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24 Threads found on 220 12 Transformer
I have built my 12 to 220 modified inverter (1000 watt). I use ATMEGA8 and IRF3205 in my design. I am sure about 220V and 50Hz on output. My design almost look like this. 107891 In addition to feedback signal. My problem is : this inverter Destroyed my three home fans (its driver board use triacs). 1078
I want to stepdown 300Vac 50hz to 5v(peak)ac but i have only 220v to 12vrms transformer available can someone suggest how can i use this 220v transformer with 300v. I tried using a potential divider to first divide the voltage but it doesn't works since the primary winding of transformer comes in parallel (...)
hi i need a Electronic circuit to convert 220 to 12 for turn on 3 led thanks
I'm learning how to make an inverter, and need help figuring out what is normal and what is not, and fixing the latter. The basic layout is - make 320V from 12V, using a high frequency, small size ferrite transformer, rectify the 320V, turn them into AC with a full bridge. It splits nicely into two parts, and i want to debug them separately.
Are there any practical ways of getting mains-style 220V AC from a source giving between 1 and 2 volts? The source can provide hundreds of amps, the output power level needs to be around 10 to 50W. Only non-exotic idea i have is to use some sort of low power boost/charge pump IC to provide higher voltage to power the logic and MOSFET gates, the
remember conservation of energy? Well, for an ideal transformer, the power into the primary = power out of the secondary. Since you want 220*5=1100 watts out, you need 1110 watts in, or 1100/12=92 Amps. But since you can't buy an ideal transformer, you're going to need to put more than 92 amps in. You need to know the efficiency of the (...)
Hello guys ! I simulated a modified sin wave inverter in Proteus, the out is perfect 220v but when i attach a load it voltage drops to 1v. I dnt know why is loading effect happening in transformer. Kindly check the schematics and give me some solution to solve this problem : 74582 These are the outputs with and with
Dear Experts I want to design a pic micrcontroller based switch mode(Ferrite Core transformer) Based 12 Volt DC to 220 Volt Ac 50 Hz Inverter. today i have downloaded a circuit from this forum but i dont understand. can any one help me to understand the circuit as well as required Microncontroller Code and also ferrite core transformer (...)
I hve read the thread regarding Full Bridge Inverter with MOSFET and IR2110 gate driver but unable to understand that how the 12 Volts (single Batter) can be raised to 120/220 Volts without step up transformer.Any one should explain it. Thanks,
This project is new for me however I designed lot of square wave inverters using transformers(12+12/220) but looking your project using full bridge with MOSFETs and IR2110 pure sine wave in which you have not used transformer,how voltage from 12 volt(single battery) will be raised to 220v there any one to make me (...)
Can someone help me: I am building a 1000W full bridge inverter using 2 self oscillating full bridge drivers IRS2453D. The first irs2453d converts 12v dc at high frequency of 10kHz to 12v peak to peak, then a transformer to step it to 220v then a rectifier to get 310v dc, and finally another urs2453d to get 220v ac. 1. What are the step up (...)
It will work although it is not very efficient. Expect to get less than 220V out and do not use it when the load is frequency sensitive as it will not be stable enough. The circuit is basically a multivibrator driving power transistors. For simply driving a lamp it should be OK though. Brian.
i am confused about max load current if i have transformer input 220 V / output 9 V how can i know how much max output current can supply? and the samething if i have solar cell supply for example 12 V DC and i dont have datasheet for it how can i know experimentally check the max output current can supply and hence the watt of it thanks
i have a step up 12 v to 220 v transformer.I have the question that is 12 volt input rms or peak to peak. I mean should i have to apply 12 v rms or 12 v peak to peak to primary of transformer???
Hello all, I am in need of some help. I am in need of a transformerless power supply will allow me to have a universal ac input 110/220 volts and an output of 12 Volts at 3 amps. I had a couple of old monitors around the house that were auto switching. I traced out the ac portion of one of the
hi i want to design a supply without using a transformer the supply is 220/12 i thought to but a rectifier then a resistor then a zener 9v what i want to know does the supply can supply much current and is it stable "a rectifier then a resistor then a zener " will put you in troble and it is not safe. You may harm
If you can't find 12-6-0-6-12 configuration you can always use 2 smaller transformeres 6-0-6 and connect their primary windings in parallel (220V) and their secondary windings in series .. Here is an example of multi-tap transformer from JAYCAR:
Hello, I need a circuit for 5v/12v DC supply from 110/220 AC. The common way is to use a transformer, a bridge and a voltage regulator. I know this way, but it is needed to be done without using trans becasue of its weight. The maximum current is 500 mA. A friend told me to use HV capacitors instead of Trans to reduce the AC voltage, the other p
transformer - No centre-tapped (shown below). Look for 240/12, 230/12 or 220/12 transformers. If you can find 240/9, 230/9 or 220/9, it would be fine too. If you use a transformer with centre-tapped, you can instead use a full-wave rectifiers (using 2 diodes only), the centre-tapped terminal of the (...)
Here you have an example of 220ac/12Vdc smps: However, if you don't feel confident about HV ferrite transformers then you should consider a step-down transformer 220/24Vac + bridge + smoothing cap, and a switchmode dc/dc converter build around sme 5A IC, such as for example LM2768: www.national
Electronic transformers 200 W shematics (220/12 V) Feron transf. needed. Can anybody upload it?
You can try this method: connect a small 220/12 (or less) transformer between each phase and Neutral (I asume you have access to N or E, in isolated circuits the primary should be rated for 400V and connected betwee phases). If you want to monitor each phase separately you will need 3 circuits with OR function at the final stage. Rectify the volt
For low power (< 50W) you can use sinwave generator (eg. ICL8038) and just amplify this signal using linear amplifier and 12/220 transformer connected opposite way around. Tha output will be nice sinewave but unregulated ie. depending on load the voltage may drop 5%...15%.... If your power requirements are higher I would't bother. There is no si
I looking for power supply circuit that input 110to220V AC output 12V DC 1A but don't use transformer like mobile wall charge, notebook.. etc. a tiny circuit is very good. How you call this circuit ? I don't know keyword to search. Because I am Thai. Have a good day.