This project is focused on the design and simulation of a multi-stage amplifier using BJT (Bipolar Junction Transistor) circuits. The amplifier consists of three stages:
- Two Common-Emitter (CE) stages
- One Common-Collector (CC) stage
The goal was to achieve a mid-band gain of 38-42 dB, with specific frequency cut-off requirements. The design was simulated using LTSpice to validate its theoretical performance.
Why was it created?- To study multi-stage amplifier design and the operation of BJTs.
- To analyze the impact of various transistor configurations on gain and frequency response.
- To practice using simulation tools like LTSpice to verify circuit performance.
DC Analysis
- Operating points for each transistor stage were calculated to ensure proper biasing.
AC Analysis
- The small signal model was used to determine the frequency response and gain of the amplifier.
Simulation & Results
- The amplifier design was tested under different operating conditions using LTSpice.
- Simulation results confirmed that the amplifier met the required mid-band gain and cut-off frequencies.
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Final-year Computer Engineering student at APU with a focus on software development and robotics.
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