JPS5662082A - Amplifying circuit for back electromotive voltage of direct current motor - Google Patents

Amplifying circuit for back electromotive voltage of direct current motor

Info

Publication number
JPS5662082A
JPS5662082A JP13666479A JP13666479A JPS5662082A JP S5662082 A JPS5662082 A JP S5662082A JP 13666479 A JP13666479 A JP 13666479A JP 13666479 A JP13666479 A JP 13666479A JP S5662082 A JPS5662082 A JP S5662082A
Authority
JP
Japan
Prior art keywords
speed
motor
voltage
back electromotive
electromotive voltage
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.)
Granted
Application number
JP13666479A
Other languages
Japanese (ja)
Other versions
JPS6042707B2 (en
Inventor
Toshio Hoshino
Masami Furuta
Susumu Yamamoto
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji 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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP54136664A priority Critical patent/JPS6042707B2/en
Publication of JPS5662082A publication Critical patent/JPS5662082A/en
Publication of JPS6042707B2 publication Critical patent/JPS6042707B2/en
Expired 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
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
    • H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
    • H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
    • H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
    • H02P7/285—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only
    • H02P7/29—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using pulse modulation
    • H02P7/291—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using pulse modulation with on-off control between two set points, e.g. controlling by hysteresis

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Direct Current Motors (AREA)

Abstract

PURPOSE:To control speed stably both in a low-speed mode and a high-speed mode by a method wherein the detecting value of back electromotive voltage is amplified greatly when low speed and slightly when high speed by using a semiconductor element, and the output is employed as speed detecting signals. CONSTITUTION:In a circuit which rectifies output from an AC power source 1 by means of diodes D1-D4 and applies the output to a DC motor 2 through a transistor Tr1, a potential dividing circuit of resistors R1 and R2 is connected in parallel with the DC motor 2, and the back electromotive voltage of the DC motor 2 is detected during an OFF period of the Tr1 while the detecting value is inputted to a Tr2 as bias voltage. Rectifying voltage in case of the OFF period of the Tr1 is used as a power source, but the back electromotive voltage as input signals is amplified at an amplification degree being inversely proportional to the speed of the motor because the rectifying voltage is in inverse proportion to the speed of the motor. The output voltage V3 is inputted to a controlling circuit C to control the transistor Tr1.
JP54136664A 1979-10-23 1979-10-23 Back electromotive voltage amplification circuit for DC motor Expired JPS6042707B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54136664A JPS6042707B2 (en) 1979-10-23 1979-10-23 Back electromotive voltage amplification circuit for DC motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54136664A JPS6042707B2 (en) 1979-10-23 1979-10-23 Back electromotive voltage amplification circuit for DC motor

Publications (2)

Publication Number Publication Date
JPS5662082A true JPS5662082A (en) 1981-05-27
JPS6042707B2 JPS6042707B2 (en) 1985-09-24

Family

ID=15180603

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54136664A Expired JPS6042707B2 (en) 1979-10-23 1979-10-23 Back electromotive voltage amplification circuit for DC motor

Country Status (1)

Country Link
JP (1) JPS6042707B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03143008A (en) * 1989-10-27 1991-06-18 Mitsubishi Electric Corp Noise filter

Also Published As

Publication number Publication date
JPS6042707B2 (en) 1985-09-24

Similar Documents

Publication Publication Date Title
SE8204003D0 (en) TVETTMASKIN
JPS55132111A (en) Power amplifying circuit
JPS57153583A (en) Speed controller for dc motor
JPS5662082A (en) Amplifying circuit for back electromotive voltage of direct current motor
JPS5643808A (en) Signal converting circuit
JPS57133706A (en) Power amplifier
JPS56132172A (en) Rectification circuit
ES2021242A6 (en) Device for controlling and regulating a direct-current electric motor
JPS5388115A (en) Controller for alternating current motors
JPS55136869A (en) Current controlling circuit for dummy load
JPS5568686A (en) Semiconductor light emission device
JPS57208708A (en) Amplifying circuit having dc feedback
JPS54102885A (en) Automatic ouput control circuit for semiconductor laser
JPS566510A (en) Power amplifying circuit
JPS57138890A (en) Constant-speed controlling circuit for dc motor
JPS57196607A (en) Amplifier
SU1156028A1 (en) Temperature controller
JPS5686087A (en) Controlling circuit for speed of dc motor
JPS55109004A (en) Detection circuit
JPS558222A (en) Dc motor drive controller
JPS57189565A (en) Chopper circuit
JPS5455109A (en) Controller for signal level
JPS55133696A (en) Current limiter for dc motor
JPS5771283A (en) Speed control circuit for dc motor
JPS5686086A (en) Controlling circuit for speed of dc motor