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Lecture 7 Mar 5 by Mind Map: Lecture 7 Mar 5
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Lecture 7 Mar 5

Main topic: Lab 6/7 Circuit rectifier, zener diode, LED, etc.

Opening topics

Answer questions posed in lab mindmaps


Review PhET p-n junction current

Diode I-V curves

Wikipedia Diode

Wikipedia Zener Diode

Group work

Circuit VI, 1. What is the voltage across the zener diode? (it's reverse breakdown is about ??? (Look at data sheet)

Circuit VII, 2. With R = 1 kohm, what is the current through the LED? From data sheet, it's forward threshold voltage is about 2.3 V

Zener diode

Physical understanding, Wikipedia article, Heavy doping, Thin depletion region, Thinner region, higher / lower e-field?

Practical understanding, I-V curves