Infineon EVAL-PS-DP-MAIN-M5 Manual page 11

p u b l i c
EVAL-PS-DP-MAIN-M5
Evaluation platform for 600 – 1200 V SiC MOSFETs and IGBTs in TO-247
4pin/3pin packages
Table of contents
Figure 6 Auxiliary-power and drive-voltage connectors
Additionally, X106 and X108, shown in Figure 6, are for setting the correct drive voltage on the daughter cards,
ranging from +20 V to - 5 V. +ADJ and -ADJ are set via the blue potentiometers R102, R105, R107, and R108. The
PWM comes either from the coaxial connectors X103 and X104 or from the microcontroller via X101.
Getting started
The evaluation board is adaptable to deal with various measuring setups. This section provides instructions on
setting up and using the board.
Modes of operation
The evaluation board implements a half-bridge circuit with independent driver stages for the high-side and
low-side semiconductor devices, as mentioned in Section 2.2. The board can be used in various operational
modes thanks to the universal nature of this architecture. The potential measurement configurations and
methods are described in the Table 4.
Before measuring, ensure that all the board settings are correct. Make sure that no physical short
circuits or floating gates are present. Increase the input voltage slowly and check if the circuit
behaves as expected.
The configurations of the primary board are summarized in Table 3Error! Reference source not found.. S
witching losses of the devices can be estimated by measuring the current and voltage waveforms on an
oscilloscope. Configuration 1 can be used to analyze the semiconductor device and Configuration 2 to analyze
the diode. For maximum accuracy, using the low-side device, S2, is recommended for oscilloscope
User guide 11 Revision 1.0
2025-01-10