Power Supply Hookup

Discussion in 'General Electronics Chat' started by sailmike, Dec 30, 2015.

  1. sailmike

    Thread Starter Member

    Nov 11, 2013
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    3
    I had to rent some electronics equipment because I don't have the use of the campus equipment due to winter break. The DC power supply I was provided is much fancier than what I need and they didn't have a simpler one so I'm stuck with this one. It's a Hewlett Packard 6621A System Power Supply. I read the instructions, but it wasn't clear on how to hook up the wires for what I want. I just need a positive voltage from 0 to 5 volts and a ground. I'm not sure what's meant by "commoning". I've attached a photo of one of the back panel connections.

    Thanks,
    Mike

    Back Panel of HP 6621A Power Supply.jpg
     
  2. dl324

    Distinguished Member

    Mar 30, 2015
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    V+ and V- are positive and ground, respectively. Post some context from the manual for "commoning".
     
  3. paulktreg

    Distinguished Member

    Jun 2, 2008
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    I would have gone for +0V for ground and +V for the positive supply connection?
     
  4. dl324

    Distinguished Member

    Mar 30, 2015
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    Except that they don't have a sense terminal and -V does. From the manual:
    upload_2015-12-30_17-27-47.png
     
  5. dl324

    Distinguished Member

    Mar 30, 2015
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    That was referring to stacking supplies to get a negative voltage.
     
  6. sailmike

    Thread Starter Member

    Nov 11, 2013
    143
    3
    Thanks everyone. I got it.
     
  7. ErnieM

    AAC Fanatic!

    Apr 24, 2011
    7,386
    1,605
    You get your output from the +V and -V terminals. The +S and -S are for remote sensing the output when it is critical the voltage at a remote load is correct. If your application is not very critical leave the jumpers where they are and forget them.

    +OV and -OV are for over voltage sense and suppression by shorting the output. You can probably ignore that feature too.


    Therefor, just connect to the + and - V terminals and you are good to go.

    BTW I found the full manual on yahoo first page when searching for the HP6621A numBer.
     
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