hw9 - Fall 2005 6.012 Microelectronic Devices and Circuits...

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Fall 2005 6.012 Microelectronic Devices and Circuits Prof. J. A. del Alamo Homework #9 - November 18, 2005 Due: November 30, 2005 at recitation 2 PM latest) (late homework will not be accepted) Please write your recitation session time on your problem set solution. 1. [30 points] The figure below shows six possible ways of connecting an npn bipolar transistor that may yield a diode-like behavior. Using the ideal Non-Linear Hybrid- π Model , calculate the I-V characteristics of the two-terminal device in each configuration. Express your result as a function of I S , β F , and β R . A B C D E F V V V V V V I I I I I I Which of these configurations exhibit diode-like I-V characteristics? 2. [20 points] Problem P8.10 of Howe & Sodini. Don’t do (e). Do instead: e) Calculate the maximum amplitude of a sinusoidal signal signal applied to the input so that the output waveform does not clip. What makes the output waveform clip if this maximum signal is exceeded? (

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3. [50 points] I-V characteristics of npn Bipolar Junction Transistor In this problem, you will characterize the current-voltage characteristics of an npn bipolar junction transistor through WebLab. This exercise involves three separate phases: (i)
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• Fall '05
• Prof.JesúsdelAlamo
• Bipolar junction transistor, common-emitter output characteristics

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