Applying a Fast Analytic Calculation Method in CM Domain for Touch Currents to a Two-Stage Charging Infrastructure

Keeping touch & leakage currents within the tough regulation limits is a very ambitious goal for non-isolated EV-chargers, affecting the entire system setup (topology, PWM, filter). This paper improves the scope of a timesaving analytical touch current calculation method by expanding the modeling from a single-stage to a two-stage power electronic architecture.