Design of Current Measurement Circuit Using PCB Rogowski Coils for Resonant Converters

Abstract

Measuring current in a resonant tank of the resonant converters requires fast response and low interference for resonant circuits. For this purpose, a current measurement circuit with PCB based Rogowski coil was designed. The individual circuit parts and characteristics are described. The circuit test results on an LLC resonant converter and double pulse test are provided as well.

Description

Subject(s)

Rogowski, PCB coil, design circuit, current measurement, coil simulation, frequency analysis, LLC converter, operation amplifier, integrator, passive filter

Citation