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Posts tagged transfer-function

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Q&A Effect of adding stages to a filter

Suppose we have a RC low pass filter of 1st order. If we add multiple stages every time we add a RC stage identical to our original does the slope of the curve in the bode plot db/Hz becomes wild...

2 answers  ·  posted 5mo ago by MissMulan‭  ·  last activity 2mo ago by a concerned citizen‭

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Q&A Design high -pass filter with 2 points of the bode plot

Im designing a high-pass filter which has a gain of -8dB at half of the roll-off frequency and I am stuck ,I dont know how to continue the design. In the bode plot of that filter we have 2 points:...

3 answers  ·  posted 5mo ago by MissMulan‭  ·  last activity 3mo ago by LvW‭

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Q&A Results of analysis of Hartley oscillator dont make sense

I want to find the conditions of oscillation of the following Hartley oscillator.I have attached a load (ZL) to my Hartley oscillator I have written KCL for nodes A,B: For node A: $$\frac{V_{A...

3 answers  ·  posted 5mo ago by MissMulan‭  ·  last activity 4mo ago by TonyStewart‭

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Q&A Band pass filter given cutoff frequency and bandwidth

I have decided to try design a band-pass filter with a cut-off frequency of 10kHz and bandwidth of 2 Hz. $$ \frac{1}{\sqrt{LC}} = 10001 \rightarrow LC = 1/100020001 sec^{2}$$ $$ \frac{R}{L} = 2...

2 answers  ·  posted 5mo ago by MissMulan‭  ·  edited 5mo ago by MissMulan‭

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Q&A How to design a low-pass filter when certain conditions must be met

I am designing a low-pass filter with cut-off frequency = 100Hz and after the cutoff frequency from -3dB to -10dB the average decrease in db/Hz = -0.1 db/Hz.I know how to design a low-pass filter ...

2 answers  ·  posted 5mo ago by MissMulan‭  ·  edited 5mo ago by MissMulan‭

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Q&A Cutoff frequency of single phase transmission line

Signals with frequency above the cutoff frequency of a transmission line cannot be transmitted through the transmission line. But how can I calculate the cutoff frequency of a single phase transm...

0 answers  ·  posted 5mo ago by MissMulan‭  ·  reopened 5mo ago by Olin Lathrop‭