Diode Circuit Analysis
ELEC 121
January 2004 ELEC 121 2
Diode Circuit Analysis• Diode Circuit Analysis
– Graphical Analysis using Loadlines– Analytical Analysis using KVL and KCL
• LEDs• Zener Diodes• Diode Resistance
– Static Resistance RD
– Dynamic Resistance rd
– Average Resistance rdav
• Diode Characteristic Curves• Simulation
January 2004 ELEC 121 3
Series Diode Configuration
January 2004 ELEC 121 4
Drawing a Load Line to Find the Q Point .
January 2004 ELEC 121 5
Diode Circuit and Characteristics .
January 2004 ELEC 121 6
Load Line Example
January 2004 ELEC 121 7
Determining the Unknown Network Quantities
January 2004 ELEC 121 8
Network Example
January 2004 ELEC 121 9
Determining the Unknown Network Quantities
January 2004 ELEC 121 10
Network Example
January 2004 ELEC 121 11
Zener Diode Equivalents
January 2004 ELEC 121 12
Basic Zener Regulator
January 2004 ELEC 121 13
Determining the State of the Zener
January 2004 ELEC 121 14
The Zener Equivalent Circuit Operation
January 2004 ELEC 121 15
Zener Diode Regulator
January 2004 ELEC 121 16
Determining V for the Regulator
January 2004 ELEC 121 17
Q-Point for the Network
January 2004 ELEC 121 18
Network in the conducting state
Recommended
