Suppose I have a 75w solar panel. At full sun shine it is giving 17 volts 4.41 Amperes 17 × 4.41 = 75 watt. My MPPT controller converts it to 12 volts and 6.25 Amperes 12 × 6.25 = 75 watt. I know that MPPT is droping 17v to 12 by setting the switching PWM duty cycle.
The thing I can't understand is how the MPPT is compensating the voltage in current? How it is making 6.25 Amperes when there is only 4.41 Amperes available? It will be very helpful if any one can explain it using using the buck converter circuit.
I searched whole Internet but I could not find any answer to this question. Or maybe there are good answers but I am unable to understand them.