Regulator circuit for input profiling for power amplifiers

In summary, the conversation is about 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. Various suggestions are given, including using a programmable power supply controlled over USB, but it is later determined that this will not work due to surface mounting and current requirements. A suggestion is made to use a DAC followed by a power amplifier to meet the current requirement.
  • #1
sfink06
4
0
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
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.

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
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

.

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.
 
  • #6
  • #7
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?

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.
 

What is a regulator circuit for input profiling for power amplifiers?

A regulator circuit for input profiling for power amplifiers is a type of electronic circuit that is designed to regulate the input voltage and current of a power amplifier. It ensures that the amplifier receives a stable and consistent power supply, which is crucial for producing high-quality audio signals.

Why is a regulator circuit necessary for power amplifiers?

A regulator circuit is necessary for power amplifiers because it helps to maintain a stable power supply, which is essential for the proper functioning of the amplifier. Without a regulator circuit, the amplifier may receive an unstable power supply, leading to distortion and other problems in the output audio signal.

How does a regulator circuit work for input profiling?

A regulator circuit works by using components such as resistors, capacitors, and transistors to regulate the input voltage and current of a power amplifier. These components work together to provide a steady and precise voltage and current to the amplifier, ensuring that it operates within its specified limits.

What are the benefits of using a regulator circuit for input profiling?

Using a regulator circuit for input profiling offers several benefits, including improved audio quality, increased efficiency, and protection for the power amplifier. It also allows for better control over the input voltage and current, ensuring that the amplifier operates within its safe limits and has a longer lifespan.

Are there different types of regulator circuits for input profiling?

Yes, there are various types of regulator circuits for input profiling, such as linear regulators, switching regulators, and shunt regulators. Each type has its own advantages and disadvantages, and the choice of which one to use depends on the specific requirements of the power amplifier and the application it is used for.

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