4.6. Theoretical Review and Conclusion

Try these first

1. 1.

   What is the primary function of a diode in a circuit?

   Hint

   Think about the directionality in circuits.

2. 2.

   Define cut-in voltage.

   Hint

   What voltage must be exceeded for the diode to turn on?

3. 3.

   What happens to the diode when the input voltage is below the cut-in voltage?

   • True
   • False

   Hint

   Recall the conditions for a diode to turn ON.

4. 4.

   Are diodes characterized by linear I-V characteristics?

   • True
   • False

   Hint

   Think about how current changes with voltage in diodes.

5. 5.

   You have a circuit with a silicon diode and a resistor where the input voltage is 5V. If the cut-in voltage is 0.7V and the resistor is 1k ohm, calculate the output voltage.

   Hint

   Use the concept of Ohm’s law for calculating the voltage drop across the resistor.

6. 6.

   Design a basic rectifier circuit using a diode and explain how it converts AC to DC, including describing the output signal shape.

   Hint

   Visualize how diodes only allow positive voltages to pass through.