Viewer Questions: Transformers with a Scope to look at Spiky Currents,

In previous videos we used shunt resistors and voltages dividers to look at harmonics in current and voltage waveforms. For 220V, 230V, and 240V applications, this approach may not be suitable if there are two live wires or a live and neutral without a reliably polarized power plug. In this video we look at how to examine currents with strong harmonic content from electronic power supplies using current transformers approaches. Spoiler: its amazing how well transformers do even with higher harmonic or frequency content, even plain old filament transformers.


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