How to build the 200 watts home inverter projects

You read the article about 200 watts home inverter projects If you are interested in creating this project.Let’s see how to do.

Starting from to make PCB as shown in Figure 1. and Check for any error of the copper. Especially between pin of IC2-SG3526N. Which is small, easily fail and short circuit Should be extra careful.
This article is part of 200 watts home power inverter project using SG3526N You can read each section for continuity.

  1. Simple working principle of the inverters
  2. Operation of 200 watt inverter diagram
  3. An oscillator of the 200 watts power inverter
  4. The output circuit of 200 watts home power inverter.
  5. 200 watts home power inverter project using SG3526N
  6. How to build the 200 watts home inverter projects


Figure 1

Then put the device in the form in Figure 2. By put lowermost equipment before. Then gradually by higher equipment respectively. To facilitate the operation.

For the 2 ICs in the circuits should put the socket IC. To protect heat from soldering. Which may cause ICs damage. The both power mosfet transistors (Q1 and Q2) Before installed with the heat sink. Must insert by a sheet of mica prior to the body of mosfet short circuit to the heat sink.
And for better cooling efficiency. Should apply silicone cooling pad with mica.

Figure 2

When all the components on the PCB completely. The next step is the wiring to the transformer. And equipment that are outside the PCB. In the example shown in Figure 3, and figure 4 is an example of the power inverter to the finish. Ready to go to trial.

Figure 3 The connection wires on this projects

Testing and tuning.

The final stage of the project is The functional testing of the machine. It can work normally or not. Beginning Must provide supply +12 volts from the battery to the circuits. Normal dimmer LED must be on. Then, use the multimeter set range on AC 1000V measure the output voltage.
If the circuit working correctly measured approximately 220 volts. If not for the lack of print – not Short,Enter not guilty. The circuits to work immediately without any customization.

This project should not be used Testing DC voltage 12 volts from the power supply. Because of this power inverters to the power current source is quite high. If using full capacity. Use high current to 10 A. If the power source can not supply this amount. They will enter to the protection status immediately. Because the voltage falls below 12 volts.
Thus, in the experiment or the actual use should be running on battery power. Which can flow over the general power supply.

For ease of implementation. They should find circuits box containing all and connect wire DC input out. The wire used should be no larger than 4 square millimeters.

Under 500 watts is the perfect.

The inverter unit is a compact. Suitable for use with appliances that consume a lot of electricity. Such as fluorescent lamps, LCD TV 22 inch or VCD player generally. Should not be brought to the appliances that consume more energy. Such as irons or electric stove. Because it makes machine stop to the protection status (without damage).

Bringing this project to implement offsite. Such as to camp overnight. May want to use different appliances. Which would have the power source from the battery of the car. The batteries in cars is size from 80 to 100 amps per hour. If the battery is full. Will be able to power machine 200-watt inverter for over 8-10 hours.

The battery is weak. Which, if brought to the inverter fluorescent lamp fluorescent Generally, the size (36 watts) can power your car battery with an inverter and all night long. Without having to ignition. Machine cars leave the noisy and oil. Due to concerns that the wakes in the morning to start the car misfire The battery pack is exhausted.

The voltage 220V 50Hz from this inverter Sine Wave signal is not as light as the perfect home. Frequency 50.00Hz and may not fit. There may be some slight error. Therefore, it should not lead to an electrical device. Or tools that require high accuracy. Such as instrumentation. Which may cause these devices. Working correctly.

Caution, the more important reasons are Be careful not Must use very high input voltage than 12 volts.Because of the high pressure, high output voltage as well. This may result in Equipment & Supplies damage were available. But if the car battery is the power source. I do not have to worry about this problem. Usually because the battery voltage is 12 to 13.5 volts only. Which voltage of this size can not increase the output voltage to cause harm to any of our electrical equipment. Which voltage output power. Will vary according to the input voltage specified in Table 1.
(loaded use the full power 200 W).
Table 1
Input voltage (DCV) _____________ Output voltage (ACV)

12_____________ 194
12.5_____________ 205.4
13_____________ 214.3
13.5_____________ 223.0
14_____________ 231.5

The parts list
Resistors (All size of 0.25W 1% Unless Specified)
Quantity_____________ Value_____________ Position
1 pcs__________________________ 15K_____________ R1
1 pcs_____________ 22K_____________ R2
1 pcs_____________ 2.7K_____________ R3
1 pcs_____________ 10K_____________ R4
1 pcs_____________12K _____________ R5
1 pcs_____________4.7K_____________ R6
1 pcs_____________47K_____________ R7
1 pcs_____________0.01 ohms/5W_____________ R8
1 pcs_____________1K (PTC) _____________ R9
1 pcs_____________8.2 ohms_____________ R10
1 pcs_____________16.9K_____________ R11
1 pcs_____________33 ohms_____________ R12
2 pcs_____________22 ohms_____________ R13, R15
1 pcs_____________18 ohms_____________ R14
1 pcs_____________1K_____________ R16
1 pcs_____________470 ohms_____________ R17

Quantity_____________ Value_____________ Type_____________ Position

2 pcs_____________ 220uF/16V _____________ Electrolytic _____________ C1, C2
4 pcs_____________ 220nF/50V_____________ Polyester _____________ C3, C7, C9, C10
1 pcs_____________ 1uF/50V _____________ Electrolytic _____________ C4
2 pcs_____________ 33nF/50V _____________ Polyester _____________ C5, C6
1 pcs_____________ 2.2uF/50V _____________ Polyester _____________ C8


1 pcs_____________1N4148_____________Signal Diode_____________D2
1 pcs_____________1N4002_____________Diode_____________D3
1 pcs_____________18V/1W_____________Zener Diode D4
2 pcs_____________BY299_____________Diode_____________D5, D6
1 pcs_____________LM393N_____________Op-amp_____________IC1
1 pcs_____________SG3526N_____________other_____________IC2
2 pcs_____________IRF540_____________Signal Diode_____________Q1, Q2
1 pcs_____________LED_____________3 mm_____________D1

1 pcs_____________ Transformer 220V/12V-0-12V ; 200 watts
PCB, metal box, Wire, plug 220V etc.

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This Post Has 48 Comments

  1. What about the Transformer making?

  2. Hi Salim, again.

    The transformer is normal size 200 watts or 200VA.

  3. Please kindly inform type of power mosfet
    thank you

  4. I like this website electoric

  5. this webside is excellent because in other websides are not directly disply but here detaileld information got it… sallute and thanks

  6. Good Day,
    If I will add more MOSFET at its output, will it increase it’s capacity? Can I increase this up to 500 watts?

  7. thanks for posting this sg3526 inverter circuit. pls can it be converted to signwave?
    I need signwave inverter. can you help me. Umesi.

  8. hey, can you give me a link of a 1K (PTC)resistor or a photo how it looks? I can’t find it to buy.

  9. Good Day,
    I just want to ask that is this inverter is capable to charge the battery automatically?and when the power goes dc will it be automatically supply the power?

  10. does inverter increse\multiple\boast power after convertion or does its output depend entirely on the input from the battery i.e the amps and voltage from the battery

  11. Size Kits ?

  12. Dear EC projects , Really it is good help for me how to make the inverter circuit, but give in depth ratings of Transformer & battery.

  13. is there anybody had tested this ckt?

  14. Can u public schematics ?

  15. Hi,Milos
    Thanks for your feedback.
    Yes I can but please read at “note” because this project have many page.

  16. Hi Admin, May I Use 12v 100Ah lead acid Battery(Which commonly use in home inverter)with this circuit. Please Reply ASAP.. My Circuit is ready I just Want to know about the battery..

    Thanks & Best Regards
    Anjan Chatterjee

  17. Can I use vero board to make this circuit or in copper clayed board …….how to make it in copper clayed board

  18. Hi, Sam
    You can make on normal pcb.
    This large size view so clear.

  19. Can I use a 12v 7ah battery for this inverter ……… long does it gives backup…….

  20. How many amps of transformer can I use for 220v ac

  21. How many amps of transformer you are using to give 220v ac………….and can I use 12v dc 7ah battery……….how many ah is the best

  22. hi sir
    am naresh how many amps this transfomer use?

  23. Hi,sam
    Thanks for your feedback.
    If we need fully watt.
    200 watt output = 200 watt input.
    12V at input,
    so current input about 200/12 = 16A
    or use 16A transformer.

  24. Hi,S.Naresh
    Yes, You can use 7Ah battery.
    If you need full power you need to use 80Ah
    for 5-8 hour use.

  25. hello sir i am from pakistan .i am interesting in technical works .i like your circuit diagram .i will try it. please will u guide me ?

  26. sir i need 800 va ups circuit

  27. sir will you please send me its schematic circuit diagram

  28. Hi, asim
    Thanks for your feedback.
    Please read note: in this article above.
    Read all link article about this project.

  29. please sir, can you help me make inverter plane and send it to me here in Nigeria? like 500watt and how much is going to cost me, send me an email for reply thanks

  30. pls sir, i need auto-power change-over circuit diagram

  31. hello sir I need add fuse for protection & also guide me how to prevent overcharging of battery

  32. Is ac i/p for charging the battery is same for ac o/p. plz guide me how to install in wiring

  33. hi,please guide about pure sine wave inverters and short circuits protections

  34. Thanks for this information

  35. Can I get circuit diagram for 12v 150ah battery charger?

  36. Hi rashid,
    Thanks your feedback.
    You need to prints with 300 dpi per inch scale.

  37. Hi, multi-amp transformer should be?

  38. Sir, in the above circuit we are supplying 12 v battery to transformer..But how is it possible for the transformer to operate when DC is applied?

  39. Can i useSG3524 instead of SG3526N?

  40. It is okay if i use 3A transformer?

  41. very very understandable.thanks
    plz keep it up

  42. Can i use 5 amps transformer

  43. Sir Can u send me the schematic of this circuit..thanks…

  44. Sir please send me the circuit diagram of the 300 watt lnverter

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