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5 kW two-channel interleaved CCM PFC EVAL board
IKW40N65WR5, IDW60C65D1 and 1ED44175 in high frequency PFC application
System performance
Figure 27
Switching waveforms of IGBT at V
input voltage)
Figure 28
Switching waveforms of IGBT at V
of input voltage)
4.5
Output ripple voltage
Due to the limitation of the board size and cost considerations, there are only four output filter capacitors with a
total of 2720 uF placed at the output stage. For the next three waveforms with full load at different input voltages,
the permissible low-frequency ripple of the output voltage is smaller than 20 V, which meets design specifications
as well.
User guide
V
= Green, V
=Yellow, I
CE
GE
=200 V
IN
V
= Green, V
=Yellow, I
CE
GE
=200 V
IN
31 of 41
=Red,V
=Blue
L1
OUT
at full load (continue current at high point of
AC
=Red,V
=Blue
L1
OUT
at full load (discontinue current at low point
AC
v1.0
2021-03-05
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