Broadcom ACPL-352J, Справочное руководство

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Broadcom ACPL-352J-EB1200-RM100
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ACPL-352J Reference Manual Infineon EconoPIM™ 3 IGBT Module EB1200-352J Evaluation Board
Chapter 4: Circuit Description
This chapter provides an in-depth insight of the features of the EB1200-352J gate driver evaluation board.
4.1 Auxiliary Power Management
Figure 4 shows the auxiliary power management block diagram of the EB1200-352J, and Figure 5 shows the EB1200-352J
power supply circuitry. The evaluation board is supplied from an ex24V source. The main 24V/5V power supply,
based on LM2674 DC-DC switching regulator, is shown in
Figure 5 a. The +5V output of this power supply is used to supply
the ACPL-352J gate drivers and the ACPL-C87A voltage sensor low-voltage side. An isolated 5V/5V voltage regulator,
R1SX-0505-R, provides an isolated 5V for the ACPL-C87A high-voltage side, as shown in
Figure 5 b. The EB1200-352J has
six isolated power supplies 24V/+15V/–15V, which provide sep15V and –15V for each gate driver high-voltage side.
This circuitry is shown in
Figure 6 . Note that the ACPL -352J driver dedicated to drive the brake chopper IGBT shares a
secondary side power supply with the ACPL-352J that drives low-side power switch.
Figure 4: Power Management Block Diagram