Plug packs

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Charger input waveforms, 0.2A/square, screen edges and centre are the input voltage zero crossings

Chargerwaveform1.jpg

Green wallwart AD5953 ALF, XO1.5 running 93% charge 240V input

Chargerwaveform2.jpg

Green wallwart Delta ADP17FBA, XO1.5 running 93% charge 240V input

Chargerwaveform3.jpg

White wallwart Bestek NA0241WAA, XO1.5 running 93% charge 240V input


The load is well balanced with respect to leading/lagging power factor, showing only a slight leading or capacitive power factor. The waveform is very rich in harmonics. This could lead to overheating in transformers and generators due to eddy currents.

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