Connect with us

Variable power supply unit

Discussion in 'Power Electronics' started by Simon Baker, Nov 28, 2016.

Scroll to continue with content
  1. Simon Baker

    Simon Baker

    Nov 28, 2016
    Hi am tring to make a pyrography pen, and I've been looking online for how to power it, there's loads of different ideas, the main ideas are running it from a computer psu but converting it to a variable psu, but there's a few ways on how so I've read about,

    1 is to use a PWM DC motor speed controller

    2 is to use a Voltage Regulator Voltmeter Buck Converter LM2596 DC 5/12V

    3 is to change the 2.7k resistor in psu for a potentiometer.

    I was just wondering which would be the safest and easiest way to convert it.
  2. davenn

    davenn Moderator

    Sep 5, 2009
    hi Simon
    welcome to the forums :)

    what current @12V does this thingie of yours need ?

    probably not

    probably the best .... or depending on current, a LM317 or a LM338

    who knows what resistor you are referring to ??
  3. Simon Baker

    Simon Baker

    Nov 28, 2016
    Thank you for help, I am tring to get around 5v-9v. it's for burning designs into wood.
    davenn likes this.
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.
Electronics Point Logo
Continue to site
Quote of the day