开关电源测试项目及内容

Over Shoot & Under Shoot 电压过冲及过降
• Purpose: Measure whether output voltage over shoot or under shoot from the SPS rise to the output voltage stable. • 目 的:量测输出电压于开机到稳定时之间, 其电压上升是否有过冲或过降现象. • Environmental Conditions: Temperature 25℃, Relative Humidity 65% • 环境条件:温度 25℃ 相对湿度 65% • Test Conditions: 1.The input voltage frequency must be under any condition in the range of the product specification • 测试条件: 1.输入电压以产品规格之全电压频率范围 • 2. The output load is full load on all outputs. • 2. 输出负载以产品规格之最大额定电流值﹒ • Result limit: The range of over shoot & under shoot should be less than • 10% of the normal voltage. • 结果判定:过冲或过降幅度小于其电压值的10%.
Input Current Test 输入电流测试
• Purpose: Check the power supply’s input current be in the range of specification, and fuse is accord to safety requirement. • 目的: 确认电源的输入电流在规格范围内并且所用保险丝符合安 • 规要求. • Environmental Conditions: • Temperature : 25℃ ; Humidity: 65% • 环境条件: 温度 25℃ ; 湿度 65%. • Test Conditions: 1.The input voltage & corresponding frequency must be Min/115Vac/230Vac/Max of product specification. • 测试条件: 1.输入电压以产品规格之最小/115Vac/230Vac/最大电 压及相应频率 • 2. The output load is Full/Max load. • 2. 输出负载以满载/最大载测试
Efficiency And Power Factor 输出效率及功率因素
• • • • • • • • • • • • • Purpose: Measure the efficiency and power factor of the SPS. 目 的:量测电源供应器之输出效率及功率因素 Environmental Conditions: Temperature 25℃, Relative Humidity 65% 环境条件 : 温度25℃ 相对湿度65% Test Conditions: 1.The power supply must be on for 10 minutes before measure. 测 试 条 件: 1.需先开机10分钟 2. The input voltage & frequency must be under any condition in the range of the product specification. 2. 输入电压及频率以产品规格之全电压频率范围 3. The output load is full load on all outputs . 3. 输出负载以产品规格之最大额定电流值 Result limit: The efficiency must exceed the specified. 结果判定: 效率必须大于产品规格才合格.
DC1242-12_V1.2电源测试
•测试目的:
确认电源的性能与可靠度，提供具有依据 的测试数据给客户参考。确保研发出高性 能，高稳定性，高可靠度的产品。保证公 司产品的知名度与良好反应。
Inrush Current 开机瞬间电流
• • • • • • • • • • • • • • • • Purpose: Measure the inrush current of the input while the power supply turn on. 目 的:量测输入电源电压瞬间开启时，电源供应器之瞬间开机电流. Environmental Conditions: Temperature 25℃, Relative Humidity 65% 环境条件: 温度25℃ 相对湿度65% Test Conditions: 1.The input voltage frequency must be under any condition in the range of the product specification 测试条件: 1.输入电压以产品规格之全电压频率范围 Min/115Vac/230Vac/Max 2. The output load is full load on all outputs at under the product specification. 2. 输出负载以产品规格之最大额定电流值﹒ 3. The measurement can be implemented only when the AC input voltage at the phase of 90 ° and then the power supply turn on. 3. 量测时必须于输入之交流电压在相角90° 时，将电源供应器开启，量测其输出入瞬间 电流量﹒ 4. Do the test in cold start one time, so do in hot start one time. 4. 冷机和热机各做一次. Result limit: Sure there is no damage of components. 结果判定:不能造成产品组件损坏.
Load Regulation 负载调整率 (±5% or ±10%)
• Purpose: Measure the stability of the output voltage when the load is variable. • 目 的:量测电源供应器因输出负载变化之输出电压稳定度﹒ • Environmental Conditions: Temperature 25℃, Relative Humidity 65% • 环境条件:温度 25℃ 相对湿度 65% • Test Conditions: 1.The input voltage frequency must be under any condition in the range of the product specification • 测试条件: 1.输入电压以产品规格之全电压频率范围 • 2.Output load: Maximum, middle, minimum load by the product specification. • 2.输出负载以产品规格之最大,中间,最小额定电流值.(依产品规格书为依据) • Result limit: The output voltage can not exceed the allowed difference . • 结果判定:各组电压不能超出误差值
电压过冲
5vsb(过冲)
-12V过冲
SB过冲波形
-12V过冲
Line ReguFra Baidu bibliotekation 输入电压调整率
• Purpose: Measure the stability of the output voltage when the input voltage is variable. • 目的:量测电源供应器因输入电压变化输出电压稳定度﹒ • Environmental Conditions: Temperature 25℃, Relative Humidity 65% • 环境条件:温度 25℃ 相对湿度 65% • Test Demands: 1.The input voltage frequency must be under any condition in the range of the product specification • 测试条件: 1.输入电压以产品规格之全电压频率范围 • 2. The output load is full load on all outputs at under the product specification. • 2. 输出负载以产品规格之最大额定电流值 • 3. Test can be performed only after the SPS is on for about 10 minutes. • 3. 开机10分钟后测试. • Result limit: The output voltage can not exceed the allowed difference. • 结果判定:输出电压不可超出误差值.
No Load Start 无负载启动测试
• • • • • • Purpose: Check the power supply can start with no load. 目的: 量测控制开/关的开关需求电压. Environmental Conditions: Temperature : 25℃ ; Humidity: 65% 环境条件: 温度 25℃ ; 湿度 65%. Test Conditions: 1.The input voltage & frequency must be Min/Max rated of the product specification. • 测试条件: 1.输入电压以产品规格之最小/最大电压及频率 • 2. The output load is no load. • 2.输出负载以空载测试
Dynamic Load Regulation 动态负载变动率
• • • • • • • • • • • • • • • • Purpose: Measure the stability of output voltage under the condition of all kinds of load being synchronous varying. (Min Load Start & Each output Max Load) 目的:量测各组负载在做同步变化条件下,各组输出电压的稳定性. Environmental Conditions: Temperature 25℃, Relative Humidity 65% 环境条件:温度25℃, 相对湿度 65%. Test Conditions: 1. The input voltage frequency must be under any condition in the range of the product specification 测试条件: 1.输入电压以产品规格之全电压频率范围 2. Output transient step sizes for each output when at capacitive load: +12V1/40%,+12V2/60%,+5V,+3.3V/30%, +5Vsb/0.5A, -5V, -12V/0.1A. 2. 在容性负载条件,各组输出动态变化负载幅度 3. Simultaneous load steps on the +12V,+5V,+3.3V output,all step occur in the same direction. 3. 在+12V,+5V,+3.3V负载同时变化时,其所有负载变化的趋势应是一致的. 4. Dynamic frequency : 50Hz/10kHz. 4. 动态频率: 50Hz/10kHz 5. Slope: 1A/uS. 5. 斜率: 1A/uS. Result limit: Output voltage is in the product specification. 结果判定: 各输出电压在产品规格范围内.
Test Waveform
1.Input Current & Power 输入电流及功率
• • • • • • • • • • • Purpose: Measure the input current and power of the switch power supply. 目 的:量测电源供应器之输入电流及功率 Environmental Conditions: Temperature 25℃, Relative Humidity 65% 环境条件:温度 25℃，相对湿度65% Test Conditions: 1.The input voltage & frequency must be under any condition of the range of the product specification. 测试条件:1.输入电压及频率以产品规格之全电压频率范围 2. The output load is full load on all outputs 2.输出负载以产品规格之最大额定电流值 Full Load = Result limit: The maximum input current shall not exceed the specified. 结果判定:输入电流不能超出产品规格