Why use A blocking diode with battery charging dynamo bicycle generator
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- čas přidán 27. 08. 2024
- This video brought to you from PedalPowerGener...
This is a simple demonstration of why a blocking diode is used to charge a battery.
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This example shows a kids bike with 20 inch dimater wheels mounted on a bike generator stand. An adjustble powertwist Vbelt is used to connect the rear wheel to the generator. As you watch you will see what happens when you connect a 12V battery directly to a bicycle generator stand that uses a DC Permananent Magnet Motor as a generator (Without a blocking diode) . The motor starts spinning by itselft which will drain the battery. When the diode is inserted then the problem goes away. The battery will charge the moment the generator output Voltage exceeds 12V. A charge controller may be needed to keep the battery from being damaged. (Typical max charging Voltage of a lead acid battery is 14.8V). The best charge controller for this is the NC25A sold here: amzn.to/3GjeeHO
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I feel thankful this reconditioning plan czcams.com/users/postUgkxcJ22tnHH9l1vjdIdEIG27iOG55P7LXI8 was founded. I was just about to throw out Three old batteries that I thought were completely dead. Having said that, I tried reconditioning them and it took me less than an hour to acheive it! No matter what type of battery you like, the procedure will work.
Your video just solved all my problem on how to charge my battery bank with my self invented 28 volt generator. Thanks a million. I will forever remain grateful.
Iam doing the same thing but why am I failing
So glad that it helped you out. Let me know if you need any more help, Bradley Whaley, Electrical Engineer, PedalPowerGenerator.com
Nice and easy to understand. A few videos forget about diode. Thanks.
good , some one who , shows ,,plain and simple .how to use a blocking diode, thank you
I'd agree, 💯 thanks bro 😊
.....THANKS. I'M TRYING TO FIND COMPONENTS TO USE, IN ASSEMBLING A COMBINATION GENERATOR, & BATTERY, (12VDC), TO USE TO POWER ANY ONBOARD ELECTRINICS (HEAD LIGHTS, TAIL LIGHTS, STROBES, ETC.) CAN YOU RECOMMEND ANY SOURCES FOR PARTS, OR, READY MADE SYSTEMS?...
I can help you if you give me a little more details like: 1) How many Watts total are you going to consume and for how long? For instance: Are your lights going to consume a total of 100 Watts at 12 Volts? if yes, that would mean that you will need to supply about 7 Amps of current to your lights. If you want your battery to last one hour at that rate, you would need to double that number and get a battery that is approximately a 14 Amp hour battery or higher. The big question is how much space do you have for the battery?? Is weight a consideration? Will a 50 lb battery be too heavy? Best Regards, Bradley Whaley, Electrical Engineer at PedalPowerGenerator.com
@Daflaminasian I have had wires accidentally touch and go up in a huge cloud of smoke and melted copper metal - it is a very scary site when a battery is shorted with only size AWG wire - so the fuses really are important to have on both terminals if you are a beginner at this sort of thing.
saw the video on blocking diode. if you can connect it while you are peddling how much resistance is created.
what if you change the rotation of your generator? would it change the polarity of the current as well?
He would be able to feel it in his left leg then, rather than in his right.
@lancerooke Those are called crimp on terminals AKA spade terminals. Home depot has them.
Is there any problem if I connect in the negative side? With the polarity if the diode reversed?
Very well presented video, and easy to understand...well done..
@Nachito667 Yes, this is counter intuitive, but you are right. The generator pulley is spinning in the same direction when the battery is discharging as it spins when the battery is getting charged!
Thanks for the great advice, that's what I was trying to figure out, thanks
How many rotations it will take for complete charging approximately?
very good explanation and demonstration!! ty!!
@toddmorrow1 To make 100% sure of which battery is hooked up use a volt meter to check for which wire is positive and which wire is negative. If you are using the generator shown in this video from pedal power generator website then it is the red wire.
@tennirva This problem is handled by using a charge controller which automatically opens the connection to the battery when the generator is providing too much current.
Thank fot the info. Will look for a blocking diode to make my project
FYI , Blocking diode amzn.to/3BdnquB, Generator dynamo here amzn.to/3RCicOq
You could put also a bridge rectifier,if you use ac alternator(bicycle dynamo also produce ac waves)
This particular type of generator puts out DC Votlage. So a blocking diode is all that is needed. If you generator or dynamo puts out AC Voltage then you are correct - you will most definately need a bridge rectifier. Let me know if you have any more quesitons, Brad Whaley, Electrical Engineer, Phoenix Arizona PedalPowerGenerator.com
Very good video sir very helpful
What is the name of that register
Kya ye register tractor ki bettery ko charge karpayega
What is the output of the DC generator that could possible to charge a 12v battery?
just find an old car and take its alternator/belts/rectifier
can you do a video how to installed a bloking diode on solar baterys and charger controller of solar panels?
nice video!!!
whats the name of that generator so i can get it from the store or site ?
+drrobotnikmeanbeanma This generator is the MY1016 electric schooter motor. You can do a search on the web for "MY1016" Motor and you will have no trouble finding it. This particalular version has been taken apart and modifed with air ventilation holes andn a custom fitted V-belt pulley. From brad at pedalpowergenerator.com
that was a good explanation
What is the value of that diode
Is it possible to keep charging the battery while the cycle is running?
Good idea I need this system for a quad bike.
You have a quad bicycle or a quad ATV motorized bike? Either way it's' just a matter of finding a DC Permanent magnet motor to use as a generator (That's right, a DC PM Motor also acts as a generator /.dynamo). There are lots of them on Ebay at a great price. Then adapter the generator with a rubber roller and mounting bracket that fits your frame, lift your rear wheels off the ground and you've got your own power.
Can I keep on charging with my battery on my bike while ridding with my dymamo generator keeping my battery charged with a inline blocking diode that will let current return back to my battery like on my ridding lawn mower? Is that possible without burning out the componets?
do you have any idea for stop charging when the battery 100% full
+A li Hellor there, Yes you can put a Volt meter on the battery while your are charging. Then stop occasionally to let the battery "Settle down" and when it reads 12.8 VDC for a lead acid battery then the battery is fully charged. Gel Cell batteries are slightly different. Check the specifications for your battery by consulting the manufactures website. Best Regards, Bradley at pedalpowergenerator.com
vespas have a simple system and it used to be easily available, otherwise any car/bike regulator rectifier you get from the breakers yards and while you are there get the alternator and all the wires and even the belts.
Get or make a Buck/Step-down converter, or get a voltage Regulator, then put that between the generator and blocking-diode/battery. And whether you use a regulator or Buck converter, make sure it has an input voltage range, that covers the different voltages your generator makes, at different speeds.
I prefer Buck converters, because their outputs can be adjustable. So if you want to charge a battery to 80%, to preserve it's capacity. And or if you make a custom battery pack. An adjustable Buck converter can charge to the exact voltage you want or need.
Buck converter.
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To run a water motor of 746W 450V 1hp
What should be the power of low rpm DC motor
Power at high Voltage is the same power at low Voltage. So you would need a 746W low Voltage DC generator / PM motor to put out 746W and then step it up wth a DC to DC converter, or inverter. Can I ask what your project is ? just curious.
why somepeople put one diode in the red wire that come out from the
alternator ?i dont undestarnd. in try to do the same, i bought a geo
metro car alternator it has regulator and rectifier
,have the bateries, but i think that someting is not working,cause I
charge the batteries and then they run out when they are used
Do that battery tolerate variable voltage produced by motor, I mean like that motor gives low o/t voltage at low rpm and high o/t voltage at high rpm, so does a motor can take this change of voltage or it will get damage?
Yes the lead acid battery in the video can handle a max charge Voltage of 14.8 Volts DC. There are two ways to make sure that you do not damage a lead acid battery when charging: 1) Use a Volt meter and watch the meter while you pedal to make sure you don't go over 14.8 Volts. 2) Use the NC25A charge controller sold here: amzn.to/3GjeeHO
Let me know if you have any more quesitons, Brad Whaley, Electrical Engineer, Phoenix Arizona PedalPowerGenerator.com
Is there a unit besides the motor being used to charge this? Because if you wire this to ground on the motor wouldn’t the motor automatically get electrically moved even with the diode?
The permanent magnet DC motor you see in the video is the actual generator also. There is nothing else in this system. Many people don't know about this so don't feel bad.
ok so i have a 12V DC motor that runs an actuator when the actuator is under load extending itself the motor is using power and has no issues but when it goes down it seems like the load is pushing the DC Motor and causing a Generator effect and a backfeed to the Controller box with is causing weird noises and a drop on the DC Motor RPM would adding one of this Blocking Diods fix that issue of backed due to the load pushing down on it?
Absolutely, the diode would take care of this problem. Brad from Blockingdiode.com
How long does it take to charge this battery with this process
nice video! sir what diode i use if i charge 36 or 48 volts battery because i create dc generator 50v dc output
awsome video mate
yes, but if your motor never gets up to the battery voltage of 12v...can you boost it up somehow?
Good question, the way it is boosted up is that you simply pedal faster. Or use a bicycle that has gear shifter so you can adjust the speed of the generator. Let me know if you have any more quesitons, Brad Whaley, Electrical Engineer, Phoenix Arizona
If you instead used an alternator, how would the wiring be different? Would you need an inverter?
An alternator from a car could also be used in the same way as a generator. There are two basic types of alternators. One type is a one wire generator that has a built in self regulated excitation Voltage so that the output of the alternator always stays at 14.8 Volts DC. The other type of alternator uses an external Voltage excitation device to do the same thing. In both cases Car alternators are MUCH less efficient than permanent magnet DC motor generators.
How long would it take for the battery to be fully charged using this method ?
Hello a typical output of the generator is about 5 Amps. If you have a 29Amp Hour Battery then you divide 29 / 5 = 5.8 hours of charging. I know it slow but our bodies don't put out a whole ot of electrical power. Brad Whaley, Electrical Engineer, Phoenix Arizona
I think the current flowing through the battery isn't flat, right ? As I found on some resources, the "AC ripple" must not be too high in VRLA battery charging. Otherwise, it will reduce the battery life. :)
If you look at the data posted at the following link, you will see actual data representing the current (Amps) shown on the graph. pedalpowergenerator.com/dynamo/mns-power-voltage-output-curve-vs-rpm-pulley-generator/ The current is not flat. It is constantly changing with each stroke of the bike. If it was a solar panel then the current would be very "flat". Best regards, Bradley
@kricotas OK - will do!
Awesome video Marvellous amazing 😍🎉✨
does that generator have permanent magnet?
How could he feel the battery charging?
When you start to pedal you will feel it get very hard and that's how you know the battery is charging. But the best way to know is to install a power meter like this one: amzn.to/3Vr2C9I Let me know if you need any help, Bradley Whaley, Electrical Engineer - Phoenix Arizona
does the diode reduce the efficiency of the system any?
its a great video...but i dont know whats the thing that he use...especially the blue things...can anyone give me the list of things?
+torres villa Hello there. The blue part is a 12 Volt rated fuse sold at an automotive car parts store. Blue means that is rated for 15 Amps of current. The fuse protects you against starting a fire if the two wires from the battery touch together. That happened to me once time. It was very bad. Lots of smoke filled a building. Best regards, Brad at pedalpowergenerator.com
+bicyclegenerator Hi there! I'm a motorcycle rider, I am wondering if there a diode that will stop the stator charging the battery when it hits 14volts? Thanks
hello sir, can you please tell me which dynamo are you using?
Hello Amol, the generator / dynamo is sold here on my listing or through my website: amzn.to/3YN8LA7
hey it looks like the dc motor is spinning the same way when its being powered by the battery and when its being used to charge the battery, is that right?
That is correct. The current from the battery flows from positive terminal through the generator which is also a permanent magnet DC motor. From the generator it flows back into the negative terminal. The generator / motor only changes direction when the polarity is changed. When charging the battery, the bike generator drives the generator in the same direction and electrons (AKA Current) flow from the positive terminal of the generator into the battery positive terminal, out the negative terminal and back to the generator. I hope that makes sense. Let me know if you have any more questions.
A diode is not 100%.
Add several on series and take a reading.
Good video, well explained.
Where would you place the "charge controller" and how would it work?
A charge controller would be placed in series with the diode . Here is a video I made showing step by step how to wire up the charge controller. pedalpowergenerator.com/diy-byo/step-3-installing-charge-controller/
What generator are you using and where can it be purchased from
+Ruven Naidoo This generator is the MY1016 electric schooter motor. You can do a search on the web for "MY1016" Motor and you will have no trouble finding it. This particalular version has been taken apart and modifed with air ventilation holes andn a custom fitted V-belt pulley. From brad at pedalpowergenerator.com
Hi mate I have a 5v 7 Watt 1.4A portable solar panel to charge my phone while camping. charges well while sun is shining,but if accidentally leave my phone connected to solar panel when sun not shining, phone (though turned off) goes flat, think when panel stops producing voltage it drains the phone battery ??? can a inline diode stop this and what would be the diode value needed ???? hope you under stand explanation
I understand what's going on, yes a diode in line would most likely solve the problem. You can get that will handle the voltage and current you specified above, you can get one from any electronics store. It's called a "rectifier diode" not "Zener diode" , costs less than a 1.00 US
Nice explain..
what did you mean by saying " when we get enough voltage from the generator to cause the current to flow from the generator positive liune up into the battery, this diode will let that voltage through will let that current through in the direction of the battery " ... ? please it's urgent and thank you
Current flows from the generator to the battery when the potential voltage from the generator side is higher than the battery voltage. For example, if your battery has a resting voltage of 12.5 Volts, and your generator is putting out 12.6 Volts, then a little bit of current will start to flow from the D.C. Generator to the battery. As soon as the generator is lower than the battery, the current will flow from the battery into the generator, that's why you need a blocking diode. Best regards , Bradley at Pedalpowergenerator.com
benjamin john I responded to your question, Bradley
thank you very much :D
and what's the serial number of the diode that you used ?
Can I ask how much amperage you get? Say on medium and fast speeds?
Hello, sorry for the late reply. Assuming an adult in good athletic condition gets on the bike generator connected to a small 12V Lead Acid AGM battery which has about a 2 Ohm resistance, the current from the generator can reach up to 15 Amps. Here is actual measured current data that I have recorded while riding a bike generator at this URL tinyurl.com/yyuenzwv The bike generator is from my website pedalpowergenerator.com Please let me know if you have any more questions. Best Regards, Bradley Whaley, Electrical Engineer
Which diode is charge to a tractor battery
In order to pick out a diode to charge a tractor battery you need to look at the specifications of the battery and see what the max charge current is . Typically a 100A diode will work for this. But you will need to mount that diode do a heat sink (Some piece of metal) to dispate the heat loss from the diode. For instance this is a 100A diode that might work for your situation. You would need ot send me photos of your battery for me to help you out. amzn.to/3WFxPak Let me know if you have any more quesitons, Brad Whaley, Electrical Engineer, Phoenix Arizona PedalPowerGenerator.com
What motor is that?
How can make that diode
Can you add a part list, and where to find them?
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Generator is sold here: amzn.to/3YN8LA7
Adjustable length belt is sold here: amzn.to/3YJeV4p
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can u say the blocking diode range
can you tell me what kind of diode you are using? i'm kinda new and i want to learn about this things..
This is a blocking diode like the one shown on my website blockingdiode.com
hello
the video is really usefull
i am building a vawt
i am looking for a dc generator similar to the one you are using
can You tell me the specs of the generator please?
I’m about to build a mini VAWT using an old cordless Drill, I have worked out a design that I like, I have all the materials except a Blocking Diode. I think the Cordless Drill DC motor will give me enough electricity for lights, TV, ph charging etc, so can’t wait to work out where I can scavenge a Blocking Diode and find out what Ampage etc I need one to be!.
sir can u tell me blocking diode rating
Couldn't you make a similar system attached to a gas powered bicycle so it can charge a portable battery station?
That is a great idea , What kind of gas powered bike are you looking at it ? Does it have a 2 stroke motor ? You can find out the horse power rating of the motor and then do a calculation using the conversion rate of 745 Watts per horse power. Assuming a 50% efficiency in energy conversion from Gasoline to electrical generator output and a horse power rating of .5 then the approximate power output of your gas powered bike would be approximately 0.5 x 745 x 0.5 = 186 Watts. you could use this power to charge a 12V lead acid deep cycle battery. Then connect an AC inverter to convert the 12V from the battery to regular power that you get out of your wall outlet in your house. This is 110V AC . (DC stands for Direct Current, AC Stands for Alternating current).
how many voltag in battery
I trying to find that kind of belt connecting from bike to motor but cannot find out.
can you tell me that belt name or give me a link on eBay?
This belt is called an adjustable V-belt. There are a few different types. You can see how to install it looking at my video here: czcams.com/video/X0r9T7RwdPs/video.html and here is where you can buy it. amzn.to/2TnEabb
i want
to have that kind of toy, what is the rating of the motor ?
This a DC permanent magnet motor used as a generator. Here is the information on the motor: amzn.to/2YFCiAl
Now make us a manual switch to switch from run to charge mode on our electric scooters and ebikes.
No reason these things can't have regene going down hills or being pulled along awhile.
This is an interesting request. To do this we would have to Use a horrific current transducer to measure current. As long as current as flying in the positive direction charging the battery we would leave the switch closed as soon as the current stops flowing in this which would open the switch is a mechanical relay that we’re talking about. You can buy one at O’Reillys or AutoZone for three or four dollars. The Current Sensor is available http//measure-current.com. This is our other website And small business that we manage.
and what is detail
what are the use of those fuses?
If an electrical short occurs in your system, the energy in your battery will melt the wires into a big smoke fire within 4 seconds if you do not have fuses. The fuses protect you from fire. Let me know if you have any more quesitons, Brad Whaley, Electrical Engineer, Phoenix Arizona PedalPowerGenerator.com
Can you just mention the Belt type used in the video...?
Soham Kulkarni the belt type is called power-twist, adjustable length belt v-belt, size 3L. 3/8". Wide. Best regards, Bradley whaley pedal power generator.com
What is a specification of your generator
Hello, I have posted the specifications on the generator here: tinyurl.com/yxaxhlgl Please let me know if you have any more questions, Best Regards , Brad Electrical Engineer, PedalPowerGenerator.com
because it is one direction current
what kind of generator are you using?
This a generator from our website pedalpowergenerator.com. It is a DC permanent magnet scooter motor used as a generator. Many people don't realize it but you can use any DC permanent magnet motor as a generator.
can you tell me how many volts in that dc motor?
The generator / dynamo in this video is really a permanent magnet DC motor . It can put out 0 to 40V DC It is sold here: amzn.to/3YN8LA7
Let me know if you have any more quesitons, Brad Whaley, Electrical Engineer, Phoenix Arizona PedalPowerGenerator.com
I think you need to ride that bike every once in a while, you're out of breath installing a diode
I live 20,000 feet up on a mountain where there is almost no oxygen... so it's hard to breath.
bicyclegenerator
I need to remember that excuse....
so if it is hard to breathe where you are at, how are you ever goind to pedal that bike?
@@bicyclegenerator Appreciated man 🙌
Just so you know, DC current flows neg to positive, not the other way around.
Not true, the current (electrons) flows from positive to negative. The holes flow from negative to positive. Brad at pedalpowergenerator.com
Can we charge a 12 v battery with 24 v generator ?
Good quesiton, the output Voltage of your generator is entirely based on how fast you pedal. So you control how much Voltage the battery will see. If you hook a Volt meter you can watch the Volt meter to know how fast to pedal. A typical battery that is lead acid style can handle a max charge Voltage of 14.8 V DC. Let me know if you have any more quesitons, Brad Whaley, Electrical Engineer, Phoenix Arizona PedalPowerGenerator.com
if i have a generator of 24v and battery of 12v when i connected generators wire with battery and battery wire with generator would it charge the battery or the battery would drain and if i put blocking diode between the wire what will happen plz reply my comment brother.......and sorry for my bad english...plz reply
It depends what type of generator you have. If you have a 3 phase AC generator that puts out alternating current you will have a rectifying diode to convert the AC to D.C. To charge the battery. Can you tell me if you have a generator that puts out AC? Or D.C.?
bicyclegenerator i have dc 12v generator
so to charge battery the positive wire needs to be connected positive and negative to negative.
Yes, for the bike generator in the video that is correct. BEWARE: Just because a wire from a generator is red, does not mean it is positive, always check first with a volt meter.
If you have made your own generator setup then it is important to use a volt meter to confirm which wire is positive and which wire is negative. It may be the red wire is negative in some situations like when you spin the generator (Permanent magnet DC motor) in the opposite direction than its normal direction. Once you have established which wire is positive then put some red tape or red heat shrink on it of it's not already a red color. And yes- the red (POS) wire goes to the + side of the battery.
@bicyclegenerator Thanks!
Which model daiod u useing bosssssssssssssssss
This diode is called a "Rectifier Diode" like the one on amazon with this P/N B009IN1KB8
number of this diode plz
Here you go: amzn.to/3Wn6o5j
thans good info
we can produce endless amount of energy and clean water by electrolysis of sea water then take the hydrogen alone to high attitude where we combine it with atmospheric oxygen and drop the water on hydraulic generator from this high attitude as in dams
WHAT IS THE BLOCKING DAIOD MODEL??????????????????????
Basically when you are looking for a "Rectifier Diode". But first you need to determine what your peak voltage will be and your peak Amps (Current). Then pick a diode that will handle twice the amount that you measured so that there is very little chance it will over heat. The one in the video is P/N B009IN1KB8 on Amazon
take a hit off an inhaler
You can feel the battery charging!
Yes you actually feel more drag on the pedals as the battery is charging - if you disconnect the battery, the drag disappears.
Giuliano Stroe: am i a joke?
How to make free energy generator 220v from washing maching motor diy free energy generator
Good!!!
The diode will heat up.
Yes there is a loss to the .8V drop across the diode. A typical output of a child size bike generator is about 4 Amps of current. So the total Watts disapated in the Diode is equal to 0.8V x 4A = 3.2 Watts. Thanks for pointing this out, Bradley Whaley, Electrical Engineer, Phx Arizona
will you sell it
Yes you can get more information at my website at PedalPowerGenerator.com
Hey bro
Thanks for watching - let me know if you need help with your project , Brad Whaley, Electrical Engineer, Phoenix Arizona
Hay moy coleges wery god okey
sir can u tell me blocking diode rating