The discussion revolves around the design of a programmable regulator circuit capable of producing 0-12 volts for a power amplifier. The focus includes the requirements for linearity, DC input, and control voltage interfacing with a PC for input profiling.
Participants express differing views on the suitability of a programmable power supply for the specified application. While some suggest it could work, others indicate that it would not meet the project's requirements, leading to unresolved questions about the best approach.
Participants have not reached a consensus on the best solution for the programmable regulator circuit, and there are varying opinions on the adequacy of using a programmable power supply versus a DAC with a power amplifier.
sfink06 said: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 said: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
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berkeman said: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
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berkeman said: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
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sfink06 said: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?