Fe(II)man
Member level 1
Hey guys
Having a huge problem.
I am required to build a power meter. This means I have to sense both current and voltage.
For current I have managed to sort my circuits out, however
for voltage sensing, I am using LM358N amplifier, configured as an Instrumentation amplifier to work with the difference in voltage ie. the potential difference across a component. I will then send this differential voltage to an ADC.
I cannot seem to get the instrumentation amp working. it keeps giving me the wrong values.
Help please
Having a huge problem.
I am required to build a power meter. This means I have to sense both current and voltage.
For current I have managed to sort my circuits out, however
for voltage sensing, I am using LM358N amplifier, configured as an Instrumentation amplifier to work with the difference in voltage ie. the potential difference across a component. I will then send this differential voltage to an ADC.
I cannot seem to get the instrumentation amp working. it keeps giving me the wrong values.
Help please