AC motor controller

[civictypeR]

Hey guys , just asking , for AC motors , we have to control the voltage in order to control the speed , At first I thought of using SCR but SCR is a manual device as i mean it is an analogue device. Is there any other equipments to control the voltage, I using a PIC microcontroller but i run out of ideas controlling the speed of an AC motor . How about voltage regulator or inverters ?

Thanks ,
CivictypeR

feel free to give comments

 

[Nigel Goodwin]

You first need to specify the motor type, most AC motors can't be speed controlled via their supply voltage.

 

[civictypeR]

hey nigel, i am using a 230V AC motor used in the normal fan. THanks .
Civic type R
Thanks again

 

[Nigel Goodwin]

That doesn't specify the type of motor?, but it doesn't sound like it can be speed controlled easily.

 

[civictypeR]

Hi Nigel,
I have opened up a Table fan, they have a few switches which control the output of the voltage, . But i am clueless about how does a remote control fan controls its speed . I just want to control my fan remotely the speed.

Thanks ,
civictypeR

 

[Nigel Goodwin]

They usually switch either windings or capacitors.

 

[em2006]

...i am using a 230V AC motor used in the normal fan.

I think your motor use a shaded-pole motor construction (a typical AC fan).
You can't to control the speed by means of supply voltage.
https://www.epanorama.net/links/motorcontrol.html#ac