TIDA-00628
具有簡化變壓器的無緩衝器非隔離式 AC/DC 返馳式轉換器參考設計
TIDA-00628
概覽
TIDA-00628 is a 15V/6.5W non-isolated, single output, AC/DC Flyback power supply that is capable of operating from wide input voltage ranging from 85Vac to 440Vac. This design demonstrates 2 key features (1) the elimination of snubber components enabled by use of a high-voltage bipolar transistor and (2) simplified transformer design with no need for an auxilliary winding. Low system parts count and built in advanced protection features result in a cost-effective solution for electricity meters and industrial designs.
特點
- Input voltage up to 440Vrms, 15V/6.5W output
- No snubber - reduces BoM count and PCB area
- BJT switch to reduce system cost
- Non Isolated output allows simplified transformer with no auxilliary winding
- Typical efficiency of 80% at 230V, 6.5W
- Compliant with Conducted Emissions: CISPR 22, Class B
已開發完全組裝的電路板，僅供測試與性能驗證，且為非賣品。
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| 類型 | 標題 | 下載最新的英文版本 | 日期 | |||
|---|---|---|---|---|---|---|
| * | 設計指南 | 6.5-W Snubberless Flyback Converter Using BJT Primary Switch Design Guide (Rev. A) | 2016/1/27 | |||
| 使用指南 | TIDA-00628 Transformer Specification (Wurth Elektronik) | 2015/8/25 |