Practice - V-I Characteristics: Output Resistance and Minimum Sustainable Voltage (V_ON)
Practice Questions
Test your understanding with targeted questions
What does V_ON represent in a current mirror?
💡 Hint: Think about the minimum voltage needed to maintain current flow.
What is the Early effect?
💡 Hint: It relates to changes in the effective base width.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the purpose of the minimum sustainable voltage (V_ON) in a current mirror?
💡 Hint: Think about what happens if the voltage drops too low.
True or False: The output current in BJTs remains constant as the output voltage increases.
💡 Hint: Recall the specific effects on BJT characteristics.
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Challenge Problems
Push your limits with advanced challenges
Design a current mirror circuit ensuring a V_ON of at least 1V while maintaining an output current of 10mA. What would be the minimum supply voltage required?
💡 Hint: Consider the operation of the current mirror and its output characteristics.
A BJT current mirror shows an output current of 5mA when the output voltage is 0.5V. If the output resistance is found to be 1k Ohm, what will be the output current at 1V?
💡 Hint: Apply the knowledge of how output current varies with voltage in BJTs.
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Reference links
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