5.1.5. Graphical Method

Try these first

1. 1.

   Define a diode.

   Hint

   Think about its directionality.

2. 2.

   What does KCL state?

   Hint

   Remember the flow of electricity.

3. 3.

   What does a diode do in a circuit?

   • Allows current in either direction
   • Allows current in one direction
   • Does not allow current

   Hint

   Consider its use in power supplies.

4. 4.

   True or False: Kirchhoff's laws can be applied only to linear circuits.

   • True
   • False

   Hint

   Think about how we can use these laws universally in circuit theory.

5. 5.

   Given a circuit with a 10V power supply, a 20 kΩ resistor, and a diode characterized by its I-V curve, analyze the circuit using the graphical method to find the output voltage.

   Hint

   Use KCL and KVL to validate results visually.

6. 6.

   Using a diode with a reverse saturation current of 10^-12 A and thermal voltage of 26 mV, perform an iterative analysis to find the operating voltage across the diode for a 5V supply.

   Hint

   Ensure to check how the characteristics shift with each iteration.