I just stumbled upon a way to charge batteries and capacitors from slow-motion, so to speak. It's of course even more efficient in high RPM's as well.
Maybe it's all well known, but the difference is quite significant, so I thought I would share it.
A magnet passing a coil with a rectifier charging a capacitor.
If You connect another coil, with a switch, in parallel with the first coil, possibly away from both the first coil and the passing magnet, You get a lot more charge.
See my video at YouTube - Charge from slow motion
Look at the minimal circuit below, L1 is the coil the magnet passes by.
/Hob
Maybe it's all well known, but the difference is quite significant, so I thought I would share it.
A magnet passing a coil with a rectifier charging a capacitor.
If You connect another coil, with a switch, in parallel with the first coil, possibly away from both the first coil and the passing magnet, You get a lot more charge.
See my video at YouTube - Charge from slow motion
Look at the minimal circuit below, L1 is the coil the magnet passes by.
/Hob
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