Solving a Diode Circuit with Varying Resistances

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SUMMARY

The discussion focuses on solving a diode circuit involving a diode with a reverse saturation current of 1pA and an ideality factor of 1.15, connected in series with a 200-ohm resistor to a 5V DC supply. The current flowing through the diode at a temperature of 290K is calculated using the Shockley diode equation. Additionally, the impact of placing an 800-ohm resistor in parallel with the diode is analyzed, demonstrating how the current changes under this configuration.

PREREQUISITES
  • Understanding of the Shockley diode equation
  • Knowledge of series and parallel resistor configurations
  • Familiarity with basic circuit analysis
  • Concept of reverse saturation current in diodes
NEXT STEPS
  • Study the Shockley diode equation in detail
  • Learn about the effects of temperature on diode current
  • Explore resistor combinations in series and parallel circuits
  • Investigate the impact of varying ideality factors on diode performance
USEFUL FOR

Electrical engineering students, circuit designers, and anyone interested in semiconductor physics and diode applications.

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Homework Statement


A diode with reverse saturation current of 1pA and an ideality factor of 1.15 is connected in series with a resistance of 200ohms and connected to a 5V DC supply voltage. Find the current flowing in the diode at a temperature of 290K? How does the current change when a 800ohm resistance is placed in parallel with the diode?

Homework Equations





The Attempt at a Solution

 
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Well you could start off by providing the equation for current flow I_D in a diode.
 

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