4.3. Analysis of Non-linear Circuit

Try these first

1. 1.

   What is a non-linear circuit?

   Hint

   Consider components like diodes.

2. 2.

   Define the cut-in voltage.

   Hint

   Think about voltage thresholds.

3. 3.

   What happens to the current through a diode when the voltage exceeds the cut-in voltage?

   • The current decreases
   • The current remains constant
   • The current increases rapidly

   Hint

   Refer to the I-V characteristics of a diode.

4. 4.

   True or False: In reverse bias, a diode will allow current to flow.

   • True
   • False

   Hint

   Think about the diode structure and operation.

5. 5.

   Given the I-V characteristics of a silicon diode, calculate the output voltage across the diode when the input voltage is 1.5V and the forward current approaches the cut-in voltage.

   Hint

   Don't forget to consider the diode's I-V characteristics.

6. 6.

   In a circuit with a diode and resistor, how does the output voltage change when a small AC signal is superimposed on a DC bias? Explain your reasoning.

   Hint

   Think about the performance of the diode in both AC and DC conditions.