Inverters?

Can someone please try to explain how I can re wire a microwave transformer (or any other Transformer) to be used in a custom inverter. The input is 12 volts and the output needs to be 120 volts. Pictures would be great, thanks in advance.

Question by arenavles   |  last reply



invert polarity? Answered

Hey guys, please could you help me?  i trying to do external battery pack to run pedalboard with 4 effects. As far as i know Boss pedals have center negative type of connection. Can pls somebody explain what does it mean? Whether it means that leads are inverted positive goes to the sleeve and negative to the tip? Or tip has to receive negative voltage of minus9V? thanks !!!!

Question by IgorA26   |  last reply


how to build an inverter

I want to know how to build an inverter upto 5kva

Topic by segge   |  last reply


inverter on a camera flash

Ive been studying the intertubes for a bit now and I cant seem to find an explanation on how a disposable camera flash works in detail. I mean I understand that it runs with two transformers, one at 300v output to charge the cap and the other to help discharge the payload through the xenon bulb run at 2000v output. but a transformer doesn't work with out a pulse or rapid continuous change in voltage. so how is it inverting to ac or am I missing something stupid

Topic by snowfox222   |  last reply


Square wave inverter?

I am building an inverter that will use a square wave pulse to drive MOSFET's at 50-60Hz. I have read and heard a lot of stuff that running square wave into a transformer is not a good idea, what I want to know how bad is it? Also will adding capacitors as seen in my image be able to smooth the square wave a bit to help the problem? If so what capacitance should I use? (About 200A input) (The 12V square wave is coming from paralleled MOSFET's)

Question by The MadScientist   |  last reply


power inverter: help? Answered

I have this power inrter, and i once hooked it up t a mac power supply converted to a benchtop power supply. i didn't know i yet, but the power supply was surging, and it started making he inverter smoke. i turned it off, but the inerter never worked again. can i reuse any of these parts to make a new one? i dont think it was the actual inverter piece, but one of the others p.s. this inverter was from a hp scanjet scanner

Question by zack247   |  last reply


Broken Power Inverter Answered

I have a sima 140 Watt power inverter, and it doesn't work anymore! I don't know why... I don't have much experience with inverters. Can someone help?

Question by martzsam   |  last reply


Transistor Voltage Inverter

I am a newbie and was hoping someone could assist me. Given the following schematic which takes a voltage of 12v and considers it off and a voltage of 2 volts and considers it on can someone tell me what changes would need to take place regarding capacitors and resistors (if any) to account for 20v instead of 12v? Meaning that when 20v is considered off and 2v is considered on.

Topic by TimothyE2   |  last reply


Scanner inverter outputs

I've just been wondering about the output of scanner inverters for a few projects, what kind of voltages and amperages are they outputting. I have a few little ideas but don't really know that much about their outputs, I gave googling and parts numbers a go but mostly found unrelated pages or had no luck with part numbers...

Topic by killerjackalope   |  last reply


Inverted color crosshair?

Hello robots. Is there any to get a small dot center of your screen that inverts all color behind it? Kind of like the Minecraft crosshair, except it is always shown in the foreground on top off all programs. My little bro plays like this on his t.v. but with small piece of tape in the exact center. It would be really useful while playing FPS games. I know I'm making things complicated, but I'd rather not have adhesive residue on my monitor.

Question by unominame   |  last reply


Transistor Voltage Inverter?

I am a newbie and was hoping someone could assist me. Given the following schematic which takes a voltage of 12v and considers it off and a voltage of 2 volts and considers it on can someone tell me what changes would need to take place regarding capacitors and resistors (if any) to account for 20v instead of 12v? Meaning that when 20v is considered off and 2v is considered on.

Question by TimothyE2   |  last reply


How to biuld a sine wave inverter?

I need to build a sine wave inverter but i do not have the schematics.I need an assistance in this project.I can build a square wave inverter but it makes noise in the fan and does not surport my 29 inch television causing it to have frequent low current  problems.I heard that sine wave inverter is more efficient for home appliances.Please can some one help me with a simple diagram to build my own efficient sine wave inverter.Thank you all.

Question by    |  last reply


Is it possible to run a power inverter in reverse? Answered

I'm curious as to whether supplying power to the ac out side would result in the dc in side putting out power or the board burning out.

Question by acetyleneblues   |  last reply


need circuit diagram for a sin wave inverter?

Good day honorable members pls can anyone help me i want to build an inverter and i need a circuit diagram for an 50Hz 24v to 220v sinwave inverter. Pls can anyone suply me with an circuit diagram for an 2KVA and a 5KVA inverter pls pls help me thank you in advance

Question by rahvin1223   |  last reply


How do I make a 240volt inverter from a microwave transformer

Good enough for power tools I saw one on the net somewhere and can't find it. I got a microwave from the tip but it was too good and so it has a new life in the kitchen.

Question by tezzz   |  last reply


can i test a 90w inverter with a 1amp psu and my load is a 13w light 110v? Answered

I have tested an inverter with a cable modem psu but not lighting the light, is it due to PSUs 1amp rating or simply Inverter is faulty, I don't own a car or Battery for that matter yet.. 90w inverter 13w light 1 amp power supply.. thanks

Question by celalboz   |  last reply



hi, i am in ghana and interested in building this remarkable inverter. Answered

I have been following the question and answer section and had most of the points. my questions are 1. what is the use of T1 and 2. how do u program the IC

Question by aakareng   |  last reply


i have a blackand decker electromate 400 i took it apart for the inverter but the rockerstwich is broken

How to i jumber it to on so i can see if the inverter works

Question by jlc30   |  last reply



what will happen if i give dc 12v and 5 ampere to 2000watt inverter , how much ac ampere should it produce ?? Answered

I now what inverter does it convert dc to ac , i also know that it can convert dc 12 volt to ac 120 -110 volt but  the thing from which i m confused with is that what will happen to the ampere for example i have a 12 volt 5 ampere battery if i plugged the battery to 2000 watt inverter should it produce 2000 ac watt with just 12 volt and 5 ampere battery or i have to give more dc ampere to the inverter................ means can inverter    convert dc less volt to ac high volt  and  with also convert dc less ampere to ac high ampere   or will it convert  dc low volt to ac high volt without changing the dc low ampere and need more dc ampere or will it convert dc low volt to ac high volt with decreasing the dc ampere....

Question by MuhammadK19   |  last reply


How to make a 6vdc to 200vdc converter?

Hello, i am a bit confuse about how to convert 6v dc to 200 v dc having a least power output of 25watts. is it possible?

Question by ubdussamad   |  last reply


5000 watts power inverter

5000 watts power inverter with the circuit diagram using SG3524

Question by santos4eva   |  last reply



How to make a inverter and battery of our own?

I want to make inverter and battery at home.If we make at home whether its cost will reduce when comparing with outer outlets.Please tell me in brief if possible.

Question by anilr13   |  last reply


MANUAL OF POWER EXPRESS INVERTER/BATTERY CHARGER

Could any body help me with the operation manual of power express inverter?

Question by austinbby   |  last reply


UPS battery backup as car inverter?

I hope this isn't a dumb question, but if I were to take an old UPS unit, remove the battery, wire a 12V lighter socket plug to the battery cables in the UPS, and plug it in to the car, would it convert the 12V DC to 120V AC while the car is running? And if it worked would it draw too much power or damage anything? I wouldn't use this to run anything with a motor, just a laptop charger and maybe a light. Thanks! :)

Topic by 500FPS   |  last reply


What is the simplest yet reliable inverter (NOT) gate setup?

What is the simplest yet reliable inverter (NOT) gate setup, in your opinion, for feeding its output to a 555 timer's trigger input?

Question by raftor   |  last reply


how do i make a laptop inverter work?

hi i am wanting to be able to run a laptop inverter off a few batterys the inverter looks like the one in this instruclible https://www.instructables.com/id/How-to-Fix-an-LCD-backlight-power-Inverter-Using-/step8/Bridge-the-fuse-AT-YOUR-OWN-RISK/ i was wounderin what cables i would need to put power on ? i an not wanting the screen to work, just for the back light to glow, please help

Question by rug 


Noob Q about inverter for an ornithopter

I was looking in the back of my Jameco catalog the other day and they listed a product called "Muscle wire". It's apparently a nickel-titanium alloy that shrinks as it heats up. It occurred to me that I could flap ornithopter wings with it (a really small ornithopter). I was trying to figure out how I could switch voltage from one pair of wires (the flap UP wires) to the other pair of wires (the flap DOWN wires) without a microchip. I came up with something I'm sure wouldn't work involving a couple transistors, a diode and a cap. Today on wikipedia I figured out that what I was doing was something close to an inverter.So here's the question: Anyone know of a simple switching circuit that runs on a/c power and does not have square-wave switching characteristics?I'll keep researching this myself, but sometimes 'tis quicker to ask the big-brained and kind hearted (you know who you are).

Topic by royalestel   |  last reply


Connect power inverter's AC output to my home AC power

How can I connect a DC power inverter's AC output to my home AC power without a transfer switch so the inverter does not get damaged.  Connect it directly or with what ?

Question by jehardy   |  last reply


can I use AA battery bank to power an inverter (3000ma 12v)? Answered

Can I use AA battery bank to power an 50w inverter (3000ma 12v)?

Question by celalboz   |  last reply


Current limiting high voltage - ccfl inverter help ? Answered

Okay as my first question i'll say hi first , and Darren from Ireland here , fair "know how" of electronics and how things roughly work. I have a 32inch TV who's inverter board is toast (okay its going on and off straight away) , I know its getting power from the psu board as there is little or no voltage drop when I flip the TV on and the lights fire up. I have asked 3 people at work (Electro techs at work) and they all say the same thing , replace the board , its too much work (I think there just lazy) and also they all say they would need the data sheet on all components or the circuit diagram. So well me with my stupid head wants to try and have a stab and getting a free TV. So I have ordered a CCFL inverter power source for a neon case light , which I intend to use just to see if any one bulb is gone as im not sure if that is what could be kickin the inverter off. And the other thing i have ordered is a "Universal inverter for 10-30v 4 bulb 17-24inch" from ebay. So the question is , if one bulb is gone and well i doubt i can order a bulb like this and replace as that would be end of tv if i open than panel . is there a way to simulate that bulb working in any way to stop the inverter going off because of one bulb. And the other question is , if I want to use this universal inverter , what is causing it too be a 17-24 inch only ? From what I understand is if I am wrong correct me please , that the larger bulb would burn the driver chips/fet's drawing too much current. So would there be a easy / safe way to just limit the out put so they will run but a little dim (as the tv is intended to be used in a dark room any way) Any ideas welcome , and for what ever comes up , Thanks !

Question by dwoods-1   |  last reply


What inverter should I use to tie in 3 60 watt panels into an outlet? Answered

I am trying to find a fairly cheap inverter to tie my panels into my home. I am planning to add a few more panels in the future. I am not going to add a battery bank. Thank you.

Question by pokey02   |  last reply


Grid tie solar inverter power from a fixed voltage source?

Hello there! We have a 4Kw solar system installed at our home. We also happen to have 2 seperate circuits (ie 2 electricity meters). Annoyingly the solar panels are installed on the circuit that we don't use much electricity off so most of the generated electricity flows into the grid and (I know it's selfish) we don't benifit from it at all. There happens to be one lonely socket next to the solar inverter that is powered off the other electricity circuit and I'm fairly sure that the two circuits are on different phases. This is what I wanted to do and I was hoping someone might be able to validate this: I install a 240v AC to 24v DC converter (PAK650-24) and then an inverter to convert this back to 240v AC to supply that lonely socket where we need the power. Our solar inverter has a clever power detecter that switches a relay when production goes above 1Kw so I would connect this circuit to that relay. I also wanted to use a solar grid tie inverter from ebay because they seem most reasonably priced. They do however have a MPPT algorithm which is where I am not sure how it would react to a voltage source. Might anybody be able to tell me whether it would be fine to do this and most importantly about fixed voltage sources and solar grid tie inverters (which aren't really meant for fixed v sources). Many thanks, James 

Question by fotherby   |  last reply


IS 12V SUPPLY FOR PWM CONTOL INVERTER IS FROM OUTSIDE SOURCE & WHERE TO CONNECT IT'S NEGATIVE(OF OUTSIDE SUPPLY )?

IS 12V SUPPLY FOR PWM CONTOL INVERTER COMING TO THE I.C 7808  ,APART FROM TRANSFORMER, IS FROM OUTSIDE SOURCE & WHERE TO CONNECT IT'S NEGATIVE(OF OUTSIDE SUPPLY )?

Question by ER. ARJUN SHARMA   |  last reply


can i use a 110v inverter connected to a 2000w travel converter to get 220v and power a 220v fridge Answered

I might need to do this when there is an electric outage, can we connect an SLA to inverter (110v) to a converter people use when they travel to 220 v countries?

Question by celalboz   |  last reply


i need to use my 60w 127 vac sodering iron in my car as in 12 vdc so i need a cheap easy to make inverter any ideas?

Later i would also like a inverter that could handle a 950W 127VAC angle grinder also cheap and easy (ish) to make

Question by cassiorichiniti   |  last reply


Can I use MJ3001 in place of 2n3055?

I want to build this inverter circuit, it uses 4 2n3055 transistors. Can I use 2 mj3001 transistors in place of that?

Question by Ankan Nayak   |  last reply


How many MOSFET's do I need? Answered

I am building a 2000W inverter powered by a car battery at 200A and I am unsure what to look at to find how many MOSFET's I need. Do I look at continuous current (in Amps) or power dissipation(in watts)? If it's power dissipation might you be able to suggest a MOSFET with a high power dissipation that is under a continuous current rating of 75A?

Question by The MadScientist   |  last reply


How does a capacitor charger circuit work in a disposable camera ? Can I build it from scratch ? Answered

I wanted to ask this question for a long time... In every coil gun instructable there seems to be a readily prepared circuit that changes DC into AC, steps up the voltage and then changes it back into DC to charge a bank of capacitors. My guess is that the circuit contains an inverter, transformer and rectifier... Am I right? My question is, can I build that circuit from scratch ? If yes what materials do I need ? Thank you.

Question by Eunix   |  last reply


El Wire AC inverter

El wire is cool and all but all the circuits that come with them are so half assed made it isn't funny. I have yet to get a circuit that is up to spec's that even closely adheres to any of the soldering tips and ticks, good soldering joints, anything. crap crap.  i have the components but the board is whack. how do you go about making a AC inverter for Elwire?

Topic by Chingasman   |  last reply


ccfl inverter, samsung sic320?

Hello, my laptop recently died, i killed it, anyway, i have salved some stuff, one of which is the cold cathode and inverter assembly, except, i cant get it to light up, i tried everything, i hope i didnt kill it.  It is a samsung sic320 inverter board, if you hold it where the wires are facing up, from left to right in wire color is, orange, red, brown, and black, i dont have a camera, i killed it to expirementing, but just wanted to know which wires lit the cathode and at what voltage.

Question by cburgess7x   |  last reply


3 Phase inverter explanation?

I am trying to make sense of how to create a simple 3 phase inverter, but the design I have found requires the use of a PIC micro controller for pulsed width modulation to control the 3 half inverters in the image below. I do not have experience with this specific type of micro controller and am unable to find a simple explanation of how to set it up to do this, except how to connect it to the basic circuit at the transistor bases. Would anyone be able to explain to me how to wire/program/control frequency with the pic micro controller or an alternative method that would yield 3 phase power (0-120-240) because the manual and this page have be very very hard to understand to a beginner. I do not need any sort of feedback from the motor because the load will be constant and relatively small, and will most likely run it either at a constant or if easily doable linearly increasing frequency. Can someone PLEASE give me a good simple set of instructions on how to either replace this micro controller with something simpler or wire/program it to do this? Thanks!

Question by amelius   |  last reply


Inverting 115VDC to 115VAC. 75watts?

What would be the best low cost method for me to invert 115vdc to 115vac for a low 75watts bench experiment?

Question by rpshomeservices   |  last reply


How to test an Inverter battery?

Battery testing method in a layman's language

Question by manolr   |  last reply


DC --> AC Inverter Question

I just bought a 12vDC to 115AC power inverter. But it will shutoff when the voltage drops below 10v :/ Can I disable this? It's annoying as I'm running it outside of a car so I cant just start an engine to charge the thing.

Topic by acer5050   |  last reply


How to invert 3vdc to 3vac?

I have some 3vac motors for christmas lights that i want to use to turn small mirrored disco balls. I need to invert 3vdc to 3vac for this operation.  I will be using AA batteries and I can series/paralell the batteries to have enough current to operate. Is there an IC that I could use to do this? I want to do many for a wedding and each set will be located on a table. Superbright LED's  will supply the light source for the mirrored balls. Thanks Bob

Question by BiggBob2   |  last reply


Power Inverter or DSO Problem?

Recently bought 2000w power board to play around.  Sets DSO at 5mS/Div. The output frequency change intervally between 40Hz and 50Hz. Sets DSO at 10mS/Div. The output frequency stable at 50Hz. Please advice which once is the problem? Update June 1, 2017 1. ...do you have a load on the power supply ? With or without load, same results. 2. Try changing the scopes trigger level.. Getting same resulted too when changes the trigger level.  3. Measures with multimeter. Get 49.98Hz and this is normal. 

Question by GearUp   |  last reply