Bicycle-generator (school project)

[Alexbrn]

Hey guys,

Me and 3 other colleagues are trying to create alternative energy through human power by building a pedal-powered electricity generator.
Here's a simple schematics we've made with some devices we've found or got offered:



We followed the instructions on https://www.pedalpowergenerator.com/#FREE because none of us has ever built a circuit or has much knowlege on electricity (besides some basic stuff they tought us in physics class).
This is their schematics:



Although we're not going to install a solar panel.

We were wondering if such system would work. If the devices we've found are appropriate or if we're missing something.
Thank you for your time

 

[betwixt]

Basically correct - except the picture shows a 24V charge controller and a 12V generator.

Because you are generating a relatively low amount of power, you could possibly leave the charge controller out altogether and just connect the generator to the battery through a blocking diode. If the generator is DC, you may even be able to leave the blocking diode out as well because there will already be one inside the generator.

The charge controller is really there to 'dump' excessive power so the battery is protected. Usually it works by diverting the power to a resistor where it is safely converted to heat. If you are using a pedal generator, unless you are an Olympic grade cyclist you probably wont generate enough power to cause damage anyway.

Brian.

 

[Alexbrn]

Thanks a lot Brian, this is just what I was hoping to hear

 

[hameeds01]

If the generator is DC, you may even be able to leave the blocking diode out as well because there will already be one inside the generator.
Brian.

but dude what gonna happen if the DC Generator is of permanent magnet stator + commutator brush type ??

 

[betwixt]

Hadn't thought of that - thank you hameeds01.

If it is that type of generator, keep the blocking diode.

If its an AC generator, use a bridge rectifier diode to make best use of the whole voltage cycle. Looks like you have a DC generator though so that shouldn't be a
problem.

Brian.