Broadcom ACPL-352J Reference Manual

ACPL-352J

Vincotech H6.5 3-Level IGBT flowPACK Module Evaluation Board

Reference Manual
Version 1.0

Broadcom Confidential ACPL-352J-Ref-RM100

April 13, 2018

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ACPL-352J Reference Manual Vincotech H6.5 3-Level IGBT flowPACK Module Evaluation Board

Table of Contents

Chapter 1: Introduction ...................................................................................................................... 4

1.1 3-Level Topology....................................................................................................................................................... 4

Chapter 2: Description of H6.5 Evaluation Board ............................................................................ 5

2.1 Board Description.....................................................................................................................................................5

2.2 Basic Operation.........................................................................................................................................................8

2.3 Gate Drive Design ..................................................................................................................................................... 9

Chapter 3: Test Circuit and Result .................................................................................................. 12

3.1 Test Setup and Waveform...................................................................................................................................... 12

Appendix A: References .................................................................................................................. 14

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ACPL-352J Reference Manual Vincotech H6.5 3-Level IGBT flowPACK Module Evaluation Board

Excitation Freewheeling

Chapter 1: Introduction

1.1 3-Level Topology

3-Level topology has two main advantages over conventional 2-Level topology, namely higher efficiency and reduction in
filtering effort. 2-Level topology requires a large output filter and regenerates energy back to the DC bulk capacitor during
freewheeling. The regenerated energy has to pass the inverter twice and will cause additional power dissipation.

Figure 1: 2-Level Topology during Excitation and Freewheeling

In a 3-Level topology, the excitation works the same as the 2-Level, but during freewheeling, the H-bridge is turned off and
the filter's primary output is shorted. The switch voltage is reduced and the switching losses and the size of the output filter
are minimized.

Figure 2: 3-Level Topology with H-bridge Turned Off and Output Shorted during Freewheeling

This reference design will discuss the evaluation board of Vincotech H6.5 3-Level IGBT module for 3-Level topology.

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ACPL-352J Reference Manual Vincotech H6.5 3-Level IGBT flowPACK Module Evaluation Board

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Chapter 2: Description of H6.5 Evaluation Board

2.1 Board Description

Figure 3: Evaluation Board for flowPACK 1 H6.5 Module

Figure 4 shows the simplified block diagram of the evaluation board and the applied circuit designed by Vincotech. It consists

of a Vincotech flowPACK1 H6.5 module in a single phase H6.5 3-Level topology. The module has six 650V IGBTs and five
diodes. The modules that can be used in this evaluation board come in three current ratings:

 10-FY07HVA050S5-L984F08 – 650V/50A
 10-FY07HVA075S5-L985F08 – 650V/75A
 10-FY07HVA100S5-L986F08 – 650V/100A

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