24vdc voltage clamp circuit

Discussion in 'General Electronics Chat' started by TexasLugnut, Feb 11, 2010.

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  1. TexasLugnut

    Thread Starter New Member

    Feb 11, 2010
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    Need to find someone that can design an inexpensive voltage clamp - we have vehicle that runs 22-32 volts DC but need to power a specific piece of equipment with 24 volts @8amps.

    Any help would be appreciated
     
  2. MikeML

    AAC Fanatic!

    Oct 2, 2009
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    What is the equipment? How long is the main vehicle battery below 24V?
     
  3. russ_hensel

    Well-Known Member

    Jan 11, 2009
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    You probably need a buck boost voltage regulator. A clamp circuit is really something different.
     
  4. TexasLugnut

    Thread Starter New Member

    Feb 11, 2010
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    The equipment is on a large bus type vehicle the charging for the new style of batteries ia optimal at 29-30volts - the equipment that I need to power has a voltage range of 18-28, this equipment will go into automatic shutdown at 29.1 - the low end is not a large concern but the top voltage is
     
  5. ifixit

    Distinguished Member

    Nov 20, 2008
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    Can you put 3 high power (15A) silicon rectifier diodes in series with the supply to the 24V, 8A equipement? The diodes would have to handle ~10W each depending on the diodes Vf. This would substract 3 forward voltage (Vf) drops from the 22V to 30V battery supply.

    This solution would cheap and easy, but power wasteful.

    Good Luck
     
    Last edited by a moderator: Jul 19, 2014
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