STMicroelectronics Evaluation Board AC-DC Converter for STM32F334C8

STEVAL-ISA172V2 AC-DC D-SMPS Evaluation Board for STM32F334

The STMicroelectronics STEVAL-ISA172V2 is a digital AC-DC power supply (D-SMPS) evaluation board. The board features two power sections; a 2-phase interleaved power factor corrector (PFC) and a DC-DC full-bridge converter. A STM32F334 microcontroller controls each section.

• Features and Benefits
• Input voltage: 90 V to 264 V
• Output voltage: 48 V or 52 V, Max output current: 42 A
• Input AC frequency: 45 Hz to 65 Hz
• Nominal output power: 2 kW
• Interleaved PFC stage
• PFC switching frequency: 60 kHz
• PFC Average current mode control
• Cycle by cycle PFC current control
• Maximum power factor: 0.99
• DC-DC stage: full-bridge phase-shifted ZVS with synchronous rectification
• DC-DC switching frequency: 100 kHz
• Overall efficiency: 80 PLUS Platinum level
• HF transformer isolation voltage: 4 kV
• Forced cooling with airflow speed modulation according to the output power
• Over-temperature protection
• Output short circuit protection
• PFC control & DC-DC control: managed by STM32F334C8
• 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
• EMC filter for noise reduction

AC/DC Converters, STMicroelectronics