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91.548 Assignment 1
due January 30
Updated Tuesday, 28-Jan-2003 01:10:21 EST
- Go through the lab kits from the 91.305 class and test the
functionality of the dev board (using the checklist).
- Read Chapter 1 of The Art of Electronics Student Manual,
including the in-class notes, the lab, and the worked examples.
- Investigate V= IR with the limited test equipment you have
available (i.e., shared oscilloscopes). Measure the voltages on the
batteries. Build voltage divider circuits and measure the voltages
across the different legs.
- Refer to Experiment 13 on page 27. Rather than plotting
the VI curve of a diode, plot the curve for the light bulb in your lab
kit. Measure at least four voltage/current points, including one with
full brightness (approx 60 ma), one with the lamp dim, and one with no
light at all. Characterize the graph.
- Understand basic NPN transistors used as a switch. Figure out
how to get a 7400 series chip to drive an NPN transistor and thereby
turn a lamp on and off.
- Experiment with various DC motors in the lab. Figure out how
much current they draw under no load and full load (that is,
- Under controlled conditions, blow up at least one of: LED,
transistor, or electrolytic capacitor. Do NOT blow up a
tantalum capacitor unless you want to pay me $2 to replace it.
- Do something else cool with the parts in the lab kits and
around the lab.
For each of these exercises, write up a narrative and/or circuit
diagram (as appropriate) explaining what you did and how you came to
believe your interpretation of what was going on was correct.
Tuesday, 28-Jan-2003 01:10:21 EST