使用集成隔離反激式轉(zhuǎn)換器降低設(shè)計(jì)復(fù)雜度

　　電流隔離是一個(gè)關(guān)鍵要求的電源設(shè)計(jì)的應(yīng)用程序工作電壓高或接近人類。反激轉(zhuǎn)換器提供了一個(gè)有效的隔離電源解決方案，但可以提出顯著的設(shè)計(jì)挑戰(zhàn)，以確保在寬負(fù)載范圍內(nèi)的穩(wěn)定輸出

　　為了幫助克服這些挑戰(zhàn)，我們將描述的問(wèn)題，然后使用一個(gè)特定的模型轉(zhuǎn)換器作為一個(gè)例子來(lái)指定一些考慮的因素，以實(shí)現(xiàn)一個(gè)成功的設(shè)計(jì)。

　　The challenges associated with producing an efficient power supply based on flyback topology require the knowledge of experts in power design. Today‘s demand for faster delivery of smaller， simpler designs exacerbates the difficulty of working with traditional approaches. For designers， newer integrated devices such as the ROHM BD7F series offer an effective solution for less complex designs with a faster time to market.

　　Among converter topologies， the flyback converter offers isolation， and requires relatively few parts even in discrete designs. Fundamentally， a flyback converter is a buck-boost converter utilizing a transformer. While the flyback converter’s switching topology enables output regulation， its transformer provides galvanic isolation and enables you to select the input/output voltage ratio by selecting an appropriate winding ratio.