Powerint 公司的DER230是采用TOP256EN的40W高效電源參考設計,主要用于迷你型筆記本電腦適配器.通用電壓90-265VAC輸入,滿負荷是的效率大于86%,230VAC時無負載的功耗低于120W，超過USA能源和能源之星EPS v2, EU CoC v4 和EuP Tier 2規范要求, 滿足EN55022B的EMC要求,并有8dB的富余量.本文介紹了DER230 40W電源參考設計的主要優勢和指標,以及參考設計的詳細電路圖和所用材料清單.
40 W Power Supply Using a TOP256EN for Mini Notebook Adapter
40W高效電源主要特性和優勢:
Low cost, low parts count
High full load efficiency at 115 VAC / 60 Hz (>86%)
High active mode efficiency at 115 VAC / 60 Hz (>87%)
Exceeds USA Energy Independence and Security Act 2007 of 83%
Exceeds Energy Star EPS v2 requirement of 85.3%
Exceeds EU CoC v4 and EuP Tier 2 requirement of 85.3%
Low no-load consumption <120 mW at 230 VAC
High light-load efficiency
Tight primary sensed output overvoltage protection
Auto-restart output overvoltage protection and output overload protection
Auto-restart auto-recovery output short circuit protection
Meets EN55022B conducted EMC with >8 dB margin
This document is an engineering report describing a 40 W power supply utilizing a TOP256EN. This power supply was intended as a general evaluation platform for mini notebook or netbook adapters.
The document contains the power supply specification, schematic, bill of materials,transformer documentation, printed circuit layout, and performance data.
圖1.DER230電源參考設計PCB外形圖
DER230電源指標:
圖2.DER230電源電路圖
DER230電源參考設計材料清單(BOM):
