12V-220V Modified Sine-wave Inverter Circuit _ Simple Electronics

24/05/2015 12V220VModifiedSinewaveInverterCircuit|simpleelectronics

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2112V-220V Modified Sine-wave Inverter CircuitThisprojectisasimple12Vto220Vmodifiedsinewaveinverterusing555timerICandCD4017decadecounter.Thisinvertercandeliver300Wcontinuouspowerandaround500Wmaxpoweroutput(shortperiod).Averygoodinverterforuninterruptiblepowersupply(UPS).

inverterschematic

Thedriveroftheinverteristhe555timerand4017decadecounter.555timergeneratepulsesatafrequencyoffourtimesthedesiredoutputfrequency.Forexample,ifyouwanta60Hzoutput,thetimerfrequencymustbeequalto240Hz(4*60Hz).For50Hzoutput,200Hzistheoutputof555.YoucantrydifferentcombinationofR1,R2,andC1toobtainthedesiredfrequencybyusingthe555calculator.TheuseofLM7809regulatoristoprotectthe555and4017fromvoltagespikesandtransientsthatcaninfluencetheiroperationandstability.YoucanuseLM7808,LM7806,or7805 regulator or any regulator IC available at hand.But take note that theregulatoroutputmustbe5Vandabove tomakesure that youcandrive theMosfetQ1,andQ2.Thediagrambelow is thecomparisonofmodifiedandpuresinewave.BothhavethesamepeakvalueandRMSvalue.

Modifiedsinewavevspuresinewavesignal

PartList(60Hz,220V):R120kiloohms1/4WR220kiloohms1/4WR31.2kiloohms1/4WR4,R6560ohms1/4WR5,R75.6kiloohms1/4WC1100nFcapacitorC210uFelectrolyticcapacitorrated16VC3470uFelectrolyticcapacitorrated16VC4100nFcapacitorQ1,Q2IRFZ44NorsimilarNchannelpowerMosfetX'former10V0V10Vto220Vtransformer(minimum500VAifrequired)LM7809ICregulatorLM555timerICCD4017b5stageJohnsoncounter12V12Vleadacidbattery

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CD4017bpins

IRFZ44Npins

555ICpins

LM7809,LM7808,LM7806,orLM7805pins

Note:Donottrybuildingtheprojectifyoudon'thaveanybackgroundinelectricalorelectronics.220Voutputisdangerousandfatalwhentouched,thusexercisesafetyalways.Youcancheckalsothe12Vto120VinverterversionifyouarelivinginareaswherethemainSClineis120V50Hzor60Hz.

LABELS:SIMPLEPOWERINVERTER

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October28,2011at7:59PMAUTOMOBILE

Can invertercharge theirbatteryautomatically,Assuming thebattery is12v100ah? Ifyes,what is theprocedure.

Reply

October28,2011at10:56PMDHgm

Youcanchargeotherbatteriesbutnottheonesupplyingpowertotheinverter,

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November10,2011at3:57AMpeads92470

Can you modify the 12220V MSW inverter to produce 110VAC? That would much more useful toAmericanmainstream.

Thanks

Reply

November10,2011at6:33AMDHgm

to:peads92470Illmodifyitforyoubutfornow,ifyouwanttohavea12Vto120Vinverter,justreplacethetransformerto120V/10Vcentertapandusethecircuitabove.



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tnx!

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November17,2011at2:46PMfemmy

whatkindofapplianceshouldonerunusingdisinvertercosimadeoneusingdabovemethodbutwhenipluggedinmysolderingirononit,soundscomesoutfrommysolderingiron.

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November18,2011at3:24AMDHgm

Idon'tknowwhatistheproblembutisuspectitsthefrequencyoutputoftheinverter.TryreplacingR1with50kiloohmspotentiometerandadjustitsotheoutputis60Hzor50Hz.

Reply

November18,2011at6:09AMfemmy

howwill i knowwhen d frequency is on 50Hz or 60Hz,i don't have any instrument apart from digitalmultimeterandsolderingiron.caniuse100kiloohmpotentiometercosihaveonealready.andhowdoiconnectitsinceithasthreelegs?

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February1,2013at9:08PMroger8

youcandownloadaoscillascopesoundcardtoyourpcbutyouneedtoelaborateyourowntestprobeyoucangoogleitanitactslikeavoltajedevider.regards

November18,2011at11:05PMDHgm

Yeahitskindahardtotellthefrequencyifyoudonthaveanyoscilloscopeoranydevicethatcanmeasurefrequency.IsuggestthatmakesurethevaluesofR1,R2,andC1arehaving1%(thelowerthebetter)toleranceormeasureR1,R2,andC2andmakesurethatthevaluesareequalofveryneartothedesignabove.Thatisagoodwayofmakingsuretheoutputisnear60Hz.

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November19,2011at1:57PMfemmy

thanks,caniuse100kiloohmpotentiometerforR1

Reply

November28,2011at8:33AMAnonymous

discircuit fails topowermy laptop,tvwitmy12volt75AHbattery.donly tin it powers is justmy60wattbulb,myceilingfanranslowlywitnoisecomingfromit.anysolutionpls?

Reply

February1,2013at9:13PMroger8

youneedmoreparallelmosefets like4oneachsidebutyouneed togetabigger trafo likeamicrowaveoventrafo.Regards.

June24,2013at4:11AMEngislamnagiub

Howcaniraisethisinfertercapacityof300to1000nkwPleasereply

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July23,2013at11:30AMAnonymous

caniuse12012/600vaupstrafo&irf540nmosfetfordaboveckt???

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July23,2013at11:36AMAnonymous

isthisapwminverter?

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May6,2014at3:27AMKarthickSaran

Mycircuitisnotworkingon10v0v10vtransformerlowpoweriscomingonthis.plshelpmegivemeanysolution?

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May6,2014at8:44AMKarthickSaran

Only100viscominganyonehelpmepls

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September26,2014at4:58AMAnonymous

Iamgoingtopresentthiscircuit,Ineedsomeonewhowilltellmethefunctionofthedecadecounterandthemosfetsonthiscircuit.please

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October9,2014at7:53AMAnonymous

decadecounterisfortheocsilation,andthemosfetswilldrivetheprimarysidesofatransformerinordertoproducealternatingvoltage(workasaswitch).

October9,2014at7:50AMAnonymous

canIuse909to220V

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January6,2015at7:26AMMuhammadAdnan

Aoa.IammakingitonPCBandIhave12012to220v,5Amptransformer.ifiuseitpleasetellmethatwhosecomponentsvalueswillchange?

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12V-220V Modified Sine-wave Inverter Circuit _ Simple Electronics

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