This video shows a DC to AC power inverter that has a regulatet output voltage, and there is no intergrated circuit used. The 50Hz square wave signal gets ge…
Schematic and notes: https://dl.dropboxusercontent.com/u/55950000/inverter.png the fan was actually going pretty fast, but the framerate of the camera messed…
Video Rating: 5 / 5
30 comments
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IcarusWingsofWax says:
February 2, 2015 at 12:56 am (UTC 0)
Does anyone know what song was playing on the radio?
AHMAD ALFAIFY says:
February 2, 2015 at 1:34 am (UTC 0)
Thanks Mr. Stefan , i will re built this Inverter and test it .
Like + Sub + Share = U
Eng.Ahmad Al Faify
Makkah
alamzeb khan says:
February 2, 2015 at 1:41 am (UTC 0)
The Lightning Stalker says:
February 2, 2015 at 2:36 am (UTC 0)
The bulb was flickering because of the way it was hooked it up. Light bulbs
need good contact in the bulb base or else they will flicker. The
vibrations from the music are enough to disturb the connection. I took a
look at your circuit. It is nice and simple. Very nice. Commercial units
have what is called an approximated sine wave. There is some “dead time”
where both transistors are off. It’s not easy to do with all discretes,
though. I used to drive mine with a PWM chip like TL494.
Đao Đinh Hieu says:
February 2, 2015 at 2:57 am (UTC 0)
có thể cho tôi sơ đồ va nguyen ly cua mạch dc không..
daodinhhieu93@gmail.com
Mrinfoone says:
February 2, 2015 at 3:31 am (UTC 0)
Did you make? where did you get from? what type off appliance?
djoanzoc says:
February 2, 2015 at 4:19 am (UTC 0)
Yeah Big ups!
14kukucka says:
February 2, 2015 at 4:52 am (UTC 0)
can you send me a shematic and pcb designs on server27792@gmail.com thanks
BloKK187 says:
February 2, 2015 at 4:57 am (UTC 0)
so schlechtes English hab ich schon lange nichmehr gehört
Rami Bou Shakra says:
February 2, 2015 at 5:38 am (UTC 0)
Do i need heat sinks for the power transistors if i will use this circuit
only for experimenting the output? (a 100 watt lamp may be connected)
Please reply as soon as possible
andres CL says:
February 2, 2015 at 6:10 am (UTC 0)
hello would like to know the components using the circuit and the
transformer that is kind to buy materials and diagram printing, if you can
put a download link yet, grateful, very good video I like and want to do
something similar, when thanks you answered my message, greetings
Ariel Torres says:
February 2, 2015 at 6:29 am (UTC 0)
hola amigo saludos . me han dicho que tu me puedes ayudar en amigos de
youtube estoy construyendo un inversor de voltaje con un amperaje bastante
elevado con unos 200 amperios o si tienes como echarme la mano con un
diagramita de como elevar el amperaje de mi coche ………. grasias =)
keettaylor says:
February 2, 2015 at 6:54 am (UTC 0)
The reason the efficiency is not that good is because mainly a square wave
is being used which is full of harmonics. ie the rising and falling edges
are very high frequency straight up and straight down. The frequency in is
the same as out but would be rounded off due to the magnetic field
collapsing on the change from pos to neg of the wave. As for hot
transistors attach them to a large piece of metal TIP trans have a metal
tag on them for doing this normally with a small screw hole about 4 mm.
dazling69 says:
February 2, 2015 at 7:48 am (UTC 0)
Holy Shit!!! You have 230V with bare conductors! What current protection
have you got? how on earth would you disconnect the power? and finally have
you got a death wish????
Raja Sunkara says:
February 2, 2015 at 8:25 am (UTC 0)
great video, nice application please put the circuit and its components and
if possible rajasunkara9@gmail.com thank you
ddgg00 says:
February 2, 2015 at 8:38 am (UTC 0)
it would just be easier to put a transformer on the ac side instead of
having that much dc going through it! btw great video
Stephen D says:
February 2, 2015 at 8:50 am (UTC 0)
nice thing i like this please show the circuit and explain that.
stephensacet@gmail.com
Herr Segelohrenbob says:
February 2, 2015 at 9:10 am (UTC 0)
großartig 🙂 sag, gibts den schaltplan irgendwo?
ThePillenwerfer says:
February 2, 2015 at 9:33 am (UTC 0)
Cool music.
Mr. Transistor says:
February 2, 2015 at 9:45 am (UTC 0)
can i see schematics for this? i have been trying to make this exact thing
for a while now but i cannot seem to find a simple one. your looks simple
andres CL says:
February 2, 2015 at 10:35 am (UTC 0)
hola quisiera armar uno igual al tuyo, me podrias pasar todo lo necesario
para almarlo, gracias muy buen aportee
Rich Reynoso says:
February 2, 2015 at 10:45 am (UTC 0)
Hi, I’m wondering if you were able to get the schematics together. I would
appreciate it very much!
ElectricM4n says:
February 2, 2015 at 10:48 am (UTC 0)
Hey, kommt da auch Sinus Spannung raus? Oder Rechteck? Ich versuche auch
gerade einen Wechselrichter zu bauen, allerdings einen ganz einfachen der
halt nur den Strom in die entgegengesetzte Richtung fließen lässt.
Jhun Thefaithtone says:
February 2, 2015 at 10:53 am (UTC 0)
sir gud day to you, gute idee indeed, i am interested with your invention,
may i ask for a clearer schematic diagram and complete parts. m e-add is
epdapiton@gmail.com thanks jhundaps
2124reading says:
February 2, 2015 at 11:03 am (UTC 0)
Do you have plans i could use to build this?
Alan sides says:
February 2, 2015 at 11:16 am (UTC 0)
THANKS SO MUCH FOR THE VIDEO!!!! IVE BEEN TRYING TO CHANGE THE FREQUENCY
FOR A CIRCUIT ALL DAY, AND I JUST HAPPENED TO FIND THIS! THANKS AGAIN!
Edmorbus says:
February 2, 2015 at 11:26 am (UTC 0)
Thanks for sharing Have you circuit schematic for me
NTG56 says:
February 2, 2015 at 11:48 am (UTC 0)
Sure, I put a link to the schematic with notes in the video description. A
few warnings: Use a very low duty cycle when first choosing how long the
transistors will be on/off. EG: every cycle they are on, have them off for
ten. Make sure you test everything on a current limited power supply before
trying it with batteries. There is no form of feedback for
frequency/voltage; could be fixed by having the micro monitor the AC output
via a resistor divider or opto isolator on another analog input.
Al yami says:
February 2, 2015 at 12:01 pm (UTC 0)
impressive !
NTG56 says:
February 2, 2015 at 12:29 pm (UTC 0)
Don’t have the circuit assembled in front of me, but I remember it was
proportional to the load and fairly efficient. I think it added about
10-20% overhead, so instead of 12V 1000mA in / 120v 100mA out, you’d see
something like 12v 1150mA in. IGBTs have super low resistance, so if you
get the timing right, you can get away with very little waste heat.