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Design a differentiator to differentiate the input signal that varies in frequency from 10Hz to 1KHz.
written 7.9 years ago by gravatar for teamques10 teamques10 ★ 65k •   modified 4.0 years ago
linear integrated circuits
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written 7.9 years ago by gravatar for teamques10 teamques10 ★ 65k •   modified 7.9 years ago

Step 1 :

Choose $f_a$ equal to the highest frequency of the input signal. In this case $f_a$ = 1KHz $$f_a = \frac{1}{2πR_FC_1}$$ Let $C_1$ = 0.1μf $$1KHz = \frac{1}{2πR _F×0.1µf}$$ $$R_F = 1.59KΩ$$

Step 2 :

Choose $f_b$ = 10 $f_a$ $$f_b = 10K = \frac{1}{2πR_1C_1}$$ $$10K = \frac{1}{2πR_1×0.1µf}$$ …

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