Connect with us

Control AC motor speed with mosfet?

Reply to Thread

Discussion in 'Sensors and Actuators' started by bigone5500, Oct 31, 2016.

Scroll to continue with content
  1. Oct 31, 2016 #1
    bigone5500

    bigone5500

    712
    120
    Apr 9, 2014
    I am going to start work on a project that will involve a small turntable motor from a microwave. It is rated at 120VAC, 3.3W, .0275A. I want to slow it down a bit so I am thinking that I can control it via PWM through a mosfet of some kind. However, I think that a mosfet will only conduct one way. How can I accomplish this task? I want to use an arduino of some sort to send the pulse to the controller (mosfet?) and use a potentiometer to speed it up or down.

    *edit* I just read somewhere about using a solid state relay and sending the pulses to it to control the speed.

    Thoughts/suggestions???

    Thanks!
     
    Last edited: Nov 1, 2016
  2. Nov 1, 2016 #2
    (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    25,481
    2,830
    Jan 21, 2010
    They are synchronous motors (I believe).

    Frequency control will be the effective method.

    Perhaps you could pass through every 3rd half cycle. It's something I've thought of doing, but have yet to try it.
     
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Similar Threads

  1. AC motor speed control

  2. Control Speed of AC Induction motor with DAC

  3. Motor Speed Control

  4. Motor speed control

  5. Motor speed control

  6. Small dc motor speed control

  7. Potentiometer to control motor speed

  8. Motor with Speed Controller

Loading...
Electronics Point Logo
Continue to site
Quote of the day

“”

-