11.2.4 - Condition for Validity of the Equation
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Practice Questions
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What does I_DS represent in a MOSFET?
💡 Hint: Think about the direction of current in the device.
What is the threshold voltage (V_th)?
💡 Hint: Consider the term 'threshold' as a limit to be exceeded.
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Interactive Quizzes
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What condition must V_DS satisfy for the original current equation to be valid?
💡 Hint: Think about how the channel must operate for proper behavior.
True or False: The current I_DS is zero when V_GS is less than V_th.
💡 Hint: Consider what it means to create a conducting channel.
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Challenge Problems
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Derive the effect of channel length modulation on the overall current in a MOSFET.
💡 Hint: Analyze the relationship between V_DS and channel length as it changes.
Given a MOSFET with specific values for W, L, V_GS, and V_th, calculate I_DS under both triode and saturation conditions.
💡 Hint: Ensure to identify when the MOSFET switches from triode to saturation.
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