I have a theoretical question about harmonics and DC.
Given I have a circuit which has a power supply providing an AC input(230Vrms @ 50Hz), this then goes into a load which, takes this supply rectifies it to DC and performs a DC to DC conversion for a DC load.
If the system (load)imposes some DC onto the AC supply it will be seen as a DC offset for instance 1V DC offset. If I were to measure the DC voltage over the Line and neutral going into my load.
Could this hypothetical DC offset be caused by harmonics in the load say the 2nd,3rd,4th harmonic but, appearing as a DC offset.