Full of factual information and well presented well so even a child could understand. Keep up the good work Dayron the Internet needs more people like you that show the truth and don't decide to get clicks.
Wireless charging has a lot of uses. • If your charging port goes bad. (I've seen this happen) • You have a bunch of cables like me that all say use original charger cable and trickle charges your phone • A good wireless charger will charge both android as well as IPhone so you can charge everyone's phone who comes to your house. • Charging your phone at night in the dark and fumbling for your charger and plugging it in right is a thing of the past • There are plenty of other advantages and I'm sure there will be many disadvantages too. I think this was a great idea, and was never supposed to be life changing. Just a better way to charge your phone at home.
Matt Ferrigno this is spot on! Some chargers work great, others not so good. I have one that has quick charge capability and I have an 18W charging cube for it. Which makes it perfect!
This is exactly what I was going to say. For a science channel, I'm sure he has to understand what friction does to the contact pads by using a charging cable. If anyone is like me and prefers not to spend $900+ (last phone was $1200) every year or two - then you'll look for ways of prolonging the life of it. There's also the convenience aspect of it. Just sit the device down on the pad (for me, in any orientation) and bam.. it charges. It takes seconds compared to tens of seconds of time (science efficiency, undervalued?). And like you also mentioned, one wireless pad for a multitude of devices. I have an Xbox controller, Apple TV (Siri) remote, two iPhones, and some other hacked together electronics (Raspberry Pi) that all charge with the exact same pad. I count three different types of connectors there. I guess in the science world, if something is stupid simple then it has no use case.
FINALLY, someone else that has realized how inefficient wireless charging is. I do electrical design for commercial buildings & I'm surprised the energy code hasn't ban them all together. 20% is HORRIBLE. I was using 50% or a little under 50% efficient. Just based on the wireless battery packs seem to charge about. 1/2 as much if you use the wireless charging vs the corded charging. (That's very rough. I only looked @ 1 and how many times it would charge a phone if full. Using each.) The energy to make the worn out wires / broken charging ports, could be factored in though.
finally! someone worth watching on all these youtube ‘diy’ videos. i actually learned a little something AND was entertained as i was doing so.. 🤣🤣 good job buddy.. 👍☺️
A very good reason for wireless charging is it saves the mini port. These little ports wear out mostly from abuse, but never the less they are usually bad before the phone. They will probably out last the phone with wireless charging.
Yeah they never made much sense to me either. 50% efficiency if they're any good and you can't even move the phone from its designated topping up spot. Hardly even charging, because you don't get a ton of current in these things, as the receiver coil would invariably sit right flat against the battery, and you don't want to bake the battery. I like magnetic cables though. Near lossless in comparison and super convenient, and you can get them for like $2 a piece. Great protection against breaking the socket for clumsy individuals too.
My phones socket is worn so it's easier to use a wireless charger than trying to find the sweet spot where it will actually cable charge. Also got a wireless charger in my card ( as part of the phone cradle ). It's nice to drop the phone in and not have to plug/unplug a cable each time
Magnetic cable suck what we really need is little holes on the back of the phone that when you set it on the charger there are tiny pins that stick into those holes that charge the phone preferably make everything as flat as possible then for example you can walk up to your computer set it on top of your computer case and it would make that noise that computers make when you plug in USB cable to your phone
I am not an engineer and I have not tried it practically but if I'd to say it's the frequency, at lower frequency of little Hz or few 100khz or even 1 or 2 MHz eddy loss is abundant. So may be 5 or 6 MHz or more needed to be supplied after all most commercial devices uses of 6 or 7 MHz. I happen to look one in a product and wondered why it was so high but never gave a thought before this.
I have a wireless headset, but I'm often using it in wired mode since I keep forgetting to plug it in after using it. I just put it back on the stand. It also regularly happens that I forget to turn it off, and when I want to use it the next day it won't turn on.. Therefore I wanted to set up a wireless charging system so I don't have to bother plugging it in. Wireless chargers are great for that reason. For instance, if you get in your car and you put your phone in the phone holder to use it as navigation it's annoying to find the charging cable and plug it in if you remember to plug it in in the first place. Usually I'm driving and I suddenly get a notification that the battery is at 15%, and it's dangerous to plug it in while driving. Wireless charging would completely solve that issue.
everyone I know who uses wireless charging uses it because they move their cables around too much if it's plugged into the phone and ruins the cables, the connector, and quite often the port itself. Have you never battled with having to have the cable in at JUST the right angle, otherwise it doesn't connect, requiring you to rig all sorts of devices to keep the cable pushed in at the correct angle or wrapping the cable around the phone to create tension? Not a problem with wireless charging.
Build a wireless phone charger Build a wireless phone charger Build a wireless phone charger Build a wireless phone charger Build a wireless phone charger
DO NOT DO THIS IF YOU'RE NOT EXPERIENCED. New wireless chargers have smart object detection, unlike this. Doing this: 1. Any coin or metal placed on your pad can cause FIRE. 2. Your pad will ALWAYS draw power = BIG electricity bill.
Good question. The problem is that I have reached the maximum wattage of the system, that is why the voltage dropped from 5V to 3.5V. It's because the source refuses to push any more current than 100mA so it clamps the voltage inside the source. If the output voltage were higher (i.e. 2:1 for 10V), it will still max out the current and clamp the voltage again at 3.5V.
Your misunderstanding. Wireless. Like i am in my house, phone in pocket. While i am in my house my phone is charging. So wonderful you have your capacitor's now where are you resonant couplings or whatever it takes to do that. Tesla.
well I guess it's just basically a transformer in essence, expect __actual__ wireless charging is a transformer plus a whole communication interface with it's own protocol and all that it entails.. preamble bits, packets, detection methods(i.e. not just burning whatever is put on the transmitter) and checksums, modulation techniques.... anyhow, still a good video =)
Why use microwave transformer ,.. the problem is your oscilloscope cant deliver much power at 100ma so instead of using microware transformer use transistor to amplify the current with the same resonant frequency in short use the oscilloscope as oscillator and the transistor to provide additional power and it will drive your coil with enough current to power your phone.
No sir. I let freshmen at my university decide not to haul their microwaves back with them at the end of the school year, then I take them. Good way to get about 10 microwaves a year.
Between you and I, (judge me if you wish) I was leaving town for the holidays and that was also my final exam week. I was tight on time and couldn't design a proper amplifier - its not as easy as you might think at so high of a frequency.
Reasons: A) The connection on the device to be charged is broken. B) Build the charging pad into the coffee table. C) I don't trust strange USB ports, I enjoy the protection of wireless coupling.
In my case wireless charging has been very useful. Solely because the charging port on my phone broke and the only way I can charge it now it's wirelessly and it has kept me from buying a new phone.
Pal, dunno if this was said before but to calculate transformer efficiency you need to account for the voltage and current phase angle, ie Pin = IVcos(theta) where theta is the angle difference between voltage and current assuming the circuit is inductive, ie lagging Power Factor aka cos(theta). The same needs to be done for the output as well. Then you can calculate efficiency. Great video btw. Keep up the good work and merry xmas.
If I'm remembering correctly, using RMS (root mean square) values means that we can use P=V_RMS*I_RMS. Assuming the same voltage on each coil, the ratio of power the same as ratio of the currents. If we felt like using peak voltage methods, all that is out the window and we would need to do what you said. ... and Merry Xmas.
Wireless should be as simple as a charging cradle, with actual contacts for charging, neodyms to pull it into correct position.. Instead of the flimsy charging ports that are ubiquitous on all the devices out there...
Sick man. Good explanation I’m currently building a wireless charger in a car that can plug into the cigarette lighter. Boosting the voltage to 24 v and running a circuit that is 1amp draw Any ideas?
Is Kanthal, possibly AWG, wire conductive? I've got 20 gauge all the way down to 32 or 34. I know to most this is a "stupid question" & I believe I know the answer that it is, indeed conductive. Just thought I'd ask the crowd. Answers? Comments? I'm new to any kind of electronics. Pls be kind.
he bit the mike and licked the wires??? man he is weird i will have to which all of his videos for this weirdness i love he did a jimmy neutron reference
WAIT! ....Now teach us how build a wireless power supply that feeds off of outside high voltage power lines so we can wireless charge our drones. MIT wont release any of their information on their project. And the guys that hang cameras from power lines wont either....You are my last hope. GO!
For one thing, MIT is over-hyped. For another, it's not difficult to pull power away from high voltage lines with a coil of wire. There are stories of farmers putting spools of wire on their property so they can steal power. As, per drones... I don't imagine that the range would be very good being inductively or capacitively coupled to a low frequency source such as the power lines.
Your efficiency calculation of your MOT setup was wrong. Firstly, since your coupling between primary and secondary was surely pretty bad for an iron core transformer, the output voltage is not going to be the same as the input voltage. Secondly, some of that primary current is going to be just reactive power, meaning it doesn´t count as a loss. Also, merry christmas and stuff.
Yeah got one question, what if I wanted to charge my rover robot by making enter its station, induction charger would be better than plugging in every time. Can you please suggest on improving wireless charging.
Apparently you don’t have an iPhone that you have to keep buying cords for. I spent enough on crappy and expensive charging cords to have paid for my phone twice
I need help I need a pulse circuit and can with stand high voltages and amp , and back emf. Why i need it is for experiments look at my video and advise a best design you can recommend thanks
Actually, no, you did not. There's lots of reasons for qi wireless charging: 1) wireless charging is safer. Wall chargers can malfunction, and destroy the power circuit in your phone. 2) wireless charging is more reliable. I have 3 phones where the wired charging jack has broken. 3) wireless charging can be as fast or faster - both my iphone and android charge faster with qi. 4) wireless charging is more convenient. I don't have to look for the cord, I just set it on its stand. As for your "demo," starting with a source of only 100 mA is not going to charge a phone, typically, even if it were 100% efficient.
Maximum power transfer occurs at the resonant frequency. As you stray away from it power drops. Power output looks like a bell curve where the horizontal axis is frequency. A good example of resonance is pushing somebody on a swing set. The best time to push them is right at the peak of their swing. Push them before *or* after that sweet spot, and some energy is lost.
Are you familiar with Faraday cages? A sheet of conductive material doesn't allow an electric field through, protecting what on the other side. Likewise, a magnetic Faraday cage can exist where a sheet of magnetic material doesn't allow magnetic fields through. Phone chargers have a ferrous plate behind them so that the magnetic fields don't pass through and affect the electronics.
@@BlueprintScience I am familiar with them, just not intimately so! I always thought that sheet was there to also hell reflect lr trap more of the energy increasing, potentially, efficiency Would I open every wireless charger and hope they all contain one though...
OFF-Grid HillBilly Style I assume you mean the small coil. That was theoretically 10 volts, but since the frequency generator can only supply less than 100 milliamperes, the voltage dropped into the low single digits; not sure beyond that.
I measured the current in and the current out and compared the two against the theoretical value using the efficiency equation: efficiency = (measured - theoretical) / theoretical
I admit, this may be one of the weirdest videos I've made... and I'm okay with that.
Is there a way to make this with out causing RFI
weird is good there is no other way to make a video like this.
Full of factual information and well presented well so even a child could understand. Keep up the good work Dayron the Internet needs more people like you that show the truth and don't decide to get clicks.
Can you try this ua-cam.com/video/I1IDC8FEIBU/v-deo.html
🔥
We do not gnaw on our microphone! No! No! Bad scientist!
:(
Siana Gearz microphones are yummy with nacho cheese sauce. Just sayin 😂😂😂💥
@@tinysolarshack9615 Can confirm.
You could have used the normal word chew but you had to use the word gnaw now I can't stop laughing.
Wireless charging has a lot of uses.
• If your charging port goes bad. (I've seen this happen)
• You have a bunch of cables like me that all say use original charger cable and trickle charges your phone
• A good wireless charger will charge both android as well as IPhone so you can charge everyone's phone who comes to your house.
• Charging your phone at night in the dark and fumbling for your charger and plugging it in right is a thing of the past
• There are plenty of other advantages and I'm sure there will be many disadvantages too. I think this was a great idea, and was never supposed to be life changing. Just a better way to charge your phone at home.
Matt Ferrigno this is spot on!
Some chargers work great, others not so good. I have one that has quick charge capability and I have an 18W charging cube for it. Which makes it perfect!
This is exactly what I was going to say. For a science channel, I'm sure he has to understand what friction does to the contact pads by using a charging cable. If anyone is like me and prefers not to spend $900+ (last phone was $1200) every year or two - then you'll look for ways of prolonging the life of it.
There's also the convenience aspect of it. Just sit the device down on the pad (for me, in any orientation) and bam.. it charges. It takes seconds compared to tens of seconds of time (science efficiency, undervalued?).
And like you also mentioned, one wireless pad for a multitude of devices. I have an Xbox controller, Apple TV (Siri) remote, two iPhones, and some other hacked together electronics (Raspberry Pi) that all charge with the exact same pad. I count three different types of connectors there.
I guess in the science world, if something is stupid simple then it has no use case.
FINALLY, someone else that has realized how inefficient wireless charging is.
I do electrical design for commercial buildings & I'm surprised the energy code hasn't ban them all together.
20% is HORRIBLE.
I was using 50% or a little under 50% efficient. Just based on the wireless battery packs seem to charge about. 1/2 as much if you use the wireless charging vs the corded charging. (That's very rough. I only looked @ 1 and how many times it would charge a phone if full. Using each.)
The energy to make the worn out wires / broken charging ports, could be factored in though.
finally! someone worth watching on all these youtube ‘diy’ videos. i actually learned a little something AND was entertained as i was doing so.. 🤣🤣 good job buddy.. 👍☺️
You are definitely a mad man. Keep it up. Thanks.👍
You're like the cutest scientist ever
☺️
Love the geekiness, I feel so at home. Fun video. As cheap as those are it will be eBay for me lol. Nice theory presentation 👍👍👍🤔
A very good reason for wireless charging is it saves the mini port. These little ports wear out mostly from abuse, but never the less they are usually bad before the phone. They will probably out last the phone with wireless charging.
You're so friggin cool man
Yeah
you may not know it but you just demonstrated something that science has been looking for and still has not found.
Oh? And what might that be?
@@BlueprintScience I'll never tell.
Yeah they never made much sense to me either. 50% efficiency if they're any good and you can't even move the phone from its designated topping up spot. Hardly even charging, because you don't get a ton of current in these things, as the receiver coil would invariably sit right flat against the battery, and you don't want to bake the battery.
I like magnetic cables though. Near lossless in comparison and super convenient, and you can get them for like $2 a piece. Great protection against breaking the socket for clumsy individuals too.
My phones socket is worn so it's easier to use a wireless charger than trying to find the sweet spot where it will actually cable charge. Also got a wireless charger in my card ( as part of the phone cradle ). It's nice to drop the phone in and not have to plug/unplug a cable each time
Magnetic cable suck what we really need is little holes on the back of the phone that when you set it on the charger there are tiny pins that stick into those holes that charge the phone preferably make everything as flat as possible then for example you can walk up to your computer set it on top of your computer case and it would make that noise that computers make when you plug in USB cable to your phone
🤣i completle lost it when he ate the mic
I'm pretty sure I just blacked out during this entire video, but now I know how to make a wireless charger, thanks!
thank you. that was both informative and amusing!
Took one video to earn my subscription! Educational and hilarious! Keep up the good work!
probably with more accuracy in cutting the iron sheet of the micowave transformer the efficiency rise up.
merry christmas and happy new year, Dayton!
"An efficiency akin to congress" Lmmfao. Subbed. Thanks for the indepth explanation
I am not an engineer and I have not tried it practically but if I'd to say it's the frequency, at lower frequency of little Hz or few 100khz or even 1 or 2 MHz eddy loss is abundant. So may be 5 or 6 MHz or more needed to be supplied after all most commercial devices uses of 6 or 7 MHz. I happen to look one in a product and wondered why it was so high but never gave a thought before this.
Dayton, joins forces in the fight against T-series. 9yo's Unite!
I may not look the part, but I am actually 9 years old.
I was wondering: is there any possibility of charging the phone using its antenna and rectifying ambient, random phone signals?
Oh that's why my wireless charger didn't work. I needed to find the resonant frequency. I learned something new in this video, thank you!
np
That's what I'm here for :)
I have a wireless headset, but I'm often using it in wired mode since I keep forgetting to plug it in after using it. I just put it back on the stand. It also regularly happens that I forget to turn it off, and when I want to use it the next day it won't turn on.. Therefore I wanted to set up a wireless charging system so I don't have to bother plugging it in.
Wireless chargers are great for that reason. For instance, if you get in your car and you put your phone in the phone holder to use it as navigation it's annoying to find the charging cable and plug it in if you remember to plug it in in the first place. Usually I'm driving and I suddenly get a notification that the battery is at 15%, and it's dangerous to plug it in while driving. Wireless charging would completely solve that issue.
excellent demonstration
4:56
The human multimeter everyone 😂
Very nice video
My brother did this once for real and got a really nasty shock from the charger.
How much more efficient would your transformer be if you ran it at 1MHz instead of just 50/60Hz?
the point is.... design. No cables around the desk and lots of cable ducked underneath
that is if you embed the charger in your desk
everyone I know who uses wireless charging uses it because they move their cables around too much if it's plugged into the phone and ruins the cables, the connector, and quite often the port itself. Have you never battled with having to have the cable in at JUST the right angle, otherwise it doesn't connect, requiring you to rig all sorts of devices to keep the cable pushed in at the correct angle or wrapping the cable around the phone to create tension? Not a problem with wireless charging.
Haha...your contempt is noted.
I love your videos. You could be the ultimate Mad scientist.
You should do a video on small signal analysis of Op-amps.
Build a wireless phone charger
Build a wireless phone charger
Build a wireless phone charger
Build a wireless phone charger
Build a wireless phone charger
Thanks.
just found this guy, love it
A FULL BRIDGE RECTIFIAAAA
Failed projects like that one make me hungry for pancakes,, see, it ain't all bad.
😹😹😹😹...think.. Think...video travels to another dimension🔥🔥💯
Bigahunaa...😹😹🔥
I really enjoyed this video
At first i though this guy is weird, but he actually quite funny! I like your video!
These days, it’s weird not to be weird :)
Thanks, I’m glad you liked it!
Blueprint where are you from?
Midwest US.
I’m Dutch, if that’s what you were asking
Blueprint I am in Canada, from Eastern Europe slavic origin.
So nice
I could not stop laughing when u split the transformer into two
As always, you're very entertaining! My 8-yr-old son watches your videos with me. Keep bringing your style!
Thanks, dudes.
Much more complicated than putting two coils on top of each other like you raged at the beginning.
Lmao when you chewed on the mic, I died laughing!
*you could just use the usb port on the oscilloscope*
DO NOT DO THIS IF YOU'RE NOT EXPERIENCED.
New wireless chargers have smart object detection, unlike this.
Doing this:
1. Any coin or metal placed on your pad can cause FIRE.
2. Your pad will ALWAYS draw power = BIG electricity bill.
What if we increase the ratio to 2:1 so it can charge from 3 volt
Good question. The problem is that I have reached the maximum wattage of the system, that is why the voltage dropped from 5V to 3.5V. It's because the source refuses to push any more current than 100mA so it clamps the voltage inside the source. If the output voltage were higher (i.e. 2:1 for 10V), it will still max out the current and clamp the voltage again at 3.5V.
@@BlueprintScience ohhh...
Your misunderstanding. Wireless. Like i am in my house, phone in pocket. While i am in my house my phone is charging. So wonderful you have your capacitor's now where are you resonant couplings or whatever it takes to do that. Tesla.
Amazing.
well I guess it's just basically a transformer in essence, expect __actual__ wireless charging is a transformer plus a whole communication interface with it's own protocol and all that it entails.. preamble bits, packets, detection methods(i.e. not just burning whatever is put on the transmitter) and checksums, modulation techniques....
anyhow, still a good video =)
I think he should have used bc547 or 2n2222 instead of a bridge rectifier circuit.
Why use microwave transformer ,.. the problem is your oscilloscope cant deliver much power at 100ma so instead of using microware transformer use transistor to amplify the current with the same resonant frequency in short use the oscilloscope as oscillator and the transistor to provide additional power and it will drive your coil with enough current to power your phone.
I only have one question... Do you buy microwaves in bulk?
No sir. I let freshmen at my university decide not to haul their microwaves back with them at the end of the school year, then I take them.
Good way to get about 10 microwaves a year.
Can you build a wired phone charger
Dewit
You should have made a diy oscillator using a single MOSFET and a resistor only easy !!
Between you and I, (judge me if you wish) I was leaving town for the holidays and that was also my final exam week. I was tight on time and couldn't design a proper amplifier - its not as easy as you might think at so high of a frequency.
How do I make an existing wireless charger more powerful in terms of going through thicker objects?
That MOT's gonna leave an awful lot mark's on the wall when you plug it in
How come you didn't do the lick test on the 2nd one? Don't believe in checking your work😁😂
Lol. Love ASMR, and that was Great!
what's the point? No more wear and tear as long as I keep it stationary. I somehow go through 2 chargers a month :,(
can you DIY X-base Wireless Power Station, for diorama purposes?
Reasons:
A) The connection on the device to be charged is broken.
B) Build the charging pad into the coffee table.
C) I don't trust strange USB ports, I enjoy the protection of wireless coupling.
Why didn't he make a transformer without a 1-1 ratio to increase the output voltage?
@@teku3985 did you just use a double negative?
In my case wireless charging has been very useful. Solely because the charging port on my phone broke and the only way I can charge it now it's wirelessly and it has kept me from buying a new phone.
fYeah, but what frequency? Is it resonant? If not, why not?
jimmy neutron with the brain 🧠 blast 💥 😂😂😂
Pal, dunno if this was said before but to calculate transformer efficiency you need to account for the voltage and current phase angle, ie Pin = IVcos(theta) where theta is the angle difference between voltage and current assuming the circuit is inductive, ie lagging Power Factor aka cos(theta). The same needs to be done for the output as well. Then you can calculate efficiency. Great video btw. Keep up the good work and merry xmas.
If I'm remembering correctly, using RMS (root mean square) values means that we can use P=V_RMS*I_RMS. Assuming the same voltage on each coil, the ratio of power the same as ratio of the currents. If we felt like using peak voltage methods, all that is out the window and we would need to do what you said.
... and Merry Xmas.
Biggest crush
Parasocial relationship much?
Wireless should be as simple as a charging cradle, with actual contacts for charging, neodyms to pull it into correct position.. Instead of the flimsy charging ports that are ubiquitous on all the devices out there...
First time watching and I subbed! Great editing. I also feel exactly the same about the pointlessness of "wireless" charging.
Hey, thanks!
Sick man. Good explanation
I’m currently building a wireless charger in a car that can plug into the cigarette lighter.
Boosting the voltage to 24 v and running a circuit that is 1amp draw
Any ideas?
Is Kanthal, possibly AWG, wire conductive? I've got 20 gauge all the way down to 32 or 34. I know to most this is a "stupid question" & I believe I know the answer that it is, indeed conductive. Just thought I'd ask the crowd. Answers? Comments? I'm new to any kind of electronics. Pls be kind.
Yes, Kanthal is very conducive.
he bit the mike and licked the wires???
man he is weird i will have to which all of his videos for this weirdness
i love he did a jimmy neutron reference
I gave a dislike for chewing the microphone...
and subscribed to you for watching the best weirdest and still curious and interesting video.
WAIT! ....Now teach us how build a wireless power supply that feeds off of outside high voltage power lines so we can wireless charge our drones. MIT wont release any of their information on their project. And the guys that hang cameras from power lines wont either....You are my last hope. GO!
For one thing, MIT is over-hyped.
For another, it's not difficult to pull power away from high voltage lines with a coil of wire. There are stories of farmers putting spools of wire on their property so they can steal power.
As, per drones... I don't imagine that the range would be very good being inductively or capacitively coupled to a low frequency source such as the power lines.
Your efficiency calculation of your MOT setup was wrong.
Firstly, since your coupling between primary and secondary was surely pretty bad for an iron core transformer, the output voltage is not going to be the same as the input voltage.
Secondly, some of that primary current is going to be just reactive power, meaning it doesn´t count as a loss.
Also, merry christmas and stuff.
Yeah got one question, what if I wanted to charge my rover robot by making enter its station, induction charger would be better than plugging in every time. Can you please suggest on improving wireless charging.
Apparently you don’t have an iPhone that you have to keep buying cords for. I spent enough on crappy and expensive charging cords to have paid for my phone twice
Well, u can charge multiple devices if u got a big enough pad
Lol, the efficiency of Congress!🤣😂🤣😂
It's a sad state of affairs when that joke lands!
Blueprint Indeed!
I need help I need a pulse circuit and can with stand high voltages and amp , and back emf. Why i need it is for experiments look at my video and advise a best design you can recommend thanks
Wouldn't it be easier on the brain if you just bought a phone charger at Wally world and laid your brain on a pillow while your phone charged?
Maybe...
I can see a lot went into by his video, and ear 😂
Just do 7:02 then 8:19 it's priceless with the little scream and all lmao! love u man
Can u transfer it 4 ft try figure it out cause im never getting wireless if u have to set my phone down theres no point of the charger
Actually, no, you did not.
There's lots of reasons for qi wireless charging:
1) wireless charging is safer. Wall chargers can malfunction, and destroy the power circuit in your phone.
2) wireless charging is more reliable. I have 3 phones where the wired charging jack has broken.
3) wireless charging can be as fast or faster - both my iphone and android charge faster with qi.
4) wireless charging is more convenient. I don't have to look for the cord, I just set it on its stand.
As for your "demo," starting with a source of only 100 mA is not going to charge a phone, typically, even if it were 100% efficient.
3:22 - 3:41 whaaaat!? why does the same problem occur in the other direction? o.O
Maximum power transfer occurs at the resonant frequency. As you stray away from it power drops. Power output looks like a bell curve where the horizontal axis is frequency.
A good example of resonance is pushing somebody on a swing set. The best time to push them is right at the peak of their swing. Push them before *or* after that sweet spot, and some energy is lost.
Build a wireless phone charger
bro , i request to make video on radio power harvesting please.
dear how to increase current amp in this sysytem?
dear
Use the signal to switch a power transistor. This is the most basic amplifier
Super Bro
I would like to make virtually every surface in my home to be wireless charging port
1:43 ummm is that a toy or something it is a rode mic man it is one of the best microphones
Don't forget to like that smash button😂😂
Lol multiple times. Great share.
I've always wondered if other components might be damaged due to inductance
Are you familiar with Faraday cages? A sheet of conductive material doesn't allow an electric field through, protecting what on the other side. Likewise, a magnetic Faraday cage can exist where a sheet of magnetic material doesn't allow magnetic fields through.
Phone chargers have a ferrous plate behind them so that the magnetic fields don't pass through and affect the electronics.
@@BlueprintScience I am familiar with them, just not intimately so! I always thought that sheet was there to also hell reflect lr trap more of the energy increasing, potentially, efficiency
Would I open every wireless charger and hope they all contain one though...
How many V are you putting into your "transformer"?
OFF-Grid HillBilly Style I assume you mean the small coil. That was theoretically 10 volts, but since the frequency generator can only supply less than 100 milliamperes, the voltage dropped into the low single digits; not sure beyond that.
I really like you man but the quality of the vid is so low you need to work in your filming skills and you will be one of the best
Less wear on the port of the phone is my explanation on the point of wireless charging
Hi I’m working on a wireless charging project so how can I contact you
will you make a wired phone charger.
how do you calculate for this inefficiency
I measured the current in and the current out and compared the two against the theoretical value using the efficiency equation: efficiency = (measured - theoretical) / theoretical