The circuit in Figure P9.58 is used to drive an LED with a voltage source. The circuit

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The circuit in Figure P9.58 is used to drive an LED with a voltage source. The circuit can also be thought of as a current amplifier in that, with the proper design, $i_{D}>i_{1}$.

(a) Derive the expression for $i_{D}$ in terms of $i_{1}$ and the resistors.

(b) Design the circuit such that $i_{D}=12 \mathrm{~mA}$ and $i_{1}=1 \mathrm{~mA}$ for $v_{I}=5 \mathrm{~V}$.

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Microelectronics Circuit Analysis And Design

ISBN: 9780071289474

4th Edition

Authors: Donald A. Neamen

Question Posted: May 07, 2024 04:00 AM

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The circuit in Figure P9.58 is used to drive an LED with a voltage source. The circuit

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R jo ww Figure P9.58 RF ww R Light

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Microelectronics Circuit Analysis And Design

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