L
+ + + +
1 2 3
C
MOTOR
− − INPUT CONVERTER (DIODE BRIDGE) + − DC BUS (FILTER) + −
−
−
OUTPUT INVERTER (IGBTs)
Figure 3 IGBT power transistors can convert the dc voltage back into ac using pulse-width modulation.
P
P1 Q1 3 B QB Q2 U Q4 Q3 V Q6 Q5 W
L1 L2 L3
T1
T2
EDN120419DF2 Fig 3.eps
N NEUTRAL BRAKE EU
DIANE
EV NEUTRAL CONNECTIONS EW
Figure 4 The Infineon FP30R06W1E3 includes rectifier diodes, an NTC thermistor, and IGBTs.
EDN120419DF2 Fig 4.eps
DIANE
Figure 5 You can easily assemble the Infineon Easy PIM module as a plug-in module on the back of the IGBT-gate-driver card.
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Table of Contents for the Digital Edition of EDNE November 2012