17.6 - Transfer Characteristics and Gain
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Practice Questions
Test your understanding with targeted questions
Define gain in the context of MOSFET circuits.
💡 Hint: Think about how we measure the effectiveness of amplification.
What is the saturation region in MOSFET operation?
💡 Hint: Consider what happens when the MOSFET is fully turned on.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does the transfer characteristic curve represent in a MOSFET?
💡 Hint: Think about what each axis of the graph represents.
True or False: The saturation region of a MOSFET is where it behaves like a variable resistor.
💡 Hint: Consider how current flows when the MOSFET is fully on.
1 more question available
Challenge Problems
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A MOSFET has K = 3 mA/V², V_th = 1.5 V, and operates with V_in = 4.5 V. Determine if it operates in saturation or triode when connected to a load of R_D = 1 kΩ. Calculate the gain at this point.
💡 Hint: Check the condition V_DS > V_GS - V_th to verify saturation.
Design a MOSFET amplifier circuit needing an output current of 5 mA at a voltage gain of 10. Given K = 4 mA/V², determine load resistance and the necessary input voltage to achieve the desired performance.
💡 Hint: Use the relationships between gain, current, and resistance to find required values.
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