User guide
12 of 41
v1.0
2021-03-05
5 kW two-channel interleaved CCM PFC EVAL board
IKW40N65WR5, IDW60C65D1 and 1ED44175 in high frequency PFC application
System design
Figure 6
EMI filter, soft start control, and rectifiers of EVAL-PFC5KIKWWR5SYS
In Figure 7, two-channel boost converters connect in parallel with 180° out-of-phase control. Each channel has a
WR5 IGBT IKW40N65WR5 as main switch, a rapid1 fast-recovery diode IDW60C65D1 with common cathode as
boost diodes for both channels, in paratical applications, customers can also select two seprated silicon fast-
recovery diodes or two SiC diodes to replace this common cathode diode, and put them as D21 and D22. A current
transformer monitors the IGBT current for normal operation and cycle-by-cycle current limiting. Each gate driver