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:
May. 28, 2013
Filed:
Jun. 24, 2011
Shih-hsiang Chien, Yilan County, TW;
Shih-hsin Hsu, Taipei County, TW;
Yee-pien Yang, Taipei, TW;
Tian-hua Liu, New Taipei, TW;
Jui-ling Chen, Changhua County, TW;
Shih-Hsiang Chien, Yilan County, TW;
Shih-Hsin Hsu, Taipei County, TW;
Yee-Pien Yang, Taipei, TW;
Tian-Hua Liu, New Taipei, TW;
Jui-Ling Chen, Changhua County, TW;
Industrial Technology Research Institute, Hsin-chu, TW;
Abstract
The present disclosure related to a control method for a sensorless motor with energy recovery ability, using which duty cycle of a sensorless motor can be changed by the control of complementary switches so as to enable the sensorless motor to switch between a high efficiency driving operation and an energy recovery operation while being activated. Thereby, the conduction loss and the wear and tear to the switches can be minimized while simultaneously enhancing the energy recovery efficiency and thus improving the battery life.