Vincotech Silicon Carbide DC Power Modules For EV Battery Fast Charging

Vincotech offers a wide range of silicon carbide (SiC) power modules for use in DC fast chargers for electric vehicles. Standard and state-of-the-art power module topologies offer engineers a flexible solution for supply-chain resilience, with multiple-sourced internal SiC components and various housing and PCB options available.

Vincotech’s DC fast charging solutions cover AC/DC converters from the grid to the charging station and DC/DC converters to match the voltage requirements for an EV’s battery. The use of SiC components in Vincotech’s design enables higher switching frequencies for lighter, more compact converters with lower filtering costs, and Vincotech’s modules offer greater than three-fold power cycling improvements, higher reliability, and longer service life over previous technologies. Additionally, press-fit pins and pre-applied thermal interface material allow for fast installation with reduced production cost.

AC/DC Modules

Vincotech’s AC/DC modules are available in 2- and 3-level PFC topologies that feature SiC MOSFETs and fast IGBT chip technology for high-speed switching and improved efficiency, a Kelvin emitter for better switching performance, an integrated DC capacitor to reduce voltage overshoot, and a temperature sensor in a high-power, low-inductive package.

The 3-level topologies are recommended for engineers seeking higher efficiencies at lower costs. These include:

  • 15-, 20-, 30-, 50-, 60-, and 75-kW NPFC topologies @ 99% efficiency*
  • 15-, 25-, 30-, 35-, and 60-kW ANPFC topologies @ 98.8% efficiency*
  • 25- or 60-kW SPFC topologies @ 98.7% efficiency*

*Benchmark 22 kW @ 40 kHz switching frequency
NPFC = Neutral Boost PFC
ANPFC = Advanced Neutral Boost PFC
SPFC = Symmetric Boost PFC

While all these modules are suited for unidirectional charging, the SPFC and NPFC modules can be adapted for bidirectional charging by replacing boost diodes with switches. Use the form below to contact Vincotech for more information on system integration.

The 2-level PFCs are available in the following topologies and power ratings:

  • 10- and 22-kW sixpack topologies
  • 40-, 100-, and 150-kW half-bridge topologies
  • 30-kW CSPFC (Current Synthesising PFC) topologies

DC/DC Modules

Vincotech’s DC/DC modules are available in half-bridge configurations for the primary stage and rectifier-bridge configurations for the secondary stage to create a full-bridge resonant LLC convertor. Primary-stage SiC MOSFETs allow this topology to reach >100 kHz switching frequencies with a peak efficiency of >95.5%, using a benchmark of 25 kW @ 110 kHz.

As well as the standard Kelvin emitter for better switching performance, integrated DC capacitor to reduce voltage overshoot, and high-power, low-inductive packages – with various housing options available – these modules feature open or common emitter configuration.

The wide half-bridge module options include the following power ratings:

  • 15 kW using 950 V SiC MOSFETs
  • 10, 25, and 50 kW using 1200 V SiC MOSFETs
  • 22, and 30 kW using 650 V fast IGBTs
  • 22 kW using 1200 V fast IGBTs

The ultrafast rectifier-bridge module options include:

  • 15 and 30 kW using 650 V SiC diodes
  • 25 and 50 kW using 1200 V SiC diodes
  • 15 kW using 1700 V SiC diodes
  • 50 kW using 650 V fast diodes
  • 30 kW using 1200 V fast diodes

Vincotech also offers other modules for immediate use in DC fast charging solutions. For more information on Vincotech’s full product range, fill in the form below with details of your project, and ipXchange will put you in touch to find the right solution for you.

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