•
Power section based on SiC MOSFETs:
–
High frequency operation (100 kHz)
–
High efficiency: >98%
–
Passive element weight and size reduction
•
Control section based on
–
P2P compatible with other STDES 3-phase power converters
–
Four integrated high-performance op-amps
–
Control and monitoring interfaces: SWD, UART, I²C, DACs
–
64-pin digital power connector
–
Overcurrent and overvoltage protection
1.4
Main characteristics
Table 1.
Main characteristics
Description
Symbol
Min.
Typ.
Max.
Unit
Comments
Three-phase input voltage
V
AC
208
400
V
ACLL
AC line frequency
Hz
47
63
Hz
Maximum output power
P
OUTmax
15
7
kW
V
AC
= 230 V
RMS
I
AC
= 21 V
RMS
V
AC
= 110 V
RMS
I
AC
= 21 V
RMS
Output voltage
V
DC
800
V
Power factor
PF
>0.99
-
From 20% of load
Total harmonic distortion
THDi
<5
%
From 20% of load
Switching frequency
f
sw
70
kHz
Table 2.
Protection characteristics
Description
Symbol
Min.
Typ.
Max.
Unit
HVDC overvoltage protection
V
DCovp
900
V
HVCAP overvoltage protection
V
CAPovp
500
V
AC overcurrent protection
I
ACovp
30
A
1.5
Reference design description
1.5.1
Power board
The figure below shows the power board of the
UM2979
Main characteristics
UM2979
-
Rev 1
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