28-Mar-11
DER -277无电解电容, 7 W LED驱动器使用LNK403EG
目录
介绍.............................................................................................................5
电源规格............................................... ...................................... 7
概要...............................................................................................................8
电路说明................................................ .................................................. 0.9
4.1
输入滤波.......................................................................................................9
4.2
使用LinkSwitch -PH初级.............................................. .......................................... 9
4.3
偏置电源和输出过压检测............................................ ......... 9
4.4
输出反馈................................................ ............................................... 10
4.5
输出整流和滤波.............................................. ......................... 10
4.6
TRIAC调光相接口电路............................................. ............ 10
5
PCB布局...........................................................................................................11
6
材料清单......................................................................................................13
7
变压器规格................................................ ..................................... 14
7.1
电动Diagram..............................................................................................14
7.2
物料............................................................................................................14
7.3
变压器建设图............................................... ................................. 15
7.4
变压器结构................................................ .................................. 15
8
变压器设计表格............................................... .......................... 16
9
性能数据................................................ ................................................. 19
9.1
效率与电压和输出( LED串)电压....................................... ... 19
9.1.1
18 V ............................................................................................................19
9.1.2
15 V ............................................................................................................19
9.1.3
21 V ............................................................................................................20
9.2
规.........................................................................................................21
9.2.1
输出电压和线.............................................. ............................... 21
9.2.2
线Regulation...........................................................................................22
10
热Performance............................................................................................24
10.1 V
IN
= 115 VAC ...................................................................................................24
10.2 V
IN
= 230 VAC ...................................................................................................24
11
谐波数据......................................................................................................25
12
波形............................................................................................................27
12.1输入线路电压和电流............................................ .............................. 27
12.2漏极电压和电流............................................. .................................... 27
12.3输出电压和纹波电流............................................ ........................ 28
12.4漏极电压和电流启动配置文件......................................... ............... 28
12.5输出电流和漏极电压的短路输出........................................ 29
12.6负载开路输出电压............................................. ................................... 29
13
调光................................................................................................................30
13.1相输入 - 输出电流........................................... .............................. 30
13.2输出电压和输入电流波形在调光........................ 31
13.2.1 V
IN
= 115 VAC / 60 Hz的............................................ .................................... 31
13.2.2 V
IN
= 230 VAC / 50 Hz的............................................ .................................... 32
14
线Surge.............................................................................................................33
15
传导EMI .....................................................................................................34
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