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speed control of single phase induction motor with TRIAC

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alpha91

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i want to use a 1µF capacitor to start the motor with a TRIAC to control the speed. Does anyone have the TRIAC circuit :?:
 

Raza

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i want to use a 1µF capacitor to start the motor with a TRIAC
and
TRIAC to control the speed
Do you want two separate circuits for starting and speed controlling?

This article gives a few circuits with application notes.
http://www.st.com/internet/com/TECH...AL_LITERATURE/APPLICATION_NOTE/CD00003856.pdf
And here is project with PCB layout, too.
Downloads / Electronic Circuits / AC Motor Speed Control using Triac : 8051 Microcontroller Projects AVR PIC Projects Tutorials Ebooks Libraries codes
 

alpha91

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ya... two separating circuit. is it possible ?
 

Raza

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Look starting of motor has nothing to do with Speed control, as first motor has to start and go running then it will be possible to control speed. Here is a circuit to give you bit clarification of this:
acmotcon.gif
And if you want circuit notes, visit:
AC Motor Speed Controller

Any further help, if needed, is welcomed.
 

alpha91

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oh... ok, is this can work on single phase ?
 

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