5K40.80 Genecon Motor/Generator

Concepts

Electromagnetic induction, conservation of energy, Faraday's law, motors and generators, DC signal generation

Overview

The Genecon motor/generator is a motor or hand cranked DC generator that is used to drive another Genecon motor/generator and/or to light a series of LEDs. When the handle is turned, it rotates a loop of wire located between two permanent magnets inside the generator. As a result, there is a change of magnetic flux through the area enclosed by the loop with time, generating an EMF. Note: the aparatus is small but the handle motions and the lights are visible in a large lecture hall.

Details

Equipment

  • [2] Genecon motor/generator (a handheld device that can be used as a motor or a generator)
  • [1] Wire connector
  • [1] Circuit board with LEDs

Important Notes

  • The Genecon motor/generators are fragile. Handle with care.

Script

To drive another motor/generator:

  1. Connect the leads of two Genecon motors/generators.
  2. Crank the 'generator' handle. The 'motor' handle will rotate.
  3. Hold on to the 'motor' handle. Notice that the 'generator' now requires more effort to crank.

To light a series of LEDs:

  1. Connect the motor/generator to the circuit.
  2. Turn the crank of the generator at a speed that lights up the LEDs.
  3. Turn the crank faster, notice that the brightness increases.
  4. Reverse the crank, showing directionality of the LED operation.

 

Additional Resources

References

  • PIRA 5K40.80
  • "Adventures with the Genecon Hand Operated Generator"

Disclaimer

  • Don't attempt this at home!

Last revised

  • 2018

Technicals

Related AV

Related demos

If you have any questions about the demos or notes you would like to add to this page, contact Ricky Chu at ricky_chu AT sfu DOT ca.