Title:
STEPPER MOTOR STOP AND STALLING DETECTION METHOD, AND STOP-DETECTOR-EQUIPPED STEPPER MOTOR
Document Type and Number:
WIPO Patent Application WO2005043743
Kind Code:
A3
Abstract:
The invention relates to a stop-detection method which is intended for a multi-phase synchronous geared motor that is controlled in stepping mode, consisting in measuring the sum of the currents circulating in each of the N phases of the geared motor. The invention is characterised in that the stop detection threshold is calculated in relation to the change in the sum of said currents.
Inventors:
RONDOT ERIC (FR)
PRUDHAM DANIEL (FR)
PRUDHAM DANIEL (FR)
Application Number:
PCT/FR2004/050557
Publication Date:
June 23, 2005
Filing Date:
November 03, 2004
Export Citation:
Assignee:
MOVING MAGNET TECH (FR)
RONDOT ERIC (FR)
PRUDHAM DANIEL (FR)
RONDOT ERIC (FR)
PRUDHAM DANIEL (FR)
International Classes:
H02H7/085; H02P8/34; H02P8/36; H02P8/38; (IPC1-7): H02P8/38; H02H7/085
Foreign References:
| DE29609570U1 | 1996-10-24 | |||
| US5666066A | 1997-09-09 | |||
| FR2721456A1 | 1995-12-22 | |||
| DE3516502A1 | 1986-11-13 | |||
| DE2361003A1 | 1975-06-19 | |||
| US20020173935A1 | 2002-11-21 |
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