Abstract: A current sensor system for measuring an AC electrical current, includes: an electrical conductor portion for conducting the AC current and generating a first magnetic field; a U-shaped magnetic shielding partially surrounding said electrical conductor portion, and having a central shielding portion and two shielding leg portions; a metal plate or a metal layer arranged at a distance from the shielding legs portions for allowing eddy currents to flow and for generating a second magnetic field; a magnetic sensor device arranged between the conductor portion and the metal plate or metal layer, and between the shielding leg portions, configured for measuring a magnetic field component. The sensor system likewise includes a three-phase current sensor system.

Abstract: A method comprises receiving an input signal for processing in one or more neurons of a neural network, wherein the neural network has zero bias neurons and includes a plurality of resistive processing unit (RPU) weights and each neuron has an activation function. The method also includes applying an arbitrary amplification factor to activation function outputs of the one or more neurons in the neural network, wherein the arbitrary amplification factor is based on a dynamic range of components in the neural network and compensates for conductance drift in values of the RPU weights. The method also includes performing a calculation with the neural network using the amplified activation function outputs of the one or more neurons.