STEVAL-DPSTPFC1

STEVAL-DPSTPFC1 is a 3.6kW bridgeless totem pole boost circuit that achieves digital power factor correction (PFC) with inrush current limiter (ICL). It helps design an innovative topology using ST power kit devices including a silicon carbide MOSFET, thyristor SCR, isolated FET driver and STM32F334 32-bit MCU. This reference design also opens the path to a compact converter running at 72kHz offering a high peak efficiency, low THD distortion (97.5% with 3.7% THD). The reference design includes a power board with bridgeless totem pole boost (with an inrush limiter circuit, switch drivers and an auxiliary power supply), a control board with its MCU, a PFC/ICL control firmware and an adapter board for software debug. Suitable for EV/HEV on-board chargers, charging stations, motor drive, motion control, UPS, industrial battery charger and server/telecom SMPS applications.

• Peak efficiency: 97.5% with 3.7% THD
• Compact PFC converter
• Higher switching lifetime
• Compliant with EMI normative at 4kV