6.2. Practical Method for Non-Linear Circuit Analysis

Try these first

1. 1.

   What voltage drop is typically assumed for a silicon diode in the on-state?

   Hint

   Think of the standard diode characteristics.

2. 2.

   In what condition is the diode modeled as having high resistance?

   Hint

   Consider when the diode is not conducting.

3. 3.

   What is the typical cutting voltage for a silicon diode?

   • 0.2V
   • 0.6V
   • 0.8V

   Hint

   Consider the standard characteristics of silicon diodes.

4. 4.

   True or False: The off-condition of a diode is characterized by very low resistance.

   • True
   • False

   Hint

   Think about what happens to current flow in this state.

5. 5.

   Calculate the current through a diode with a 10KΩ resistor and a forward voltage of 0.7V. Use the piecewise linear model to analyze the circuit.

   Hint

   Use V across the resistor to determine the current.

6. 6.

   Design a circuit that uses a diode with a varying input voltage and determine how output changes as input crosses the cutting voltage.

   Hint

   Sketch diagrams during the analysis for clarity.