Wireless electricity transmission circuit
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- Опубликовано: 17 окт 2024
- In this video I will show you how to make a simple circuit to wirelessly transfer electricity. Go to this link to find out more details on how to make this project: www.instructabl... Anyone is welcome to make suggestions for improvements. Good luck with the project!
For the circuit credits to : Rimstar's awesome video: • How to Make Wireless T...
Link for the items:
Magnet wire: amzn.to/2mtn4ah
Also credits to Slider2732 for first creating the circuit : • SWES 2 - Simple Wirele... .
Head on to their channel to learn about a lot more circuits!
Items:
Magnet wire: amzn.to/2wg6nqh
Transistor: amzn.to/2wQGm2z
LED: amzn.to/2iHkGzg
Hello, I’m beginning to learn about this... could you please explain why you did 30 and 15 turns when coiling? Does it not matter how many turns you make or is their a math that needs to be followed?
Hope to hear from you soon, thank you!
Hello, this is an old project so I do not remember the exact specifics. However, the schematic is incorrect. Both coils are 30 turns, however the coil connected to the transistor (the transmitter circuit) has a center tap at 15 turns. So basically there is a section of the wire that is uninsulated at 15 turns. The battery is connected to that center tap of the coil. One end of the coil connects to the resistor, the other end of the coil connects to the transistor. This is done to ensure we can have a changing Voltage across the coil. The coil in the transmitter circuit and receiver circuit both have 30 turns. When they are close to each other they form an air core transformer, where the voltage across the receiver circuit is proportional to the ratio of the turns between the two coils (ideally). As long as the receiver is higher number of turns than the transmitter you shouldn't have a problem, this is an extremely simple and forgiving circuit. Hope that helps.
I tried it and it worked fine....thanx for the video. (Sanket from India)
Can you explain to me how the transistor and resistor simuate the effect of AC elektricity. And how on the receiver end the AC-DC conversion is done.
Good, This video helped me for my Science Exhibition.
Thanks. good one for beginners like me. please explain if you have any calculations to select coil type & turns for any specific current & voltage to transfer.
It worked. I eliminated the resistor. I used 0.35 mm wire. 30 turns. A 1½ V battery. BD139 transistor. My LED needed turning; seems it was on backwards. Good luck.
Good improvisation :)
Hi, I tried to build the wireless circuit according to your spec but for some reason it doesn't work. Any thoughts as to why? I ran out of ideas. The only difference is that I am using a 5mm green LED. Thanks.
Hi. I tried this and I want to ask you something regarding voltage of the circuit.
For my emitter coil, I wound the wire 5 times, made the center tap and wound the wire 5 more times.
For the receiver coil, I wound the wire 10 times.
I used a 1.5v AA battery and connected it to the emitting circuit, and connected a multimeter to the receiver circuit.
However, I got some bizarre readings, up to 8v.
Can I know why this is happening?
I've tried this video for 5 times.. Using 2n2222 transistor and using 2,2 resistor, also using 1,5 volt battery. I also make the copper wire 30 turns (15 turn + 1loop + 15 turn) as same as yours, i've checked the + and - on the battery and it was same as your schematic.. But why do my enamel doesn't want to create a magnetic field.. Please help
yes! it worked after a long experiment
thanks!
but now I want to increase the distance between the coils
what is the max distance?
Increase number of Turns...
Not really... the only way to *greatly+ increase the distance (and transmitted power) between the coils is using resonance, as Tesla demonstrated decades ago.
If interested, search for "Wireless Resonant Energy Link"
The number of turns, frequency, and power all effect the distance
Will it work confirm??
Carson is it you?
Will the size of the coil affect the range? Like the bigger the coil (in diameter) the wider the range or vice versa?
I can't seem to get mine to work, whats the voltage needed to turn your LED on? The LED's I have need 2V to turn on, but when I turn my source up to 2V-2.5V the chip starts to get super hot and burns out, any suggestions?
Hi! Does increasing the number of cells (or) type of the cell used increases the range of induction?
The thing works on EMI principle, as far as i know. how does induction occur for a constant voltage?(you used 1.5v AA battery )
I might not be able to explain it well, so I suggest you to watch this video ruclips.net/video/0GVLnyTdqkg/видео.html . Rimstar has fantastic explanation, so it should clear your confusions.
Hello I am going to fix 12 volt battery to this project so please can u tell me resistor no. to be used for this 12 volt circuit.It is same circuit which I'm going to make.And thanks for the nice project.
I like the project, but I have a stupid question. Will the transistor overheat if the battery is in the circuit over a certain period of time?
Micah Rambadt Don't worry, its not a stupid question. Based on the type of transistor, the battery and resistor you use, it might heat up the circuit over period of time. Do not keep the circuit turned on for more than 5 minutes in a go, cause it drains the battery and heats it up sometimes(The transistor would definitely heat up, the battery might heat up too as batteries have internal resistance) . Also if your transistor overheats, you could increase the resistance of the resistor and use heatshrink or transistor with higher amp rating. Anyway good luck and thanks!
Is it necessary to use insulated wire?
sir...I only ask that ....which wire is sufficient to do this project...
THIS IS VERY USEFUL TO MY SON'S PROJECT WORK, THANK U VERY MUCH....
hey man its really cooool! it helps for my science project thanks a lot man
will a 0.1 mm magnet wire work with 30 turns for both the primary and secondary coil?
Yeah
Can you know the working frequency? How to create that frequency, based on your circuit diagram? Thank you. I am new to power electronics.
Its almost impossible to know it without other technologies. The design, the wire size and how you coil the wire can vastly influence the working frequency . Sorry.
Superb demonstration. Thanks.
Sir can i use adapter instead of battery??
the schematic shown in the video and the actual assembly are not the same. because schematic shows both coils have two ends, but u used one of the coils having three ends.
sir...what type of gauge wire is used to experiment... plz..reply quickly any one
May I ask what is the use of the transistor in this experiment and why did you choose the 2N3904 type of transistor but not others. Thanks.
hello....? any help please?
Dipper J. Drust transistor are use to amplifi a weak signal for example like he is doing he is using the transitor to amplifi the current through the coil in other words it will help to induce more current to the other coil by a magnetic filed produced by the current this is how basically transformers work to step up the voltage or to step down the voltage....
U can use any power transistor NPN , check out my video How to make it using CFL ( ... Its components )
Oh, thanks guys!! Thank you so much!!
Can we use just two coils without transistor and resistor and make it work with AC?
Thanks for confirming
what well happen when your done and you put both coils together will it burn out
Well I tried putting them together, the only thing that happens is the light get really bright. The peak voltage produced from the oscillation is really high, high enough to burn the LED. But since voltage is oscillating, it doesn't always stay at the peak voltage. At times the voltage drops to 1.5 volts, at other times it could raise upto 12 volts! Overall the oscillation balances out the voltage, and keeps the LED from burning. Also the current isn't enough to damage the LED. :)
can we increase the power an one more thing that i have made round 15 and 7 is this ok
What about combining wireless transfer with a joule thief to allow a detachable LED to burn a long long time when connected. Maybe a coil doing double duty ?
Great Job. The only video with a schematic!
+Will Tirad Thank you!!!
can i use transistor which i got from mobile charger pls tell?
Another question, what is the purpose of the transistor? I know how the transistor works, but I am unable to understand what is the use of it in this circuit.
+MrAgentMooshroom Oscillator
can we use a magnet to increase its range
Hey can it used for charging mobile and if so what transistor to use for 5v and 1 amp input and output
Hello, can I use two separate wires to make one coil.
I have two pieces of wire.
Yeah, just remember before you start coiling, join the two pieces of wire together and keep coiling.
yes i did it..
can we incrase the voltage or use 9v battery
sir i make a large one coil of 0.75m with 1.5v battery but it not work on small receiver coil?? why??
What kind of wire is being used to connect to the negative end of the battery
Wt should we do far distance wirless network bro? About 5 meters
sorry i got a silly question, why do you need to make a tap for the transmitter? what is the purpose of that?
+Xisheng Chen The tap is made to let the current flow in two opposing directions through the coil , so that their magnetic field and inductance allows the circuit to work.
Oh i see. thx! and one more thing, does the tap do anything to the transistor? Can i say that the collector and the base will need two sources to work properly, so you created two current flows, is that correct?
sir is it simple cu wire or magnet wire
Thanks bro its working.I used in my science exhibition
Glad to hear it worked.
Can we charge a mobile through it if we send 5V and 2A current in transmitter circuit
sanskar lamsal You need to send in maybe 3v at most to the transmitter circuit and use a resistor of about 10 k Ohms. Then in the receiver coil use a voltage stabilizer to stabilize the output to 5v DC. Remember, 3 volts in the transmitter circuit would be boosted by the transmitter, so the electricity in the receiver circuit would jump higher than 5 volts, so you need stabilizer.
Is it okay if I just use regular copper wire without insulation and without resistors? What could happen if I don't use magnet wire?
without insulation out would not work, the insulation keeps each turn of the wire from getting shorted with each other. so yeah you need insulated wire. and the resistor night be optional
+argha halder
so I don't need a NPN transistor and resistor?
You need the npn transistor, but you don't need the resistor. But having a resistor saves the circuit from burning
what if i don't have the exact same model of that transistor? can i use another NPN one with similar properties ?
TheStarryKnight yeah definitely, but make sure it has a relatively low collector-emitter saturation voltage .
thank you so much for answering, i compared the data sheets and they look very similar, 40V in yours, 45V in mine, i'll give it a try
by the way your content is great and easy to understand, you just earned a subscriber
will copper soldering solder PPA enamelled reel wire work???
What is the function of transistor in this circuit ? Plz tell me.
sir , which type of supply we get on secondary AC or DC
rupesh waychol No need to call me sir. And you get Ac on the secondary :) .
+AH Electronics it's OK . thanks
How can I find resistor no . for any project ? Thanks
what wire you use where i found it
What type of wire you use?
How can you make it work in a long distance? I notice it only work a centimeter apart?
nice . thank u . can u tell us all the components that we need to done this project
+Ibrahim ahmethan You need an non transistor, 1 k Ohm resistor, copper wire and led light and a 1.5 volt battery. Glad out liked it :)
How does it work with DC source? Does it not work by transformer principle?
Stephy J The transmitter circuit produces an oscillating magnetic field, which mimicks the behaviour of a rapid pole changing alternating current.
which type of transistor you are used i.e.npn or pnp?
NPN
AH Electronics can i use 23 awg wire
How does the Transistor change which path electricity takes?
Can I use 2222a or 2n2222 transistor for this
Would I be able to set this up to run on 5 volts to charge my phone
You would need a lot of other circuitry, because the LED is running on an oscillating voltage, if you feed your phone battery with such unstable voltage it would be harmful for the phone.
how to do same with any usb charger cable for mobile and also with 2.1 amp and 5volts....pls
Neet = Need
I will try that for my chemistry project
😂😂😂
To do this for your cell phone you would have a decent bit more things to consider and design. The things that come to my mind initially are figuring out, how far apart your induction coils would be, so the transmission coil and reception coil. They can only be so far apart depending on the strength of the magnetic field created via running current through the winding. There are multiple methods of increasing the strength of the field, such as increasing the current through the wire, the number of winding's (turns) of the coil itself, etc. Another important thing to note here is that the orientation of the winding's matters. Such as you can not have one coil turned sideways, then another turned up right and have it work, at least not well at all. The coils ideally need to be either in the same orientation with one another, or, multiple coils utilized to allow for various orientations of your collector coil. and one more thing to consider since were speaking of increasing current to increase the distance between the coils, is that the amount of received current will vary. If you have the two coils further apart for instance, or one turned slightly out of orientation then turned back into the proper orientation as another example, the total amount of received current will be changing constantly. This is important as your cell phone charging circuit is designed to only handle a particular range of input voltages. So in some situations it will be receiving too little voltage to charge the phone, or, in others, potentially to much and damaging or destroying the charging circuit of the phone itself (Assuming that you are wiring the reeving coils input via the existing cell phones charging port circuitry). So you would need to include a voltage regulation circuit or component into your design. These are not super complicated or expensive components but would be very necessary to safe guard your device. Anyway, I hope that you continue to pursue this design, and that it goes well for you. It is in my opinion an excellent way to learn and understand how electromagnetism functions in every day equipment. Also I am not a professional or highly trained electrical engineer or anything, so while everything I have mentioned is information I feel to be correct from what I have learned over the years, it may be to some degree incomplete or even incorrect so please have a read in Wikipedia or google about electrical induction. Good luck :)
what is the use of transistor and resistor. plz explain immediately
Does it have to be exactly 30 turns? If you have a bit less is that okay?
+MrAgentMooshroom It is okay as long as you have something around 30 turns
+AH Electronics is 27 okay? Because, the circuit doesn't function. Sorry, I haven't taken physics yet...
I'm using an 1.2V LED and twisted the wires together instead of using solder. The diameter of my coil is approximately one inch.
+MrAgentMooshroom no you can make minimum of 23.5 turns
+MrAgentMooshroom the wires are insulated so you have to solder them or burn the insulation of the ends
+tammali srinivas well.....that depends on gauge of coil actually I made one with only 5 wraps
Man you are a life saver
Can u plzz describe how this circuit works...?
hello ,
I followed every word in the video with all the details but unfortunately it didn't work !
plz help me 😕
thanks ^_^
Hi my this project is not working. I followed your circuit. Main coil led worked but second coil LED not glow.
Does it not work when you hold both of those coils on the transmitter together, or is it just when you hold the second coil near the first. If it doesn't work only when you hold both of them together, I would be guessing it's a power output issue, because I managed to do it but they were dim. If the problem is only your second coil doesn't work no matter what, you should try resoldering the connections.
what is the diameter did you used for that coils
can i use normal insulated wire?
how the changing flux works beetween primary coil to secondary coil?
if my battery is 5v what resistor should I use?
How do they open doors with that system?
where do u get the transister please tell me!
You could buy them from eBay, amazon or any electronics store near you. Or you could salvage transistors from dead cfl bulbs
Whats the function of transistor in this experiment
can i use TIP41c NPN Transistor?
Would have been nice to have an explanation as to how the circuit works, like what is the purpose of the transistor? It's not intuitive.
doesn't "transformer" coils only work for AC currents? but why this works on DC?
Irfan Ghani Actually the transistor generating oscillating current from dc power.
김도운 didn't know that.. thanks!
the transistor works as an oscilator. It takes the cc volts and transforms into ac volts. how can the led work on "ac" without a diode to rectify the output ac current?
i dont understand!
LED also works on AC voltage, if we apply a small amount of AC supply on the LED, then it will blink because of frequency
Kamal Rathod oh! that's why it's called LED "Light Emissor Diode!!! A LED is also a diode!!!!
thank you!!! 👏👏👏👏👏👏👏👏👏👏👏
aahhh the beauty of a LED!!!
What transistor n resistor used?
hey please reply..will 2n2222a work???
yes. The 2N3904 used in the video is a general purpose transistor, and so is the 2N222
Yes, almost all npn transistors should work.
Sir, tell me to do something to get "12 Volt 2 Ampere" Output?
This is a fake one, you better ask someone having real knowledge in electronics
wow its awesome but how to increase it's range please tell me
You could try increasing the power of the battery (9v), and switch in a transistor with higher breakdown voltage. Also you could try experimenting with different size and type of coil ( for example pan cake coil, or try increasing the number of coil or the diameter) . Experimenting will definitely help you, not only to succeed, but to make a better design! Good luck!
how can it be connected to charge a phone instead of an led ?
okay for plus 2 physics project.?
can u tell me the power rating of the led
I did all the thing same but still my project is not working. What is magnetic wire actually??
annu singh Magnet wires are just regular copper wires with a layer of thin enamel insulation.
I tried my level best but still my project is not working. Will u tell me what r the common mistakes cometed by most of the people
what is the function of this transistor here ?
May i know what is the principle behind it
Hi, I have tried making this project multiple times only to fail every single time. This project is starting to make me angry, so I thought I would come to you. I used 24 AWG magnet wire to wind my coils, I have used a 1k ohm resistor, I have a 2n3904 transistor and used that, and I can't seem to figure out the problem!
Scotlahn Mccallister did you get it to work? The wire you use must have a coating of insulation on it else all you get is one big lump of solid wire.
+flitsies Yes, I used magnet wire, thinly insulated wire , coated with varnish. But I do believe I hooked up the connections incorrectly, because I recently made a pancake coil that can transmit 5 to 6 inches away.
Scotlahn Mccallister Glad to here you got it working.
what gauge of insulated wire?? and no. of resistor
can i use 3 volts batery?
im sory my bad english because i AM brazilian. your vídeos is só cool, i make this circuit for the school
The circuit is generating AC so in one direction it goes thru the LED in the other the LED acts like a diode and blocks the voltage. the higher voltage will give u more power but will also generate higher voltage on the LED and will go over the reverse voltage capability (just 4 to 6 volts) of the LED and it will get damaged.
what is the use of the transistor in the circuit?? is somehow converting DC to AC ???
what role does the R and Tr play in this?
+Sys.stem The resistor stops the transistor from overheating, and the transistor is used to rapidly switch the current on and off so that we get an effect of AC electricity, so that we can induce current in the receiver coil.
argha halder induce current wont occur during dc current ??
No DC current would induce current but only once which is not sufficient, but AC current keeps changing polarity, so it would induce current a lot of times faster than our eyes can detect, and we will see the led light up
what about if i wnt ot make one for higher voltage? lets say 12 v
then use a diode and resistor in series with the LED
can we use transistor BC547
What to do if I want to increase distance between two coils
can i use 2n2222 transistor?
What to do to transfer (12 Volt 5 Amperes)?
Sir what is voltage in receiver coil..
can please help me to make it more simple..please i want a simple project in physics...help me iam rhwn from philippines
I used a copper wire for it but it didnt work! I tried to change the transistor and the led too bt it still didnt work! recently I watched a video for this project ..They dint use any resistor and it worked
put diode if dont have resistor.
can i use a C9014 transistor i have pleanty.
Yes, C9014 is an NPN transistor and thus should work