[消费电子]

具有 BJT 的 85VAC-265VAC 输入、12V/3W 低成本反激

2015-4-13 14:32:53 1891

0 `描述及特性 This 12V/5W reference design is optimized for very low cost and yet maintains good efficiency. Two key factors for minimizing cost are a BJT is used for the main power switch, and primary-side regulation eliminates the need for an optocoupler. The UCC28720 quasi-resonant flyback controller is able to implement both of these features. With quasi-resonant switching, efficiency at full load is over 80%, even with a BJT switch. Light-load losses are kept below 100mW due to burst mode operation. PMP9074 Test Results.pdf (1.88 MB, 下载次数: 10 ) PMP9074 BOM.pdf (81.29 KB, 下载次数: 1 ) PMP9074 Gerber.zip (171.06 KB, 下载次数: 2 ) PMP9074 PCB.pdf (279.26 KB, 下载次数: 2 ) PMP9074 Schematic.pdf (126.89 KB, 下载次数: 3 ) ` 0
2015-4-13 14:32:53　　评论淘帖0 举报相关推荐 • 具有BJT的85VAC-265VAC 输入、5V10W低成本反激测试数据 6 • 具有BJT的85VAC-265VAC 输入、5V10W 低成本反激BOM 14 • 具有BJT的85VAC-265VAC 输入、5V10W 低成本反激设计文件 9 • 具有 BJT 的 85VAC-265VAC 输入、5V/10W 低成本反激 2307 • 低成本BJT控制的85VAC-265VAC输入、5V/10W反激 2070 • 85VAC-265VAC 输入、5V7.5W 低成本、小尺寸反激电路原理图的分享 32 • 85VAC-265VAC 输入、5V7.5W 低成本、小尺寸反激电路测试数据 31 • 85VAC-265VAC输入，12V和3.3V双路输出的4W反激参考设计 1645 • 85VAC-265VAC 输入、5V/7.5W 低成本、小尺寸反激 2179 • 85VAC-265VAC 输入、4W 双路输出 12V 和 3.3V 反激 1946