Patent · US Expired

Circuit arrangement for the continual operation monitoring and error diagnosis of a stepper motor

US4392097A · kind A · utility

1Cited by

2References

11Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Jurgen B. Landrock · Ehningen, DE
Manfred Perske · Sindelfingen, DE
Halim S. Tandjung · Böblingen, DE

Key dates

Filing date	Nov 3, 1980
Grant date	Jul 5, 1983
Priority date	—
Expiry date	Nov 3, 2000

Classification

Technology area (CPC H)Electricity
CPC primaryH02P8/36
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A circuit arrangement is provided for the continual operation monitoring and error diagnosis of a stepper motor controllable at its windings by control logic and driver stages using stepping pulses which are phase-shifted relative to each other. A multi-stage ring counter is used for logically representing the desired values of the stepping pulses with the ring counter under control of the stepping control pulses applied to the input of the control logic stage. A multi-stage compare circuit arrangement is used to compare the logical values of the stepping pulses from the ring counter with the logical values of the output signals from both the control logic stage and driver stage.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.