Design guideline for PCB integrated, high bandwidth, current slope sensing based on a planar Rogowski coil

Abstract

This paper shows the design process of a planar Rogowski coil integrated in the Printed-Circuit-Board (PCB) for direct current slope measurement. Focus lies on the analytic estimation of the coil parameters with respect to specific limitations and the analog signal processing for a simplified design process. All analytic derivations are verified by measurements.

Hybrid torque sensing concept for high frequency and dynamic torque ripple measurements for brushless dc motors

“…The current control was performed on the real time processing system described in [9]. The power converter and the measuring equipment used are described in [10]. All measured variables were captured using a 16-bit AD converter with a sample rate of 5 MSPS.…”