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Evaluation Board, TN3050H-12WY & SCTW35N65G2V, Totem Pole PFC with Inrush Current Limiter



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STEVAL-DPSTPFC1 3.6KW bridgeless totem pole boost circuit achieves a digital power factor correction with inrush current limiter. It helps you to design an innovative topology with the latest ST power kit devices: a silicon carbide MOSFET (SCTW35N65G2V), a thyristor SCR(TN3050H-12WY), an isolated FET driver (STGAP2S) and MCU (STM32F334). This reference design also opens the path to a compact converter running at 72KHz offering a high peak efficiency, low THD distortion and reduced BOM. It achieves a robust circuit that meets EMC standards up to 4KV delivering high switching lifetime with reduced EMI emissions. The thyristor SCR used as AC line polarity switcher allows achieving an active current limitation at power up or line drop recovery: the PFC efficiency is optimal and no EMI bouncing effect occurs. The reference design includes a power board with bridgeless totem pole boost, a control board with its MCU, a PFC/ICL control firmware and an adapter board for software debug.
  • Peak efficiency: 97.5% with 3.7% THD
  • Compact PFC converter
  • Higher switching lifetime
  • Compliant with EMI normative at 4KV

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TN3050H-12WY & SCTW35N65G2V

Power Management

Totem Pole PFC with Inrush Current Limiter

Eval Board TN3050H-12WY & SCTW35N65G2V


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