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I want to test reliability of power supply for microcontroller ?

manojroy123

I want to test reliability of power supply noise for a microcontroller. I would like to know, How to do it ?. how will the microcontroller malfunction due to noise in power supply. What are the symptoms to notice. Is there a test that can allow me to detect such faults before even starting the microcontroller.

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    Hi Manoj,

    Did you confirm that your board is malfunctioning due to power supply noise??? If so how did you confirm it? What kind of power supply are you using ?
    Is it Linear or DCDC converters like buck converter or an SMPS ?
    What is the power requirements for your board? Is you power supply rated to handle that current requirement?
    Why I am asking all these questions is because what you are experiencing is probably due to something other that the noise as well.

    Noise on a DC power line is voltage variations ( You circuit works at 3.3v but the power line has 5 or 6 Volts peaks. You can easily identify them using an oscilloscope ).
    The real challenge is to identify what is causing it.