JPS57177292A - Dc brushless motor - Google Patents

Dc brushless motor

Info

Publication number
JPS57177292A
JPS57177292A JP56059880A JP5988081A JPS57177292A JP S57177292 A JPS57177292 A JP S57177292A JP 56059880 A JP56059880 A JP 56059880A JP 5988081 A JP5988081 A JP 5988081A JP S57177292 A JPS57177292 A JP S57177292A
Authority
JP
Japan
Prior art keywords
voltage
chopper
brushless motor
inverter
zone
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
JP56059880A
Other languages
Japanese (ja)
Inventor
Yuji Kawaguchi
Kenichi Iizuka
Hideo Uzuhashi
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 JP56059880A priority Critical patent/JPS57177292A/en
Publication of JPS57177292A publication Critical patent/JPS57177292A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/08—Arrangements for controlling the speed or torque of a single motor
    • H02P6/085—Arrangements for controlling the speed or torque of a single motor in a bridge configuration

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

PURPOSE:To enable control of the rotating speed of a DC brushless motor having good power factor by suitably chopping the rectified output voltage of a rectifier via a step-up chopper and a step-down chopper to shape the voltage to flat waveform and supplying the voltage to a polyphase inverter. CONSTITUTION:A step-up chopper 13 is operated in a zone Tb of low rectified voltage Vr from a rectifier of diodes 1, and a step-down chopper 9 is operated in the zone Ta, thereby obtaining a DC voltage Vd by smoothing the output voltage Vc of the chopper 13 as shown. This voltage Vd is supplied to an inverter having a transistor 5, and a DC brushless motor 6 is driven by the output of the inverter. The rotating speed control is performed by varying the DC voltage level by suitably controlled the current flow rates of the choppers 13, 9.
JP56059880A 1981-04-22 1981-04-22 Dc brushless motor Pending JPS57177292A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56059880A JPS57177292A (en) 1981-04-22 1981-04-22 Dc brushless motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56059880A JPS57177292A (en) 1981-04-22 1981-04-22 Dc brushless motor

Publications (1)

Publication Number Publication Date
JPS57177292A true JPS57177292A (en) 1982-10-30

Family

ID=13125896

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56059880A Pending JPS57177292A (en) 1981-04-22 1981-04-22 Dc brushless motor

Country Status (1)

Country Link
JP (1) JPS57177292A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59149783A (en) * 1983-02-09 1984-08-27 Toshiba Corp Drive device for motor
JPS59230489A (en) * 1983-05-13 1984-12-25 Rohm Co Ltd Drive system of brushless motor
JPS59230490A (en) * 1983-05-13 1984-12-25 Rohm Co Ltd Drive system of brushless motor
JPH10271893A (en) * 1997-03-24 1998-10-09 Mitsubishi Electric Corp Device for driving motor
CN1303751C (en) * 2003-05-09 2007-03-07 三洋电机株式会社 Motor drive device and air conditioning device
EP2043248A1 (en) * 2001-09-29 2009-04-01 Daikin Industries, Ltd. Phase current detection method, inverter control method, motor control method, and apparatuses used in these methods
EP2267882A1 (en) * 2009-06-24 2010-12-29 ebm-papst Mulfingen GmbH & Co. KG Method and control system for controlling a brushless electric motor
WO2017187890A1 (en) * 2016-04-28 2017-11-02 日立工機株式会社 Electric tool

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50109429A (en) * 1974-02-05 1975-08-28

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50109429A (en) * 1974-02-05 1975-08-28

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59149783A (en) * 1983-02-09 1984-08-27 Toshiba Corp Drive device for motor
JPS59230489A (en) * 1983-05-13 1984-12-25 Rohm Co Ltd Drive system of brushless motor
JPS59230490A (en) * 1983-05-13 1984-12-25 Rohm Co Ltd Drive system of brushless motor
JPH10271893A (en) * 1997-03-24 1998-10-09 Mitsubishi Electric Corp Device for driving motor
EP2043248A1 (en) * 2001-09-29 2009-04-01 Daikin Industries, Ltd. Phase current detection method, inverter control method, motor control method, and apparatuses used in these methods
CN1303751C (en) * 2003-05-09 2007-03-07 三洋电机株式会社 Motor drive device and air conditioning device
EP2267882A1 (en) * 2009-06-24 2010-12-29 ebm-papst Mulfingen GmbH & Co. KG Method and control system for controlling a brushless electric motor
EP2267883A1 (en) 2009-06-24 2010-12-29 ebm-papst Mulfingen GmbH & Co. KG Method and control system for controlling a brushless electric motor
CN101964621A (en) * 2009-06-24 2011-02-02 依必安-派特穆尔芬根股份有限两合公司 Method and control system for controlling a brushless electric motor
WO2017187890A1 (en) * 2016-04-28 2017-11-02 日立工機株式会社 Electric tool
JPWO2017187890A1 (en) * 2016-04-28 2018-12-27 工機ホールディングス株式会社 Electric tool
US10658957B2 (en) 2016-04-28 2020-05-19 Koki Holdings Co., Ltd. Power tool

Similar Documents

Publication Publication Date Title
NO970012L (en) Brushless direct current motor with accelerated phase rate control
CA2068591A1 (en) Variable speed hydromassage pump control
HK154196A (en) Motor unit for a fluid pump
EP0856936A4 (en) Motor controller
JPS6430500A (en) Brushless starting generator exciter
EP0398743A3 (en) Refrigerating system for use in vehicles
KR880010969A (en) Electric Power Steering Control
JPS5783194A (en) Ac motor controlling device using pulse width modulation inverter
JPS57177292A (en) Dc brushless motor
DE3877956D1 (en) CONTROL METHOD FOR THE ROTATIONAL SPEED OF AN ELECTRIC MOTOR.
CN205811887U (en) A kind of have the pwm control signal generation circuit that minimum duty cycle sets
JPS5768687A (en) Driving device for direct current motor
JPS56141798A (en) Controlling device of induction motor
US5664048A (en) Speed control circuit for a DC motor
JPS5561294A (en) Speed controller of alternating current motor
JPS57132769A (en) Control system for voltage type pwm inverter
JPS579285A (en) Inverter for driving motor
JPS5583402A (en) Mobile power supply car
JPS5668273A (en) Inverter
JPS56103981A (en) Controlling device for thyrister motor
JPS56150991A (en) Brushless direct current motor
JPS5320251A (en) Speed control system for elevator for use at time of interruption of current supply
KR880002301Y1 (en) Freezing control circuit of a refrigerator
GB1533502A (en) Battery/mains generator set for the production of interruption-free current
JPS57170097A (en) Shaft generator