STMicroelectronics AC-DC Converter

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