JPS5529227A - Speed-control loop circuit for rotary machine - Google Patents

Speed-control loop circuit for rotary machine

Info

Publication number
JPS5529227A
JPS5529227A JP10055178A JP10055178A JPS5529227A JP S5529227 A JPS5529227 A JP S5529227A JP 10055178 A JP10055178 A JP 10055178A JP 10055178 A JP10055178 A JP 10055178A JP S5529227 A JPS5529227 A JP S5529227A
Authority
JP
Japan
Prior art keywords
resistor
turned
speed
integration capacitor
control loop
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
JP10055178A
Other languages
Japanese (ja)
Inventor
Takashi Kimura
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP10055178A priority Critical patent/JPS5529227A/en
Publication of JPS5529227A publication Critical patent/JPS5529227A/en
Pending legal-status Critical Current

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  • Control Of Electric Motors In General (AREA)

Abstract

PURPOSE: To suppress the drift of rotary machines having a simple structure by constituting a discharge circuit which discharges an integration capacitor throuth a resistor when an input switch is turned OFF.
CONSTITUTION: A discharge circuit is constituted by a relay 10 having contacts 10A to 10C which are driven by a switch 5, a resistor 11 which discharges an integtation capacitor 7 by the action of the contacts 10B, and a resistor 12 which decreases the gain of an operation amplifier 6 during the period of discharging of the integration capacitor 7. When input switch 5 is turned OFF, the relay 1 is also turned OFF, and the speed control input is turned OFF. Then, the integration capacitor 7 is isolated from the operational amplifier 6 and discharged throuth the resistor 11. A resistor 12 is connected to the operation amplifier 7, and the gain is decreased. Since the outputs of the operation amplifiers 3 and 6 are made sufficiently small, the drift of the motor can be almost completely suppressed.
COPYRIGHT: (C)1980,JPO&Japio
JP10055178A 1978-08-17 1978-08-17 Speed-control loop circuit for rotary machine Pending JPS5529227A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10055178A JPS5529227A (en) 1978-08-17 1978-08-17 Speed-control loop circuit for rotary machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10055178A JPS5529227A (en) 1978-08-17 1978-08-17 Speed-control loop circuit for rotary machine

Publications (1)

Publication Number Publication Date
JPS5529227A true JPS5529227A (en) 1980-03-01

Family

ID=14277071

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10055178A Pending JPS5529227A (en) 1978-08-17 1978-08-17 Speed-control loop circuit for rotary machine

Country Status (1)

Country Link
JP (1) JPS5529227A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5727792U (en) * 1980-07-17 1982-02-13
JPS6022609U (en) * 1983-07-22 1985-02-16 東レ株式会社 Exterior wall insulation
JPS6192181A (en) * 1984-10-08 1986-05-10 Matsushita Electric Ind Co Ltd Motor speed control device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5727792U (en) * 1980-07-17 1982-02-13
JPS6022609U (en) * 1983-07-22 1985-02-16 東レ株式会社 Exterior wall insulation
JPS6192181A (en) * 1984-10-08 1986-05-10 Matsushita Electric Ind Co Ltd Motor speed control device

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