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Ocean Wave Power Generator Demo
Unit (10-4-2009) |
A while back, a Discover Circuits visitor
wanted a simply way to demonstrate how electricity could be generated from the up
and down movement of ocean waves. The system was to be part of a science fair
project, showing different renewable energy sources. |
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I gave this some thought and came up with the system
shown below. It uses a simple plastic foam float attached to a lever arm, which is
connected to the shaft of an inexpensive stepper motor, available from
www.jameco.com. The AC voltage output of the stepper motor was connected to a
few Schottky diodes to convert the signal to DC. When properly mounted in a
tank of water, the motion of a wave in the tank causes the shaft of the stepper
motor to move. That movement produces enough electricity to turn on the visible red
LED. |
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Click on Circuit Below to view PDF of Schematic |
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eMail David A.
Johnson, P.E. about this circuit |