Approach to the study

AN2842

12/22

Doc ID 15110 Rev 1

Figure 14. Current spike during the turn-on phase when a fast diode is used

In

Figure 13, an ultra fast diode is used, while in Figure 14 a fast diode is used. In Figure 13

we can see that a large current spike is present during the turn-on phase, compared with

Figure 14. It is important to underline that the impact due to the boost diode is present only

during the turn-on phase.

Figure 15. Current spike during the turn-on phase when an ultra fast diode is used