JPS6469296A - Controlling circuit for brushless motor - Google Patents

Controlling circuit for brushless motor

Info

Publication number
JPS6469296A
JPS6469296A JP62224050A JP22405087A JPS6469296A JP S6469296 A JPS6469296 A JP S6469296A JP 62224050 A JP62224050 A JP 62224050A JP 22405087 A JP22405087 A JP 22405087A JP S6469296 A JPS6469296 A JP S6469296A
Authority
JP
Japan
Prior art keywords
roms
brushless motor
supplied
trapezoidal
forming
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
JP62224050A
Other languages
Japanese (ja)
Inventor
Minoru Shimizu
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.)
Tamagawa Seiki Co Ltd
Original Assignee
Tamagawa Seiki Co 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 Tamagawa Seiki Co Ltd filed Critical Tamagawa Seiki Co Ltd
Priority to JP62224050A priority Critical patent/JPS6469296A/en
Publication of JPS6469296A publication Critical patent/JPS6469296A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Ac Motors In General (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

PURPOSE:To reduce torque ripples and to obtain a sufficient torque by forming the waveform of a winding current input to phase coils of a drive winding to be of a trapezoidal wave. CONSTITUTION:An angle position signal 10a from an angle sensor 10 obtained by the rotation of the rotor of a brushless motor 7 is supplied to ROMs 13, 13A and 13B. A trapezoidal wave forming software for forming a trapezoidal wave is stored in the ROMs 13, 13A and 13B. The trapezoidal waves from the ROMs 13, 13A and 13B are supplied through multipliers 12, 12A and 12B to input terminals 2, 2A and 2B, and the current waveforms supplied to coils 7a, 7b and 7c become trapezoidal waves.
JP62224050A 1987-09-09 1987-09-09 Controlling circuit for brushless motor Pending JPS6469296A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62224050A JPS6469296A (en) 1987-09-09 1987-09-09 Controlling circuit for brushless motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62224050A JPS6469296A (en) 1987-09-09 1987-09-09 Controlling circuit for brushless motor

Publications (1)

Publication Number Publication Date
JPS6469296A true JPS6469296A (en) 1989-03-15

Family

ID=16807804

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62224050A Pending JPS6469296A (en) 1987-09-09 1987-09-09 Controlling circuit for brushless motor

Country Status (1)

Country Link
JP (1) JPS6469296A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03293990A (en) * 1990-04-12 1991-12-25 Nishishiba Electric Co Ltd Controller for ac motor
JP2002369569A (en) * 2001-06-04 2002-12-20 Nsk Ltd Brushless motor drive control unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03293990A (en) * 1990-04-12 1991-12-25 Nishishiba Electric Co Ltd Controller for ac motor
JP2002369569A (en) * 2001-06-04 2002-12-20 Nsk Ltd Brushless motor drive control unit

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