开关电源技术规格书

[鍵入文字]开关电源技术规格书SwitchingPowerSupplySpecification型号Model：1305AC拟制(Editor)：段家贵审核(Verifier)：批准(Approver)：版本(Edition)：13051、总则Introduction该款电源参考intel提出的ATX12VV2.31标准设计制造，额定输出功率90W。。ThePowerSupplywasdesignedreferenceIntelPowerSupplyDesignGuideATX12V2.31.Ratedoutputtotalpoweris90W.2、电气特性Electrical2.1、输入特性DCinput参数Parameter最小值Minimum典型值Nominal最大值Maximum单位UnitVin11.41212.6VrmsVinFrequency------HzIin--8--Arms2.2、直流精度DCVoltageRegulationPage2of5输出output最小值Min.典型值Nom.最大值Max范围Rang+3.3VDC+3.14V+3.3V+3.47V±5%+5VDC+4.75V+5.00V+5.25V±5%+12V1DC+11.40V+12.00V+12.6V±5%+12V2DC+11.40V+12.00V+12.6V±5%-12VDC-10.80V-12.00V-13.20V±10%+5VSBDC+4.75V+5.00V+5.25V±5%注：当+12V处于峰值电流负载时，输出电压范围为±10%。Note:At+12VDCpeakloading,regulationatthe+12Voutputscangoto±10%.2.3、直流功率分布TypicalPowerDistribution负载Loading直流输出DCOUTPUT+12V1+12V2+5V+3.3V-12V+5VSB最小值Min.0.1A--0.1A0.1A0A0A最大值Max.5A--3A3A0.05A2A峰值Peak6A-----------最大组合功率Combined70W20W0.6W10W90W2.4、噪音与纹波OutputRippleNoise直流输出output+5V+12V1+12V2+3.3V-12V+5VSB噪音与纹波(mVp-p)Max.RippleandNoise50mV120mV120mV50mV120mV50mVNoise杂讯100mV200mV200mV100mV200mV100mV注意：1、噪声与纹波的测试带宽为10Hz～20MHz；2、在测试噪音与纹波期间，用一个0.1UF瓷片电容和10UF的电解电容并接在输出端上。Note:1、Rippleandnoisearedefinedasperiodicorrandomsignalsoverafrequencybandof10Hzto20MHz.2、Measurementsshallbemadewithanoscilloscopewith20MHzofbandwidth.Outputsshouldbebypassedattheconnectorwitha0.1µFceramicdiskcapacitoranda10µFelectrolyticcapacitortosimulatesystemloading.2.5、电源效率Efficiency在25℃下，直流输入11.4V-12.6V、Intel规定的满负载条件下，电源效率不小于80%。Theefficiencyofthepowersupplyshouldbegreaterthanorequalto80%,atnominalinputvoltageofDC11.4V-12.6Vinput,undertheloadconditionsdefinedintheformfactorspecificsectionsofintelPSDG,at25℃。Page3of52.6、电源过冲Overshoot在开关DC电源或开关PS_ON#时引起的直流输出电压过冲应小于正常输出的10%，并且不会产生反极性的电压。Theoutputvoltageovershootupontheapplicationorremovaloftheinputvoltage,ortheassertion/de-assertionofPS_ON#,undertheconditionsspecifiedinparagraph2.3,shallbelessthan10%abovethenominalvoltage.Novoltageofoppositepolarityshallbepresentonanyoutputduringturn-onorturn-off.2.7、保护功能OutputProtection2.8.1.过功率保护OverPowerProtection过功率后，电压主输出将终止。保护动作的功率120%～150%额定功率。AfterOPP,themainDCoutputshouldshutdown.TheOPPis120%～150%ratingpower.2.8.2.过压保护OverVoltageProtection电源具有自锁性过压保护功能，保护点如下表：Thesupplyshallprovidelatch-modeovervoltageprotectionasdefinedinfollowingtable：输出OUTPUT保护动作电压OVPVoltage最小值Min.典型值Nom.最大值Max.+5VDC5.74V6.3V7.0V+12V1DC13.4V15.0V15.6V+12V2DC------+3.3VDC3.76V4.2V4.3V2.8.3.短路保护ShortCircuitProtection主电源每路输出端对地短路时，电源都能自动保护锁定；主输出与5VSB短路不损坏电源；主电源开启时，+5VSB输出端对地短路，电源能自动保护；短路解除后可自动恢复。Thepowersupplyshallshutdownandlatchoffforshortingthe+3.3VDC,+5VDC,+12V1DCor+12V2DCrails.Shortsbetweenmainoutputrailsand+5VSBshallnotcauseanydamagetothepowersupply.Thepowersupplymayshutdownwhena+5VSBshortcircuiteventoccurs,andrecoverautomaticallywithouttrouble.2.8.4.空载运转No-loadSituation电源在无负载运转时，对电源不会造成伤害。NodamageorhazardousconditionshouldoccurwithalltheDCoutputconnectorsdisconnectedfromtheload.2.8、PS_0N#信号和PWR_OK信号PS_ON#Signal&PWR_OKSignal2.9.1.PS_ON#PS_ON#信号是TTL兼容信号,主板通过PS_ON#信号来控制电源的开关。当PS_ON#信号是低电平时，电源开机，当PS_ON#信号是高电平时，电源关机。PS_ON#isanactive-low,TTL-compatiblesignalthatallowsamotherboardtoremotelycontrolthepowersupplyinconjunctionwithfeaturessuchassofton/off,WakeonLAN*,orwake-on-modem.WhenPS_ON#ispulledtoTTLlow,thepowersupplyshouldturnonthefourmainDCoutputrails:+12VDC,+5VDC,+3.3VDC,and-12VDC.WhenPS_ON#ispulledtoTTLhighoropen-circuited,theDCoutputrailsshouldnotdelivercurrentandshouldbeheldatzeropotentialwithrespecttoPage4of5ground.参数Parameter最小值Min.最大值Max.VIL,输入低电平电压0.0V0.8VIIL,输入低电平电流(Vin=0.4V)-1.6mAVIH,输入高电平电压(Iin=-200µA)2.0V2.9.2.PWR_OKPWR_OK信号是一个5V的TTL信号。开机后在各路直流输出电压达到最低检测电平时,经过100-500mS的延时,PWR_OK信号为高电平;当有直流输出低于最低检测电平时,PWR_OK信号为低电平。PWR_OKisa“powergood”signal,TTL-compatiblesignal.Thissignalshouldbeassertedhighbythepowersupplytoindicatethatthe+12VDC,+5VDC,and+3.3VDCoutputsarewithintheregulationthresholdsandthatsufficientmainsenergyisstoredbytheconvertertoguaranteecontinuouspoweroperationwithinspecificationforatleastthedurationspecified.Conversely,PWR_OKshouldbede-assertedtoalowstatewhenanyofthe+12VDC,+5VDC,or+3.3VDCoutputvoltagesfallsbelowitsundervoltagethreshold,orwhenmainspowerhasbeenremovedforatimesufficientlylongsuchthatpowersupplyoperationcannotbeguaranteed.TheelectricalandtimingcharacteristicsofthePWR_OKsignalaregiveninfollowingtableandnextparagraphfigure.逻辑低电平LogiclevellowPWR_OK0.4Vwhilesinking4mA逻辑高电平Logiclevelhigh2.4VPWR_OK5Voutputwhilesourcing200µA高态阻抗High-stateoutputimpedance1KΩ±5%2.9、时间序列PowerSupplyTimingPower-onTime（电源启动时间）T1500msRiseTime（电压上升时间）0.1ms≤T2≤20msPWR_OKdelay（P.G.延时时间）100msT3500msPWR_OKrisetime（P.G.上升时间）T4≤10msDClosstoPWR_OKhold-uptime（DC断电维持时间）T5≥16msPower-downwarning（电源关机告警时间）T6≥1ms3、机械特性Mechanical3.1、输出连接器外形ConnectorsPage5of5PCI-Econnnector+12Vconnector+12VDCCOMCOM+5VDC-12V+3.3VCOMCOMPS/ONCOMCOM+3.3V+3.3VCOM+5VCOM+5VCOM+5VCOM+5V+5VP.G+5VSB+12V+12V+3.3VPIN1PIN4PIN4PIN1PIN1PIN13+5VDCCOMCOM+12VDC主输出连接器Mainpowerconnector外围设备连接器PeripheralConnector软盘驱动器连接器FloppyDriveConnectorSATA连接器SATAconnector+3.3VDCCOM+5