JPS5473222A - Device of controlling speed of motor - Google Patents

Device of controlling speed of motor

Info

Publication number
JPS5473222A
JPS5473222A JP14141077A JP14141077A JPS5473222A JP S5473222 A JPS5473222 A JP S5473222A JP 14141077 A JP14141077 A JP 14141077A JP 14141077 A JP14141077 A JP 14141077A JP S5473222 A JPS5473222 A JP S5473222A
Authority
JP
Japan
Prior art keywords
transistor
motor
commutators
rotor
speed
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
JP14141077A
Other languages
Japanese (ja)
Inventor
Yutaka Hamano
Susumu Miyazawa
Chihiro Ando
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP14141077A priority Critical patent/JPS5473222A/en
Publication of JPS5473222A publication Critical patent/JPS5473222A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To positively detect speed in a low speed range, by detecting the change of current flowing through a transistor of transistor commutators as a speed signal, and by controlling the opening and closing of a chopper transistor.
CONSTITUTION: With a motor consisting of stator windings 61, 62, 63 and a rotor 7, location detectors 181,∼183 are connected to the rotor, and transistor commutators 81∼83 to a stator. When the position of the rotor is detected by means of a hall element 19, transistors 25, 29, 33 conduct by an output signal of the detecting element, a transistor 9 of the transistor commutators conducts, and the stator is conducted. A transistor 11 simultaneously conducts at that time, current flowing through the tansistors 9, 11 varies by the dimensions of the loads of the motor 5, and a transistor 2 is in ON-OFF by a resistance 14, a condenser 15, a diode 161 and a variable resistance 17, thus controlling the speed of the motor.
COPYRIGHT: (C)1979,JPO&Japio
JP14141077A 1977-11-25 1977-11-25 Device of controlling speed of motor Pending JPS5473222A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14141077A JPS5473222A (en) 1977-11-25 1977-11-25 Device of controlling speed of motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14141077A JPS5473222A (en) 1977-11-25 1977-11-25 Device of controlling speed of motor

Publications (1)

Publication Number Publication Date
JPS5473222A true JPS5473222A (en) 1979-06-12

Family

ID=15291348

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14141077A Pending JPS5473222A (en) 1977-11-25 1977-11-25 Device of controlling speed of motor

Country Status (1)

Country Link
JP (1) JPS5473222A (en)

Similar Documents

Publication Publication Date Title
JPS54103506A (en) Rotation control device
JPS52153034A (en) Electric air-fuel ratio controlling device
JPS5291472A (en) Voltage detection circuit
JPS5473222A (en) Device of controlling speed of motor
KR890017127A (en) Electric Power Steering
JPS5556495A (en) A.c. motor controller
JPS5549964A (en) Driver for brushless dc motor
JPS55129760A (en) Reversing detection circuit for motor
JPS5547515A (en) Abnormality detection device of semiconductor switch element
KR980003597A (en) Output current measuring device of AC generator
JPS568559A (en) Current detecting circuit
SU612982A1 (en) Device for detecting seam of fabric
JPS5482613A (en) Automatic fan speed regulator for air conditioner
JPS5352913A (en) Sensitivity adjustment for servoed speed control
JPS5543963A (en) Motor controller
Jeong et al. Speed Estimation Based Quick Torque Control of Induction Motors in the Very Low Speed Region
JPS5778357A (en) Brushless direct current motor
JPS5246427A (en) Instantaneous power off detector for speed controller of induction mot or
KR950034962A (en) Washing motor overcurrent detector of washing machine
JPS5288714A (en) Speed control circuit for brushless motor
JPS5365922A (en) Fault detection for cyclo converter
JPS5788892A (en) Rotating speed control device for brushless motor
JPS5374218A (en) Control device of semi-conductor electric power converting deviec
JPS5352912A (en) Sensitivity adjustment for servoed speed control
JPS5217612A (en) Rotation detecting circuit of the dc motor controlled by thyristor