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:
May. 05, 2026

Filed:

Jun. 13, 2024
Applicant:

Anpec Electronics Corporation, Hsinchu, TW;

Inventors:

Kun-Min Chen, Hsinchu City, TW;

Yi-Cheng Liu, New Taipei City, TW;

Yen-Ping Wang, Hsinchu, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 21/34 (2016.01); H02P 21/18 (2016.01); H02P 21/22 (2016.01); H02P 23/14 (2006.01); H02P 27/14 (2006.01);
U.S. Cl.
CPC ...
H02P 21/34 (2016.02); H02P 21/18 (2016.02); H02P 21/22 (2016.02); H02P 23/14 (2013.01); H02P 27/14 (2013.01);
Abstract

A motor driver for starting up a motor having any resistance is provided. The motor driver outputs a motor startup signal to the motor according to an initial startup duty cycle, senses a current value of a current signal of the motor multiple times, compares the current value of the motor that is sensed for multiple times with a reference current value and accordingly sets a plurality of pulse waves of a pulse width modulation signal. Then, the motor driver detects duty cycles of the pulse waves of the pulse width modulation signal as startup detection duty cycles. Then, the motor driver outputs a motor startup signal to the motor according to the startup detection duty cycles.


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