Electronic Load - Help Please

Discussion in 'General Electronics Chat' started by paulktreg, Mar 21, 2012.

  1. paulktreg

    Thread Starter Distinguished Member

    Jun 2, 2008
    612
    120
    Can anyone point me in the direction of a simple but reliable electronic load that can sink 0~20A on up to +12VDC. I have a design from Elecktor that looks promising if overly complicated. (I won't post it because it cost me money to obtain and it seems wrong to make it publicly available).

    Thanks in advance.

    Paul
     
  2. shortbus

    AAC Fanatic!

    Sep 30, 2009
    4,015
    1,531
  3. paulktreg

    Thread Starter Distinguished Member

    Jun 2, 2008
    612
    120
    Sorry I should have said it's something I want to build myself but thanks for the reply.
     
  4. K7GUH

    Member

    Jan 28, 2011
    191
    23
    I would recommend five or six twelve volt 50 watt incandescent lamps, in parallel. They would be moderately expensive but are readily available in the camping supply section of many retailers.
     
  5. k7elp60

    Senior Member

    Nov 4, 2008
    478
    69
    Here is a schematic of one I use, the transistor is mounted on a large heatsink. The transistor Q1 can use a 2n6284, or on occasions I have used n-channel mosfets. The size of the heat sink is important. The collector of the transistor is also connected to the+ of the DC source to be tested. I use this for testing current limit of power supplys discharging batteries. It is a constant current load.
     
Loading...