i am making an Inverter VFD 3phase project and i stucked on some sensors.
-For phase current (A,B,C) i will use LTS-6NP with fast responce,5V supply and also offers isolation.
- I want to monitor VDC for overvoltage or undervoltage. (here is my questions)
I am thinking of using some isolated amplifier (like ACPL-790x) but most IC's needs an extra amplifier.
Do i realy need to add extra amplifier or its no need since i measure an DC voltage ;
Can i let Vout- unused an just use Vout+ to my Arduino's A/D ?