Measuring current is an important aspect of energy management. Whether it is within a power supply or external to it, measuring ac currents (unipolar or bipolar, sinusoidal or rectangular) with isolated current sense transformers looks easy but does require attention to a few important details. Why are there so many similar circuits and what is the difference? Where are the measurement errors? What precautions are needed to protect the analog to digital conversion? Using the new REDEXPERT current selector to find the right part. This session explains how the current transformer works and sorts through the most common circuits to help you decide which is correct for your application.
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