Need help on how to generate +12 and -6V from a single +24V power supply

Discussion in 'The Projects Forum' started by jamaral, Dec 2, 2013.

  1. jamaral

    Thread Starter New Member

    Nov 11, 2013
    2
    0
    Hi,

    I have to supply power for an incremental encoder that requires +12 V ( 350 mA) and -6 V. I would like to have just one single +24 V power supply. I am planning to use Dc-DC convertes and I was wondering if anyone can recommend one and I also would like to know if they generate a lot of noise or not.

    Thanks,

    Jorge
     
  2. MikeML

    AAC Fanatic!

    Oct 2, 2009
    5,450
    1,066
    I try to avoid switchers around analog circuitry. The encoder outputs are digital, so it likely wont care. Getting +12V at 350mA from +24V is going to make >4W of heat if using a linear regulator, so you will likely need a buck converter. This app note shows how to make both positive and negative converters.
     
Loading...