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Evaluation Board, VIPER27H, STM32F334C8, 2kW Fully Digital AC-DC Power Supply (D-SMPS)


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STEVAL-ISA172V2   Datasheet
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Product Overview

The STEVAL-ISA172V2 is a 2KW fully digital AC to DC power supply (D-SMPS) evaluation board. It consisting of 2 power sections, a two phase interleaved power factor corrector (PFC) and a DC to DC phase shifted full-bridge converter, controlled by a STM32F334 microcontroller for each section. The interleaved PFC comprises 2 boost converters operating with 180° out of phase, based on 600V MDmesh M2 power MOSFETs. The downstream section comprises of a DC to DC phase shifted full-bridge converter based on MDmesh DM2 Power MOSFETs and performing voltage step down using HF transformer with a primary to secondary ratio chosen to maintain high enough efficiency and regulation over entire operating range. On primary side transformer is supplied by full-bridge converter and switching losses are reduced. On secondary side synchronous rectification (SR) is used to ensure low conduction losses. The output voltage waveform is rectified by STripFET Power MOSFETs and then smoothed by output filter.
  • 90V to 264V input AC voltage, 48V or 52V output voltage, 42A (max) output current
  • 45Hz to 65Hz input AC frequency, 60KHz PFC switching frequency, PFC Average current mode control
  • Cycle by cycle PFC current control, 0.99 maximum power factor & 100KHz DC to DC switching frequency
  • 80 PLUS platinum level overall efficiency, 4KV HF transformer isolation voltage
  • Forced cooling with air flow speed modulation according to the output power
  • Over temperature protection, Output short circuit protection & EMC filter for noise reduction
  • PFC power stage based on MDmesh M2 power MOSFETs and SiC diodes
  • DC-DC power stage based on Mdmesh DM2 power MOSFETs
  • Synchronous rectification based on STripFET power MOSFETs
  • Active clamp circuit based on MDmesh DM2 power MOSFETs


Power Management


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Evaluation Board VIPER27H, STM32F334C8


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Technical Documents (1)

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More stock available to supplier lead times which is approximately 9/30/24

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