Infineon REF-DAB11KIZSICSYSTOBO1 11 kW Bi-Directional CLLC DC-DC Power Development Kit

Develop high-efficiency EV and energy storage DC-DC solutions with REF-DAB11KIZSICSYSTOBO1, leveraging bi-directional CLLC topology, CoolSiC MOSFETs, and 97% efficiency.

The REF-DAB11KIZSICSYS Power Development Kit is an 11 kW bi-directional CLLC DC-DC converter designed for electric vehicle (EV) fast chargers and energy storage system (ESS) applications. Leveraging Infineon CoolSiC™ MOSFETs and compact EiceDRIVER™ 1ED gate driver ICs, this reference platform delivers up to 97% efficiency across 550–800 V input/output rails, combining high power density, reliability, and cost-effective design for rapid prototyping.

Built around a symmetric CLLC resonant network, the kit incorporates dual inductors and capacitors, enabling Zero-Voltage Switching (ZVS) on primary power switches and synchronous rectification on the secondary output. Phase-shift control and resonant frequency modulation optimize efficiency and performance, while its bi-directional capability allows seamless power flow reversal, essential for bidirectional EV charging or energy storage applications.

The REF-DAB11KIZSICSYS board comes with fully characterized hardware and complete design files, allowing engineers to quickly evaluate high-power DC-DC architectures and develop robust solutions for vehicular and stationary power systems. Using 1200 V CoolSiC MOSFETs in TO-247-4 packages, the platform reduces component count, improves thermal performance, and minimizes system weight and size.

With this development kit, engineers can accelerate the design of next-generation high-efficiency DC-DC converters, ensuring reliable, compact, and scalable solutions for modern EV and energy storage infrastructures.

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Why Choose REFDAB11KIZSICSYSTOBO1?

REF-DAB11KIZSICSYSTOBO1 is an 11 kW bi-directional CLLC resonant DC-DC reference design using Infineon CoolSiC MOSFETs and an XMC controller. It's optimized for high power-density, soft-switching efficiency, and EV/ESS charger prototyping.

CLLC bi-directional resonant topology with ZVS/ZCS: Symmetric CLLC tank delivers soft-switching in both forward and reverse directions, minimizing switching losses and enabling reliable high-power bidirectional operation (ideal for V2G/V2H).
SiC at production scale: implements 1200 V (IMZ120R030M1H) and 1700 V (IMBF170R1K0M1) CoolSiC MOSFETs and Infineon gate drivers, yielding low conduction loss, higher switching frequency, and smaller magnetics compared to silicon alternatives.
Representative system design (real BOM): It comes with a power board, auxiliary board, and controller board (XMC4400 MCU) with measured plots and a complete BOM that gives engineers production-relevant results, not just proof-of-concept data.
Synchronous-rectification and advanced control: SR on the secondary, software/hardware SR schemes, and XMC-based control allow high efficiency across the load range and firmware experimentation.
Turnkey evaluation: GUI (with Wi-Fi option), measurement dashboards, and documented test data accelerate validation and tuning.

Kit Contents

Main power board
Auxiliary power board
Controller Board

Features and Benefits

High performance MCUs for power conversion

High core performance in XMC4400 for 11 kW and XMC7000 for 50 kW fits power conversion requirement. PSOCTM Control C3 for higher switching frequency.
Analog peripheral set fits application power conversion demands: ADC and PWM.
Multiple connectivity interfaces UART,12C, SPI.

Wi-Fi

Robust and reliable connection from EV charger to gateway or directly to the Internet.
Remote monitoring of charge.
Allows future use case of connecting EV charger with ESS/Solar panels and energy gateway.
Connect to ESS to enable energy selling use case.

Bluetooth