EPR - 12 - PC正激变换器反激式待机电源
01-Feb-05
目录
表Contents............................................................................................................... 2
1引言................................................................................................................. 3
2供应Requirements..................................................................................................五
2.1电源规格.............................................. ....................................... 5
2.2条件交叉调节测试............................................ .......................... 6
2.3输出特性............................................... .............................................. 6
2.4瞬态过冲............................................... ................................................. 6
2.5短路Protection............................................................................................ 6
3原理图................................................................................................................. 7
4电路描述..................................................................................................... 10
5 PCB Layout............................................................................................................... 12
6比尔Materials......................................................................................................... 14
材料6.1电费............................................. .......................................... 14
材料............................................. 6.2硬件比尔......................................... 16
6.3输出物料的有线电视的费用............................................ .................................... 16
材料............................................. 6.4散热器法案........................................ 17
7变压器规格............................................... .......................................... 18
7.1 145 W正向变压器............................................. .................................... 18
7.1.1电气规格............................................. ..................................... 18
7.1.2 Materials......................................................................................................... 18
7.1.3变压器构建图............................................ ................................ 19
7.1.4变压器结构............................................. .................................. 19
7.2 10瓦PC待机变压器............................................ ................................. 21
7.2.1电气规格............................................. ..................................... 21
7.2.2 Materials......................................................................................................... 21
7.2.3变压器构建图............................................ ................................ 22
7.2.4变压器结构............................................. .................................. 22
7.3输出耦合电感.............................................. ......................................... 23
7.3.1环形布局............................................ .............................................. 23
7.3.2 Inductances.................................................................................................... 23
7.4磁放大器电感器............................................. ............................................. 24
7.4.1核心规范............................................. ............................................. 24
7.4.2绕组指令............................................. ............................................ 24
8 PIXls变压器设计表格.............................................. .......................................... 25
9测试结果..............................................................................................................三十
10性能Data..................................................................................................... 31
10.1的效率和监管.............................................. .................................... 31
10.2功率限制与输入线........................................... ....................................... 32
11 Waveforms................................................................................................................ 33
11.1排水开关波形.............................................. ................................. 34
11.2输出纹波的测量.............................................. .............................. 36
12传导EMI ......................................................................................................... 37
13修订历史记录........................................................................................................ 38
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