48v2a电源适配器-东莞市久硕科技有限公司

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 range			180V---264V
1.2	额定输入电压范围Rated input voltage range			200V--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 range			60Hz
1.5	额定输出电压Rated output voltage			48V
1.6	额定输出电流Rated output current			2A
1.7	效率efficiency：>100Vac/220Vac			>86%
1.8	工作温度范围Operating temperature			40℃
1.9	IP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/50	100%	0.67	93.00	45.70	2.00	91.40	0.98	0.593	2.00
	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






	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






	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






	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






	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






	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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