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.

Date of Patent:
Oct. 31, 2017

Filed:

Nov. 25, 2016
Applicant:

Anpec Electronics Corporation, Hsinchu, TW;

Inventors:

Chien-Lun Chu, Kaohsiung, TW;

Ching-Feng Lai, Taipei, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 6/00 (2016.01); H02P 6/17 (2016.01); H02P 6/06 (2006.01);
U.S. Cl.
CPC ...
H02P 6/17 (2016.02); H02P 6/06 (2013.01);
Abstract

A motor driving apparatus is disclosed, which stops driving a motor in a normal operation state and a start state. The motor driving apparatus adjusts a corresponding switch according to a pulse width modulation (PWM) table, to gradually increase a duty cycle of turning-on the corresponding switch. The PWM table indicates a relationship between a parameter and the duty cycle. The duty cycle increases with the monotone variation of the parameter. Accordingly, the motor driving apparatus can rapidly stop the operation of the motor, to avoid that the motor driving apparatus breaking down or the motor generating noise.


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