Hi,
I want to repeat the measurements you performed at the following application note: www.ti.com/.../slva236a.pdf
I want to do it with different instruments and compare the results.
I would be interested in knowing how did you measure the voltage and currents at the input, with which instruments, and how did you calculate power both with and without the additional input capacitor. For example, did you measure average values and then multiplied them? Or did you use rms values?
Can you also tell me which additional capacitor did you use?
Regards,
Manel