HI ,I have a question about 3 level convert.I have read about BQ25910 spec.
Before the 3 level convert start to work ,if D<0.5,the Voltage on Cfly is 0; Who charge it to VIN/2?
I know during the first stage,the VIN charge the Cfly to VIN/2.
Here is the question,how did the charge work？
why charge to VIN/2?
How to control charge?
who control the charge?
Why charge stop when the Cfly charged to VIN/2? Why Vsw is VIN/2?