Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Regulator circuit for input profiling for power amplifiers

  1. Jun 3, 2009 #1
    Hi all, I am working on finding a programmable regulator circuit that can produce 0-12 volts for a power amplifier. It needs to be linear, with a DC input and control voltage so that a PC can be used to generate an input profile.
     
  2. jcsd
  3. Jun 3, 2009 #2

    berkeman

    User Avatar

    Staff: Mentor

    Welcome to the PF. What are the current requirements of this programmable voltage source?

    http://sine.ni.com/np/app/main/p/ap/ictrl/lang/en/pg/1/sn/n17:ictrl

    You can control a programmable power supply via USB or a serial port -- would that work? Or depending on your power requirements, you can use a DAC card or USB DAC widget, and do a current amplifier stage externally....

    http://sine.ni.com/nips/cds/view/p/lang/en/nid/206679

    .
     
  4. Jun 3, 2009 #3
    the amplifier that I am driving has an input current of .5 Amps at no load and 1.5 Amps for full load. I'm using 2 EMCO F series, the F02 and F03.
     
  5. Jun 3, 2009 #4

    berkeman

    User Avatar

    Staff: Mentor

  6. Jun 3, 2009 #5
  7. Jun 5, 2009 #6
  8. Jun 5, 2009 #7

    berkeman

    User Avatar

    Staff: Mentor

    The 0-12V part is straightforward with a DAC. To meet the current requirement, you will need to follow the DAC with a power amp of some kind.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Regulator circuit for input profiling for power amplifiers
Loading...