grizedale
Advanced Member level 3
Hello,
The Boundary Condution Mode Boost PFC is good because you avoid harsh reverse recovery problem in the boost diode.
...but SiC Schottky diodes of 500V rating are cheap now.
So why not always do Continuous mode boost PFC?
...After all, with CCM Boost PFC the inductor is cheaper as it doesnt need an extra winidng to indicate when the inductor has discharged.
The Boundary Condution Mode Boost PFC is good because you avoid harsh reverse recovery problem in the boost diode.
...but SiC Schottky diodes of 500V rating are cheap now.
So why not always do Continuous mode boost PFC?
...After all, with CCM Boost PFC the inductor is cheaper as it doesnt need an extra winidng to indicate when the inductor has discharged.