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Patent Searching and Data


Title:
MOTOR DRIVING CONTROL CIRCUIT
Document Type and Number:
Japanese Patent JP2000224758
Kind Code:
A
Abstract:

To provide a motor driving control circuit for driving a motor under control accurately without erroneous operation.

A rotating state and a locked state of a motor (M) are detected by a tacho-generator TG, and power continuity or power break to the motor (M) is carried out through a breaking means (first field effect transistor FET1, second field effect transistor FET2, relay circuit) on the basis of the detected result of the tacho-generator TG. As a result, the judgment of the rotating or locked state at the motor (M) can be carried out accurately without irregularity as compared with current control using an electronic part. Without erroneous operation, the motor (M) can be driven under control surely.


Inventors:
HAYASHI KAZUOKU
HIRATA SHOICHI
Application Number:
JP1864699A
Publication Date:
August 11, 2000
Filing Date:
January 27, 1999
Export Citation:
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Assignee:
ICHIKOH INDUSTRIES LTD
International Classes:
H02H7/093; H02P1/22; H02P3/08; (IPC1-7): H02H7/093; H02P1/22; H02P3/08
Attorney, Agent or Firm:
Masami Akimoto