Regulator circuit for input profiling for power amplifiers

[sfink06]

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.

 

[berkeman]

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

.

 

[sfink06]

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.

 

[berkeman]

Can you just use a programmable 12V power supply, maybe controlled over USB?

http://www.google.com/search?source...GGLL_enUS301US302&q=programmable+power+supply

.

 

[sfink06]

Can you just use a programmable 12V power supply, maybe controlled over USB?

http://www.google.com/search?source...GGLL_enUS301US302&q=programmable+power+supply

.

yes I think that will be good, thanks for the help!

 

[sfink06]

Can you just use a programmable 12V power supply, maybe controlled over USB?

http://www.google.com/search?source...GGLL_enUS301US302&q=programmable+power+supply

.

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?

 

[berkeman]

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.