ac current measure
Thanks,
But the current transformers i have come across are quite bulky and expensive (about $12 - 34).
I have also checked hall effect IC (Allergo 712) which is compact and cost effective (about $3), but it seems to be more suitable for current of 5A and above. As such i am considering ot amplify the output to increase it's sensitivity for small currents, but i dont know if the 20mA will be below the resolution of the IC. Also the nominal voltage seems to be 185V AC
Hence i am now considering to use high side current sensing (using resistor and difference amplifyer IC), but most of the IC i've come across seems to suited for up to 80V DC.
Hence i need a suitable and cost effective IC for the 240V AC
Thanks