JPS57153590A - Controlling circuit for induction motor - Google Patents
Controlling circuit for induction motorInfo
- 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
Links
Landscapes
- 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.
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)
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 |
-
1981
- 1981-03-17 JP JP56038560A patent/JPS57153590A/en active Pending
Cited By (3)
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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