Invention Grant
- Patent Title: Zero crossing detection circuit for motor controller and method therefor
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Application No.: US14671076Application Date: 2015-03-27
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Publication No.: US10298159B2Publication Date: 2019-05-21
- Inventor: Chongli Wu , Jie Jin , Yizhong Zhang
- Applicant: Freescale Semiconductor, Inc.
- Applicant Address: US TX Austin
- Assignee: NXP USA, Inc.
- Current Assignee: NXP USA, Inc.
- Current Assignee Address: US TX Austin
- Priority: CN201410858406 20141223
- Main IPC: H02P6/00
- IPC: H02P6/00 ; H02P6/16 ; H02P6/182
Abstract:
A method includes selectively communicating each of a plurality of motor winding signals to a first node at an integrated circuit based on whether the corresponding motor winding is energized. A zero-crossing event at an unenergized motor winding signal is determined based the unenergized motor winding signal and based on a signal at the first node.
Public/Granted literature
- US20160181956A1 ZERO CROSSING DETECTION CIRCUIT FOR MOTOR CONTROLLER AND METHOD THEREFOR Public/Granted day:2016-06-23
Information query
