Easy Homemade 50 watt Power Inverter UPS 12v to 220v

Easy Homemade 50 watt Power Inverter

For making your own DIY 50 watt 12 V DC to 220 V AC Power Inverter UPS

Easy Homemade 50 watt Power Inverter (UPS Uninterruptible power supply) is a very useful device which can convert Low voltage from a DC source to high voltage AC. The most common power inverter is 12V to 240V inverter. Perhaps that is because 12V batteries are common.

This type of power inverter usually draws current from a DC battery.  This battery should be able to provide a high flow of electric current. Normally lead acid batteries can server this purpose well. This current is then converted to 240V square wave alternative current so that we may empower those electric appliances which work on 240V instead of 12V.

Inverter falls in the category of expensive devices so many people don’t buy them even they need them. What if I tell you how to build an inverter (UPS Uninterruptible power supply) yourself?

There are a lot of inverter circuit diagrams available online; some of them are complex and others are low performance. I designed my own inverter circuit which is comparable to any professionally made inverter but still is simple enough for you to try.

500 Watt 12DC to 220 VAC Power Inverter (UPS) Construction in Urdu

500 Watt 12 VDC to 220 VAC Power Inverter (UPS) uninterruptible power supply (English)

Make Your Own 50 to 500 watt Inverter UPS

Watch Video Easy Homemade 50 watt Power Inverter with complete instruction .

Here is the inverter circuit diagram:


Inverter Circuit Diagram
Inverter Circuit Diagram

Download Inverter Circuit Diagram

You will need the following parts.

  • 22 gauge 2, meter copper wire (for winding)
  • 2 Transistors 1047
  • 2 Heat sinks to fit power transistors
  • Some wiring wire (for connections)
  • A wiro-board (To build circuit on)
  • A 12V battery of 12V power supply for testing purposes
  • 1 Resisters 1 k


“Easy Homemade 50 watt Power Inverter” First of all you have to make some changes in transformer. If u are using 100 watt transformer then take 18 to 22 gauge copper wire and on the one side of transformer’s core make five turn and put a point on it, and turn this point, and again turn the wire five times on the same direction. In this way u get three terminals. If u r connect the transformer to 220 V power supply then it gives 1.5 V on both terminals. Now put transistor D1047 on the palm of your hand and turn it such a way that number appears your way. Now you will see three points. The point on your left side is known as (B) Base, middle one is E and the right one is collector(C). (These are the information only for D1047)

connect the E of both sides of transistors with the outer terminal of secondary coil, after that connect the both outer terminals of the third coil with the base of the both heat sinks of transistor. then connect the collectors of both side by wires n then connect the 500 ohm resistor on emitter and resistor on either side. Now connect the middle terminal of primary coil by one to two ft long wire and clip (crocodile) it and attach this terminal always by the positive terminal, and with the negative terminal of battery connect the both collectors of transistor.

After that the central point of the third coil and a wire attach it with emitter to connect using a heavy ampere switch between both terminals of the Inverter primary coil to apply a capacitor which will prevent the current from the sparking. inverter will switch on as soon as starting to work.


Easy Homemade 50 watt Power Inverter With both the terminals of battery connect the positive and negative wires to its terminals positive to positive and negative to negative and then open the switch, slightly vibration starts in the inverter as switch is open. Now you can run it into 1 to 500 watt load.

500 Watt 12DC to 220 VAC Power Inverter (UPS) Construction in Urdu New

This inverter also can charge the batteries, you just need to( on and off) the switch.


You will need to switch off for battery charging and connect the primary coil indirectly with 220 V of power supply, after that battery will start charging. To converts it into UPS you needs only one relay. These relays are AC 220 V and 4.4 terminals.

For online help visit Pak Science and technology Forum

Here is the inverter circuit diagram for battery charging :

Download Inverter Circuit Diagram

Here is the inverter circuit diagram for Inverter operation :

Power Inverter Wattage Chart

inverters Transformer voltages (Input)
Transformer Amps Transformer watt No of Transistors D1047
50 watt inverter 12 V 4 A 50 W 2
100 watt inverter 12 V 10 A 100 W 4 to 6
300 watt inverter 12 V 25 A 300 W 6 to 8
500 watt inverter 12 V 40 A 500 W 8 to 10
1000 watt inverter 24 V 45 A 1000 W 20 to 26
3000 watt inverter 24 V 125 A 3000 W 40 to 50
5000 watt inverter 48 V 105 A 5000 W 60 to 70
Note. table shows that requirement of D1047 transistors for different power inverter wattage

Discussions about PSC Power Inverters 12 VDC to 220 VAC UPS, you can find problems, troubleshooting and construction help Please visit Power Inverters (UPS)12 VDC to 220″ Online Support

power inverter ups

power inverter Urdu New

Related Articles:

Abdul Rauf

Teacher, Innovator, Love to create, explore new ways to view & imagine things and then make them real


  • i could not understand secondary coil. When transformer was taken, it has already a secondary coil. Then we cover up coiling with a paper, and create 03 further secondary coils. End main Iski wiring samjh nahi aae kuch. video sahi nahi banai gai. pata to chalay k konse coil se kya connect ker rahay hain.

  • 20 Feb 08:2pm sir which turns sutible for 500 watt transformer primary and secondary coils pleas sir send me

  • 12feb 8: 10 pm @ abdulrauf Brother
    500 watt ka power inverter ka transformer ka primary aur secondary coil ka turns ka tadad rasend kara please muja aur website pa nahi malta aur core case ka size Bee pleas sirf Yeh data rasend kara please

  • 12 feb 2016 12:30pm posted by mushtaq ali
    @abdulrauf Brother ma 500 watt power inverter ka electric transformer bananah cahta hu us ka primary coil ka turns ke tadad aur rewinding wire guage number astahra secondary coil ke turns ka tadad aur rewinding wire guage number aur rewinding core case ka size rasend kari pleas mera email ma2604403@gmail.com jaldi beja adulrauf bro

  • @abdulrauf bro ma 500 watt ke power inverter ka transformer bananah chahta hu tu Muja us ka primary aur secondary coils ka wire guage numbers aur turns primary aur secondary coils dunk ke aur winding coils ka core case ka size be batai pleas jaldi

  • @abdulrauf bi ma 500 watt ke power inverter ka transformer banah cahta hu pleas us ka primary aur secondary coils ka wire guage number aur truns dono coils ke aur case core ka lambai aur chorai size be bataie jalde

  • Aur winding ka core case ka size ka Lambo aur choti bi batai

  • Abdulrauf bi ma 500 watt ka power inverter ka transformer banana chahta hu please transformer ka primary aur secondary coils ka wireguage number aur coils ka turns ka tadad batai jaldi please

  • which coil(Gauge) is best for winding 500 watt transformer?

  • zulhilmi azizi anuar

    (June 12, 2015 - 1:03 am)


  • Wednesday, 22 February 2012 06:50 posted by MAQSOOD ANWAR
    i appreciate ur work thanx sir..

    Tuesday, 21 February 2012 21:01 posted by Ayaz
    excellent project ha bas is may agar koi formula b de diya jata k kis terha is ko high watt ya apni need k mutabik convert kia ja sakta hai phr is se acha to ups design porey pakistan mai nahi lakin jo b haa bhot hi achi cheez bana or wo bhi simple way mai sikhaya gaya hai i appreciate ur work thanx sir…

    Saturday, 18 February 2012 07:08 posted by ABDUL
    @Talha app kitny watt ka Inverter banan chahty ho?
    app 1500 k undar banaa sakty ho. I design new inverter Circuit it will be available in soon…stay in contact ……

    Saturday, 18 February 2012 07:04 posted by ABDUL
    @abdul ghafoor
    you should test with more than 12 volts it will work.the main problem is with transformers. in local (desi) transformer secondary coil cannot gives actual volt, its 13v to 15v. you should measure its voltage. or try to use 12+6 VDC battery. secondary coil output should be under 12 volts

    Saturday, 18 February 2012 05:52 posted by Talha
    Sir main ups banana chahta houn our main chahta houn kay ups hamaray bachat kay andar ban jay plz mujhe a simple homemade ups under buchat ki diagram send kar dain.Main ups to banata houn likin wo kit wala hai aour wo 1500rs kay andar banna hai.plz mijhe diagram send kar dain.

    Saturday, 18 February 2012 05:28 posted by abdul ghafoor
    I made inverter according to your’s instructions and drawing
    but its not working I used little thicker card under extra coiling instead of thin paper, Does it effect????????

    Monday, 13 February 2012 17:08 posted by vineeth mohan
    i want to make an inverter to my home.i have passed out btech ece in 2011. since there is frequent going of current i wish to make an inverter by myown. i want guidance and help. If you tell how to do it and all, i think i can make it.can u tell all the details prices and all for making the same.

    yours faithfully

    Sunday, 12 February 2012 02:44 posted by ABDUL
    Dear azam kia app mujy yeh bata sakty hain k kis type ka ups banaea hy aur kitny transistor use key hain?

    Saturday, 11 February 2012 19:53 posted by azam
    asslam o alliakum sir;muje ye site bohtb pasand aya.sir ma industrial electric engenier hn.ar ups banane ka boht exprements kr chuka hn.sir ma ne 1000 watts ups banaya ha es ma ma ne d1047 transistror use kie hn magar voltage veriation boht a rahi ha,300 watts se zyada load nahe utha raha ha.computer system chalata ha mgr mazeed lod nahen utha raha ha.battries 132amp*2 ags k lagay hn.dc 24volt circuit banaya ha.plz kindly sir muje koi behtar transister digrame send kren jo mera problm solve h jaye.ho sake esi d1047 transister k sath hi powerfull h jaye.ya kisi ar transister ka digram send kren i shall b very thankfull 2 u thanks

    Wednesday, 08 February 2012 16:30 posted by ABDUL
    @abdul rauf wa salam. bhai aap ny jis jagha 1k resistor use kia hy waha directly 1 sec k ley short kr k check karo. ya phir wire k connection change kr k daikho…

    Wednesday, 08 February 2012 15:26 posted by Abdul rauf
    Aslamu alekum
    Bhai may any inverte banay par wo kam nahe kar raha jis tarah aap nay kaha waysa he banay magar start nahe ho raha 12+12 ke taransforme le us pay 5+5 ke windin ke
    or 5+5 k sat transistor ke b may lagi darmeyan wali or e ko bat – may lagi 12+12 c may lagi 1k res lo or e may phir be kam nahe kar raha ab may keya karu help me plz

    Monday, 06 February 2012 17:22 posted by ABDUL
    @abdul ghafoor yes you can use any 12v battery.

    I faced such kind of problems, I find it problems,the main is with transformers. in local (desi) transformer secondary coil can not gives actual volt, its 13v to 15v. you should measure its voltage. or try to use 12+6 VDC battery. secondary coil output should be under 12 volts

    Monday, 06 February 2012 13:22 posted by hassan
    i try this inverter and its work ,but i have 3 problem

    1=inverter only run a 11watt saver
    3=voltage is only 160 to 180
    4=5-0-5 winding giving a 1.26 volt and 0,5 giving 1.24 volt,(in the diagram 5,0,5 winding giving a 0.7,0.7 volt)

    is that a transformer fault kindly give me a advise

    Monday, 06 February 2012 08:20 posted by abdul ghafoor
    Brother can i use motorcycle battery????

    Saturday, 04 February 2012 18:12 posted by hassan
    well i want to know that agar transformer ki winding anti-clock ho or mai 5,5 ki jo winding hy us ko clock wise kar doun tu is sy kia farq pary ga ??

    Friday, 03 February 2012 10:18 posted by ABDUL
    Dear Abdul Ghafoor
    only two 1047 transistor can use in 6 amp transformer, if you want for more than 10 amps you can use 4 transistors 2, 2 in parallel circuit

    Friday, 03 February 2012 07:24 posted by Abdul Ghafoor
    Dear One How many transistors we need for 6Amp transformer and how to place in circuit

    Abdul Ghafoor

    Thursday, 02 February 2012 16:02 posted by IOANNIS VERVENIOTIS
    I am not an expert in electronics engineering but I am trying to solve a problem. I have a UPS [12V/220 V] in use and I don’t need it. Is there any idea to increase its wattage? Because automatically I will make an inverter 12V/220V for my homemade dual system composed of solar panels, wind generator and 12V batteries.

    Wednesday, 01 February 2012 12:42 posted by Naveed
    sir 500 watt ka ups banany k liye kitne transistor lagany ho gy pls is k bare me muje bata de aur battry ko kesy charge kia jae ga sir pls muje is ka circuit diagram send kr de

    Saturday, 28 January 2012 04:56 posted by ABDUL
    Dear ali aap video main ghor se daikho us transformer se 5, 5 turns extra ke gai hain, aap ko 3 point nikalny hun gy.

    Friday, 27 January 2012 07:40 posted by ali
    *sir , mene transformer lena chaha but wo 12+12/220 ka he lekin 1 side 2 wire hen jo k 220 v k lye , 2sri traf 3 wire hen 12+12 v k lye. ap ne digram me jo transformer dikhaya he os me 1 side 2 aur 2sri side 6 wire hen, ab me kea kron , ye tarnsformer kahan se lon, thank u.

    Friday, 13 January 2012 19:53 posted by Drwebs
    Sir, i’v been using already made UPS(for PC) to power my Tv, DVD, fan and a bulb. I found out that UPS can’t charge d battery. Please what do i do??

    Tuesday, 10 January 2012 06:27 posted by SAAD KHAN

    Saturday, 07 January 2012 13:19 posted by Muhammad Ishtiaq
    i want to make a 12 volt UPS just for my internet device to stay online when electricity fails.

    is there any solution for that ?

    Saturday, 31 December 2011 07:29 posted by Uzair Mahmood Mughal
    AA. sir ap key website bohat achee lage.sir mujay generator aur ups kay maintenance kay baray mein urdu vedios kay zrorat hay. thanks.

    Saturday, 31 December 2011 06:10 posted by nadeem butt
    ap ny jo inverter bnaya hy is sy aagy ap bta rhy thy k ap is me mzeed transsiter lga kr pory ghr ki bijli chlany wala ups bna skty hn plz ap mujy is ki dayagram bna k meil kr den.

    Wednesday, 28 December 2011 04:17 posted by ABDUL
    Discussions about Pakistan Science Club’s Power Inverters 12 VDC to 220 VAC UPS, you can find problems, troubleshooting and construction help Please logon…

    Wednesday, 28 December 2011 04:15 posted by ABDUL
    @Tahir Hussain … yes you can use two dynamo in the Series Circuit

    Wednesday, 28 December 2011 04:12 posted by ABDUL
    @Abdullah Zubair app ka shukria..
    secondary winding par just 5,5 turns aur 3 terminals nikalny hun gy..

    Wednesday, 28 December 2011 04:10 posted by ABDUL
    we will make that type of project in soon..
    and some devices are also available in market

    Wednesday, 28 December 2011 04:07 posted by ABDUL
    By Wednesday, 21 December 2011 06:27 posted by Abdullah Zubair

    sab se pehle ap sab ka boht shukria k apne itna super project public se shair kia sir mujhe 500 watt ka inverter bana na ha to please aap mujhe is k lea circuit diagram send kar de ho sake tu practicali bata de .mujhe email kar de .Thanks
    Dear Abdullah zubair thanks k aap ko hamara yeh project pasand aea. app isi diagram se 500 what ka inverter banaa sakty ho is k ley app ko zaida transistors istamal karny hun gy aur 500 watt transformer use karna ho ga

    Tuesday, 27 December 2011 10:15 posted by Tahir Hussain
    Sir, can i use 2 cycle dinemos to generate 12 volts to give to transformer so the energy savour can light. moreover, can i use 1 cycle dinemo of 6 volt with use of 6+6 transformer for only one energy savour. please reply me.

    Wednesday, 21 December 2011 11:41 posted by Abdullah Zubair
    aap ka project boht acha ha keep it up.
    aap ne jo transfarmer ke winding ke ha is ko thora detail m sam jae ga k secondry winding par ketne terminal nikal ne ha

    Wednesday, 21 December 2011 07:08 posted by atiq
    sir i want to know that in our city some time the voltage become very high 300 voltage our energy saver burn my computer power supply also burn 2 time bz of high voltage. is there any device or breaker which can control voltage to 220.i want to if some time voltage become high to 300 the the device strip or gave only 220 voltage to pc other any other devices

    Thursday, 15 December 2011 04:21 posted by ABDUL
    @ zaiban ali yes you can use 8 amp transformer

    Thursday, 15 December 2011 04:19 posted by ABDUL
    For Discussions about Pakistan Science Club’s Power Inverters 12 VDC to 220 VAC UPS, you can find problems, troubleshooting and construction help

    follow that link http://paksc.org/pk/forum/34/7-homemade-50-watt-power-inverters-12-vdc-to-220-vac-ups.html

    Sunday, 20 November 2011 07:24 posted by narender
    can i use 2n3055 transistor

    Sunday, 20 November 2011 07:24 posted by narender
    can i use 2n3055 transistor

    Friday, 04 November 2011 12:31 posted by zaiban ali
    Can i use 8amp transformer intead of 5amp,….

    Friday, 04 November 2011 08:34 posted by Ali

    Sir the transformer which is available on the market is not looks like the transformer you use in the video mean there is no gap on the sides of transformer ,However the transformer has three wires on secondary and two on primary . Sir i want to know that winding is must for making inverter or not. and please tell the name of transformer mean to bye it from local shop as some of the sellers does not know the english name of the transformer. please reply …

    Wednesday, 02 November 2011 22:07 posted by nifem
    pls i want to know how many time do i need to wind the secondary coil

    Tuesday, 01 November 2011 08:33 posted by PAKSC
    @moses we will update the English version of that project soon..

    Tuesday, 01 November 2011 08:30 posted by PAKSC
    @Zaiban Ali
    You can contact at info(at)paksc.org.

    Monday, 31 October 2011 16:03 posted by Zaiban Ali
    Assalam Alekum sir i am glad to say that this project is awesome ,,, but i am facing some difficulties related to this project …,
    1. The transformer i have purchased is not open , mean its windings are not seeable so what i do.
    2. Can i use more then two transistor with type of transformer to run high voltage appliances.

    Sir please answer , on current page or mail me , will be very thankful to you….

    Sunday, 30 October 2011 14:10 posted by moses
    pls kindly make a english video version so dat other people can benefit

    Friday, 28 October 2011 14:05 posted by Nisar Ahmed
    Its so simple hy sir

    basically my Tv technician hu.Aap jaisa ckt my kidher bhi nahi dekha.Etna asaan ckt……
    But ek dout sir a ckt(circuit) Batery ko ower charge karne se
    safe rekhta kya

    Aur aap ke video etna crystal clear voice and demonstrating ke saath rehte hy.Thanks alot 4 uploading

    Sunday, 23 October 2011 03:54 posted by khalid khan
    very good. hum Pakistan ko powerpull dakna chakhty hain.
    khamary taraf say message hy. kih app log koie bi tajroba karty ho. to os ko zaror Urdu language main batana hain. kuin kih zyada log English nahi samaj sakty. 1 or bat, 1 mufassal note be likna chahiy. thanks for http://www.paksc.org
    pakistan zinda abad

    Sunday, 09 October 2011 13:11 posted by Faizan Ellahi
    Sir, i want a circuit diagram of up-to 1000W UPS square wave to sine wave inverter.Please help me how this circuit can build.I shell be very thankful to you.

    Friday, 07 October 2011 05:33 posted by Sajid
    Abdul Rauf bhai me sajid…mera invertor bn to gia he lakin transformer lagany pr output ni de ra pir aap se poch ne pr aap ne bataya ta k apni wiring jo ki he us k side k point jo transister me lagy hn wo chnge kr k dkh lo to kre te or aap ne ye b bola ta k resister to shot kr k b dkh lena phir a jai ga……..resister to bar bar shot krne pr output a ra he musalsal ni a ra….wese 7.2 amp ki batry pr musalsal r ra he jo aap ne apne invertr ki video me use ki he or me car ki batry laga ra hn to us se b ni output ni a ra please aap dobara kuch guide karn k trnsformr pr or bar bar shot resister shot na krna pare…..jo me trnsfrmer inverter ko voltage dene k liay laga ra hn us k 12v or 4 amp hn…..

    Saturday, 17 September 2011 11:23 posted by tahir ullah
    how to build 5000w inverter

    Tuesday, 13 September 2011 21:17 posted by zain
    aoa i m confused regarding circuit diagram of power inverter ……i think in this case transformer primary side will b of 12v n secondary will b 220v plz clear m confusion

    Sunday, 11 September 2011 16:29 posted by PAKSC
    @ fahad you should search transformer shop in cooperative market and asked about 12 by 12 volt 220 v 5 amp transformer

    Saturday, 10 September 2011 09:33 posted by Fahad
    @aneesulislam, aap nai transformer kahan se lia…aap dukaan ka pata bata saktay hain?fah

    Thursday, 08 September 2011 09:34 posted by ANEESULISLAM
    Main nay jo yey vedio dekhi to main nay 1 ghantay main hi yey inverter banaya hai yey to buhat hi asan aur buhat hi karamand hai.main kuch aur is inverter ko powerfull banana chahat ho so is main meri kuch madad karday to i thankfull to you……………… my email is : m_anees71@yahoo.com 03123715871

    Saturday, 03 September 2011 11:12 posted by Fahad
    Sir aap dukaan ka pata bata dain…mainai co-operative market main bauhta dhoonda tha…likin mujhay transformer nahi mila…

    Monday, 29 August 2011 05:53 posted by Awais shoukat
    Sir transformer mai sy secondry central coil kahan sy aai…..
    Sir plz apna number send kerdain…….

    Sunday, 28 August 2011 08:39 posted by Awaispilot
    Bhai jan mojhy transformer ki problem arhi hy.
    Sir apna contact number plz email kerdain.plz plz main electronic mai bohut bohut interest rukhta hoon….

    Saturday, 20 August 2011 17:38 posted by ABDUL

    Saturday, 20 August 2011 17:32 posted by ABDUL

    Saturday, 20 August 2011 03:32 posted by zeeshan ahmed
    sir may nay b kuch projects bnaye hay may paksc kasay join kro. may karachi may rahta hn

    Friday, 19 August 2011 10:56 posted by Fahad
    Sir mairi yeh samajh nahi aya k e-tech main jo tahir atay hain…woh kisi program main bata rahay thay k 30w ka inverting transformer 20 sai 25 rupai ka mil jata hai…aap nai bhi yaqeenan woh video daikhi ho gee…to un ko itna sasta transformer kahan sai mila hoga?

    Thursday, 18 August 2011 02:01 posted by Muhammad Sultan Madni
    A.O.A.sir main electrical men dae kar rah ho or muje ap sa is inverter ke bary men or details leane ha plz ap muje apna koi contect no bata day thanks

    Thursday, 18 August 2011 01:59 posted by Muhammad Sultan Madni
    A.O.A.sir main electrical men dae kar rah ho or muje ap sa is inverter ke bary men or details leane ha plz ap muje apna koi contect no bata day thanks

    Wednesday, 17 August 2011 10:48 posted by PAKSC
    @ saymon and kazim Thank you

    @ Fahad yeh aap ko Rs 250 main sadar Karachi coprative market se mil jaey ga

    Wednesday, 17 August 2011 07:16 posted by saymon
    really interesting and good. this is a push pull inverter without signal generator(pulse).

    Wednesday, 17 August 2011 07:15 posted by saymon
    really interesting and good. this is a push pull inverter without signal generator(pulse).

    Sunday, 14 August 2011 11:56 posted by kazim
    Keep It Up,
    Bring some project on Solar Power

    Saturday, 13 August 2011 01:42 posted by Fahad
    Sir, is transformer ki kia qeemat hai? aur aap kia dukaan ka pata dai saktay hain k jahan sai yeh transformer dastyaab ho?

  • Wednesday, 14 November 2012 10:07 posted by gurwinder singh
    hello sir Have one qustion i want make inverter 1000watts how to make 1000watts transformer and same use digram

    Friday, 02 November 2012 04:05 posted by ramil gamao
    good day!!! i have already created a power inverter from your diagrams, but how can i make a battery charger that is connected to the inverter… pls… send me the schematics… thank you in advance.

    Sunday, 14 October 2012 10:33 posted by s.kanivalan
    *it is very good thought

    * out put not clearly mentioned for begeiners like me

    Monday, 08 October 2012 04:36 posted by darshan
    your are a real electric science engineer

    Friday, 28 September 2012 09:31 posted by Darkwa Isaac
    pls if i want to design 3000 watts, what type resistor would i use and the no. of turns for the additional of the transformer. thank you

    Monday, 17 September 2012 23:06 posted by Tony
    I would like to have a circuit diagram of 1000w inverter. Also all the components needs. Can you send me these informations to my email usa2br@sbcglobal.net please. I really appreciate

    Monday, 17 September 2012 09:49 posted by ABDUL
    @sami ullah

    when you will charge the battery you have to switch off between E and 3rd Coil connection.
    make sure your transformer according to this project

    you have to make only 5 turns around core what ever its volt is 0.7 or less that is not a problem .
    Flag As Spammer
    Monday, 17 September 2012 09:49 posted by ABDUL
    @sami ullah

    when you will charge the battery you have to switch off between E and 3rd Coil connection.
    make sure your transformer according to this project

    you have to make only 5 turns around core what ever its volt is 0.7 or less that is not a problem .
    Flag As Spammer
    Monday, 17 September 2012 05:14 posted by sami ullah
    hello i am sami ullah i have made this project but this project have a problem during charging it’s transistor become more heat up and spread smell a have also use the heat sinker at the output output voltage 26.7 but the energy saver or bulb not light up if anyone help me in this project plz help me i have use 12 v 7.0AH battery and another problem to this project is that i have made extra wiring for 0.7volts but i could not recieve 0.7 volt it is very low plz help me

    Friday, 14 September 2012 14:56 posted by PROMIT MANDAL.
    Sir, how can I make a 800W inverter? I mean , I want a power inverter wattage chart for 800W inverter Please mail me the chart Thank you

    Tuesday, 11 September 2012 15:12 posted by Sheikh sajid
    i am sheikh sajid i love electronics n want to make electronic devices its really very good shearing i really like this n i m too make this sooon

    Tuesday, 11 September 2012 06:51 posted by cameron
    i kinda love this ,it’s really cool

    Saturday, 08 September 2012 14:52 posted by Tariq Mahmood
    Hello.I am Tariq Mahmood .I have gained about 35 years experience in Electronics when i saw this site ,I am very much delighted that in our country it is necessary to achieve technical education/knowledge.

    Thank You
    Tariq Mahmood

    Friday, 07 September 2012 14:47 posted by orji nnamdi collins
    i want to know the materials required for making an inverter

    Friday, 24 August 2012 21:22 posted by alex ngwueche
    Send to my email updates

    Sunday, 22 July 2012 16:48 posted by gulrahman
    thank you for help plz email me diagram of 3000w inverter

    Friday, 13 July 2012 12:38 posted by Trust Madumbu
    Please may you kindly provide me with a 3000W circuit diagram

    Saturday, 30 June 2012 13:50 posted by raja sohail
    salaam sir
    as a ups batry charging ka lia ap na jo kaha ha indirectly connect to ac 220, is point ko thora explain karay sir and how relay is used in the circuit?? thnks

    Friday, 22 June 2012 09:12 posted by ateeb ahmed
    yar battery ko hata kr sara saman kitney tk ka pare ga for 50 w……plz jaldi rply krn thankx

    Friday, 08 June 2012 22:20 posted by LIVINUS MISANGO
    hi there i am interested with you battery charge circuit, but my question is how much current will the charge produce, also is it possible for this charge to charge 100ah lead acid battery? please let me know.

    Thursday, 07 June 2012 12:22 posted by Nasir Javaid
    I went to Hall road for the transformer but was unable to find any. They only had simple 2 Amps 12-0-12 transformers. Can you please help me where can i get transformer for 50W and 500W inverter. I want to start with 50W and after its success I will go for 500W.


    Thursday, 07 June 2012 08:40 posted by zaid
    salam, sir aap ne coiling secondary mein ki hai na plz reply

    Thursday, 07 June 2012 04:47 posted by ABDUL
    @rico making of Inverter Transformer video will publish soon. in which we will try to answer all your questions Thanks
    Flag As Spammer
    Tuesday, 05 June 2012 18:32 posted by qasim
    how will we know battery has charged when primary coil is connect to 220v power supply and switch is off?

    Tuesday, 05 June 2012 00:27 posted by waseem khattak
    bataney k liye bohot shukria main aaj trai karoon ga.waseem khattak

    Sunday, 03 June 2012 15:18 posted by rico
    to make this project,how big is the transformer shall i use when making the 500 watt inverter,what size of the core, no.of turns in the primary and secondary and the no of gauge of the wire, can you give me a complete details on these matter,many thanks..

    Saturday, 02 June 2012 03:59 posted by ABDUL
    app is main gap rakhain ya na rakhain koi farak nahi pary ga
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    Saturday, 02 June 2012 03:57 posted by ABDUL
    @Ved prakash
    i think you are not using D1047 in this inverter only D1047 or D313 can work..
    Flag As Spammer
    Saturday, 02 June 2012 03:55 posted by ABDUL
    @muhammad naeem khan
    i think the problem is with your battery because backup depend on battery.
    Flag As Spammer
    Wednesday, 30 May 2012 19:30 posted by muhammad naeem khan
    very nice sir i really appreciate you guys and i want full ups circuit to make it at home and rechargeable as well . please i will be much obliged,thanks
    i have ups at home but its giving energy only for half an hour only and in the begening it was working for about 2 or 3 hours but now time duration is reduced and shopkeeper is saying that its wiring is with silver not copper so thats why its time reduced so can u please give me solution for this and what fault is in my ups. thanks and waiting.

    Wednesday, 30 May 2012 08:02 posted by Ved prakash
    Sir humne ek 12 volts ka trancefarmer liya hai jisme humne 12 bar turns kare aur humne do transister bhi kaga diye hai jiska number hai 1802 phir bhi wo kaam nahi kar raha hai to sir problem kya aa rahi hai koi solution dijiye please thoda jaldi dijiye aur sir humne connection bhi ekdum sahi diye hain confirm hai sir

    Sunday, 27 May 2012 20:23 posted by qasim
    jo coil ki do bar 5 turns di hain on mai gap rakhna hai

    Sunday, 27 May 2012 19:20 posted by qasim
    sir ap ne jo 500watt ki pic main 5 transistor ik bare heat sink plate per lagae hain ose per wire k connections kea hain isse sare transistor ki legs short nahi ho gaein ge.

    Sunday, 27 May 2012 18:03 posted by qasim
    sir 500watt ups video is not opening.

    Saturday, 26 May 2012 06:15 posted by ABDUL
    @TALHA IQBAL you should check the connections between base and 3rd coil
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    Friday, 25 May 2012 15:17 posted by TALHA IQBAL
    sir many try kiya hy kam to kar raha hy laken voltage stable nai ho rahy & load lagany par voltage drop ho jaty hain!
    kya problem ho ga ap k khyal may? may kaisy isy theek karoon?

    Tuesday, 22 May 2012 18:28 posted by ABDUL
    @sajjad ahmad the main function of transistors is to make pulse the the third coils terminals which are connected to transistor base give pulse to base and the transistors gives more power to transformer coils its frequency near about about 50 to 60 Hz.
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    Tuesday, 22 May 2012 18:21 posted by ABDUL
    @Areeb aap ny kitny ohm ki resistor use ki thi?
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    Tuesday, 22 May 2012 14:17 posted by sajjad ahmad
    AOA.sir will you please explain how does this circuit work.I mean working of transistors that we increase its number with increasing watts.

    Sunday, 20 May 2012 20:44 posted by Areeb
    1 transistor jis k sath 1k ki resistance lagi hai wo zada garam hojata hai dusray walay se..ye asay hi hota hai ya phir banane mai koi galti hui hai??

    plz reply

    Sunday, 20 May 2012 03:32 posted by ABDUL
    @mehran khan transistor puls generate kart hain aur aur is ki frequency near about 50/60Hz
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    Sunday, 20 May 2012 03:30 posted by ABDUL
    @abbas 2 hearsink lazmi lagain gy agar aik sath sub ko kr dia to yeh short ho jaey ga aur tamam transistors jal sakty hain
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    Saturday, 19 May 2012 15:52 posted by abbas
    agar 1 large heatsink ka sath 10 tr 1047 lga dya jain to koi masla to nai?
    please jwab jaldi dyjia ga

    Thursday, 03 May 2012 16:37 posted by mehran khan
    mujhay samajhna hay k during inversion palsating dc kesay jati hay at transformer
    or output frequency 50Hz hi go gi.. is ki explaination chahiye

    Wednesday, 02 May 2012 17:21 posted by ABDUL
    @Salman i mail you please check it
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    Wednesday, 02 May 2012 17:20 posted by ABDUL
    @ Imran Khan App ka shukria.is ko UPS main tabdeel karny k ley jald he new article publish ho jaey ga..app visit karty rahey ga
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    Tuesday, 01 May 2012 08:50 posted by Imran Khan
    im Dr Imran Khan from Khi ye to bohat hi acha tareka ap na btaya hai sr roz mara ka lod shading sa bohat tang tha is ko tray kiya bohat acha lga ab is ko ups ma tabdel krny ka liye relay kasy lgay gay us ka bary ma btay

    Tuesday, 01 May 2012 08:47 posted by Imran Khan
    ye to bohat hi acha tareka ap na btaya hai roz mara ka lod shading sa bohat tang tha is ko tray kiya bohat acha lga ab is ko ups ma tabdel krny ka liye relay kasy lgay gay us ka bary ma btay

    Friday, 27 April 2012 19:45 posted by Salman
    Sir agar transformer 12by12 ho lekin ampere 5 se kam ho matlab 3 ampere ho to kya farak parega.Waiting for ur reply.thnx in advance…

    Thursday, 12 April 2012 05:10 posted by ABDUL
    @haroon qamar this inverter can charge battery also with out using the rectifiers

    Flag As Spammer
    Thursday, 12 April 2012 05:06 posted by ABDUL
    @zain that circuit can use 12 volt to 48 volt transformer, and it also recharge the battery,

    @Muhammad Junaid Farooq

    2 D1047 is enough for 50 watt inverter. you should check the transformer secondary coil output voltage at 220 volt if it is more then 12 you need to increase battery voltage try 15 volts
    Flag As Spammer
    Tuesday, 10 April 2012 11:51 posted by zain
    Dear Sir,

    I need 24 volt ups circuit diagrame with charging circuit..
    I have faulty branded ups its controller dead..i use its transformer.


    Friday, 06 April 2012 17:27 posted by Muhammad Junaid Farooq
    sir ap ny jo 50watt ka inverter banaya hai main ny usy try kiya main ny transformer 5amp ka istamal kiya hai kiya es k liey 2 1047 bohat hein aur 2sri bt yeh k 5amp k istamal k bawajood 5watt ka saver pori trha glow nahi krta mere help karein aur batain k kistrha output pr 50 watt ka load chaly ga plz plz plz sir…..
    my email id id (zindge.ajnabe@gmail.com)

    Thursday, 05 April 2012 03:01 posted by S.M.Mumtaz ul Haque
    Assalam-o-Alaikum janab muchko aik aisa UPS bnana he jo computer (2 fan) (4 saver) chala saky daigram 12 se chaly pls meri email pr send kren.

    Monday, 02 April 2012 04:11 posted by shahid
    sir ma bey ups banana cahath ho mager maja ap ka wo trasforam pa tarah lapatna ka tip samj nahey i yah help me

    Friday, 30 March 2012 14:33 posted by sajawal gull
    you r too good friends .
    me kab se is formula ki kog me me ta
    i need mor help contect me plz
    sajukhan111@yahoo.com/phn no 923139063953

    Sunday, 25 March 2012 16:31 posted by haroon qamar
    aslaam o elekum
    thanks for introducing very good inverters, but one thing is still to need more detail for charging of battery with using a extra switch without using the rectifiers. is it possible ?
    secondly please if you can give circuit for 500 watts output ups with the detail of battery volts and amps
    with regards

    Friday, 23 March 2012 10:38 posted by sajid khan
    asslam-o-alikum pleas send me 500watts ups cricket daigram with transtar D1047

    Tuesday, 06 March 2012 02:46 posted by m.shahid
    asslam-o-alikum pleas send me 500watts ups cricket daigram with transtar D1047

    Friday, 24 February 2012 04:45 posted by faraz
    sir jo ups apne bnaya he wo bnana chata hun magar kuch samajh ni aya is apki madad lena chata hun ap ne jo winding ki he na wo mujhy smajh ni i to

    plz mujhy ap apna no de de mujhy is ups ki bhot zarorat he

  • Thursday, 16 May 2013 15:56 posted by ameen
    sir app mujhe bata sakte k mai konsi battery use krn plz mujhe sb smjh agae hay lakn ye nhy smjh k 12 volt kitne apm ki

    Tuesday, 14 May 2013 12:50 posted by waqas ali
    i am very happy 2 see that we can learn every thing about circuits and there introduction.
    thanks a lot.

    Wednesday, 08 May 2013 17:41 posted by nasib rahim
    i have nmade 200 watt ups plz send me trasformer deta

    Saturday, 04 May 2013 07:04 posted by Piplu
    i want to make an inverter with charger.shall i have a circuit for it.

    Saturday, 04 May 2013 07:04 posted by Piplu
    i want to make an inverter with charger.shall i have a circuit for it.

    Thursday, 02 May 2013 20:18 posted by manzar cheema
    bhi yaar mujay 12 volt battery charger banay ka tareka batay shokirya

    Monday, 29 April 2013 07:19 posted by Muhammad Awais Iqbal
    very very nice job you people are doing…..thanks

    Friday, 19 April 2013 15:53 posted by ABDUL
    @ Mushtaq Ahmad tell me what is your confusion?
    Flag As Spammer
    Friday, 19 April 2013 15:51 posted by ABDUL
    @ muhammad luqman azam mughal
    you can visit http://www.paksc.org/pk/diy-projects/500-watt-12-vdc-to-220-vac-power-inverter-ups-construction-in-urdu-810
    Flag As Spammer
    Friday, 19 April 2013 15:50 posted by ABDUL
    @ Tariq Mahmood Khan this inverter can also charge battery.
    Flag As Spammer
    Friday, 19 April 2013 15:49 posted by ABDUL
    @ nishantha premasiri its frequency around 45 to 55 Hz
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    Friday, 19 April 2013 13:23 posted by Mushtaq Ahmad
    Dear Sir, Please look at Power Inverter Wattage Chart last equatio, there is Transformer Amp mention 105Amp. I have confussed about that.
    Over project is very informal and good.

    Friday, 19 April 2013 12:02 posted by muhammad luqman azam mughal
    we want to make desi ups at our shop and guied us in urdu

    Monday, 28 January 2013 04:46 posted by Tariq Mahmood Khan
    Dear, Can you help me to make 12 volt battery charger 4 amp
    Please reply

    Tuesday, 08 January 2013 08:37 posted by nishantha premasiri
    what is the freqency .I wont 50Hz.very good ckt.

    Tuesday, 08 January 2013 08:32 posted by nishantha premasiri
    what is the freqency .I wont 50Hz.

    Friday, 28 December 2012 17:35 posted by ABDUL
    you can make your own inverter transformer visit http://www.paksc.org/pk/psc-videos/video/337.html
    Flag As Spammer
    Thursday, 27 December 2012 10:59 posted by ABDUL

    about battery charging video will upload soon..
    Flag As Spammer
    Thursday, 27 December 2012 10:57 posted by ABDUL
    @Sumair khan

    if you can’t get o.7 volt its not problem
    if you got less than .5 it will work.
    Flag As Spammer
    Tuesday, 25 December 2012 12:21 posted by shafiq
    sir as you have explained for charging battery i need to open the transformer 3rd coil connection and E unfortunately i am not aware of exactly which connection as the 3rd coil has three connections . however, as far as i have understood the connection of the 3rd coil i do, opens the battery negative terminal therefor kindly would you please send me the crk diagram
    thank you

    Tuesday, 25 December 2012 08:57 posted by Aliishah
    sir i don’t understand how it will charge the battery i mean if i give 220 vots at its primary coil of transformer 🙁 please explain it… thank you

    Tuesday, 25 December 2012 07:10 posted by mohammad sadiq
    very nice,
    we need basic videos.

    Monday, 24 December 2012 21:49 posted by Salim
    As Salaam ilium can you give me a circuit to make 2000watt inverter with full details zazakallah

    Friday, 21 December 2012 11:51 posted by sk a quadri
    how to make one compiyoutar invetar

    Thursday, 20 December 2012 08:16 posted by Sumair khan
    Assalam o Alaikum…. sir transformer main jo changing krni hay is say mujhay 0.7 volts nhi mil rhay … kia is transformer jaga koi or transformer use nhi ho skta im mean koi already bna hua transformer????? plz help me.

    Monday, 17 December 2012 06:14 posted by ABDUL
    @Ali Awan
    App ko 5 ,5 turn extra dainy hun gy is tarha aap k pas mazeed 3 terminals aa jaein gy side k dounu terminals base ki se connect hun gy aur central terminal battery k -tv se ho ga
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    Saturday, 15 December 2012 13:00 posted by Ali Awan
    dear sir/mam
    mujhe yeh inverter bohat he acha laga. main shop se sub cheezein laya magar jo transformer ha us ki secondary coil ma 3 terminal hain primary ma already 2 he hotay ma yeh pochna chahta hun agr 5 turn den to 3 terminal a jeyn gey… mean secondary coil mein 6 terminal a jayen 3 already thay…yah phir 3 or nikalnay han?

    Wednesday, 03 December 2014 15:35 posted by imran
    @Abdulrauf bro mene ap k method se 50Watt ka Inverter Banaya hai.. Us me problem ye a rhi hai k me jab us se energy saver jala rha hn to wo sahi tarhan jaal nhi rha blink kr rha hai…. plz help me? Inverter Voltage bilkul sahi dee rha hai per ampere bilkul nhi dee rha ???

    Monday, 01 December 2014 17:11 posted by Mahdi smaelzadeh
    hello, I like convert 6 volt DC to 6 volt AC+/-. whose invertor am I used? Can I used from “500 Watt 12DC to 220 VAC Power Inverter”; without the Transformer. please help me with send diagram in my email.
    thank you

    Friday, 26 September 2014 08:09 posted by Abdul quddus
    sir kia ap mje 500w inverter ki video send kra sakte haein

    Sunday, 31 August 2014 05:42 posted by abdalla
    i would want to get the power inverter wattage chart

    Wednesday, 11 June 2014 20:29 posted by m rizwan yaseen
    assalamo alaikum
    new transformer banane tariqa bta den

    Thursday, 27 February 2014 16:34 posted by M.Waqas
    yar koi mujay ya batay ga k, is circuit ke kia frequency ha ???? ya ake free oscillator circuit ha jis ke frequency khz may ho ge, to itni high frequency par jo transformer hum use karaty hain who work he nahi karta ha, normaly hamara transformer 50 hz or 60 hz par kam karta ha , ya he reason ha k jis jis nay bhe ya circuit try kia ha proper result nahi mila ha , or na kabi melay ga specialy normal iron core transformer par,,,,,,

    Thursday, 13 February 2014 01:24 posted by waleed
    o.7/volt kasy produs kren yr

    Thursday, 01 August 2013 00:56 posted by shams
    transistar k base emmiter or colector ko kistara malom kar saktai hain

    Tuesday, 23 July 2013 11:55 posted by ABDUL
    @ Piplu and manzar cheema this inverter can charge battery.

    @ nasib rahim
    Transformer information is available in this article table

    for this UPS you should use 7 amp motor bike battery or dry battery.

    @Sabeeh Ahmed
    kea aap ka transformer pure copper coil ka hy?
    agaar aluminum ka hy to amps bhohot he kam hun gy.

    approximately 0.5 watt

    Please check your wire connections
    @Mohammad Shoaib
    increase the turns of coil.

    Thanks you all
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    Sunday, 07 July 2013 05:53 posted by Mohammad Shoaib
    hy sir i like ur ups circuit plz sir tell me how can i take 0.7v at sec….

    Saturday, 01 June 2013 11:19 posted by Amirali
    Main ne 50w ka inverter banaya but wo bahut thora current de raha ha energy saver start hi nai ho raha.please help

    Tuesday, 28 May 2013 11:33 posted by Partha
    what should be the 1K resistor wattage rating??

    Tuesday, 28 May 2013 11:06 posted by Sabeeh Ahmed
    @Abdulrauf bro mene ap k method se 50Watt ka Inverter Banaya hai.. Us me problem ye a rhi hai k me jab us se energy saver jala rha hn to wo sahi tarhan jaal nhi rha blink kr rha hai…. plz help me? Inverter Voltage bilkul sahi dee rha hai per ampere bilkul nhi dee rha ???

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