Using PWM to control 12v 1.5 amp dc motor

Projects General Guidance
1

Hello,
I'm working on an industrial project. I want to control the motion of the high torque dc motor (12V 1.5 amps) using arduino PWM. Arduino PWM gives max 5 volts, I intend to connect it to a transistor which acts as a switch, so it can give 12v PWM when connected the emmiter to 12v independent supply. But still my current requirement will not be accomplished if regular transistor is used. So which transistor do i use for my application??? Or will i have to use two different transistors such that arduino triggers one and it triggers other. Suggest the suitable transistor and method please..!!

Thanks,
Pritish Shardul

2

You should pick an electronics Web site you like and walk through their offerings to find a transistor that meets your requirements.

Not sure what a "regular transistor" is, as opposed to "nonregular".

I don't know enough to make a good recommendation but perhaps something like this:
(I'll use Jameco as an example site)
Transistor General Purpose BJT NPN 60 Volt 10 Amp
http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_25857_-1

3

http://bildr.org/2012/03/rfp30n06le-arduino/

This link assumes that your motor only needs to turn in one direction. An N-Channel MOSFET is what you want.

If it needs forward and reverse, you'll need a motor controller. This one is somewhat common, cheap, and easy to program:

4

There is a 'Motors, Mechanics and Power' section of the forum dedicated to controlling high power devices with an Arduino and I think you will get more help there.