Sunday 8 April 2018

High Voltage Monitoring/ Measuring using Microcontroller's ADC input


Voltage divider resistor network is used to step monitored voltage down to the range as necessary  for A/D conversion. Passive low-pass filter is used for noise rejection.

9 comments:

  1. What is the purpose of C1 & C2 in this circuit

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  2. C1 and C2 are part of the 2nd order low-pass filter circuit with center frequency of 160kHz.

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  5. Thanks for Sharing.What do you think zener diode before mcu adc input?is it required?

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