Broadcom ACPL-337J Manuale di riferimento - Pagina 7
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ACPL-337J Reference Manual
Fuji Electric PIM Module EP2 Package Evaluation Board
Figure 5: Evaluation Board Main Circuit Diagram
T1, T2, and T3 are the three-phase AC input terminals, R, S, and T. They are connected to the diode bridge circuit, which
will rectify the AC input to DC+/DC- bus voltage. T8, T9, and T10 are the three-phase AC output terminals U, V, and W that
can be connected to a three-phase motor. The DC+, DC-, and brake terminals can be accessed from terminals T4/T6, T7,
and T5, respectively. The thermistor of the PIM can be accessed from NTC connector CN9. The PWM input signals from the
controller board can be connected to the inverter using the 30-pin XG-series flat cable PCB connector CN8. The fault signals
from the ACPL-337J gate drive optocouplers are fed back to the controller using the same connector CN8.
Six ACPL-337J gate drive optocouplers, IC3 to IC8 are used to drive the six IGBTs of the three-phase inverter, and IC9 is
used to drive the braking IGBT. The evaluation board has an isolated DC/DC power supply MS57140-07F, IC1 to provide
power for the gate drive optocouplers. The DC/DC power supply converts DC +20V from connector CN1 to +15V/–6V gate
drive voltage.
The reference design will describe the gate drive and isolated power supply designs and testing. Other details, such as the
full schematic, bill of material, and PCB layouts, can be found in Fuji Electric website:
http://www.fujielectric.com/products/semiconductor/model/igbt/evaluation/box/doc/pdf/MT6M13583a_E.pdf
Broadcom
ACPL-337J-EP2-RM100
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