Hello, I need help!
I want to monitor my shunt ex:0-50mV = 0-50Amp
I know I need to boost this mV to drive the ADC at 0-5Volts. I has build circuit with an OP Amp LM358 with 100 gain.
All work fine so I have difficulties to get the 0-50mV at input. With a voltage divider, my lower voltage is ±25mV and when I turn the pot, the voltage go up rapidly.
Anybody have solutions to monitor low voltage with an ADC, my PIC is an 16F876.
Thank's ans let me know at, mour@sympatico.ca
Eric
I want to monitor my shunt ex:0-50mV = 0-50Amp
I know I need to boost this mV to drive the ADC at 0-5Volts. I has build circuit with an OP Amp LM358 with 100 gain.
All work fine so I have difficulties to get the 0-50mV at input. With a voltage divider, my lower voltage is ±25mV and when I turn the pot, the voltage go up rapidly.
Anybody have solutions to monitor low voltage with an ADC, my PIC is an 16F876.
Thank's ans let me know at, mour@sympatico.ca
Eric