What would happen if you connect a solar panel with the following characteristics:
Open Voltage: 7.2V
To a buck-boost converter that convert an input voltage in the range 1V-6V to a voltage of 5V? Who would "win" the fight to set the voltage? The buck-boost converter can work with any input voltage and the solar panel can work at different output voltage. I can't figure a way to calculate the input impedance of the buck-boost converter.
Bellow is the representative circuit diagram for a solar panel on the left and the buck-boost converter on the right with the converter switch represented with the letter S.