DN05061/D, Universal AC Input, 5 Volt Output, 10 Watt Power Supply Design Note
使用 onsemi 的 NCP431A 的参考设计
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依据最终产品
- Electronic Meter
- Smart Electric Meter
- White Goods
说明
- DN05061/D, Design Note describes a simple 10 watt, universal AC input, constant output voltage power supply intended for AC adapters, industrial equipment, or white goods, where isolation from the AC mains is required, and low cost, high efficiency, and low standby power are essential. The featured power supply is a simple CCM flyback topology utilizing NCP1124 monolithic with integral 9-ohm, vertical channel MOSFET in a PDIP7 package (U1). This Design Note provides the complete circuit schematic details and BOM for 5V, 2A power supply. The simple input EMI filter (C1, L1) is adequate to pass Level B for FCC conducted EMI compliance. The NCP431 programmable zener is used as an error amplifier (U3), plus an optocoupler feedback scheme (U2) provides for excellent line and load regulation with high input-to-output safety isolation
主要特色
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Conversion TypeAC to DC
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Input Voltage85 to 265 (AC) V
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Output Voltage5 V
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Output Current2.2 A
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Output Power10 W
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TopologyFlyback- CCM
Featured Parts (4)
| 零件编号 | 供应商 | 类别 | 说明 | |||
|---|---|---|---|---|---|---|
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PS2561L-1-F4-A | Renesas Electronics | Transistor and Photovoltaic Output Photocouplers | DC-IN 1-CH Transistor DC-OUT 4-Pin PDIP SMD T/R | 买入 | |
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NCP431AVSNT1G | onsemi | Voltage References | V-Ref Adjustable 2.5V to 36V 100mA 3-Pin SOT-23 T/R | 买入 | |
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NCP431ACSNT1G | onsemi | Voltage References | V-Ref Adjustable 2.5V to 36V 100mA 3-Pin SOT-23 T/R | 买入 | |
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NCP431AISNT1G | onsemi | Voltage References | V-Ref Adjustable 2.5V to 36V 100mA 3-Pin SOT-23 T/R | 买入 | |