The power supply shall be in protection status when the over currents applied to the output rail, and shall be self-recovery when the fault condition is removed.
當過電流時,電源處于保護狀態,當過電流情況解除后,產品將會自動恢復正常。
4.2 Short Circuit Protection/短路保護
The input power shall decrease when the output of short ,the power supply shall no damage , and shall be self-recovery when the fault condition is removed.
1)Connect the input of power supply to AC input, and output to max. load、nor. Load、Min. load.
將待測電源的輸入端連接到AC輸入,輸出端接最大負載、額定負載、最小負載。
2)Adjust input voltage to 90Vac、220Vac、264Vac respectively, then turn on and turn off three times .If no damage ,ON/OFF test OK.
將調壓器分別調至90Vac、220Vac、264Vac,分別開關機三次,開關機正常。
12.3.2 Output Voltage Test/輸出電壓測試
1)Connect the input of power supply to AC input,and output to max. load、nor.Load、min. load ; test output voltage at any input voltage between 90Vac and 264Vac ,the output voltage within
1)Test condition:Input 220Vac and output to max.load
測試條件:輸入電壓調節為220Vac,輸出接最大負載
2)Test method:Measurement is done by 20MHz bandwith oscilloscope and the output paralleled a 0.1μF ceramic capacitor and a 10μF electrolysis capacitor of low ESR and high frequency.(Under 220Vac input and max.load),Block diagram as following: