1. ollieking60@hotmail.com

    Thread Starter New Member

    Feb 17, 2010
    11
    0
    Hi
    I am after some help with a simple PWM controller with a voltage regulator built in. It is to control a fuel pump. It has a 15V supply, however I would like to be able to control the supply voltage between 5V and 15V with an analog 0-10VDC input. This also really needs to have a controllable frequency range of 10Hz to 10KHz, again from an input to the board. Finally the MSR will need to have a range of 0 - 100%.
    I have made a PWM controller on its own but the square wave is rounded.
    I am fairly new to electronics, so any help will be greatly appreciated.
    Thank you
    Ollie
     
    Last edited: May 20, 2010
  2. bertus

    Administrator

    Apr 5, 2008
    15,647
    2,346
    Hello,

    Can you post a schematic of what you have upto now?
    With that in hand we can have a look how to modify it.

    Bertus
     
  3. retched

    AAC Fanatic!

    Dec 5, 2009
    5,201
    312
    how 'round' ?

    Can you post a scope shot?
     
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