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Decrease voltage from 53V to 48V

Discussion in 'General Electronics Discussion' started by mubidx, Mar 5, 2009.

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  1. mubidx

    mubidx

    1
    0
    Mar 5, 2009
    hello

    I have a equipment which works on 46 to 48 volts DC the problem is the power supply i have it's output is 53 volts DC I am wondering is there anyway to decrease the volts using somehing between the supply and equipment ???
     
  2. pendragon

    pendragon

    5
    0
    Aug 28, 2009
    mubidix

    what is the current requirement of the equipment you intend to run ??
     
  3. amdNRA

    amdNRA

    50
    0
    Sep 3, 2009
    You can use a pass power transistor (2N3055) with a zener diode and biasing resistor in the base configuration OR just a zener diode in series by itself. Bear in mind that the 'zener diode only solution' will require a higher current zener. The zener will have to be in the 5 to 7 volt range aproximately (53V-46V=7V). Like Pendragon says, figure out the current and take it from there.
    Later, Gil. :)
     
  4. jamygdala

    jamygdala

    6
    0
    Jul 13, 2009
    For high currents I have used several forward biased diodes to create small-ish drops. nb Vf will change for different currents - check data sheet graphs

    Diodes connected in series - to be clear ;-)
     
    Last edited by a moderator: Dec 17, 2009
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