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2 cards from this section. Quick, good the night before a test.
What happens to the current flowing through a diode when the voltage is less than the cut-in voltage?
Think of the diode as a gate that is closed.
What is the purpose of the reverse saturation current in the context of diodes?
Recall the definition of reverse saturation current.
What reflects the I-V characteristics of a diode?
Consider how current behaves as voltage increases.
When the diode is OFF, what is the output voltage?
Think about the state of the diode and its effect on the voltage.
In a circuit with a silicon diode, calculate the output voltage when the input voltage is 1.5V given that the cut-in voltage is 0.7V and the series resistor is 1kΩ.
Don't forget to consider the on-resistance and how it affects the voltage drop.
Design a diode clipping circuit using a 1N4148 diode that clips the negative portion of an input sine wave of amplitude 1V. Determine the conditions for successful operation.
Ensure your DC bias accounts for the clipping behavior above the cut-in voltage.
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