40W Peak Crank Generator With 100F Ultracapacitor Bank
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- Опубліковано 8 вер 2024
- Check out this very nice, and extremely useful crank generator which I make from a modified dishwasher motor. Perfect for supplying power or charging batteries at a remote campsite or bunker. This unit can easily be modified to connect to a bicycle. Power output is either a 12V regulated supply(Up to 3 full amps), an unregulated output, as well as a provision for charging a 100F supercapacitor bank. I also added a 12V accessory socket to this unit as shown in the video thumbnail.
Thanks For Watching!
**To make it easy for you, below are (2) links. One link is for (6) 500F/2.7V caps for only $26.10 shipped using the coupon code: elec or affiliate6. The other link is for a very nice, ready made supercapacitor balance board.
bit.ly/2hzePv4
teslamaker.com/...
**Rising voltage indicator circuit I used is here:
• Rising Voltage LED Pow...
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@Andreas Chris
Maybe not worth it to you, but it sure is worth it to me. 3.25 Amps is a good amount of current. You will wish you had a setup like this if you ever needed power and none was available. :-) I don't mind all the work I did. Around 50W is the maximum that a person can crank. Higher than that and you would have to be the Incredible Hulk. People sell units capable of 200-400 watts, but the fact of the matter is that you will NEVER be able to put out more than 50W. Those crank generators are sold for big money, I made this unit for around 50 dollars in supplies(which includes all the supercapacitors). Everything else was pulled from the trash.
electronicsNmore How many weeks do your capacitors hold their full charge?
And why on earth 12volts?! Is this for jumpstarting a car only?
All my appliances run on 220v.
This is not used for 220V appliances. LOL This is made for powering/charging portable electronics, or supplying power to a small inverter when no other power is available. Supercapacitors have one flaw, high self discharge rates. Luckily they charge back up fairly quickly.
+electronicsNmore Thanks for this video, I also ask the question to: +y1hardtop Is there anyway that you could develop the topic of the 4 diodes to limit the voltage into the individual Caps ? I was fooling around with 6 x 500 F Caps just a while ago, so 6x 2.7v= 16.2 v max,
They were totally drained so I tried to charge with a Imax 6 at 2 amp using Lead Acid mode with a target of 14v max. Of course the Imax refused to start saying "Voltage too Low" so I fooled it by using a 8ah gel cell to connected to my 6x cap with a 10 ohm rheostat to limit the amps at first mainly to save my connecting my wires,
it all worked fines to 14v then to reach the 16.2 v, I disconnected the Gel Cell 12v battery and went straight to Imax and switched it to 7 cell to reach my 16.2v target , I was monitoring the overall voltage of my 6x Cap pack,
Looked all good and I stopped at 16.2 volts , however, ouch ! when I tested the voltage of individual caps, one was at 3.55 volts and the others around 2.5 with variations between them like 0.20v , I quickly discharge it to below 2.7v and monitored the voltage leak over 1/2 an hours and it seems to be fine.
So here is my question, the DIODES, COULD YOU PLEASE EXPLAIN THE PRINCIPLE AND THE POLARITY + WHAT EVER YOU SEE FIT, I do understand that one can buy a limiter but they really are costly,
Thanks, I can be contacted by email at StClaireUSA@gmail.com or 707 235-4029
Christian StClaire
Hello. In the video I explained that the diodes are used to bleed off excess voltage. The diode requires a forward voltage of at least .6V before they conduct and allow current to flow. Lower than .6v, no current flows. If you use (3) diodes in series, then you will require at least 1.8v before current flows.
Thanks For Watching!
what if a fly wheel was utilized?
This is just great. I'm picturing hooking 50 of these up to bicycles and having them operated by an army of naked Swedish nymphs. I'd fund it by selling the saddles weekly on e-bay. Seriously though, good work fella, thanks.
This is EXACTLY the sort of knowlege i have been looking for! Absolutely awesome!
I agree with one of the other commenters about using a heavy flywheel. There's nothing like using mass to store mechcanical energy, thus making cranking easier and the output smoother.
Nice project and thanks for sharing it with us.
Regards,
Mick
The wife has been wanting to join a gym to lose weight and get back in shape wait until i build one of these and put it on a hamster wheel, don't know how much longer i will be married after that but it will be funny as hell, laughter is the best part of living in these crazy conditions
😂
Excellent video, thanks for the great explanation of the system. I can easily see how anyone could attach a stationary bicycle to help with the cranking. Keep up the fantastic work!
Thanks Troy. Be sure to share my channel with others.
Very interesting--very creative! You do a very thorough job of narrating the video and obviously have a deep understanding of the practical application of technology. Great job!
Glad you enjoyed the video Ed! Be sure to rate thumbs up, look over my extensive video playlists for other great videos of interest to you, and most importantly SHARE my channel with others. Thank you
My Bike Generator video:
ua-cam.com/video/8rj-emSUf7I/v-deo.html
Thank you for putting up such a detailed guide, amazing video! 👍🏼
Glad you enjoyed it! Be sure to check out my video playlists, rate thumbs up, and share my channel with others. Thanks
they made thousands of electronic exerciser machines that used a delco alternator for setting resistance, it simply dumped the output of the alternater to a huge resistor and used a varied feild current to simulate hills and such its basically a perfact mechanically coupled human powered generator and it has a set of handle bars and a seat and can probably net uptp 20 amps ..........
Interesting mod. I scored a working furnace blower motor with 5 speeds at a junk store. All windings work. I plan on using it as a generator. It's rated for up to 10 amps. I will connect and rectify all outputs. I'm certainly looking forward to this project. If you have an comments on these furnace blowers please feel free to say some thing. I'd prefer a simpler motor, but a hand winding project is much further down the list of things to try.
I have a few of those step down boards…..they’re nice and cheap
Great job on the generator, love the cap bank idea. Excellent video too. You are certainly appreciated my friend.
Thanks Drew
Nice machine and very well explained, I'm curious as to understand how much energy those caps van store with a regulated output
Glad you enjoyed the video! Those caps store a lot of energy. I have a lot of excellent videos on my channel that cover many different subjects, so be sure to check out my extensive video playlists for other videos of interest to you, rate thumbs up, and share my channel with others. Thank You
Check out my other supercapacitor video:
ua-cam.com/video/FpB9nG4TDHo/v-deo.html
You definitely are an Electrical Engineer par excellence (perfect with all the technical details right down to the last bolt). I enjoyed you video. Good work.
+JagiChan Sir
Glad you enjoyed the video! Please be sure to check out my video playlists, rate thumbs up, and subscribe. Thank You
Id hook that bad boy up to a 29 inch mountain bike with 21 speeds using the 29 inch rear wheel in place opf the 11inch air handler wheel...if that would even work lol.
Awesome machine you got there my friend
Excellent build :) this is certainly handy if you're needing an off grid power supply.
Crux161 Thanks For Watching! Please share.
Love the idea of hooking this up to a bike. Great video and neat idea. Thank you for sharing.
Your welcome.
Great job, love all the specs on components and the multimeter and scope data. Best video ever. Your attention to detail is appreciated.
Robert Zahirsky Thanks Rob! Be sure to check out my video playlists, rate thumbs up, and share my channel.
I'd fix that big wheel to a bike wheel lol good video them caps are interesting
A modification that I'd think would be a nice idea would be to be able to to take the rear wheel off a common bike, and rail the chain on a sprocket on your generator, instead of the hand wheel. It seems it'd be much easier to produce a lot of power. I notice on some of the bike computers, they calculate that some cyclists are able to produce over 400W, so 40 should be relatively easy.
Wonderful expose. I love to listen to someone who knows how to talk electrical technical language. Makes understanding them so much easier. Your project was well thought out. Love your neatness and professional work. I subscribed to your channel. Hope to see much more from you.
Thanks for watching and subscribing! Be sure to check out my extensive video playlists, share with others, and rate thumbs up.
Thanks for watching and subscribing! Be sure to check out my extensive video playlists, share with others, and rate thumbs up.
Nice design, a schematic would be perfect.
Hi christophero. It is very simple. Each set of windings gets rectified by a full wave bridge rectifier made from Schottky diodes(3A- 1N5822's). Then you connect both rectified outputs together, then add a filter cap(1000uF/ 50V), then off to the DC-DC step down converter or bypass switch. The caps are connected to the output using a 10A switch.
Nice vedio & explaination brother 🙏🙏
The problem is, that if you are in a bunker, using the human energy to produce electricity is the latest of last resorts. It uses 3 very rare and very precious things that are very vital for your survival. The first one is food, that is in limited amount in a bunker, second one is water (you loose it by excessive perspiration during physical effort), third one is oxygen, that you have in a bunker (in case, when the air outside is contaminated). So, this is definitely last thing you can think about when sitting in a bunker. It can be used just for supplying for example the small radio to listen to news for several minutes in several hours and this is all.
The best solution is to have a solar panel and a decent battery to be charged during the day by sunlight and used to supply the radio (if it is possible to operate solar panel, of course) and to have a combustion motor generator and a gasoline tank for it (with air for combustion supplied from the outside and smoke blown to outside, of course). You can also think about a small windmill, that can give you several tens of watts to charge a power bank or some electronic gadgets like flashlight, radio or telephone.
Never ever assume, that human - powered generator will be your first nor second (nor even third) source of emergency power! It is good to have one, but it is the latest of last resorts. Energy from food in the bunker is absolutely priceless and should be used only for supplying only basic life functions.
You must get exercise when in a bunker, so the bike is ideal.
Put a VAWT on the big pulley and walla ,you've got a great wind generator. Also using some super caps as well . as usual a truly top notch video thanks for your effort.
Thank You.
Thanks for sharing your hard work with us! Very thoughtful presentation.
Thanks Tony
Electronic conversation and vocabulary to me equals genius! Seriously I have no idea where to start, other than getting a 2x10 and blowing up a dishwasher! I can do that no problem! Great video! What can you power with that though? And how about if you connect a 12 volt battery to it (lead acid car battery for example)? Obviously that system would charge the battery correct? And then what could you power with that? I'm pretty new and the world of electronics is Greek to me
I enjoyed watching your informative and instructive video. You made it better in the way you re-purposed unrelated gear. Recruiting the utility pole foot peg for your project is inspired creativity right there. I look forward to watching more of your videos.
Thanks Rick! Be sure to check out my latest crank generator video and share.
amazing project
Thank you! I found 3 other related videos that you'll definitely enjoy. Be sure to look over my extensive video playlists and share my channel with many others.
ua-cam.com/video/8rj-emSUf7I/v-deo.html
ua-cam.com/video/HWXOZD7fFg4/v-deo.html
ua-cam.com/video/LNLZcj-PacQ/v-deo.html
You can add 2,3 or even 4 large wheels to get the most output and use 12v transformers instead of batteries if you prefer plug ins.
You should have designed the drive system for chain rather than belt drive. More efficient. Generally the weight of the chain (or mass) negates a lot of the savings however, if you're not having to transport the drive (as in a bicycle) then weight makes no difference and you're only left with mass. Mass will only be an issue when the speed is changing. So if cranking at a constant speed, a chain will provide greater output for energy input. Okay experts, how did I do? Okay? Or did I mess up?
That's really neat!
Thanks For Watching!
Nice video & beautifully presented especially your description ..thank you!
Glad you enjoyed it. Be sure to check out my other crank generator videos, extensive video playlists, rate thumbs up, and share.Thanks!
very nice build
Thank You!
Great project, thanks for posting.
+GoVertical17
Glad you enjoyed my video. Please share and rate Thumbs Up. Thank You!
Using the diode hooked up forward from the negative to positive terminal of the capacitor and allow them to be used as variable resistor is ingenuous!
Can you tell me how you arrived at 4 in series, please?
Wow fantastic- great construction and nice job getting in that motor and converting to an alternator. Two suggestions if you mount a piece of versa bar over the diameter of your drive pulley you could fasten the lever to any point from center by drilling three holes in a piece of steel bar/flat stock tapping the center hole for your handle and use two spring nuts on the other holes to quickly and securely fasten it. This would be particularly useful if you plan on playing around with gear ratios or want to fine tune how much oomph is needed and how much speed you need to move your arm. Whipping around too fast and you are going to waste energy stabilizing yourself and the machine.
I think even better than a bike- would be an old style sewing machine. The kind in which a large foot paddle was oscillated 45 degrees to drive a flywheel. You would have a table top and very easy driving mechanism- that cap bank might be great for making a pulsed welder working station- and or a soldering station with the sewing machine table top.
I actually thought of doing something like that to the drive pulley. If I keep the output to around 35 watts, I can spin slower.
Thanks For Wacthing!
***** You can get that same handheld Oscilloscope from Wellman Instruments. It uses about 8 AA batteries and comes with a probe. That should work fine for O2 sensor diagnosticsNmore! :) I have one that I paid $200 to a reseller in my town years ago and it might be less expensive today.
electronicsNmore If I had that gennie, I think I would back the scooter up with the rear wheel raised and the the gennie between the wall and the scooter to generate power, but maybe the scooter is already quite capable of generating 12V @ 3A? Thanks for showing how to go about doing something like converting an AC motor to a permananent magnet generator, and as always, your workmanship on the projects are top notch! I look forward to all your videos! Long-time subscriber, liked (again).
Glad you enjoy my videos!
Fun project, I suppose but I guess that I agree with some of the other folk who say that you had to put WAY too much work and modification into this generator. Especially when there are ways to get the same results with much less hassle. Using super capacitors in a power generator build only increases the number of other, much more easily constructed options for power generation/storage. One MUCH easier option for power generation that I can think of off the top of my head would be to hook up a bicycle to any standard car alternator. Using a AA battery pack(12v) to get it cranking and you're good to go as is! Hook that Bicycle/alternator set up to a bank of supercapitors for some short term power storage or even directly to a battery bank or small inverter and you will have all the power you need for most applications and stay in great shape at the same time. BUT if you have extra money, lots of time and energy, and like things a little more complicated then I suppose doing it your way could be fun as well. Thanks for the video. Good luck!
A window fan motor should be more cost effective plus you can run more than one generator (alternator) which gives you more charging (use a 12v battery) and it will be basically free to operate (when considering the cost of operating the LEDs). My entire home is lit with LEDs for normal lighting, CFLs for reading, etc. Outside lights are also LEDs (20 watt is VERY sufficient)
i would make a suggestion and instead of using diodes to prevernt over-volting use a transistor... it will be a very sharp turn on and its possible to make the power go through something that can take alot of power like a large resistor instead of a tiny diode... so that it can take more power before it overheats ... i dont think out of the diodes you used and the capacitor you used the diode will fail first then the capacitor will fail second, since i know supercapacitors are expensive i guess you want to protect it with cheap components adequetly but if thats all youve got then why not go with it... it is free to collect old tv's and you can easily find many great parts to absorb large ammounts of power
+Britisher InCanada Rather, it would be closer to say that a transistor is a 3-legged pair of diodes. Both diodes "point" in the same direction, and share one common region in their junctions.
A diode is just an uncontrolled "valve" that is closed in both directions until the "pressure" of the voltage behind it causes it to "avalanche" and begin passing current. That's what happens when you're forward biasing the junction. In the other direction, the valve is completely closed. The device will not allow current to flow regardless of voltage, up to a particular limit, at which point you destroy the device.
Now think of two of those, both "pointing" in the same direction, and connected at the hip. Now one of the diodes can actually control the forward biasing of the other, so you now have a controllable valve. Depending on how you set up your circuit's biasing, you can now control how much conduction can occur. What's really cool about transistors (at least to me) is that they can perform this at many different frequencies simultaneously. The audio power transistor is a miracle of nature!
Sorry I got off track there, but your remark sparked memories of electronics school, where I remember once writing a paper on the effect known as thermal runaway, a condition that destroys a transistor just as exceeding Peak Inverse Voltage destroys a diode. It happens when circuit conditions (for whatever reason - poor design, resistor failure, whatever) cause the controlling diode to "tell" the valve to turn on further than its forward junction is able to safely pass. As it turns on harder and harder, it heats up. The heat allows it to pass even more current, and everything escalates until the junction burns. Well designed circuits protect against this condition ever getting starred by using special diodes (zener and/or Schottky diodes), to "clamp" the voltage at a value the designer wants the circuit to never exceed. The semiconductor diode is one of mankind's greatest discoveries, and proudest accomplishments.
Diodes today are lights, lasers, and are the foundation of all our modern digital technology. Arguably it represents as important an advance for us as fire, the wheel, the printing press, or the airplane.
A bigger bank and an inverter....could make my kids power all their devices I don't like them playing all the time with this. Crank for an hour to play COD for 20 minutes. I like it.
+shn lj
Good idea. :-)
Hi Great device. I made a purchase from your link. I hope this helps you. Keep the videos coming and have a great New Year.
All the best.
Bobby
Well done.
Thanks Martin!
Outstanding work. My compliments, and New subscriber
Great to hear Joe! Be sure to look over my extensive video playlists for other great videos of interest to you, and most importantly share my channel with many others. You'll love my bike generator video below. Thanks for watching!
ua-cam.com/video/8rj-emSUf7I/v-deo.html
Very cool
Glad you liked it Kerron! Be sure to look over my extensive video playlists below for many other videos of interest to you, and most importantly take one minute to share links to my videos with others on social networking sites. Thanks!
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@@electronicsNmore going to build one soon
When you wire batteries or capacitors in series you increase the voltage and when in parallel you increase capacity.
Series = 13.5v 500F
Parallel = 2.7v 2,500F
Exactly, but not for capacitors
Love your video's! THNX!!!!!!!!!
This one is on sale right now:
bit.ly/2Ss3AmH
It's nice for the money. I also show another nice 30W version below.
ua-cam.com/video/QMdeu9GhTT0/v-deo.html
ua-cam.com/video/HWXOZD7fFg4/v-deo.html
ua-cam.com/video/8rj-emSUf7I/v-deo.html
very good video
rich sailors Glad you enjoyed it! Be sure to check out my video playlists and share. Thanks
Why not use a car generator (scrap yard)?
I like your diode voltage limiter over the super-caps.
wow the best man, simple but effective, can you share your schematic diagram and where to purchase
very cool sir.
Thank You. Glad you enjoyed my video. Please share and rate Thumbs Up.
wow superrrrrr
+ipanase megison
Glad you like it! Be sure to share with others and rate thumbs up. Thank You
Since the unregulated output of this is so closely matched the regulated output, it might be more efficient to simply use a LDO *linear* regulator. If the output voltage is dropped from 12.95V to 11.95V, there is a 1V drop, and at 3A maximum output, that is only 3W of heat, and 3W of the total 38W is 92% efficient! A switching regulator can only achieve that with a specific load and voltage difference. In fact, looking at the graphs on the datasheet for the LM2596, it appears that regulator will the the least efficient when the voltage input is nearly the same as the output @ 12V (it is still around 87% though, pretty high). Even with the optimum load and voltage difference @12V, the maximum efficiency is 91%.
I have a feeling, that with only 1V of difference across that regulator, that it may not be regulating properly at higher currents because a possible dropout voltage of the LM2596. I can seem to find that information anywhere on the datasheet, but It seems to be a least 0.5V. I suppose 1V is just enough leyway, but I'd use a LDO regulator that has a dropout that is measured in mV.
Sources and great articles:
www.ti.com/lit/ds/symlink/lm2596.pdf
focus.ti.com/download/trng/docs/seminar/Topic%209%20-%20Understanding%20LDO%20dropout.pdf
www.ti.com/lit/an/slva118/slva118.pdf
+Power Max but if you need 6V output, switching mode regulator will have a lot higher efficiency
+Volodumur Kalunyak Correct. But not that efficient. Realistically you would be lucky to get is 90%, under the exact right load conditions. Often it will be anywhere from 0% to 70% depending on the voltage difference, current draw, temperature, age, etc etc etc.
Why don't you use some 12V zener diodes as the shunt regulators for the voltage across the capacitors? You will not need as many and thus it is probably cheaper.
Actually 2.7V zeners across each ultracapacitor would work(which I did not have), but zeners cannot handle as much current as the 1A 1N4935's. The 2.7V zeners are only rated 20-30mA.
Nice job!
Thanks Tony. Be sure to check out my extensive video playlists, rate thumbs up, share my channel with others, and subscribe.
3 phase is the most efficient, but I would love to see a squirrel cage motor converted
Of course they are. You can convert a 3 phase also.
Awesome work!! subbed
+Nonnof Yobiznes
Thanks! Be sure to check out my video playlists, rate thumbs up, and share.
When you have 500F caps all in series the capacitance of the caps does not decrease as you put more of them in series, the capacity can only stay the same, not decrease in capacitance as you add more caps in series. Your setup would be a 500F setup with whatever voltage your running it at, within the rated overall voltage. If these caps were in parallel it would increase by the capacitance of the next one, two 500F caps in parallel would be 1000F at the caps individual rated voltage. Hope this corrects things, and be more careful about the info you give, people may take this video as a direct reference on how to do things.
I have no idea what your talking about. I have seen MANY UA-cam videos, and I can tell you that my videos are rated high based on the level of information I give, how I explain things easily to people, and not to mention how much I interact with viewers(Which MANY other channels do not). (5) 500F capacitors in series yields the sum of all voltages(2.7V x 5 = 13.5 v), and 100 FARADS. Everything I stated was accurate. I suggest you pull up a few online capacitor series calculators and enter 500F five times. You will get 100F.
Series capacitance is calculated in the same way as parallel resistance.
Cs = 1/(1/C1 + 1/C2 + 1/C3 + 1/C4 + 1/C5) =
= 1/(1/500 + 1/500 + 1/500 + 1/500 + 1/500) =
= 1/(5/500) = 1 * (500 / 5) = 500 / 5 = 100 F
thanks for sharing...
good job
+Madhosh BaHi
Thank You! Please share my channel with others.
Oooops sorry for all the trouble, I have been working with circuits with isolated cap banks a while ago and forgot that there is zero volt cancellation among in the polls of the capacitor setup that you have bringing the plates (not in reality) farther apart. I used to be a electronics hobbyist but now I'm a programmer in c for robotics, so everything is digital. I should also get some slack for trying to prove you wrong, I'm still in middle school.
In the future, make sure your 100% correct before telling someone they are wrong. :-)
Just wondering if it would benefit from a heavy'ish flywheel to keep the rotation smoother and help gain speed? Or even some weights attached between the spokes of the driving wheel?
+Adam Just-Me
Hi there. Yes, using a heavy flywheel would be great, but then you make the device too heavy.
You could use it for a water wheel thing
True! Thanks for watching! Be sure to watch my other video below and share.
ua-cam.com/video/8rj-emSUf7I/v-deo.html
Fantastic!!! Have you done any experiments like running a 12V radio on the cap bank to see how long between cranks?? Many thanks!! Very neat effective idea.
A radio will run quite a while. It all depends on the size of the load used. Glad you liked the video. Be sure to check out my other videos, rate thumbs up, and share. Thanks
mmmm sounds loud, and that means friction losses. Is it the motor of the pulley the one making noise? Mayne a little heavy grease can fix that.
Not loud at all. The camera was very close to the unit, so it will be loud. I can always swap out the motor bearings if I notice any change in the sound. Very easy to do. I love my setup. It is extremely useful, and super reliable.
Great channel bro !!!!! Really good videos !!!!
Thank you! Glad you like my videos. Please share my channel with others.
Almost want a 10 speed bike with chain and chain rail switch. And just charge a 12volt bike battery with this attached to a linear wind turbine from the roof of my shed.
Should of put a flywheel on it to help with the momentum when you start turning it over.
I have no problem cranking this generator as it is, but for someone who is not as strong, a flywheel may help.
i would set it up with a multi speed mountain bike or set it up on a stationary bike
Even better:
ua-cam.com/video/8rj-emSUf7I/v-deo.html
Bone up on shunt regulators if you really want to protect your capacitors. 2.7 volts really is the limit of these capacitors. Even 2.8 volts will shorten the life of the caps.
y1hardtop I monitored the voltage of my caps while cranking. Everything works just fine. I have 6 super caps also rated at 2.8V.
Thanks For Watching
electronicsNmore I only mentioned the shunt regulators because some watchers may think the 4 diodes are a viable way of protecting the caps in other applications. The 4 diodes won't do much, below 2.8 volts and they will allow 4 volts across the caps at higher charging currents. That would damage the caps. An unattended, unmonitored charger setup, with the 4 diodes would do that. Nice job on the generator, by the way.
+y1hardtop Is there anyway that you could develop the topic of the 4 diodes to limit the voltage into the individual Caps ? I was fooling around with 6 x 500 F Caps just a while ago, so 6x 2.7v= 16.2 v max,
They were totally drained so I tried to charge with a Imax 6 at 2 amp using Lead Acid mode with a target of 14v max. Of course the Imax refused to start saying "Voltage too Low" so I fooled it by using a 8ah gel cell to connected to my 6x cap with a 10 ohm rheostat to limit the amps at first mainly to save my connecting my wires,
it all worked fines to 14v then to reach the 16.2 v, I disconnected the Gel Cell 12v battery and went straight to Imax and switched it to 7 cell to reach my 16.2v target , I was monitoring the overall voltage of my 6x Cap pack,
Looked all good and I stopped at 16.2 volts , however, ouch ! when I tested the voltage of individual caps, one was at 3.55 volts and the others around 2.5 with variations between them like 0.20v , I quickly discharge it to below 2.7v and monitored the voltage leak over 1/2 an hours and it seems to be fine.
So here is my question, the DIODES, COULD YOU PLEASE EXPLAIN THE PRINCIPLE AND THE POLARITY + WHAT EVER YOU SEE FIT, I do understand that one can buy a limiter but they really are costly,
Thanks, I can be contacted by email at StClaireUSA@gmail.com or 707 235-4029
Christian StClaire
Would you be able to use a 20 inch bike wheel in place of the hand crank you have on it now ? Then you would be able to use the bike to power it
It is very easy to convert this hand crank unit to a unit which connects to the rear wheel of a bicycle.
OMG! I only JUST found this channel by accident! I've been looking for a channel like this for a LLLONG TIME. AMAZING! I'd love to hear about your education and work experience in this field! You cover SO MUCH of what I want to learn. I am going to binge watch everything you have. Beginner questions so please forgive my naïveté and inexperienced question, but could batteries be put in place of the capacitors? Could something like this be used to gradually charge a 12v lawnmower, motorcycle, or even car battery gradually over time, say, with taking turns with multiple family members, for example, in extreme emergencies when power is out for extended periods, and gas to fuel generators is unavailable (think Puerto Rico currently) - thinking in terms of LOWER power needs like charging cell phones, and perhaps running a modem or router, or radios - in short, emergency communications. Are the capacitors being used instead of batteries because it's AC current? How could I start with a project like this, using perhaps an old fan motor or similar and get enough hand-cranked, or bicycle-crank juice to charge a BATTERY to run 12v cell chargers, or very small wattage inverters to charge phones or put out similar amounts of power? My goal would be to learn how to build from JUNK and not have to buy parts, again, thinking disaster/emergency education...
Glad you found my channel and enjoyed my video. The supercapacitors are used to store DC, just like a battery. You'll definitely want to see the videos below. :-)
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ua-cam.com/video/LNLZcj-PacQ/v-deo.html
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from very long time I wanted to build this but the motor/genrator I looked online is very expensive. I have 6x 2.7 3000farad caps I want to use in this system. I will really appreciate if you could make a video on how to make this step by step and all the parts list.
My caps are connected in series lol, I'm charging it from my solar panel everyday, working fine
Great work, looks very handy! Would it make sense to replace one of the drain diodes to an LED in each set of diodes as a sort of 'potential trouble ahead for this particular cap' indicator?
+Rafal Klepinski
Hi there. There is no need for that. The diodes work just fine.
a flywheel would be interesting, should be easier to spin and it's more constant
DerpyDoom Yes, a flywheel would be very good.
Awesome!
Glad you enjoyed the video! Be sure to share
Nice work, I bet that drilling the rotor was hardest part?
Where did you get your ultracaps?
Thanks Craig. Believe it or not, that entire rotor was drilled out by hand. No drill press. The ultracaps I bought online, (6) for 32 bucks shipped. :-) LOL Best place to buy them is on Aliexpress. Ebay is not the best place.
Proof is in the pudding ~ Wave Form OutPut.
I have a lead-R-line air compressor that is not in use & I have been racking my brain searching for a different head to use on the air pump engine to swap the original head with another that is already plumbed for a spark plug & a carburetor so that I could repurpose the air pump/engine onto a bike? However, IDK where to find just such a head? However, The air compressor does have a working 1/2hp electrical motor with a nice pulley on it, One big & one little. The 100 psi on & 70 psi off switch is fried however, I can run it without but, I DO NOT TRUST THE TANK/GRENADE! If I could more easily find a 70/100 psi switch & a replacement tank, I would love to see this air compressor repurposed! Really, I want to use the piston engine/air pump, find a different head w/spark plug tube/threads & a intake for a carburetor, I would love to use it on a pedal bike!!!!!!!!! Guess it would then be similar to a 2-stroke engine w/no intake nor exhaust valves! Then, it would free up the pulley's for other uses such as exactly what you have done, making a crank generator, & the tank used for a wood gasifier or oil stove!!!!!!!!! Rather then just collecting dust!!!!!!
Thanks
robviolin1 Glad you enjoyed the video!
👍
nice work !
Thanks for showing
+Tobias Rauchschindel
You're welcome! I have many excellent videos on this channel. Be sure to check out my video playlists, rate thumbs up, and share. Thank You
Answer me this question; How do you lose capacitance in adding more in series? Google also agrees with my statement that as you put more in series the capacitance stays the same.
I don't mean to be rude in any way but I'm just saying I noticed something incorrect with your numbers.
The only thing incorrect is your way of thinking. The capacitance of each capacitor stays 500F, but when you connect capacitors in series with one another, the total effective capacitance DROPS! I won't discuss this anymore. This can easily be proven by taking a couple electroltyic capacitors of the same value and placing them is series and measuring the capacitance value with a DMM.
www.kusashi.com/series-capacitors.php
How much to make one like this with a larger bank?
Nice...... awesome..... what was your cost per watt on the build??
Very inexpensive since many of the parts I had laying around. Thanks for watching!
you can make it wind powered
True. :-)
I-m m confused about the fiodes across the caps...
and I would love to see a build of the generator. Why do zyou say that 3 phase
is more efficient than a sigle phase? does taht also matter when it runs as a generator?
The diodes across the caps act like pressure relief valves on a water line. Pressure gets too high, the valve opens up to let some water out to reduce the pressure. The diodes do the same thing with electricity to keep the voltage down. 3 phase is always more efficient than single phase. If you look at a single phase sine wave, you will see areas around the sine wave where nothing is going on(Zero power). When using 3 phase, those areas of no voltage activity, have activity.
Ok, not sure I get the diode thing yet. but will stydy.
I see the 1 phase vs 3phase though. It's because the magnetic fluxes overlap, right.
If you hooked this up to a deep cycle battery, could you just use a 10A solar charge regulator to monitor the charge? Also, I'm not that familiar with the capacitor. Could this be used to charge the cap bank and then discharged to charge the battery or would that flood the battery with too much juice at one time and ruin it?
+Jon Freeman
Hello Jon. If you connected the large wheel to a bicycle, then you could easily charge a lead acid deep cycle battery. The purpose of the capacitor bank is to store the energy for short term use, using a battery would be good for long term storage.
Thanks
+electronicsNmore I understand that caps store and discharge quick. I guess I was just thinking how could I build something similar. I have a washing machine motor that should work as the gen. Could I run that thru a solar chg controller because you can get them so cheap AND charge USB and run DC elec off the load. Basically I'd like to mimic the solar setup I have in my shed, where I charge phones and run fans off the system and whatnot. But be able to have a hand crank setup to patch in for charging at night.
cool. I've been thinking about buying me a decent handheld oscilloscope like the one you got there. Any recommendation? I was thinking to use it for diagnostic on o2-sensors and other car related electronic diagnosis. Any suggestions?
Thanks For Watching. My Velleman HPS-50 is just fine for me. Paid around $235-$250.
aes wave uscope 1 channel
It's a crank, bro !
how long u need to crank that device to charge up the capacitors? and after charged up, how many smartphone could you charge?
It only takes a few minutes of good cranking to charge up that bank. Can't tell you how many, because I never tested. Thanks for watching! Be sure to watch my other great "Bike Generator" video below and share.
ua-cam.com/video/8rj-emSUf7I/v-deo.html
wonder if i can use a treadmill motor as a generator to power,angle grinder,drills,circular saws,sawsall since there ac/dc motors in them , its a pm D.C. 2.50 hp @130vdc/1865 watts with a 1 1/2" pulley serpentine
Yes, you can use them. They work great. "Universal Motors"
electronicsNmore so what size harbor freight gas engine 3 or 5 hp ?and what size pulley should i use? by the way love the icon/logo of your channel!
What classes do you have to take to learn this kind of electronics?
Not sure, I'm mostly self-taught. You can learn a lot online. Be sure to watch my bike generator video below and share. Thanks!
ua-cam.com/video/8rj-emSUf7I/v-deo.html
The link to teslamaker seems to redirect to a page called "anticipate" ? :(
I'll look into it later. The video is much older, so the links disappear or change. Thanks for watching!
Another great video you'll like:
ua-cam.com/video/8rj-emSUf7I/v-deo.html
Thanks for the great video. Forgive the ignorance; I am a complete neophyte to electronics, but I'm interested in voltage regulation for a solar setup I have in my backyard. Would a voltage regulator such as you've shown here be appropriate for that application? I followed the link, but it just took me to the front page of the retailer's website. I did some searching and noticed that they have step-up, step-down, and step-up/down modules. I'm thinking step-up/down would suit my application. Do you agree? My setup is 12v, by the way.
There is really no reason to step up your solar panel unless it is a 5/6v panel. I would buy a step down converter. Make sure the converter is rated for the current you will be using.
Thanks for watching!
I would wire what panels you have in a way that they will generate at least 24V in full sun, so that way when it is darker you can still use a step down converter. Step up converters are slightly less efficient because they rely on shorting and inductor to ground and letting the voltage spike when the short is removed further raise the voltage on an output capacitor.
If you are OCD for extracting every last mW out of the panels, it is sort of difficult to maximize the power output. Think of the solar cells as a water wheel. Put too much load on the wheel, and it will grind to a halt, and no power is generated, just torque. However, connecting no load would let the wheel spin the fastest, but no torque is developed because there is no load, and again, obviously no power is extracted. There is a sweet spot somewhere in the middle where you can get the most power, and that is usually given by the manufacturer of the panels you have. They make special battery charger and regulators that are designed to use solar power as input, and they are controlled impedance to really make use of every last watt of power the panel can offer.
Thanks Power Max. I have a regulator that came with the panel I have, but I am not satisfied with it. The output varies on the load circuit just the same as it does on the charge circuit--I don't see any difference between the two. At least one of my 12V devices (an 18V battery charger) refuses to work with the system because the voltage spikes too far above 12V. At least I'm assuming that is the problem. Like I said, I'm a neophyte. BTW--I only have 1 panel, and it is 12V. I bought the Renogy 100W panel kit with the 30A regulator (aka charge controller). Pretty cheap--$180 for the set, including mounting brackets and a good long set of wires. But sometimes cheap is just cheap I guess.
Rick Rose $180 for just the regulator, or for the kit as a whole? $180 for just solid state circuitry sounds very $$$.
My guess is that the output of the regulator is supposed to be connected directly to a battery, and it will charge the battery at different rates, attempting in optimize the load on the solar panels so that the most power is extracted, but I really don't know. It could be that it failed and burned up, not really sure.
5 x 500 Farads in series produce 100 Farads - would you mind how the calculation ...thanks in advance
When you have 2 equal value capacitors is series, the value will be HALF. 500 & 500 = 250F, another set would give 250F, both of those sets in series together equal 125F, then the final 500F lowers it to 100F. Thanks for watching! Be sure to rate thumbs up and share my channel with others.
Very interesting calculation indeed i thought it was just as simple as 500 / 5 = 100. Thanks anyway
That works if all the values are the same. This is the formula: Total Capacitance = C1 x C2 / C1 + C2
Hello there, I have a coffee grinder ac motor and I wish to use it to generator but I think I will have to do a conversion just as you did. Any advice?
Use a larger motor. The little ac motor found in a coffee grinder will provide you with very little power unless you can find some way to spin it VERY fast.
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