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Single transistor balancing robot

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Uploaded by on Feb 15, 2007

This is a single transistor balancing robot. It's stable up to about a 25 feet run. IR is used as a sensor. You can see a slight oscillating behavior and eventually these oscillations cause the robot to fall over. This robot is extremely sensitive to initital conditions.

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Uploader Comments (roboanalogtom)

  • single transistor?

  • Yup, single transistor...in the linear domain. I'm using a little infrared range finder as a sensor (to be fair, that's more that one transistor!) and using the output signal to modulate the MOSFET. What's shown is a finely tuned proportional only system that is only capable of short term stability (like pretty much all P only balancing systems).

    Although this is a very simple robot, it can be a challenge to get it to work.

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  • can you upload shematics?

  • do you have any schematics?

  • looool :D

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