Regulator circuit for input profiling for power amplifiers

  • Thread starter sfink06
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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.
 

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  • #2
berkeman
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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.
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

.
 
  • #3
4
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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

.
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.
 
  • #7
berkeman
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58,013
8,071
after talking about the project a little more, this won't work. The regulator is going to be surface mounted, programmable, push up to 1.5 Amps, and provide 0-12 volts. Are there any devices out there that fit this description?
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.
 

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