Product overview
Key Benefits
Description
The STEVAL-10MLPVCB is a 10 kW multilevel buck/boost converter with MPPT evaluation system.
It is based on a three-level power stage that is configured using flying capacitors and SiC 650 V MOSFETs in buck/boost mode.
In buck mode, the input voltage range is 425-850 V and the nominal output voltage is 400 V, with active current sharing on a common 400 V dc bus for feeding the battery bank or an inverter.
The same evaluation board can function as a boost mode with a nominal output voltage of 800 V and an input voltage range of 250-800 V by changing a few resistors in hardware and firmware for boost operation.
The STEVAL-10MLPVCB includes dual independent input channels and achieves a peak power conversion efficiency of > 99% using a perturb and observe MPPT algorithm.
A single 32-bit STM32G474RE Arm MCU controls MPPT, dual-channel conversion, flying capacitor balancing, output regulation and protection mechanisms.
The evaluation board is targeted at renewable and energy storage applications.
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All features
- MPPT range: 280/450V – 850 V array input
- Output power (nominal): 7/10kW
- Output voltage (nominal): 400/800V
- Efficiency > 99% peak, 98.5% full power
- Input voltage disconnect: <400/250V
- Two channels or parallel configuration
- Comprehensive safety mechanisms
