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. 08, 2012
Filed:
Jul. 30, 2009
Applicants:
Ming-jung Tsai, Chang-Hua, TW;
Ching-sheng LI, Hsinchu County, TW;
Kun-min Chen, Changhua County, TW;
Inventors:
Ming-Jung Tsai, Chang-Hua, TW;
Ching-Sheng Li, Hsinchu County, TW;
Kun-Min Chen, Changhua County, TW;
Assignee:
Anpec Electronics Corporation, Hsinchu Science Park, Hsin-Chu, TW;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 7/00 (2006.01); H02P 3/12 (2006.01); H02P 6/04 (2006.01); H02P 23/12 (2006.01); G05B 19/40 (2006.01);
U.S. Cl.
CPC ...
Abstract
A control method of a current limit of a DC motor includes generating a reference voltage according to a preset current limit value of a DC motor; comparing the reference voltage with the voltage drop of a power control switch which drives the DC motor to generate a compare result; and controlling the power delivered to the DC motor according to the compare result in order to limit the current of the DC motor.