Lab 4: Characterizing Diode
Behavior, Light-Emitting Diodes,
and Rectifier Circuits
Learning Objectives
• Understand how diodes work
• Characterize voltage and current relationship of a diode
• Use diodes to convert AC voltage to DC voltage
https://www.youtube.com/watch?v=Fwj_d3uO5g8
Semiconductor
Material with electrical conductivity between conductors and insulators.
Controlling Semiconductor Conductivity by
“Doping”
• Elements are
“implanted” into
semiconducting
materials to create
extra electrons (-) or
holes (+).
P-N Junction – Diode – One Way Valve
Anode
Cathode
https://byjus.com/physi
cs/p-n-junction/
Watch Video
Nonlinear V-I Relationship
Breakdown voltage
Offset voltage
Full wave rectifier
The Positive Half-cycle
The Negative Half-cycle
https://www.electronics-tutorials.ws/diode/diode_6.html
https://how2electronics.com/full-wave-rectifier-basics-circuit-working-applications/
Full Wave Rectifier with Smoothing Capacitor
Light Emitting Diode (LED)