According to this project I saw many design use same principle by using MPPT to adjust PWM of buck converter.
I totally get MPPT algorithms except the DC to DC converter part.
Let's call solar panel the source.
From this link, this picture shows current at the source (input side):
As you see, input current is not continuous. From IV characteristic of solar panel, I think current should be constant to obtain correct data. So I think it shouldn’t work this way.
- Did I get something wrong?
- Are there any theories to explain how this works?
- If I was right, how to correct this design?