[6.002x] Fourth lab session

Hello all,

The midterm is now over! 

The next lab assignment (attached) will introduce you to capacitors and inductors.

-Tony

[Link: Lab worksheet]

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My LC ringing test:

Below, a toy DC motor is used as a generator to produce voltage:

• A battery-powered motor drives a second motor which is used as a generator. The two motor circuits are electrically isolated.
• The output of the "generator" (yellow scope trace) is cleaned up with a diode and capacitor (blue trace).
• The cleaned DC output is used to power an AVR microcontroller, which is running a "LED blink" program.

Kind of nifty setup. Inspired by several students here who are interested in power generation.