Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Maximum voltage and current values for building a DC motor

  1. Sep 10, 2015 #1
    Hello, I am building a large DC motor for a Go-kart.

    I have a question: How would I know how much voltage and current (the maximum values I can use) I need to make the DC motor work and spin?

    I'm guessing the armature size and the winded wire's length depends on how much voltage and current you introduce into the motor so I want to get the sizes and lengths according to the voltage and current I will use.

  2. jcsd
  3. Sep 10, 2015 #2


    User Avatar
    Homework Helper

    DC motors and/or DC motor build plans generally have specifications that include maximum power, maximum torque, voltage range, current range, rpm range, and a kv rating (unloaded 1000 rpms per volt). You may want to use the motors used on existing electric powered go-karts as a guide.
  4. Sep 10, 2015 #3
    Thank you for your reply! I will check the specifications of some motors that are similar to the one i'm making.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook