on the stator in a manner that the first and second sensors never simultaneously detect boundaries between the north and south poles during rotation of the rotor. If any one of the first and second sensors continuously detects a north pole or a south pole for a predetermined duration, the motor is shut off.