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How to get different OUTPUT voltages in ARM micro?

Discussion in 'Microcontrollers, Programming and IoT' started by Bruce McC, Nov 30, 2016.

  1. Bruce McC

    Bruce McC

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    Nov 30, 2016
    Hey buddies,what's up?!

    I'm using an ARM cortex M0 micro called FRDM-KL25Z (what a funky name! I knew that! :) ) . I'd like to run a simple motor at different speeds. How can I get different OUTPUT voltages to operate this armature ?

    Do I need any extra component which generates altering DC voltages? if so what is this device called?

    tnx guys
     
  2. Harald Kapp

    Harald Kapp Moderator Moderator

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    Nov 17, 2011
  3. Bruce McC

    Bruce McC

    2
    0
    Nov 30, 2016
    It's a small DC motor(like an Armature). It is supposed to get connected to an ARM micro-controller and automatically change its speed. Actually I'd like to know how I can get altering OUTPUT voltages in this microcontroller. Should I use any special device which generates different voltages or does the ARM micorcontroller in the question "FRDM-KL25Z " have the ability to generate different output voltage?
     
  4. Bluejets

    Bluejets

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    698
    Oct 5, 2014
    You already have your answer from #2.
     
  5. BobK

    BobK

    7,599
    1,641
    Jan 5, 2010
    You do not control a motor with varying voltage and a micro cannot output enough power to run a motor directly.

    Look up "PWM". Look up "motor driver".

    Bob
     
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