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Patent Searching and Data


Title:
DRIVE CONTROLLER FOR DC MOTOR
Document Type and Number:
Japanese Patent JP2002325489
Kind Code:
A
Abstract:

To provide a drive control circuit for a DC electric motor with a brush commutator which performs drive control or driving current pulses.

A bias voltage (E1) in the extent of not being enough to rotate an electrical motor is impressed to an input terminal (9) of the motor, and a drive current (E2) is supplied to a moor input terminal (10). A microprocessor (1) receives a start signal, impresses voltage to the gate terminal of a transistor (5), impresses a bias voltage, makes an FET(6) operate by a set period after a specified time, and supplies a drive current pulse to the electrical motor. When drive current pulses are not impressed over a specified time, the transistor (5) is turned off and the impression of the bias voltage is stopped.


Inventors:
AONUMA SABURO
Application Number:
JP2001163419A
Publication Date:
November 08, 2002
Filing Date:
April 24, 2001
Export Citation:
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Assignee:
SATAKO KK
International Classes:
H02P7/29; (IPC1-7): H02P7/29