17.5.1. I-V Characteristics

Try these first

1. 1.

   What is meant by the I-V characteristics in MOSFETs?

   Hint

   Think about how you can visualize current vs voltage.

2. 2.

   What happens in the triode region for a MOSFET?

   Hint

   Consider the difference from the saturation region.

3. 3.

   What is the primary reason for analyzing I-V characteristics in MOSFETs?

   • To measure resistance
   • To determine current and voltage relationships
   • To find capacitance

   Hint

   Think about what characteristics define electronic behavior.

4. 4.

   True or False: The MOSFET operates in triode when the output voltage is significantly lower than the gate voltage.

   • True
   • False

   Hint

   Consider how the MOSFET behaves with varying outputs.

5. 5.

   If a MOSFET has a K value of 4 mA/V² and V_th of 1.5 V, and you apply V_dd of 12 V, determine if the circuit remains in saturation with a load resistor of 2.2 kΩ.

   Hint

   Analyze the equations to find the intersection points.

6. 6.

   How would a sizable increase in load resistance affect the gain of a MOSFET amplifier circuit? Illustrate with numerical examples if necessary.

   Hint

   Consider both equations for gain and how they interlink.