– how is DC current converted to AC current, for instance power from solar panels being converted to AC? I know how it can be done mechanically but that must be inefficient.

Question

– how is DC current converted to AC current, for instance power from solar panels being converted to AC? I know how it can be done mechanically but that must be inefficient.

In: Physics

Answer 1

Usually it will be done by switching powere on and off really fast. That will then go through a circuit that smooths the on off into a actual wave shape.

Same as if your moving your hand up and down in a bath tub. Vertical movement of your hand is smoothed out by the resistance of the water to create a horizontal wave.

The circuits use inductors and capacitors to create filters that resist the change of voltage causing the wave shape.

Edit:
I guess terms would be either stable multi vibrators or oscillator. Usually