基于TOP267VG设计的36.3W LCD监视器电源方案

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