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:
Feb. 18, 2020
Filed:
Nov. 03, 2017
Applicant:
Johnson Electric S.a., Murten, CH;
Inventors:
Chiping Sun, Hong Kong, CN;
Qiubao Wang, Shenzhen, CN;
Ken Wong, Hong Kong, CN;
Enhui Wang, Shenzhen, CN;
Haibo Jiang, Shenzhen, CN;
Yunlong Jiang, Shenzhen, CN;
Assignee:
JOHNSON ELECTRIC INTERNATIONAL AG, Murten, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 29/024 (2016.01); H02P 6/17 (2016.01); H02P 27/08 (2006.01);
U.S. Cl.
CPC ...
H02P 29/027 (2013.01); H02P 6/17 (2016.02); H02P 27/08 (2013.01);
Abstract
A motor-driven integrated circuit comprises a PWM output unit and an overcurrent comparator coupled with the PWM output unit. The overcurrent comparator receives a detection signal and compares the detection signal with a reference value. When the detection signal is larger than the reference value, the overcurrent comparator outputs an overcurrent protection signal to control the PWM output unit enter an overcurrent protection mode.