Intro: DC Motor Speed Controller
today I’m gonna show you how to make a really simple DC motor speed controller.
Step 1: Watch the Video
the video is in my Youtube channel Chris' Project
Step 2: The Schematic
Step 3: Buy All of the Components
The components for this project are:
1pc IRF3205 mosfet
1pc 100k ohm potentiometer
1pc potentiometer knob
1pc old credit card
1pc DC motor
1pc 9V battery clip and a 9V battery.
Step 4: Put the Heatsink on the Mosfet
Put the heat sink on the mosfet with the skrew
Step 5: Glue the Components to the Credit Card
Glue the mosfet and the potentiometer to the credit card
Step 6: Connect the Battery Clip
Connect the positive wire of the 9V battery clip to the drain pin of the mosfet and the negative wire to the dc motor.
Step 7: Connect the Potentiometer
Connect the left pin of the potentiometer to the drain pin of the mosfet, the middle pin to the gate pin of the mosfet, and the right pin to the negative wire of the 9V battery clip.
Step 8: The Last Connection
Finally connect the source pin of the mosfet to the other pin of the dc motor. Now just plug in the 9V battery and we are done.
Step 9: Testing
If you connect everything correctly than if you turn the potentiometer anticlockwise the motor will spin faster and if I turn the potentiometer anti clockwise the motor will slow down.