METHOD FOR DRIVING STEPPING MOTOR

METHOD FOR DRIVING STEPPING MOTOR

PURPOSE:To obtain such smooth rotation that the stepping motor can be driven by a small angle drive at low speed and by a full step drive at high speed and is rotated smoothly without discontinuous point over the overall region from low speed rotation to high speed rotation or from high speed rotati...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: NAGASAWA HIROFUMI
Format: Patent
Sprache:eng
Schlagworte:
CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS
CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
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Beschreibung
Zusammenfassung:PURPOSE:To obtain such smooth rotation that the stepping motor can be driven by a small angle drive at low speed and by a full step drive at high speed and is rotated smoothly without discontinuous point over the overall region from low speed rotation to high speed rotation or from high speed rotation to low speed rotation. CONSTITUTION:At the time of low speed rotation, by changing on-off duty of an output element constituting a driving circuit 7 of a stepping motor 8, an exciting current in each phase of the stepping motor 8 is controlled to perform a small angle drive. At the time of high speed rotation, exciting current control in each phase is interrupted so as to perform a full step drive.