JPH04165951A - Brushless motor - Google Patents

Brushless motor

Info

Publication number
JPH04165951A
JPH04165951A JP28703790A JP28703790A JPH04165951A JP H04165951 A JPH04165951 A JP H04165951A JP 28703790 A JP28703790 A JP 28703790A JP 28703790 A JP28703790 A JP 28703790A JP H04165951 A JPH04165951 A JP H04165951A
Authority
JP
Japan
Prior art keywords
power source
source line
signal line
line
signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP28703790A
Other languages
Japanese (ja)
Inventor
Hisanori Toyoshima
Atsushi Hosokawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP28703790A priority Critical patent/JPH04165951A/en
Publication of JPH04165951A publication Critical patent/JPH04165951A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To see that the signal line is not affected by the radiant noise from a power source line thereby generating a more accurate detection signal so as to elevate various properties of a brushless motor by leading out the signal line in the direction opposed to the power source line.
CONSTITUTION: During operation of a brushless motor 2, for the current flowing in a power source line 29, the changeover of the direction or ON/OFF of current application are performed repeatedly, so the radiant noise resulting from that occurs from the power source line 29. On the other hand, a detector 25 is constituted of a low-voltage circuit, so the current value transmitted by the signal line 28 is small, and it is subject to the influence of the external noise. In this case, the signal line is led out from the direction opposite to the power source line 29. Hereby, the effect to the signal line 28 by the radiant noise of the power source line 29 can be removed, so the drop of the various properties of a motor 2, caused by the divergence of the conduction period by the occurrence of an error signal, commutation error, etc., can be prevented.
COPYRIGHT: (C)1992,JPO&Japio
JP28703790A 1990-10-26 1990-10-26 Brushless motor Pending JPH04165951A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP28703790A JPH04165951A (en) 1990-10-26 1990-10-26 Brushless motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP28703790A JPH04165951A (en) 1990-10-26 1990-10-26 Brushless motor

Publications (1)

Publication Number Publication Date
JPH04165951A true JPH04165951A (en) 1992-06-11

Family

ID=17712229

Family Applications (1)

Application Number Title Priority Date Filing Date
JP28703790A Pending JPH04165951A (en) 1990-10-26 1990-10-26 Brushless motor

Country Status (1)

Country Link
JP (1) JPH04165951A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017205674A (en) * 2017-09-05 2017-11-24 株式会社マキタ Cleaner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017205674A (en) * 2017-09-05 2017-11-24 株式会社マキタ Cleaner

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