Burden Resistor calculation

Burden Resistor Formulae

R = (Vcc * Nturns) / (2√2 * Irms)

R: Burden resistor value in Ohm
Vcc: ADC max voltage range (usually 3.3V)
Nturns: Number of CT sensor turns
Irms: Max current to be read in rms

Current Coefficient Formulae

This will compute ICAL.

ICAL = Nturns / R

ICAL: Current Coefficient R: Burden resistor value in Ohm
Nturns: Number of CT sensor turns