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Inverter Circuit Diagram

June 02, 2009 By: genius

2 of 30 3/31/2010 4:45 AM
Inverter Circuit Diagram http://www.researchcell.com/energy/inverter-circuit-diagram/

APC UPS Power inverter is a very useful device which can convert
Protect Your House from Harsh Power Fluctuations. Book One Low voltage from a DC source to high voltage AC. The
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most common power inverter is 12V to 240V inverter.
Perhaps that is because 12V batteries are common. This
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type of power inverter usually draws current from a DC
poly battery. This battery should be able to provide a high
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server this purpose well. This current is then converted to
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From 30 Amps to 60000 Amps. Standard and custom designs. 240V square wave alternative current so that we may
www.filnor.com/index.html empower those electric appliances which work on 240V
instead of 12V. Inverter falls in the category of expensive
AC/DC Battery Chargers
12VDC / 24VDC / 48VDC / 110VDC 1 - 300A. Battery Chargers /
devices so many people don’t buy them even they need
Turkey them. What if I tell you how to build an inverter yourself?
www.acdc.com.tr

I remember when I build my first inverter, I was very

happy and I invited a lot of friends to see my homemade
inverter. I am sure you will feel the same. Before you start building this inverter circuit diagram, I want to
mention that this circuit involves 240V and 500W which can be fatal. You should take all security precautions
before building this circuit. Preferably use electricity protective gloves and try not to play with the inverter
circuit when it is operational. You will need little to medium knowledge of electronics in order to build this
circuit. Alright, let us get to work. There are a lot of inverter circuit diagrams available online; some of them
are complex and others are low performance. I have researched on a lot of them but in the end, I designed my
own inverter circuit which is comparable to any professionally made inverter but still is simple enough for you
to try. Here is the inverter circuit diagram:

Inverter Circuit Diagram

It took me less than $100 to complete this circuit.

You will need the following parts.

2 Resisters 470 Ohm ¼ Watt

3 Resisters 22 Ohm 1 Watt
1 Variable resister 10K
1 Capacitor1uf
1 Capacitor 220uf
1 Zener diode 8.2V
1 IC CD4047
1 IC 7809
1 Transformer 12+12/240 (500W)

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2 Transistors D313
12 Power Transistors TIP35C (make two pairs of 6 transistors each connected in parallel)
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

There is only one variable resistance in this circuit diagram which is used to adjust frequency of 240V AC
output current. You should have a frequency meter to adjust this frequency of 50HZ to 60HZ as per your
requirement. Please do not power up any device with your inverter before frequency adjustment because a
wrong AC frequency can burn your equipment as well as your inverter.

I have used a two stage regulated power supply to avoid frequency changes with the drop of battery voltage.
First stage is 7809 which is a standalone voltage regulator. It converts 12V DC to 9V DC. Then we have used
a 22 Ohm resistor and then a zener diode of 8.2V which forces current to stay at 8.2V. The 22 Ohm resistor is
there just to aid zener diode. The output frequency of this inverter circuit is square wave so it is not best to
power up inductive loads so use it at your own risk. However I do power up fans at home using this inverter
and I never had any problems other than a little decrease in fan speed and addition of a little noise. If you
have any questions, please use the comment box bellow.

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Posted in Energy • Tags: Electronics, Energy • Top Of Page

121 Responses to “Inverter Circuit Diagram”

Comment from Dandy

Time June 9, 2009 at 5:36 am

Thanks for sharing this inverter circuit, can you please tell me which power transistors can I use if TIP35C is
not available in my area? Thanks in advance

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Comment from genius

Time June 11, 2009 at 4:17 pm

You can use any NPN transistor here which has power range of minimum 100W and 10A. other examples
could be D1047, C2581, 2N3055. however TIP35C is certainly better.

Comment from Farasat Hassnain

Time June 21, 2009 at 7:29 pm

In this circuit which transformer will i use please tell her volts and amp.And Capacitor 220uf and
Capacitor1uf volt.thanks

Comment from Farasat Hassnain

Time June 22, 2009 at 9:04 am

This inverter is automatic or not…please help me to build this inverter…thanks

Comment from rahul

Time June 24, 2009 at 11:46 am

hello a great thanks…

can this work when the power is off. pls help me…………

Comment from rahul

Time June 24, 2009 at 11:56 am

how to make the input section a rechargable source that we can power up the equipments even when there is
no supply….

great thanksss for the circuit

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Comment from anthony OGBOLU

Time June 25, 2009 at 3:35 am

i want to know the primary, secondary, and the finally stage of your 3kva inverter circuit dragram for learn.i
will be greatfull if you can help me

Comment from genius

Time June 25, 2009 at 7:04 pm

@Farasat Hassnain, you can use a 240v / 12+12 / with a capacity of 40 Amp minimum. Both capacitors
should be 25V or above. You can make this inverter automatic using a double relay. I will post an automatic
version of this inverter soon.
@Rahul, yes this inverter can work on 12V Battery. You can use any 12V recharge circuit to recharge the
battery. Recharge circuits are always separate from inverter part.
@Anthony, In first stage, The CD4047 acts are an accelerator and outputs signal using 470OHM resistors to
the D313 transistors, then in second stage these transistors amplify the frequency signal to drive the main
transistors and then transfer the signal on the Bases of main transistors using 22OHM 2W resistors and then in
the third and last stage, the Main transistors starts to switch as per the given frequency signal . These high
current pulses causes the transformer to generate 240V square wave output. I hope that explains every thing,
if you have more questions then let me know.

Comment from Ahmed

Time July 4, 2009 at 12:40 am

I want to know that how can we make Transformer 12+12/240 (500W)what is size of its central pole, primary
and secondary standard wire guage

Comment from Ezekiel

Time July 4, 2009 at 8:36 pm

Please I need a version that uses 2 relays to make the Inverter automatics, how soon can I have it please.

Comment from Anand

Time July 5, 2009 at 7:12 am

If use one 40W light and one fan, how long the battery will last?

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Comment from genius

Time July 5, 2009 at 4:36 pm

@Anand, this depends upon which battery you are using. Suppose if you are using a 12V 115AH battery then
it will last from 5 to 7 hours depending upon the quality of battery. the calculation is assuming that you are
using a 40W tube light and a 120 Watt Ceiling Fan.

Comment from AJAYI

Time July 7, 2009 at 4:32 pm

Kindly send the circult to email box ,the on your web is legible at all.

Comment from Ajur

Time July 8, 2009 at 6:54 pm

Thanks for giving a wonder full information. but i need some more information regarding the transformer as
ya have used 12+12/240 transformer. so plz do reply to this.

Comment from Dave Hotrum

Time July 10, 2009 at 9:27 am

I am building an electric car. I have a 10 hp 3ph motor. The inverter is out of my price range. What do I need to
do to change this diagram to work on my car? Thanks for everyones help.

Comment from charles chuks ofili

Time July 10, 2009 at 1:34 pm

i think i found this site very intresting, i got what i was looking for though it not exactly what i wanted but this
gave me a clue thanks

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Comment from sandeep

Time July 13, 2009 at 3:04 pm

my inverter is of microtech company.iwrongly connected the wires from inverter to the battery.now it is not
working .please tell what should i do & if there any big fault

Comment from genius

Time July 14, 2009 at 2:17 pm

@Sandeep, It is impossible to say any thing about your inverter unless i see it. You better contact the person
from which you purchased it.

Comment from genius

Time July 14, 2009 at 2:31 pm

@Dave Hotrum, It is not a good idea to use an inverter in such high current applications. You will lose a lot of
current during the voltage conversion by the inverter itself. It is impossible to build a 100 percent efficient
inverter. almost 25% of the energy will be lost even if you get the most efficient and expensive inverter. I
would suggest that you should find 12V or 24V 10HP motor for this purpose. I am sure you will find one if
you search for it. I have used one in a machine I made earlier. A 12v or 24v motor will give you more power
and running time due the the fact that it will fully utilize the available current directly from the batteries. Let
me know if you still have questions. Thank:)

Comment from genius

Time July 14, 2009 at 2:36 pm

@Ajur, You can use a regular 240 to 12+12 transformer. No need to find a special one. Just keep in your
mind the watts you are going to need. For example, if you are building a 500W inverter, you should arrange a
transformer capable of dealing with 500W (42A X 12V = 504VA(W)) your transformer should be capable of
giving 42A on 12V and 21A on 24V.

Comment from Asim

Time July 19, 2009 at 2:45 pm

your inverter circuit is very simple and easy to essemble.I have face some difficulties during making UPS.
1.I can’t anderstand the direction of (IC7809) that the collector of 7809 conect to battry side or to the 22(1w)
resistance.
2.If the Transistors TIP35C is not available what is its alternate?

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plaese send you effective suggestion.

I shall be very thankful for this.Thankyou

Comment from Asim

Time July 19, 2009 at 6:04 pm

hellow!Your inverter diagram is is very easy and efficient.This is a good wook.

I have face some problems during essembling this inverter and need your help.I hope that i will complete my
inverter from your gainful opinion.
1.I can’t anderstand the direction of (IC7809) either his collector connect to battry or 22(1w) resistance.
2.If the Transistors TIP35C is not available what is its alternate.
Plaese send me your opinion about above problems as soon as posible.I shall be very thankfull for
this.Thankyou

Comment from Asim

Time July 20, 2009 at 4:32 pm

can i use IRf150 in place of Transistors TIP35C.what is your opinion?

please describe your opinion as soon as posible

Comment from muthu

Time July 22, 2009 at 1:16 pm

in this 500 watts inverter how much amps in battery please tell me

Comment from genius

Time July 22, 2009 at 4:58 pm

@muthu. For 500 Watts inverter, it is recommended to use minimum 85 AMP battery. 140AMP or 200AMP
will give you more backup time and more balanced power.

Comment from genius

Time July 22, 2009 at 5:29 pm

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@Asim. You can use D1047, C2581, 2N3055 or any other NPN transistor with power rating of 10A 100W or
above with 45V or above value.

Comment from muthu

Time July 22, 2009 at 5:50 pm

CAN I GET VARIABLE RESISTER 10K,CAPACITOR1uf&220uf what is value of volts

Comment from kayode

Time July 24, 2009 at 4:54 pm

pls sir could u make ur circuit more detailed

Comment from Asim

Time July 25, 2009 at 9:04 pm

Hi genious!I have one more problem.

In your inverter diagram there is no led lite to indicate whether the UPS is in working position,chargeing
position or trip.
Please give your gainful opinion.
Plaese told from where i give connection to led lights

Comment from Zaid

Time July 28, 2009 at 12:02 pm

hellow gnious!
I want to know that either this circuit can charge the battry or not and is this inverter is automatic or not if not
plaese post the automatic inverter daigram soon.
I shall be very thankful for this

Comment from ruel

Time July 30, 2009 at 9:10 pm

thanks for sharing your idea..

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i am planning to build an inverter using your circuit..

i hope you will guide me building one.
thanks a lot..

Comment from keskin

Time July 31, 2009 at 11:49 am

hi genius, thank you for circuit. i have few questions:

- could you tell me the direction of the two capacitors? Which side is (+)?
- what is the pin connections of 7809?
- what kind of devices can we run if we use a lower-powered transformer, such as 200 W?
(this is an urgent case. Please help me as soon as possible)

Comment from Jonathan

Time August 5, 2009 at 12:58 pm

hi genius pls can i no the volt of the capacitor1uf and 220uf

Comment from oluwafemi

Time August 8, 2009 at 12:12 pm

thank for sharing your idea..

iam planning to build an inverter using your circuit,but can i us a IRF150N transistor in place of TIP35C
transisor.
please i need answer to this question as soon as posible.
Thanks

Comment from lokesh

Time August 8, 2009 at 6:22 pm

6v to 40w inverter circuit

Comment from John

Time August 13, 2009 at 1:54 pm

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Hi & thanks for sharing your idea with us. I assume that I can use this same plan to build a 3000+ watt
inverter but would obviously need to change the values and sizes of the components. Can you please advise
me accordingly?
Thank you again for your generosity,
John

Comment from samson jimoh

Time August 14, 2009 at 12:49 pm

hello sir, thanks for sharing your idea on

your inverter very intresting.can i get another circuit that can up to 3kv i will be very happy if i can get it
thanks,
my name is samson jimoh my email is samson_jimoh@yahoo.com

Comment from Tunde

Time August 19, 2009 at 4:02 pm

I like ur concept, but i want to know if i can wind the transformer my self and if i can, how

Comment from Darlington

Time August 19, 2009 at 6:03 pm

Hi guys, thank you so much for the inverter circuit diagram for 500w. It works so well. Now i have a
question, however, because this one produces square wave, can i get one that gives sine wave?. If there is
please sent me even via email. Thanks.

Comment from Casper

Time August 23, 2009 at 12:03 am

Still having a problem understanding the 7809 polarity in this curcuit. I have now placed the 7809 “outside”
the curcuit to overcome this problem. The zener clamp shunt the 9V output down to 8.2 volt and supply the
CD4047. Is my approch ok doing this? Any ideas?

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Comment from Ratnadeep

Time August 25, 2009 at 11:06 pm

If i want to use this inverter with acid cell what should be the “VA” of that battery?

Comment from genius

Time August 26, 2009 at 7:07 pm

@Ratnadeep any thing over 100VA will be good. Please select one Depending upon the your load and the
backup time.the more the better.
@Casper, 7809 is actually placed there to decrease the differential load on the 8.2V zener diod. You can even
skip the 7809 entirely and can place an extra 22OHM 1 watt resister in place of 7809, the 8.2V zener will
automatcially reduce the voltage to 8.2 but it is not recommended though.
@Darlington, i will try my best to post a self tested sine wave circuit as well as soon as possible.
@Tunde, alright i will try to post a tutorial on how to wind a transformer for this inverter circuit as well.
@samson, you can use same circuit for 3KV you only need to rewind the transformer for appropriate voltage.
For the power transistors number, just divide your power requirement by 100 and then use that number of
TIP35c Transistors on both sides. For example, if your power output is 2000W, just divide it by 100 which is
equal to (2000/100) =20 so 20 TIP35C on each side.

Comment from dams

Time August 28, 2009 at 5:09 pm

i need more circuit diagrams in my mail 4 better construction. i really love the provided circuit diagram.

Comment from Ray Kompe

Time September 2, 2009 at 3:24 am

Hi Genius, thanks for your article. You have helped me nut out how an inverter works. Can you tell me the
practical advantages of a sinewave inverter as opposed to a “dirty” modified square wave on?. Will the latter
cause over-heating of capacitors in appliances that they are connected to? Will they cause any damage and if
they do, in what way?

Comment from hakeem

Time September 3, 2009 at 3:51 pm

Thanks a million
Will get back to you after building it

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Comment from johnkennedy

Time September 4, 2009 at 6:15 am

1st ,how can i use FET in place of power transistors?

2nd; how can an inverter work when the battery is diconected after the first suppy.pls help me out.

Comment from Austyno

Time September 4, 2009 at 9:53 am

please i am a student and i ant to construct an inverter in my summer project,i luv your diagram but i am
confused on how to connect the TIP transistors can you draw the connections for me through my email;
austyn_1@hotail.com i will be pleased.

Comment from Austyno

Time September 4, 2009 at 10:05 am

please how can i wind the transformer to b used and how can the battery be charged .please can you post it to
my mail; austyn_1@hotmail.com

Comment from janmuhammad

Time September 17, 2009 at 10:11 am

please how can i wind the tarnsformer to be used can the battery charged.can you post it my mail
janmuhammad11@live.com thanks

Comment from Rudresh

Time September 17, 2009 at 2:35 pm

Thanx for the ckt.

Could you tell the polaritys of 2 capacitors?
CD 4047 is not having connected – ve terminal in the ckt.
Could you please clarify.

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Comment from miki

Time September 19, 2009 at 4:28 am

how do u get make a 24volt inverter from a 12volt..what is really important i should look into

Comment from Anicet Laurent

Time September 20, 2009 at 3:47 pm

Dear,Si!
I have used power fets 2SK2233 as power transistors. 4 Fets managed to drive the load of 600W. My problem
is on how can I change the waves to Sinewve?
Anicet H. Laurent,P.O.Box 5111 Mwanza,Tanzania.
hishakiye@hotmail.com

Comment from John

Time September 28, 2009 at 12:15 am

I have seen what you did,it`s very good,but can you help me with the desing and construction of a unit
inverter amplifier in a follow up state.thanks

Comment from adeola

Time September 29, 2009 at 1:20 pm

please,i need all the neccessary information on inverter circult diagram.

Comment from Ratnadeep

Time October 1, 2009 at 10:48 am

hi, i am willing to do ur ckt. but i can not understand that where is the ground portion of ic CD4047. Another
problem is that the “0″ volt terminal of transformer connected to the positive end of Battery? is it true plz tell
me.

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Comment from kelvin chibale

Time October 9, 2009 at 4:47 pm

Is it possible to find a system where the inverter in retain charges the battery?

Comment from daniel

Time October 12, 2009 at 3:40 am

plz i need the conection the transistors,and the exertly voltage of the capacitors, can this inverter power a
televition and 5x of 100w bulbs?
soon to here from you throug my mail plz.

Comment from sara

Time October 13, 2009 at 2:17 pm

i want to design a small scale wind power lighting system. Is this circuit is applicable to complete my design.
The wind generator connected to 12V battery and than to his circuit. Is it possible?

Comment from engel

Time October 14, 2009 at 8:07 pm

how to wound transformer for this

the 12v wound first?240v as sec?

Comment from JASTICE E. NATHANIEL

Time October 20, 2009 at 5:10 pm

I thank for your circuit of inverter so may you send for me circuit diagram of pure sine wave inverter with
power of 3000watts or 4000watts.

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Comment from sara

Time October 20, 2009 at 5:35 pm

what are the other components can be used to replace CD4047

Comment from kelvin okeyson

Time October 22, 2009 at 8:47 pm

i thank you for the inverter circuit,can i use thes inverter to power up to 100W bulbX5 and one television

Comment from murugan

Time November 2, 2009 at 11:21 am

give the pin details of ic 7809 and how can charging the battery give the circuit.

Comment from Shane

Time November 2, 2009 at 1:47 pm

Hey,
Is there any possiblilty you could tell me what the diffrence is to sine wave and just square wave? also could
you send me an automatic version on which i could just plug into say a car socket and run things off?

if you could send it to my email : ironhockey_player@hotmail.com that would be great or just on here as ill
check this regulary.

Thanks

Comment from genius

Time November 5, 2009 at 6:16 pm

@Ray Kompe under my experience, modified sine wave and pure sine wave inverters are almost identical.
However modified sine wave inverters cause a little ripple in poorly filtered power supplies, secondly,
modified sine wave inverters has less power conversion ratio when compared to pure sine wave. Square wave
inverters like this one are thought to be a little harmful for conductive load as well as some digital loads but
practically, I think digital powers supplies can easily handle square wave. However conductive load like
motors can suffer from low starting surge or heat up under heavy load.
@JanMuhammad, @Johnkennedy, kelvin chibale Inverter is not intended to convert to backup automatically,
or to charge battery automatically, you are probably looking for a UPS circuit diagram. I will soon upload one,

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Please keep visiting.

@Austyno if you hold a TIP35C transistor with its 3 pins upwards and with the front side towards you, the
most left side pin is Emitter, the center one is collector and the right one is Base.
@Anicet Laurent @, JASTICE E. NATHANIEL You cannot convert this circuit into sine wave that easily.
Right now there are various modified sine wave circuits are available but I am trying to built a simple one.
Once done, I will post it here. Please keep visiting.
@Ratnadeep Yes, the center loop or “0” volt terminal of the transformer will be connected to the positive
end of the battery.
@Daniel, @Kelvin Okeyson yes this inverter can power up the load depending upon the transformer and the
power transistors you use. Please read the article again, you will find the info you want.
@Sara Yes this inverter can server your purpose of 12V to 240V conversion using wind power. And for your
second question, CD4047 is a common Integrated Circuit (IC) and can be easily found in almost any
electronics market in the world. I am afraid it cannot be replaced with any other IC.
@engel, you can use a standard 12V+12V / 240V transformer if you cannot wind it.
@murugun Please read this article to know about 7809 pins http://www.researchcell.com/general/7809-
pin-and-circuit-diagram/
@Shane, I will soon post and article about sine wave, modified sine wave and square wave due to the fact
that a lot of people request it. Secondly for you can attach this circuit to your car battery. Just place a high
power switch on the 12V positive input. The car automatically charges your battery whenever you start it.
However if you don’t often drive then your car battery might get drained due to lack of charging. Try to
balance your driving time and your inverter usage. The more you drive, the more battery is charged.

Comment from aiioe

Time November 10, 2009 at 2:41 pm

Thanks. Good day, i saw your project kudos to you. Sir, can i use this inverter made to power television,
DVD,and radio. Also, how can i continue developing this inverter for sales and even trained people with
it.How can i make inverter with 24V input to give 240V output, how can i reduce any noise that might result
due to the construction, those components used in your own how will i upgrade their value to suit my
construction.

Comment from seun.1

Time November 12, 2009 at 2:57 pm

can i use irf44 phet in place of tip35c transistor

Comment from seun.1

Time November 12, 2009 at 3:03 pm

can u forward 2000w inverter circuit to my mail box,use phet

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Comment from ATTA ITOPA

Time November 12, 2009 at 7:13 pm

hi, nice to see your work. i want to make an enquiry about the circuit diagram. how can i know the points of
connections at any point.i mean how to differenciate between connected points and the unconected points in
the circuit diagram:.pls reply me to this email address.call4atta@yahoo.com. thanks

Comment from Wenceslas

Time November 21, 2009 at 2:33 am

I’m very keen to build this inverter after unsuccessful previous attempts prior to your circuit diagram. I
wonder if you can email a clearer circuit diagram. The one you have provided less legible.

Regards

Wenceslas

Comment from Ahmad nawaz

Time November 23, 2009 at 11:20 am

Aslam-o-alakum
i have used this circuit and found very good result.
but i have a problem in the circuit,that on the inverter the fan speed is not satisfied or the fan speed is low on
the inverter.plz sove my two problems about the circuit.
1-if i use the 220nF capacitor then what happen?
2-if i use the irf 150N replacing the npn transistors,so what is new change in the circuit.

Comment from Darlington

Time November 24, 2009 at 8:41 pm

Hi genius, i greet you. Just to remind you that you promised to send me your own tested sine wave inverter
circuit diagram. Please, post it to this email address together with the automatic relay controlled circuit,
darlington_isalano@yahoo.com

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Comment from genius

Time November 27, 2009 at 9:42 pm

@Ahmad Nawaz, my friend, slow fan speeds can be due to two reasons,
1. Inverter Frequency is not 60Hz, you can use the variable to adjust inverter frequency. It is better to get a
frequency meter before athttp://www.researchcell.com/wp-admin/edit-comments.php#comments-
formtempting this. However you can also put only a fan on your inverter and then adjust the variable till you
get the required speed.
2. You can add 10% extra turns on the output side (240V) of your transformer.
I personally think you dont need to attempt the second method, you probably only need to adjust inverter
frequency.
Secondly, yes you can use IRF as well but it is a good idea to ground a 10K resister from the bases of
IRF150N. However I have tested TIP35C with this circuit not IRFs

Comment from francesco

Time November 29, 2009 at 11:12 pm

salve,
posso utilizzare un IRFP150N al posto del tip35c??? la prego risp

Comment from fatrian

Time December 3, 2009 at 8:46 am

Hi genius,,
I have tried to built this inverter, but it didn’t work properly because the output only 30 V. Can you email me
a clearer circuit diagram? Especially for IC 7809 (7809 pic in your web is’nt exist)

Comment from gaurav

Time December 5, 2009 at 3:43 pm

i want to know that if i will give supply of Dc 12v current by an dyanemo,it will be work?

Comment from jeffreywong

Time December 9, 2009 at 7:44 am

Im building a 12-240V, 200w inverter. The problem i face is the current using in 12V side is around 20A. The
normal transformer cant wintstand so high current. Could u tell me how ca i build a 200w transformer?
OR

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how can i power up to 500w output without using 500W transformer?

THanks…

Comment from Raphael O. Taiwo

Time December 10, 2009 at 12:35 am

You are doing a great work at researchcell.com. I have been searching the Net for something like your posting
(about inverter) for a long time. I live in an area where power failure is the rule rather than the exception.
Tired of gas-consuming and noise-making generators, I made up my mind to find a better means of power
generation. I am certain your ‘tutorial’ will help me a lot in realizing my aim. I aim to build the inverter,
connect it to a step-up transformer – say 2kv-5kv transformer, using a car-battery as the power source. From
the output of the transformer, I want to recharge the battery, using a separate battery-charge. Please, what do
you say to this?

Comment from Khalid Syal

Time December 17, 2009 at 11:29 pm

i have complete made this circuit with charging battery with battery leval during electict city power off and
suported computer supply no brak.

Comment from aditya.boal

Time January 7, 2010 at 8:48 pm

what is the voltage value of 1uf and 220uf capacitor here

Comment from vinay

Time January 9, 2010 at 12:21 pm

Hello!!!!
I need to build an inverter which should be possible to build within in 10 days, so please guide me to build a
best inverter. Please reply as soon as possible to my mail

Comment from Vinay

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Time January 9, 2010 at 12:55 pm

Hello!!!!
Me n some of my friends willing to do an inverter which should be completed with in 10 days which should
be used for lighting up of 4 to 5 cfl lamps. So please reply to my mail as soon as possible. Please help, we
need ur guidance

Comment from allan

Time January 17, 2010 at 11:40 am

sir,
it is very informative..
can you please explain every components jobs in step by step?with voltage drops of each?
Godspeed!!

Comment from allan

Time January 17, 2010 at 12:06 pm

sir,
what is the formula for computing the transformer wattage base on your ckt?…
from choosing your battery to match the load?
pls give us also the formula on how the 115ah battery can sustain 60w bulb?
more power

Comment from Darlington

Time January 17, 2010 at 6:57 pm

Hi genius,thanks for your commitment in assisting us

with technical information, but i have an issue, your soon is always taking centuries. You promised to upload
a UPS schematic diagram and an automatic relay controled inverter, i have been waiting since August in vain.
Is that you dont have them ready? let us know so that we can patiently wait. Thanks.

Comment from Darlington

Time January 17, 2010 at 6:58 pm

Hi genius,thanks for your commitment in assisting us

with technical information, but i have an issue, your soon is always taking centuries. You promised to upload
a UPS schematic diagram and an automatic relay controled inverter, i have been waiting since August 2009 in

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vain. Is that you dont have them ready? let us know so that we can patiently wait. Thanks.

Comment from Akbar

Time January 18, 2010 at 10:08 pm

It’s a Square wave inverter, but I need a pure sine wave inverter, Please Tell me about pure sine wave
inverter circuit diagram.

Comment from schupp

Time January 21, 2010 at 5:48 am

can this power an el wier

Comment from rodolf

Time January 22, 2010 at 10:15 am

hi,
can this inverter power up the aircondition?

Comment from Muhammad Muzammel

Time January 22, 2010 at 1:08 pm

Its a nice circiut. Can you tell me which pin of 7809 connected to 22 ohm resister and which pin is connected
directly to CD 4047.

Comment from Bharat

Time January 22, 2010 at 7:42 pm

How do I increase the input of the inverter from 12 volts to 28 volts?

Comment from danish

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Time January 25, 2010 at 11:45 pm

my qus is
can i use regulater LM2577 for transformer ??

Comment from kaluya moses

Time January 26, 2010 at 2:10 pm

Hi man thanks for the wonderful knowledge and being generous to every body about power problems.
my comment about this circuit is that (1) it is small and clear am going to try to build it.
my request is please!! degsin for us an auto charger baterry 12v dc which can charge 200Ah baterry thanks.

Comment from kaluya moses

Time January 26, 2010 at 2:19 pm

my second request is that please, if you can, try to put much effort on a pure sine wave oscillator/inverter i
will be very grateful if my request is considered.

Comment from oscar pappoe

Time January 26, 2010 at 10:42 pm

please can you kindly tell me the functions of the various components in the diagram

Comment from Lawrence

Time January 28, 2010 at 4:43 pm

Pls i need a 40kva inverter circuit for my school project. I’ll be very grateful if u can help me with it.

Comment from venkat

Time January 29, 2010 at 1:10 pm

TIP 35 C transistor 2 is seeing remaining 4 transistor where will connecting.pls telling.

thank you
venkat

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Comment from ngaya philipo

Time February 3, 2010 at 8:40 pm

thanks for your improvement on your technology of inverter.but Iwant to know the characteristics of inverter
parts

Comment from ankit vashisht

Time February 5, 2010 at 4:34 pm

hi
this one is the good ckt can u plz give me the correct pin position of 7809 ic
nd also how could i make the transformer

can u kindly mail the details of this ckt on my id thanking you in anticipation

ankitvashishtece@gmail.com

Comment from Nik

Time February 8, 2010 at 12:56 pm

hi genius,

I was wondering, the 2 sets of 6 parallel power transistors, im not sure how the connection looks like. could u
help me out with this?thanks alot

Comment from Uzair Amir

Time February 9, 2010 at 9:03 pm

Hello sir
thank you for sharing such a simple circuit i am going to make this circuit in a day or two & hope that i will
get the expected results.
Thank you so much once again, please keep sharing such useful & practical circuits..

Comment from Uzair Amir

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Time February 9, 2010 at 9:05 pm

@ Mr.Jan Mohammad
bhai did u get the circuit which u have asked in this forum?for which u have given ur email id?

Comment from Mr Mbele

Time February 10, 2010 at 7:20 pm

Hello sir
I ask for help on alternative transistors that may be used instead of Transistor D313 as they have been used in
your inverter circuit

Comment from Bulu shadangi

Time February 10, 2010 at 9:02 pm

Hell sir

Thank you a lot for such a eassy circuit I,will try to make it .pl.I ned a 5KVA circuit digram.Thaks again.

Comment from mike

Time February 11, 2010 at 12:47 pm

Hello sir/madam i would like to ask some few questions concerning to this circuit diagram(inverter). My
questions are: – what are the demand for a product(number of units)?
-who is the end-user?
-what are the need of end-user?
-product reliability?
-cost of manufacturing?
-price of unity?
-maintanance of functionality?
I will appreciate it if you will be able to help me, as did by sharing such a simple circuit diagram. My concern
is that i like to know more about this project.

Comment from dapi

Time February 11, 2010 at 1:02 pm

hi genius…
i need ur help,

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can u send me overall inverter proses.

and result details of your inverter.

Comment from farooq

Time February 25, 2010 at 5:48 pm

hi !
i am a student of BSEE and my final year project is on micro-controller based pure sine wave USP !
can i have ur help sir ?
my ID is Goodluckyou_maaz@hotmail.com
regards

Comment from omoyoloye seyinde

Time March 2, 2010 at 2:59 am

hi wise one,
can you connect me to deep cycle battery manufacturers cos l need it in large quantity.l have a working
inverter.

Comment from shakil

Time March 3, 2010 at 2:38 am

hello Mr.
How are you. Already I made a Inverter of 500 watt. I used ic 3525 for oscillation & IRFZ44N 4+4=8 piece
& transformer winding primary 12gaze and secondary 21gaze. It’s output Volt 230V& Hz 50. Inverter is
running but two problems. This problem is fan moving slowly and create noise.
So please tell me how can I solve this problem. I want to know this solution as soon as possible.

Comment from SAMANTHA

Time March 3, 2010 at 9:29 pm

Dear Genius,
Can i replace TIP 35C with GT50 J101.

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Comment from ajewole victor

Time March 4, 2010 at 4:24 pm

how many milliampere makes watt

Comment from jayadev

Time March 4, 2010 at 9:26 pm

hi,ginious,i want make 3-ph voltage source inverter for controlling 3-ph induction motor,can u help me
,please,thank u.

Comment from Anderson

Time March 8, 2010 at 11:05 am

Kindly requesting for simple pure sine wave inverter circuit.

Comment from Kaleem

Time March 9, 2010 at 7:17 am

Hi sir if we use 24 power transistor 2n3055 each contain 12 transistor in parallal and we connect them 220
ohm 5 watt resistor i think that power will be batter??????? m i ri8

Comment from polash

Time March 10, 2010 at 6:19 pm

i want only 50hz inverter circuit diagram. please send my e-mail “add-szpolash@yahoo.con”

Comment from k,venkatesh eee

Time March 13, 2010 at 8:09 am

it is possible to lighting the florescent lamps and EFL bulbs etc?

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Comment from k,venkatesh eee

Time March 13, 2010 at 8:15 am

it is possible to power 40w florescent lamps and CEL lamps etc

Comment from AUGUSTINE

Time March 16, 2010 at 7:14 pm

Goodday sir,please I will be glad to get more information on HOW TO CONNECT THE 12 TIP35C
TRANSISTORS IN PARALLEL and to DETECT THE EMMITER,BASE AND COLLECTOR
TERMINALS OF THE TRANSISTORS.

Comment from from cozzy.

Time March 18, 2010 at 7:34 pm

since Cmos Ics is affected by electrostatic charges is their any other alternative ICs rather than CD4047

Comment from Ali

Time March 20, 2010 at 12:41 pm

hello, should i give the output of the 7809 to positive end of the zener diode or to the 22ohm resistor?plz give
the pin no. of the 7809. and the polarity of the capacitors. thanks in advance

Comment from k.venkatesh

Time March 20, 2010 at 8:12 pm

I have purchased 10 amps transformer with other ratings specified by you. can I use that?

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