該演示板設計為隔離式 24 V、5 V 和 3.3 V AC/DC SMPS,可為負載提供高達 5 W 的功率。在輸入端,可以連接單相、2 相或 3 相通用
電源。開關模式
轉換器以反激模式運行,最大頻率約為 50 kHz。內置過流和
短路保護。空載條件下的功耗低于 50 mW。此電路使用 TVS
二極管實現 EMI 濾波和浪涌保護。此應用旨在用作 3 相
低功耗 SMPS,特別適用于 3 相工業和多相電子計量 SMPS 應用。
The demo board is designed as an isolated 24 V, 5 V and 3.3 V AC/DC SMPS for supplying up to 5 W to a load.
On the input side, single phase, 2-phase or 3-phase Universal Mains power can be connected. The switch-mode converter operates in flyback mode at a maximum frequency of around 50 kHz. Overcurrent and short-circuit protection are built in. The power consumption is below 50 mW under no-load conditions.
EMI filtering and surge protection using TVS diodes is implemented in this circuit. This application is intended as a 3-phase low-power SMPS which is especially suited for 3-phase industrial and multi-phase e-metering SMPS applications.