图1。top264-271功能方框图 (e和v封装).

图2。top264-271高效19v 65w通用输入反激电路图

图3。top264-271高效12v 30w通用输入反激电路图

采用topswitchtm-jx top267vg的薄型36.3w lcd监视器电源薄型36.3w lcd监视器电源主要特性:

low profile <12 mm component height

very low standby consumption

<100 mw input power with 6 ma load on 5 v output at 230 vac input

<90 mw input power with 5 ma load on 5 v output at 230 vac input

very low no-load input power

no-load input power of 55 mw at 230 vac input

high full-load efficiency

>82% efficiency at 90 vac / 60 hz

low topswitch-jx device temperature

<92℃ at 90 vac, 60 hz, 25℃

<100℃ at 90 vac, 60 hz, 40℃

>12 db margin on conducted emi

hysteretic output overvoltage protection

hysteretic output short-circuit protection

hysteretic thermal overload protection with large hysteresis prevents board

temperatures >100℃

薄型36.3w lcd监视器电源指标:


图4.薄型36.3w lcd监视器电源电路图

图5.薄型36.3w lcd监视器电源pcb布局图
材料清单(bom):



图6.变压器电特性图