1. In this project you will design a discrete transistor amplifier circuit. The
ID: 2292228 • Letter: 1
Question
1. In this project you will design a discrete transistor amplifier circuit. The amplifier gain has to be approximately 0.95 (buffer) and the amplifier input resistance has to be approximately 10 MQ. An external load with a resistance of 5 K2 is connected at the output of the amplifier. The input ac source has a 10 k2 series resistance and a doc source of up to 25 V is available a. Explain your choice of the amplifier topology b. Describe in detail your amplifier circuit design. What is the output resistance of the amplifier? c. Verify your design by LTSpice simulation. d. Show results of the dc operating point analysis. What is dc bias current and voltage (operating point) of the transistor? e. Show results of the transient analysis. What is the gain of the circuit? f. Run an ac analysis and plot the gain of the amplifier versus frequency in the range of 1 Hz to 100 MHz. What is the bandwidth of the circuit?Explanation / Answer
a. Common collector topology can be chosen as the input resistance is given as 10Mohm and gain is about 0.95
b. Output resistance = Rs Source resistance/(Beta gain+1) = 10K/(0.95+1) = 5.128K
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.