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This whitepaper evaluates a three-level Vienna rectifier design for DC charging, demonstrating how silicon-based switches and diodes achieve high efficiency with low circuit complexity on standard three-phase grids.

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Bodo Arlt

New Whitepaper: Performance Evaluation of Silicon-Based 3-Level Vienna Rectifier in ISOPLUS ^® SMPD Package

Public DC-charging infrastructure is connected to the public three-phase low-voltage grid. Therefore, it must comply with international standards and the corresponding grid codes. The widely adopted Vienna rectifier makes it possible to meet this requirement and offers very high effi ciency at low circuit complexity. It allows the use of fast 650 V silicon-based switches and 1200 V diodes to operate on most three-phase low voltage grid connections.

In this article, measurement results are presented to convey the performance of the Vienna rectifier utilizing the compact ISOPLUS ^® Surface Mounted Power Device (SMPD) package, and to indicate the power- and efficiency-levels that can be achieved based on silicon technology.

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