Contactless dynamo powering bike safety lights

Step 3 Coil tests and circuit

On the scope you can have a clue of what you're generating with your coil. If you are able to save the waveform, you may import it on a circuit simulator and try to model your project.

Unfortunately I could not get Led3 to have a continuous conduction in simulations although it happened always on the real circuit. Maybe it is because I have not used any inductors on my coil model.

Notice that the circuit is not symmetric due to the coil's generated voltage waveform having it's energy concentrated on positive values. This is all dependent on the magnet construction and the magnetic circuit you used around your coil.

Comments

[rpvanpatt]

 how much voltage is put out by the coil/magnets?