Browse Prior Art Database

Stall Detection on Step Motor Using Back EMF Detection

IP.com Disclosure Number: IPCOM000036090D
Original Publication Date: 1989-Sep-01
Included in the Prior Art Database: 2005-Jan-28

Publishing Venue

IBM

Related People

Authors:
Heink, PJ [+details]

Abstract

This invention allows one to determine whether a step motor has stalled (is not running synchronously with the input pulses) by sensing the signals on one pair of the motor leads. As described, it will work in applications where a step motor is driven with two phases on, by a constant current bipolar driver.