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Rotor systems like in some automatic watches produce very little energy. Even at 100% efficiency it wouldn't be able to sustain an electronic circuit. Edit: I

by fla 11y ago

Rotor systems like in some automatic watches produce very little energy. Even at 100% efficiency it wouldn't be able to sustain an electronic circuit. Edit: I was wrong. See below.

aidenn0 11y ago
My automatic watch contains an electronic circuit, so I'm not sure what your point is.
- fla 11y ago
  Interesting. What is the circuit for ? Are you sure it's not powered by a standard watch battery ?
  - aidenn0 11y ago
    Yes, it is a quartz movement with a capacitor that is charged by a mechanism similar to a mechanical auto-winding watch. https://en.wikipedia.org/wiki/Automatic_watch#Automatic_quartz_or_kinetic_movement https://en.wikipedia.org/wiki/Automatic_watch#Automatic_quar...
mattgrice 11y ago
Seiko Kinetic watches are quartz watches that are powered by movement. That's 30 year old technology.
- fla 11y ago
  I stand corrected
Vexs 11y ago
Not only is that not what I was thinking of, which was more akin to a grandfather clock, but I don't believe that at all. Just using piezoelectric vibration sensors I was able to charge a cap to light up an LED- a rotor mechanism would generate much, much more power, and consider today's energy efficient ICs I see know reason why it wouldn't work.