Bode plot for instrumentation amplifier

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Sita
Sita 2023-1-17
回答： Joel 2023-3-29
How do I make a bode plot (both gain & phase) using matlab for the following instrumentation amplifier if assumed that amplifier has bandwidth of 20 kHz with a typical first order response.
Secondly, if a sine wave of frequency applied is 40 kHz with amplitude of 1000 and average value of 500, what would be the measured frequency, amplitude, dc offset of Vout, and phase delay.

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回答（1 个）

Joel
Joel 2023-3-29
Hi,
Generally, you can do this by extracting a transfer function from Simulink circuit. Once you obtain a transfer function, you can use the bode function to obtain a bode plot. Refer to the following links:
Extracting Transfer function from Simulink: Transfer Function of a simple Circuit using Simulink - MATLAB Answers - MATLAB Central (mathworks.com)
Bode documentation: Bode plot of frequency response, or magnitude and phase data - MATLAB bode - MathWorks India
Hope this solves your query.

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