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Design of portable battery charger using the pressure generated through motion

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Abbey80

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Can anybody help to put light on how to design a battery charger device using pressure generated through motion
 

BradtheRad

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It might help to look at the LED flashlights containing a 'shaker' device which will charge a battery (capacitor? supercapacitor?).

I'm pretty certain it consists of a coil of thin wire. A magnet travels back and forth in the center of the coil.
Alternating positive and negative pulses emerge.
A diode (or diode bridge, etc.) rectifies these into DC pulses, to charge the battery.
 

Abbey80

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Mechanical motion will be well soothed for this project .I think Mr BradtheRad got the idea of the project but in my area here in Lagos LED flashlight that contain a shaker is not common but can you throw more light on how we can actualize the second option you mentioned.
 

BradtheRad

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Abbey80

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Mr BradtheRad i really appreciate your link is of great help you will be informed as the project progress thanks
 

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