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10th October 2006, 22:28 #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

11th October 2006, 01:20 #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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11th October 2006, 01:20

13th October 2006, 03:13 #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 rewind 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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16th October 2006, 21:12 #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 510 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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11th January 2007, 10:01 #5
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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>?

12th January 2007, 15:59 #6
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ac inverter circuit
u visit the following web site i uploaded then circuit
http://www.electronicslab.com/proje...033/index.html
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12th January 2007, 16:56 #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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16th January 2007, 21:25 #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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18th January 2007, 12:49 #9
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scematic inverter 12v to 220v
You can go to this webpage for DCAC sinewave inverters:
http://www.electronicslab.com/forum...ic=471.msg1949
That I included in this thread:
http://www.edaboard.com/viewtopic.php?p=765941#765941
nguyennam

1st February 2007, 09:49 #10
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12vdc to 220vac
hello all.
my idea. small circuit easy.
_______________________
http://eanic.blogspot.com

1st February 2007, 09:49

8th February 2007, 06:46 #11
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12v dc to 220v ac
hi tayyabpak,
You try here circuit inverter 100W (very easy too).
http://circuitelectronic.blogspot.c...220v100w.html
goog luck. :D

9th February 2007, 06:38 #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 12VDC220VAC 250W. Please assist me in this regard with thanks for your early responce.

22nd February 2007, 09:30 #13
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12 to 220 inverter circuit
Originally Posted by ehsanelahimirza

13th March 2007, 20:36 #14
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ac schematic
Simple circuit.
1 members found this post helpful.

14th March 2007, 15:37 #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

8th April 2007, 17:27 #16
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12v to 220v converter schematic
for basic electronics user.
:D
Inverter 12V to 220V 100W
http://circuitelectronic.blogspot.c...220v100w.html

12th April 2007, 04:59 #17
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12v 220v inverter circuit
dear tayyabpak,
go to link http://www.edaboard.com/viewtopic.php?p=816970#816970
:D

12th April 2007, 04:59

12th April 2007, 06:32 #18
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inverter 12v to 220v 1000 watts schematic diagram
Originally Posted by ehsanelahimirza

12th April 2007, 07:10 #19
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?

16th April 2007, 04:36 #20
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220vac inverter
Have any of these been tried at 110120 voltages?... And...
What would I need to do to make it 110120volts? (use in USA)
Thanks
James
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