EE 201 Circuits G. Tuttle

Diodes practice problems
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Read the diode class notes.


For the circuit shown,

  • R = 83.9 Ω
  • VS = 7 V

The saturation current parameter for the diode is IS = 1.0e-13 A.

Using the exact diode equation, find the value of R so that the diode current will be iD = 75 mA. (Do not use the on-off model for the diode.).

Assume room temperature operation. (kT/q = 0.0258 V).

Answer