开关电源测试项目及内容

電源測試,測試目的:確認電源的性能與可靠度，提供具有依據的測試數據給客戶參考。確保研發出高性能，高穩定性，高可靠度的產品。保證公司產品的知名度與良好反應。,InrushCurrent開機瞬間電流,Purpose:Measuretheinrushcurrentoftheinputwhilethepowersupplyturnon.目的:量測輸入電源電壓瞬間開啟時，電源供應器之瞬間開機電流.EnvironmentalConditions:Temperature25,RelativeHumidity65%環境條件:溫度25相對濕度65%TestConditions:1.Theinputvoltagefrequencymustbeunderanyconditionintherangeoftheproductspecification測試條件:1.輸入電壓以產品規格之全電壓頻率範圍Min/115Vac/230Vac/Max2.Theoutputloadisfullloadonalloutputsatundertheproductspecification.2.輸出負載以產品規格之最大額定電流值3.ThemeasurementcanbeimplementedonlywhentheACinputvoltageatthephaseof90andthenthepowersupplyturnon.3.量測時必須於輸入之交流電壓在相角90時，將電源供應器開啟，量測其輸出入瞬間電流量4.Dothetestincoldstartonetime,sodoinhotstartonetime.4.冷機和熱機各做一次.Resultlimit:Surethereisnodamageofcomponents.結果判定:不能造成產品元件損坏.,TestWaveform,1.InputCurrentHumidity:65%環境條件:溫度25;濕度65%.TestConditions:1.TheinputvoltageHumidity:65%環境條件:溫度25;濕度65%.TestConditions:1.TheinputvoltageDuringtheFallTime,novibrationover50%ofeachoutputvoltageoccurs.結果判定:上升時間符合產品規格;下降時間不能有大于電壓值50%的振蕩現象.,TestWaveform(Rise),SBRiseWaveform,-12VRiseWaveform,FallWaveform(+5vsb),FallWaveform(-12v),TestWaveform(Fall),TurnonDelayTime開機延遲時間,Purpose:MeasurethetimebetweenACinputpowerontooutputvoltageriseto95%ofnormal.目的:量測交流輸入接通時到輸出電壓上升至95%時之延遲時間.TestConditions:1.Theinputvoltagefrequencymustbeunderanyconditionintherangeoftheproductspecification測試條件:1.輸入電壓以產品規格之全電壓頻率範圍2.Theoutputloadisfullloadonalloutputsatundertheproductspecification.2.輸出負載以產品規格之最大額定電流值3.ThetimeisfromtheappearingofACwaveformto95%outputvoltage.3.從交流波形出現至被指定輸出電壓(+5V)上升到95%這段時間.4.Dothetestincoldstateonetime,sodoinhotstateonetime.4.冷機和熱機各做一次.Resultlimit:Thestart-upTimecannotmorethan10secondorperastherequirementsofproductspecification.結果判定:開機延遲時間小于10秒或按產品規格書之規定(2000mS).,TurnonDelaywaveform,ON/OFF（Power-onTime)控制開/關,Purpose:Measuretheenabling/disablingvoltageforremoteON/OFF.目的:量測控制開/關的開關需求電壓.EnvironmentalConditions:Temperature:25;Humidity:65%環境條件:溫度25;濕度65%.TestConditions:1.TheinputvoltageNeutralwiretoground,PrimarytoSecond.2.測量L對GND,N對GND,一次側對二次側之漏電流.Resultlimit:Theleakagecurrentmustlessthan3.5mA結果判定:漏電流小于3.5mA.,GroundResistance接地阻抗,Purpose:Checkwhetherthecasegroundswell.目的:測量電源外殼接地是否良好TestConditions:1.Current40Adc,Resistance100m.測試條件:1.直流電流25A、阻抗100M,Open&Short(Abnormal)開路與短路,Purpose:Whenoneimportantcomponentisopenorshort,whatwillhappentotheSPS.目的:觀察當一個元件開路或短路時,POWER所發生的現象.TestCondition:1.Theprimaryinputvoltage&frequencyisagainstthemaximumandtheminimumoftherated.測試條件:1.初級部分輸入電壓以產品規格之最高、最低電壓及頻率.Thesecondaryinputvoltageisagainstthemediumoftherated.次級部分輸入電壓以產品規格之中心電壓及頻率.2.Theoutputloadisthemaximumloadofspecificationregulation.2.輸出負載以產品規格之最大額定電流值3.ThereisntovercurrentprotectivedeviceequipmentatACinputlineandthepowercanoffonlyafterstability.3.交流輸入不能有過流保護裝置及現象發生至穩定后才能切斷電源.Resultlimit:Aftereachtest,(IftheSPSisdamaged,shoulddoaHi-PotTest,andcanPass)結果判定:每次測試結束後(如果電源有損壞的現象發生,應該做一次高壓測試,測試結果要求可以通過),HarmonicCurrent諧波電流-EN61000-3-2,諧波電流是指那些為供電系統額定功率頻率整數倍的正弦電壓或正弦電流。它是由非線性電壓(或電流)特性設備引起的，如開關電源.諧波電流限定分為A，B，C，D四類標准，分別為：A類：平衡的三相設備(如音頻設備,電動工具等)B類：便攜式設備，非專用的電弧焊接設備.C類：照明設備(燈和燈具等)D類：功率小於或等於600W的個人計算機，顯示器等.開關電源屬於D類，其標准如下表:,EMIConduction&Radiation電磁兼容傳導和輻射,Purpose:ChecktheabilityofresistingtoEMIandtheoutwardinterferencedegree.目的:量測電源之電磁抗干擾能力及對外干擾程度.Testconditions:1.FCC15standard:Inputvoltage120Vac,Outputloadishalf&fullloadofproductspecification.測試條件:1.FCC15標準:輸入電壓為120Vac,輸出負載為產品規格的半載和滿載.2.EN55022standard:Inputvoltage220Vac,OutputloadisMaximumloadofproductspecification.2.EN55024標準:輸入電壓220Vac,輸出負載為產品規格的最大額定電流值.Resultlimits:Passtheabovetwostandards.結果判定:兩種標準都必須PASS,EMICriteriaEMI標准,Conduction-傳導Radiation-輻射,OtherSafetyTestItem其它安規測試項目,VoltageFluctuation/FlickerMeasurement電壓波動、閃爍-EN61000-3-3ElectrostaticDischarge靜電放電-EN61000-4-2ElectricalFastTransient/BurstMeasurement電快速脈沖群-EN61000-4-4SurgeMeasurement/PLT(PowerLightingTransient)浪湧-E