HP-6236A-6237A-Manual-SNprefix-1507A 电路图.pdf

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1、HP Archive This vintage Hewlett Packard document was preserved and distributed by Pleasevisituson the web! Scanned by on-line curator: Tony Gerbic * For FREE Distribution Only * RadioFans.CN 收音机爱 好者资料库 HPPart No. 5950-1737 TRIPLEOUTPUT POWERSUPPLY MODELS6236AAND6237A OPERATINGANDSERVICEMANUALFOR; MO

2、DEL 6236A, SERIALS 1507A-00141ANDABOVE MODEL 6237A, SERIALS 1507A-00101ANDABOVE *For Serials above 1507A-00141or1507A-00101, a change page may be included. Hewlett-Packard Printed:February 1975 RadioFans.CN 收音机爱 好者资料库 tionsin additiolatothestandard104-127Vac47-63Hz unitandisfurnishedwithapermanently

3、attached5-foot 3-wiregrounding-typelinecord. 1-8SPECIFICATIONS 1-9Table1-1listsdetailedspecificationsforthepower supply. SECTION I GENERALINFORMATION I INTRODUCTION1-1 1-2This manual coverstwotripleoutputpowersupply models,the6236Aandthe6237A. Both models arecom- pactgeneralpurposebenchsuppliesthata

4、reparticularly useful forpoweringdevelopmentalICcircuits,bothlinear anddigital.Unlessonemodelortheotherisspecifically identified,allinformationinthismanual appliestoboth the6236Aandthe6237A. 1-10OPTIONS -CAUTION- Carefully read SectionsIIandIIIofthis manual beforeattemptingto operate the powersupply

5、. 1-11Optionsarefactorymodificationsofastandard instrumentthatarerequestedbythecustomer.Thefollow- ingoptionsare availablefortheinstrumentcoveredbythis manual. OPTION NO.OESCRIPTION -CAUTION- 1-13ACCESSORIES Theuser canconvertaninstrumentfromoneline voltage optiontoanotherby followingtheinstructions

6、inPara- graph 3-4. 1-12 Beforethesupplyisshippedfromthefactory,an internal line voltageselectorswitchissetandtheproper fuse installedfortheline voltage specifiedontheorder.A labelontherearheatsink identifies this line voltageoption. InputPower:87-106Vac,47-63Hz, single-phase. InputPower:191-233Vac,4

7、7-63Hz, single-phase. InputPower:208-250Vac,47-63Hz, single-phase. 220 240 100 Beforeapplyingpowertothe supply, make cer- tainthatits line voltage selector switch (S3)is setforthe line voltage to beused.(SeeCAUTION noticein Paragraph3-2foradditionalinformation on S3). 1-5Allcontrols,meters,andoutput

8、terminalsare loca- tedonthefrontpanel.Twosingle-turnpotentiometerscon- trolthe+6V(or+18V)and20Voutputs.Athree-position meterswitch selectsoneofthesupplies for displayofits voltageandcurrentontwodual-range meters.The+6V (or +18V)and20Voutputsshare acommonoutputter- minal whichisisolatedfromchassisgro

9、und. 1-3DESCRIPTION 1-4Both models have a dualoutputof0to20volts at0to0.5amps.Thevoltagesofthetwo20-voltoutputs areadjustedby asinglefront-panelcontrolandtrackone anotherwithin1%.The+20Vand-20Voutputscanalso be usedinseries for a single 0to40V0.5Aoutput.Thethird outputdiffersinthetwomodelsandis0to+6

10、 voltsatup to2.5ampsinthe6236Aand0to+18voltsat0to1amp inthe6237A/ 1-6Alloutputsareprotectedagainstoverloadorshort- circuitdamage.The+18Voutputinthe6237Aandthe 20Voutputsinbothmodels areprotectedbycircuits which limitoutputcurrentto110%ofits nominalmaximum. The overloadprotectioncircuitforthe+6Voutpu

11、tinthe 6236Ahas acurrentfoldbackcharacteristicwhichreduces theoutputcurrentas an overload increases until only 1A flowsthroughashortcircuit.Forthisoutput,thecurrent limitdependsontheoutputterminalvoltageandvaries linearlybetween2.75Aat6Vand1Aatzerovolts. 1-7Theinstrumentisavailableinthreeline voltag

12、e op- 1-14Theaccessories listedbelowmaybeorderedfrom yourlocalHewlett-Packardfield salesofficeeither 1-1 RadioFans.CN 收音机爱 好者资料库 withthepowersupplyorseparately.(Refertothelistat therearofthemanualforaddresses.) HPPARTNO. 14513A 14523A DESCRIPTION RackMountingKitformountingone 31/2highsupplyin astand

13、ard19 relay rack. RackMountingKitformountingtwo 31/2highsuppliessidebysideina standard19relay rack. ture.Thefirsttwodigitsindicatetheyear(10=1970,11= 1971,etc.)thesecondtwodigitsindicatetheweek,andthe letterAdesignatestheU.S.A. asthecountryofmanufac- ture.Thesecondpartisthepowersupplyserialnumber;a

14、differentsequentialnumberisassignedtoeachpowersup- ply,startingwith00101. 1-17Iftheserialnumberonyourinstrumentdoesnot agreewiththoseonthetitlepageofthemanual,Change SheetssuppliedwiththemanualorManual Backdating Changesdefinethedifferencebetweenyourinstrumentand theinstrumentdescribedbythismanual.

15、1-15INSTRUMENT ANDMANUAL IDENTI FICATION 1-18ORDERINGADDITIONALMANUALS 1-16Hewlett-Packardpowersuppliesareidentifiedbya twopartserialnumber.Thefirstpartistheserialnumber prefic, anumber-lettercombinationthatdenotesthedate ofasignificantdesignchangeandthecountryofmanufac- 1-19Onemanualisshippedwithea

16、chpowersupply. Additionalmanualsmaybepurchasedfromyourlocal Hew- lett-Packard fieldoffice(seethelistattherearofthismanual foraddresses).Specifythemodelnumber,serialnumber prefix,andtheHPPartnumberprovidedonthetitlepage. NOTE Table1-1.Specifications,Models6236Aand6237A TRACKING: The+20Vand-20Voutputs

17、trackwithin1%. Specificationsapplytobothmodels unless otherwise indicated. INPUT POWER: StandardOption:104:127Vac(120Vacnominal),47- 63Hz,single-phase, 112W,140VA(Otherline voltage optionsare listed in Paragraph 1-11.) DCOUTPUTANDOVERLOADPROTECTION: oto20VOutputs:Maximumratedoutputcurrentis 0.5A.Sho

18、rtcircuitoutputcurrentis0.55A5%anda fixedcurrentlimitcircuitlimitstheoutputofeachsup- plytothismaximumatanyoutputvoltagesetting.Unbal- ancedloadswithincurrentrating arepermitted. Model6236A oto+6VOutput:Maximumratedoutputcurrentis2.5A at6V.Themaximumavailableoutputcurrentdecreases withtheoutputvolta

19、gesetting.Acurrentfoldbackcurrent limitstheoutputto2.75A5%at6 volts and,withdecreasing voltage,reducesthecurrentlimitlinearlyto1A 15%atzero volts(shortcircuited). Model6237A oto+18VOutput:Maximumratedoutputcurrentis 1.0A.Shortcircuitoutputcurrentis1.1 A 5%andafixed currentlimitcircuitlimitstheoutput

20、tothismaximumat anyoutputvoltagesetting. 1-2 LOADEFFECT(LoadRegulation): AllOutputs:Lessthan0.01 % plus2mVfora fullload tonoloadchangeinoutputcurrent. SOURCEEFFECT(LineRegulation): AllOutputs:Lessthan0.01%plus2mVforanyline voltagechangewithinrating. PARD(RippleandNoise): AllOutputs:Lessthan0.35mVrms

21、and1.5mVp-p (20Hito20MHz). DRIFT(Stability): AllOutputs:Lessthan0.1 % plus5mV(0to20Hz) during8hoursatconstantline,load,andambientafteran initialwarm-uptimeof30minutes. LOADTRANSIENTRECOVERYTIME: AllOutputs:Lessthan50psecforoutputrecoveryto within15mVofnominaloutputvoltagefollowinga load changefromfu

22、llloadtohalf load (or vice versa). OUTPUTVOLTAGEOVERSHOOT: AllOutputs:Duringturn-onorturn-offofacpower, outputplusovershootwillnotexceed1V iftheoutput controlissetforlessthan1V.Ifthecontrolissetfor1V orhigher,thereisnoovershoot. Table 1-1. Specifications, Models6236Aand6237A(Continued) TEMPERATURECO

23、EFFICIENT: AllOutputs:Lessthan 0.02% plus 1mVvoltage change per degree Celsius over the operatingrangefrom0to40C after 30 minutes warm-up. *OUTPUTIMPEDANCE(typical): oto+20VOutput:0.5mnplus 1.5/lH oto-20VOutput:0.5mnplus 1.5/lH Model6236A oto+6VOutput:0.3mnplus 1/lH Model6237A oto+18VOutput:0.3nplus

24、 1.5/lH * Operating characteristics listedastypicalareprovidedfor the usersinformationonlyandarenotwarranteed specifi- cations. RESOLUTION: (Minimumoutputvoltage change obtainable usingfront panel voltagecontrol) oto20VOutputs: 70mV Model6236A oto+6VOutput:20mV Model6237A oto+18VOutput:70mV 1-3 TEMP

25、ERATURERANGES: Operating: 0to+40C ambient.Athigher temperatures, outputcurrentisderated linearlyto50%at 55C. Storage:-40Cto+75C. METER RANGES: oto+20VOutput:0-25V,O-0.6A oto-20VOutput:0-25V,O-0.6A Model6236A oto+6VOutput:0-7V,0-3A Model6237A oto+18VOutput:0-21V, 0-1.2A METERACCURACY: 4%offullscale D

26、IMENSIONS: 315/32H x87/32W x129/16D (88mm Hx208mm Wx319mm D) WEIGHT: 9.5 Ib (4.3kg) SECTION II INSTALLATION 2-1INITIALINSPECTION 2-2Beforeshipment,thisinstrumentwasinspectedand foundtobe freeofmechanicalandelectricaldefects.As soonastheinstrumentisunpacked,inspectforanydamage thatmayhaveoccurredintr

27、ansit.Save allpackingmaterials untiltheinspectioniscompleted.Ifdamageisfound,file claimwithcarrierimmediately.TheHewlett-PackardSales andServiceofficeshouldbenotifiedassoonas possible. 2-3Mechanical Check 2-4Thischeckshouldconfirmthattherearenobroken knobsorconnectors,thatthecabinetandpanel surfaces

28、 are freeofdentsandscratches,andthatthemeterisnotscratch- edorcracked. NOTE:ACCESSORYKITSFOR19INCH RACKIIOUNTIIGAIlE: HIIIOOEL1451FORCIlESUIl.Y HPlOlELl4523A RJlTlI09.PPLS $10VIEW 2-5Electrical Check Figure 2-1. Outline Diagram 2-6Theinstrumentshouldbecheckedagainstits elec- tricalspecifications.Sec

29、tionVincludes anin-cabinetper- formancechecktoverifyproperinstrumentoperation. 2-7INSTALLATIONDATA 2-8Theinstrumentisshippedreadyforbenchopera- tion.Beforeapplyingpowertotheinstrument,seethe CAUTIONnoticein Paragraph 3-2. 2-9Location 2-11Outline Diagram 2-12Figure2-1illustratestheoutlineshapeanddime

30、n- sionsofthissupply. Figure 2-2. RackMounting,OneUnit Figure 2-3. RackMounting,TwoUnits Rack Mounting 2-10Thisinstrumentisaircooled.Sufficientspace shouldbeallottedsothata freeflowofcoolingaircan reachtherearoftheinstrumentwhenitisinoperation.It shouldbeusedinanareawheretheambienttemperature doesno

31、texceed40C(upto55Cwithderating). 2-13 2-14Thisinstrumentmayberackmountedinastandard 19-inchrackpaneleitherby itselforalongside a similarunit. Figures 2-2and2-3showthecomponentsoftherackmount- ing kits availableforthispowersupply.Orderinginforma- tionforrackmountingaccessoriesisgiven in Paragraph 1-1

32、3. 2-1 2-15InputPower Requirements 2-16Dependingontheline voltageoptionordered,the supplyisreadytobeoperatedfromoneofthepowersources listed inTable2-1.Theinputvoltage range,andtheinput currentandpowerathigh line voltageandfull loadislisted foreachoption.A labelontherearheatsinkidentifiesthe line vol

33、tageoptionofyoursupply.Alloptionsofthis modeloperatefroma47-63Hzsingle-phase line. 2-17Ifdesired,theusercaneasilyconverttheunitfrom anyoftheseoptionstoanotherby followingtheinstructions in Paragraph 3-4. Aunitisconvertedbyresettingan internal line voltageselectorswitch,replacingthefuse,andchanging t

34、heline voltage tag. 2-20Topreservetheprotectionfeaturewhenoperating theinstrumentfromatwo-contactoutlet,use athree-prong totwo-prongadapter(ifpermittedby local regulations) and connectthegreen leadontheadaptertoground. 2-21Model6236Aand6237A supplies areequipped atthefactorywithapowercordplugappropr

35、iateforthe userslocation.Figure 2-4 illustratesthestandardconfigu- rationsofpowercordplugs used by HP. Above each draw- ingistheHPoptionnumberforthatconfigurationofpower connectorpins. Below each drawingistheHPpartnumber for areplacementpowercordequippedwitha plugofthat configuration.Notifytheneares

36、tHP SalesandService Office iftheappropriatepowercordisnotincludedwith theinstrument. 2-22RepackagingforShipment -CAUTION- Ifthesupplymightpossibly have been convertedtoa line voltageoptionother than the onemarkedon itsidentifying labelwithoutbeing relabeledinsome way, check the settingofthe line vol

37、tage selector switchandthe fuse rating beforeapplying power.(SeeCAUTIONinParagraph 3-2) 2-23Toinsure safeshipmentoftheinstrument,itis recommendedthatthepackage designedfortheinstrument be used.Theoriginal packaging materialisreusable. If it isnotavailable,contactyourlocal Hewlett-Packard field offic

38、etoobtainthematerials. This office will also furnish theaddressofthenearestservice officetowhichtheinstru- mentcanbeshippedandprovidetheAuthorizedReturn label necessarytoexpeditethehandlingofyourinstrument return.Besuretoattacha tagtotheinstrumentwhich specifiestheowner,modelnumber,full serialnumber

39、,and servicerequired,ora briefdescriptionofthetrouble. 2-18Power Cable 8120-0050 OPTION903 8120-1691 OPTION902 8120-1369 OPTION901 Figure 2-4.PowerCordConfigurations 8120-1351 OPTION900 2-19Toprotectoperatingpersonnel,theNational ElectricalManufacturersAssociation (NEMA)recommends thattheinstrumentp

40、anelandcabinetbegrounded.This instrumentisequippedwithathreeconductorpowercable. Thethirdconductoristhegroundconductorandwhenthe cableispluggedintoanappropriatereceptacle,theinstru- mentisgrounded.Theoffsetpinonthepowercablethree- prongconnectoristhegroundconnection.Innoevent shallthisinstrumentbeop

41、eratedwithoutanadequatecabi netgroundconnection. Table2-1.InputPowerRequirements OptionLine Voltage Range InputCurrentInputPower 100(100Vac)87-106Vac 1.3A140VA Standard(120Vac)104-127Vac 1.1A140VA 220(220Vac)191-233Vac 0.6A140VA 240(240Vac)208-250Vac 0.55A140VA 2-2 SECTIONIII OPERATING INSTRUCTIONS

42、3-1 m=:OU/2: If_-.1 Figure 3-1. Controls and Indicators TURN-ON CHECKOUT PROCEDURE a.ConnectlinecordtopowersourceandturnLINE switchG)on.LINE ONindicatorwill light. b.SetMETERswitchtothe+6Vpositionand,with noloadconnected,vary+6VVOLTAGE-controlover its rangeandcheckthatthevoltmeterrespondstothecon- t

43、rolsettingandtheammeterindicateszero. c.Setthe+6VVOLTAGEcontrolfora6-voltmeter indicationandshortthe+6VoutputterminaltoCOM (common)terminalwithaninsulatedtestlead.The ammetershouldindicateashort-circuitoutputcurrentof approximately1.0A(1.1Ainthe6237A).Removethe shortfromtheoutputterminals. d.SettheM

44、ETERswitchtothe+20Vpositionand, withnoloadconnected,vary20VVOLTAGEcontrol over its rangeandcheckthatthevoltmeterrespondstothe controlsettingandtheammeterindicateszero. 3-2ThefollowingstepsdescribetheuseoftheModel 6236Aor6237Afrontpanelcontrolsandindicatorsillus- tratedin Figure 3-1andserve as abrief

45、checkthatthesup- plyisoperational.Thischeckoutprocedureorthemore detailedperformancetestofParagraph 5-6shouldbe follow- edwhentheinstrumentisreceivedandbeforeitisconnect- edtoanyloadequipment.Proceedtothemoredetailed proceduresbeginning in Paragraph 5-6 ifanydifficulties areencountered. -CAUTION- e.

46、Setthe20VVOLTAGEcontrolfora20-voltmeter indicationandshortthe+20Voutputterminaltothecom- monterminalwithaninsulatedtestlead.Theammeter shouldindicateashort-circuitoutputcurrentofO.55A 5%.Removetheshortfromtheoutputterminals. f.Repeatsteps(d)and(e),butsubstitutethe-20V positionoftheMETERswitchandthe-

47、20Voutputter- minal. Figure 3-2. Line Voltage Selector (Set for120Vac) Before applying power to the supply, make certain that its line voltage selector switch(53)issetfor the line voltage to be used. This switchismounted on the circuit board behind the voltmeter andis visible through the perforation

48、s in the top cover. The positionsofthe two white marks on the switch indicate the switch setting(seeFigure3-2).Ifthe switch setting doesnotcorrespond to the intended power source, proceed toParagraph3-4before applying power. .r-240-, (r-220-, 0_0 L-,OO-.J -120-J t FRONT OF SUPPLY NOTE For the Model

49、6237A, substitute. +18V for +6V in the following steps. 3-1 3-3Ifthisbriefcheckoutprocedureorlateruseofthe supplyreveals a possiblemalfunction,seeSectionVofthis manualfordetailedtest,troubleshooting,andadjustment procedures. 3-4LINEVOLTAGEOPTION CONVERSION 3-5Toconvertthesupplyfromoneline voltageoption toanother,thefollowingthreestepsare necessary: 1.Aftermakingcertainthatthelinecordisdiscon- nectedfromasourceofpower,removethetopcoverfrom thesupplyand.setthetwosectionsoftheli:1evoltage selec- torswitchforthedesiredline voltage (see Figure 3-2),