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  1. #1
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    hep 154 silicon diode

    hi all

    i need 12V DC to 220V AC inverter circuits.
    plz give me with small working circuits which r not difficult to make

  2. #2
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    inverter schematic watts

    Take a look at the attached circuit ..
    You can modify it to suit your needs, but the idea is there ..

    Regards,
    IanP


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  3. #3
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    12vdc to 220vac inverter

    Have you ever wanted to run a TV, stereo or other appliance while on the road or camping? Well, this inverter should solve that problem. It takes 12 VDC and steps it up to 120 VAC. The wattage depends on which tansistors you use for Q1 and Q2, as well as how "big" a transformer you use for T1. The inverter can be constructed to supply anywhere from 1 to 1000 (1 KW) watts.

    Schematic

    This is a schematic of the Inverter

    Parts:

    Part

    Total Qty.

    Description

    Substitutions
    C1, C2 2 68 uf, 25 V Tantalum Capacitor
    R1, R2 2 10 Ohm, 5 Watt Resistor
    R3, R4 2 180 Ohm, 1 Watt Resistor
    D1, D2 2 HEP 154 Silicon Diode
    Q1, Q2 2 2N3055 NPN Transistor (see "Notes")
    T1 1 24V, Center Tapped Transformer (see "Notes")
    MISC 1 Wire, Case, Receptical (For Output)


    Notes:

    1. Q1 and Q2, as well as T1, determine how much wattage the inverter can supply. With Q1,Q2=2N3055 and T1= 15 A, the inverter can supply about 300 watts. Larger transformers and more powerful transistors can be substituted for T1, Q1 and Q2 for more power.

    2. The easiest and least expensive way to get a large T1 is to re-wind an old microwave transformer. These transformers are rated at about 1KW and are perfect. Go to a local TV repair shop and dig through the dumpster until you get the largest microwave you can find. The bigger the microwave the bigger transformer. Remove the transformer, being careful not to touch the large high voltage capacitor that might still be charged. If you want, you can test the transformer, but they are usually still good. Now, remove the old 2000 V secondary, being careful not to damage the primary. Leave the primary in tact. Now, wind on 12 turns of wire, twist a loop (center tap), and wind on 12 more turns. The guage of the wire will depend on how much current you plan to have the transformer supply. Enamel covered magnet wire works great for this. Now secure the windings with tape. Thats all there is to it. Remember to use high current transistors for Q1 and Q2. The 2N3055's in the parts list can only handle 15 amps each.

    3. Remember, when operating at high wattages, this circuit draws huge amounts of current. Don't let your battery go dead :-).

    4. Since this project produces 120 VAC, you must include a fuse and build the project in a case.

    5. You must use tantalum capacitors for C1 and C2. Regular electrolytics will overheat and explode. And yes, 68uF is the correct value. There are no substitutions.

    6. This circuit can be tricky to get going. Differences in transformers, transistors, parts substitutions or anything else not on this page may cause it to not function.

    7. Check out this forum topic to answer many of the most commonly asked questions about this circuit: 12 - 120V Inverter Again. It covers the most common problems encountered and has some helpful suggestions.


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  4. #4
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    12v to 220v inverter circuit diagram

    hey use a lower voltage high current transformer....i think since u r using 12v ...use a 12 -0 -12 transtormer with high current rating like 5-10 amps....now use the secondary to step up voltage...always remember the power remains the same only the parameters voltage and current changes.....


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    •   Alt16th October 2006, 21:12

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    12dc to 220ac

    Hello!! can someone pls tell me if this inverter schematic diagram is a working diagram>? does it produce sinewave? and how much watts it produce>?



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    ac inverter circuit

    u visit the following web site i uploaded then circuit

    http://www.electronics-lab.com/proje...033/index.html


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  7. #7
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    dc to ac inverter schematic

    haf seen tis diagram before. but dunno if this diagram works. haf u tired it before? and how to convert to sinewave?


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  8. #8
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    circuit schematic 12v 220v

    none of these is a sin wave generator

    theseare square wave generators

    i made one and it worked also but

    the problem i got that due to heating effect components (capacitors,resistors)were lost

    resisitors can be replaced by high valkued but dont know how to save capacitor fom burning


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  9. #9
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    scematic inverter 12v to 220v

    You can go to this webpage for DC-AC sinewave inverters:
    http://www.electronics-lab.com/forum...ic=471.msg1949

    That I included in this thread:
    http://www.edaboard.com/viewtopic.php?p=765941#765941

    nguyennam



    •   Alt18th January 2007, 12:49

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  10. #10
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    12vdc to 220vac

    hello all.
    my idea. small circuit easy.

    _______________________
    http://eanic.blogspot.com



    •   Alt1st February 2007, 09:49

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  11. #11
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    12v dc to 220v ac

    hi tayyabpak,

    You try here circuit inverter 100W (very easy too).

    http://circuit-electronic.blogspot.c...220v-100w.html

    goog luck. :D



  12. #12
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    12v inverter circuit

    Dear eanic,
    The link you have indicated is not working. Can you suggest me an easy approach to build an inverter 12VDC-220VAC 250W. Please assist me in this regard with thanks for your early responce.



  13. #13
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    12 to 220 inverter circuit

    Quote Originally Posted by ehsanelahimirza
    hi all

    i need 12V DC to 220V AC inverter circuits.
    plz give me with small working circuits which r not difficult to make



  14. #14
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    ac schematic

    Simple circuit.


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  15. #15
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    12v to 220v converter circuit

    That is really not a simple circuit but really a very old technique, about 30 years or longer. It is really funny if anybody uses it nowadays.

    nguyennam



  16. #16
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    12v to 220v converter schematic

    for basic electronics user.
    :D
    Inverter 12V to 220V 100W
    http://circuit-electronic.blogspot.c...220v-100w.html



  17. #17
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    12v 220v inverter circuit




  18. #18
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    inverter 12v to 220v 1000 watts schematic diagram

    Quote Originally Posted by ehsanelahimirza
    hi all

    i need 12V DC to 220V AC inverter circuits.
    plz give me with small working circuits which r not difficult to make
    re: i have tried my hand on this circuit and i found it alright. the frequency is very stabl



  19. #19
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    12vdc to 220vac converter

    Do you have the circuit values? The IC's looks like a 4060, 4013 and 4047 but what is rest of the values?



    •   Alt12th April 2007, 07:10

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  20. #20
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    220vac inverter

    Have any of these been tried at 110-120 voltages?... And...
    What would I need to do to make it 110-120volts? (use in USA)

    Thanks
    James



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