Title:
BRUSHLESS MOTOR DRIVER AND CONVEYOR SYSTEM
Document Type and Number:
Japanese Patent JP3424013
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a brushless motor controller which can supply the rotational information of a brushless motor to other control system.
SOLUTION: A pole detecting section 9 receives a signal (pole detection signal) concerning to the position of a rotor from a Hall element in a motor roller 4 and performs pulse waveform processing to produce a processing signal being delivered to a current switching section 8. Based on the processing signal received from the pole detecting section 9, the current switching section 8 controls current supply to a stator thus realizing rotation of the motor roller 4. A control section 7 is provided with control signals, including a motor on/off signal (rotation, stop), from a sequencer 20 and a processing signal based on that signal is delivered to the current switching section 8. A pulse generating section 19 receives a pole detection signal from the Hall element and generates a pulse waveform signal being delivered to an external output terminal 11a. The pulse waveform signal is delivered from the external output terminal 11a to a host control system through a signal line 14.
Inventors:
Kazuo Ito
Toshiyuki Tachibana
Toshiyuki Tachibana
Application Number:
JP11371899A
Publication Date:
July 07, 2003
Filing Date:
April 21, 1999
Export Citation:
Assignee:
Ito Electric Co., Ltd.
International Classes:
B65G13/06; B65G39/00; H02K29/00; H02P6/16; H02P6/17; H02P6/24; (IPC1-7): H02P6/16; B65G13/06; B65G39/00; H02K29/00; H02P6/24
Domestic Patent References:
| JP10279047A | ||||
| JP3207295A | ||||
| JP8251972A | ||||
| JP4501832A |
Attorney, Agent or Firm:
Takashi Fujita
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