Variable DC Bench Power Supply

Discussion in 'General Electronics Chat' started by jsthomps, Jun 9, 2011.

  1. jsthomps

    Thread Starter Member

    Mar 30, 2010
    15
    0
    Just wondering if anyone has any recommendations for a supply in the 0-30 volt, 0-5 amp range?
    Thanks,
    Scott
     
  2. Jotto

    Member

    Apr 1, 2011
    159
    17
    Speco PSV-5 30vdc 5amp

    I have the 14602 PS 50vdc 3amp and 1850D 18vdc 5 amp that I use.
     
  3. someonesdad

    Senior Member

    Jul 7, 2009
    1,585
    141
    I suggest you try to specify your needs a bit better. First order of business is to state what your price limit is, as that weeds out a lot of stuff.

    A few years ago I got a B&K Precision 9130 power supply and it's a good power supply for an experimenter's bench. It has two 90 W, 30 V supplies that can be put in parallel to give you 31 V @ 6.2 A (and a third 6 V @ 3 A supply). The first supply, which I use for most things, has the curious nice feature of nearly always being within 1 or 2 mV of what I type in -- and the settings resolve to the nearest mV and mA.

    To provide for your specs, I go into the menus and specify that channels 1 and 2 are to be connected in parallel. Then the channel 1 settings control both supplies (so there's no mucking about trying to set two supplies to the same settings). In fact, you can put all three channels in parallel for 9.3 A out at 6 volts max (the 6 volts is because that's the voltage limit of the third supply).

    This is a pretty good lab supply and is a bit of a sleeper, as many folks don't know about it. A friend at B&K told me it's one of their most popular supplies.
     
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