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48v2a电源适配器

所属栏目:适配器

发布时间:2023-09-16

关注度:70次

简单介绍:电源适配器(Power adapter)是小型便携式电子设备及电子电器的供电电源变换设备,一般由外壳、变压器、电感、电容、控制IC、PCB板等元器件组成,它的工作原理由交流输入转换为直流输出;按连接方式可分为插墙式和桌面式。广泛配套于安防摄像头,机顶盒,路由器,灯条,按摩仪等设备中。

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电源电性能参数检验测试报告
Power supply electrical performance parameter test report
产品型号:
Product model
48V 2A测试人员:
testor

报告编号
Report no.:
20230719-XM


1.电源基本参数Basic parameters of power supply
1.1输入电压范围Input voltage range180V---264V



1.2额定输入电压范围Rated input voltage range200V--240V



1.3输入启动电压范围(带额定负载)Input starting voltage range (with rated load)




1.4输入电压频率范围Input voltage frequency range60Hz



1.5额定输出电压Rated output voltage48V



1.6额定输出电流Rated output current2A



1.7效率efficiency:>100Vac/220Vac>86%



1.8工作温度范围Operating temperature40℃



1.9IP防护等级IP protection level




1.10产品安全认证Product safety certification




1.11产品EMC认证Product EMC certification




2.测试引用标准技术标准要求:以我司对电源技术条件要求Test reference standard Technical standard requirements: to our technical requirements for power supply












3.输入及输也特性Input and output characteristics
3.1输入及输出特性测试条件:电源满载时老化半小时以上测试(室温25℃)Input and output characteristics test conditions: aging test for more than half an hour when the power supply is fully loaded (room temperature 25℃)

规格要求:
Specification requirements
满载效率:
Full-load efficiency

因数:
factor

空载功耗:
No-load power consumption

谐波失真:
Harmonic distortion



输入电压
input voltage
负载程度
full-load percentage
输入电流
input current
输入功率
input power
输出电压
output voltage
输出电流
output current
输出功率
output power
效率
efficiency
功率因数
power factor
过流
overcurrent
谐波失真
Harmonic distortion

230V/50100%0.67 93.00 45.70 2.00 91.40 0.98 0.5932.00 


75%0.57 77.32 46.10 1.50 69.15 0.89 0.583


50%0.39 52.03 46.30 1.00 46.30 0.89 0.573


25%0.20 26.29 46.60 0.50 23.30 0.89 0.561


0%0.02 0.32 47.50 0.00 0.00 0.00 0.09

要求参数范围:









测试结论Test conclusion:符合电动车充电器参数要求Meet the requirements of electric vehicle charger parameters
























































3.2工作波形测试Working waveform test


VCC工作波形
VCC operating waveform

CH1:VCC

Fb工作波形
Fb operating waveform

CH1:FB

图片1.png




图片2.png
































































结论:空载VCC 12.3V,满载VCC 14.3V 符合芯片要求,工作正常
Conclusion: No-load VCC 12.3V and full-load VCC 14.3V meet the requirements of chip and work normally

结论:空载FB 1.26V,满载FB 2.22V 符合芯片要求,工作正常Conclusion: No-load FB 1.26V and full-load FB 2.22V meet the requirements of the chip and work normally


绿灯转灯波形Green to green waveform
CH1:绿灯
CH2:Iout


红灯转灯波形Red light to light waveform
CH1:绿灯
CH2:Iout

3.png




4.png
































































结论:空载绿灯亮,带载150mA以上时,绿灯熄灭。Conclusion: The green light is on when no load is on, and the green light is off when the load is above 150mA.
结论:空载红灯熄灭,带载150mA以上时,红灯亮。Conclusion: No-load red light is off, and the red light is on when the load is above 150mA.


风扇工作波形Fan operating waveform
CH1:风扇
CH2:Iout







5.png






































































结论:空载风扇停转,带载150mA以上时,风扇转动。Conclusion: The no-load fan stops, and the fan rotates when the load is above 150mA.







MOS  VDS waveform
波形

CH1:VDS

整流管VFD波形
Rectifier VFD waveform

CH1:VFD

6.png




7.png
































































结论:230V输入,满载时VDS为519V,满足MOS要求。Conclusion: With 230V input, the VDS is 519V at full load, which meets the MOS requirement.
结论:230V输入,满载时VFD为148V,满足二极管400V要求。Conclusion: With 230V input, the VFD is 148V at full load, which meets the requirement of 400V diode.












4.保护特性:Protective characteristic

项目负载程度要求条件结果要求测试结论
输出输出过压100%
短接稳压环路,使输出过充,再恢复环路。输出是否保护,是否具有钳制现象未保护保护未
恢复
保护并
恢复
输出过流100%<Iout调节输出电流至>OCP输出是否保护,是否恢复。未保护保护未
恢复
保护并
恢复
输出短路100%RL=0R短接输出正负,并再次恢复输出是否保护,是否恢复。未保护保护未
恢复
保护并
恢复














过流保护波形
Overcurrent protection waveform
CH1:Vout




CH1:Vout

8.png




9.png
































































结论:230V输入,过流后,输出无电压,恢复后输出电压正常Conclusion: After 230V input, there is no output voltage after overcurrent, and the output voltage is normal after recovery
结论:230V输入,短路后,输出无电压,恢复后输出电压正常Conclusion: 230V input, after short circuit, output voltage is not, after recovery output voltage is normal


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