1、描述/SCOPE:

本规格书适应于JMS型号的开关电源.

The purpose of the document is to specify the functional requirements of a20W switching power supply.

2、输入特性/INPUT CHARACTERISTICS:

   2.1输入电压/Input Voltage:

额定电压/Rated Voltage:100~240Vac

调整范围/Variation Range:90-264Vac

   2.2输入频率/Input Frequency:

额定频率/ Rated Frequency: 50/60Hz.

调整频率/Variation Frequency:47-63Hz

   2.3输入电流/Input Current:

    当输入交流电压为额定值的下限电压负载满载时,输入交流电流4A.

3Amps max At any input voltage and rated, DC output rated load.

   2.4浪涌电流/Inrush Current:

当输出为额定负载,环境温度为25℃,输入240Vac冷态起机时的浪涌电流小于为50A.

50 Amps Max. Cold start at 240Vac input, with rated load and 25℃ ambient.

   2.5AC漏电流/Ac Leakage Current:

当输入电压240Vac时,漏电流为0.25mA.

0.25mA Max.At240Vac input.

3、输出特性/OUTPUT CHARACTERISTICS:

3.1输出功率/Power output

3.2负载特性,调整率/Combined Load/Line Regulation

3.3纹波和噪音Ripple and Noise:

  测试条件:在额定电压及额定负载条件下,使用示波器带宽为20MHz连接到充电器的输出端,同时输出端并联一个47uF的电解电容和一个0.1uF的瓷片电容.

   Under nominal voltage and nominal load,the ripple and noise are as follows when measure with Max.Bandwidth of 20MHz and Parallel 47uF/0.1uF,crossed connected at testing point.

电压                纹波/噪音

Voltage               Ripple and Noise(Max.)

+5Vdc                 120Mv p-p

3.4启动延迟时间/Turn on delay time:

  当输入115Vac和输出负载时,启动时间为2S.

   2Second Max.at 115Vac input and output Max.load.

3.5上升时间/Rise time:

  当输入115Vac和输出负载时时间为40mS.

   40Ms Max.at 115Vac input and output Max load.

3.6保持时间/Hold up time:

  当输入115Vac和输出负载时,小保持时间为5Ms.

   5mS Min.at 115Vac input and output Max.Load.

3.7效率/Efficiency:

  当输入100Vac和输出负载时,小60%.

   60% Min.at 100Vac input and output Max.Load.

  当输入240Vac和输出负载时,小60%.

      60% Min.at 240Vac input and output Max.Load.

3.8过冲/Overshoot:

在电源开启或关闭的时候,15%.

15% Max.When power supply at turn or turn off.

4、保护功能/PROTECTION REQUIREMENT:

4.1短路电路保护/Short circuit protection:

该电源供给器在短路解除时能正常工作恢复.

The power supply will be auto recovered when short circuit faults remove.

4.2过流保护/Over current Protection:

过流故障排除后,电源将自动恢复正常工作.

The power supply will be auto recovered when over current faults remove.

4.3过压保护（Over Voltage Protection）

当输出电压超过额定电压的150%~180%时,电源将保护,故障排除后能恢复正常工作.

The power supply will auto recovered when faults remove 150%~180%.

5、环境要求/ENVIRONMENTAL REQUIREMET:

5.1工作温度/Operating Temperature:

0℃-40℃,满载,正常工作/Full load, Normal operation.

0℃to 40℃,Full load, Normal operation.

5.2储藏温度/Storage Temperature:-10℃ to 80℃

带外壳/With package

5.3工作湿度/Relative Humidity:

5%（0℃）~90%（40℃）,72小时,满载,正常工作.

5%(0℃)~90%(40℃)RH,72Hrs,Full load, Normal operating.

5.4振动/Vibration:

1.测试标准:国际电工电子委员会

Operating: IEC 721-3-3 3M3

5~9Hz,A=1.5mm

加速度（9~200Hz,Acceleration 5m / S2）

2.运输/Transportation:

IEC 721-3-2 2M2

5-9Hz,A=3.5mm

9~200Hz,加速度Acceleration=5m / S2

200~500Hz,加速度Acceleration=15m / S

3.轴向振动/Axes,10 cycles per axis.

在测试过程中不能出现性的损坏.

No permanent damage may occur during testing.

在电源开启和关闭后,样机能够恢复到初条件.

The product has to restore to its original situation after power off / on..

5.5跌落试验/Dropping Packed:

一个角,三个棱,六个面.

1 corner,3 edges, and 6 surfaces

高度76cm/ Height:76cm.

6、结构参数/MECHANICAL REQUIREMENT:

外壳/Enclosure:

外壳尺寸: 85*46*30mm;

The power supply size: 85*46*30mm;