JPS57153590A - Controlling circuit for induction motor - Google Patents

Controlling circuit for induction motor

Info

Publication number
JPS57153590A
JPS57153590A JP56038560A JP3856081A JPS57153590A JP S57153590 A JPS57153590 A JP S57153590A JP 56038560 A JP56038560 A JP 56038560A JP 3856081 A JP3856081 A JP 3856081A JP S57153590 A JPS57153590 A JP S57153590A
Authority
JP
Japan
Prior art keywords
speed
comparator
output
inputted
induction motor
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
JP56038560A
Other languages
Japanese (ja)
Inventor
Yukio Aizawa
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 JP56038560A priority Critical patent/JPS57153590A/en
Publication of JPS57153590A publication Critical patent/JPS57153590A/en
Pending legal-status Critical Current

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  • Control Of Ac Motors In General (AREA)

Abstract

PURPOSE:To smoothly and efficiently control an induction motor and to reduce a defect by modulating by pulse width an input voltage with a comparison output of a deviation signal between the detected value of the rotating speed and a set value with a triangular wave and driving the motor. CONSTITUTION:The speed of an induction motor 2 is detected by a tachometer generator 4 and a speed detector 5, and a deviation signal between the detected value and the speed set value set by a speed setter 6 is inputted to a comparator 9 through a speed amplifier 7. A comparator 9 compares the output of the amplifier 7 and a triangular wave from a triangular wave generator 8. The output of a comparator 9 is inputted to a drive circuit 12, and switching circuits 13, 14 are controlled in switching. The output of the comparator 9 is inputted to a drive circuit 16 through an inverter 15, a switching circuit 17 is controlled, thereby controlling a rectifying circuit 18. The motor 2 is driven by a waveform approximating to the sinusoidal wave.
JP56038560A 1981-03-17 1981-03-17 Controlling circuit for induction motor Pending JPS57153590A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56038560A JPS57153590A (en) 1981-03-17 1981-03-17 Controlling circuit for induction motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56038560A JPS57153590A (en) 1981-03-17 1981-03-17 Controlling circuit for induction motor

Publications (1)

Publication Number Publication Date
JPS57153590A true JPS57153590A (en) 1982-09-22

Family

ID=12528675

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56038560A Pending JPS57153590A (en) 1981-03-17 1981-03-17 Controlling circuit for induction motor

Country Status (1)

Country Link
JP (1) JPS57153590A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS614482A (en) * 1984-06-15 1986-01-10 Fuji Xerox Co Ltd Motor control circuit of copying machine
JPS61501485A (en) * 1984-03-14 1986-07-17 サン−ゴバン・ヴイトラ−ジュ Pulse automatic control of asynchronous machines especially for processing glass bodies
US4851751A (en) * 1986-06-23 1989-07-25 Aviation Instrument Manufacturing Corp. Pulse width modulation power supply for loads such as artificial horizon indicator gyros and the like

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61501485A (en) * 1984-03-14 1986-07-17 サン−ゴバン・ヴイトラ−ジュ Pulse automatic control of asynchronous machines especially for processing glass bodies
JPS614482A (en) * 1984-06-15 1986-01-10 Fuji Xerox Co Ltd Motor control circuit of copying machine
US4851751A (en) * 1986-06-23 1989-07-25 Aviation Instrument Manufacturing Corp. Pulse width modulation power supply for loads such as artificial horizon indicator gyros and the like

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