A Stress- and Temperature-Compensated TMR Current Sensor With ±0.13% Sensitivity Variation https://sscs.ieee.org/wp-content/themes/movedo/images/empty/thumbnail.jpg 150 150 https://secure.gravatar.com/avatar/8fcdccb598784519a6037b6f80b02dee03caa773fc8d223c13bfce179d70f915?s=96&d=mm&r=g
Abstract:
This article presents a high-precision tunnel magnetoresistance (TMR)-based non-contact current sensor with enhanced immunity to sensitivity drift. A background sensitivity stabilization loop (SSL) continuously regulates the TMR bias voltage to compensate intrinsic sensitivity variations. Through this closed-loop regulation, sensitivity drift of the TMR sensor induced by temperature, mechanical stress, …