PWM controlled Input Voltage/Current regulated Converter (for solar panel)
Solar panel output voltage and current can not be controlled or dictated. The output is determined by the amount of sunlight received and the characteristics of the connected load. The solar panel output is the voltage and current where the load line intersects the solar panel V vs I curve as shown below. The load is assumed to be a fixed resistor. The buck or boost converter will draw a certain current with a certain input voltage. Depending on the load connected to the converter, in may be able to adjust itself to track the maximum power point. However, it will be limited by the ability of the load to safely and usefully absorb the available power.