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royzizzle
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vk6kro said:Comparators give a high output if one input is higher than the other, and a low output if they are the other way around.
They don't pass one of the inputs through to the output. You either get 5 volts or nothing (if "high" is 5 volts)
There are analog switches (like the 4066) which allow analog signals to pass through if a control input is high but stop signals if the control input is low.
Realistically, you should do this with a micro like a Picaxe chip or an Arduino.
You could read the inputs with the A to D converters of the micro and output a 5 volt control signal on an output pin which then switches an analog switch to let that signal through to the output.
To compare 8 analog signals, you can use a microcontroller or a computer program to read in the signals and store them in memory. Then, you can use algorithms or mathematical equations to analyze the signals and determine which one is the largest.
The best way to output the largest analog signal depends on your specific application. Some options include using a digital-to-analog converter to convert the signal to a voltage level, using a display or LED to visually indicate the signal, or sending the signal to another device for further processing.
Yes, you can compare analog signals with different voltage ranges as long as you scale the signals to a common range before comparing them. This can be done using amplifiers or voltage dividers to adjust the voltage levels of the signals.
Yes, it is possible to compare more than 8 analog signals. However, the complexity and accuracy of the comparison may increase as the number of signals increases. It is important to use a microcontroller or computer program with enough memory and processing power to handle the additional signals.
To ensure accurate and precise comparison of analog signals, it is important to use high-quality components and proper calibration techniques. Additionally, using noise reduction techniques and stable power supplies can help improve the accuracy of the comparison.