Electronics > Beginners
calculate low pass
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Mepakos:
Can u help me pls? Dont know if i am right or wrong.
ledtester:
Um, your first mistake is here:



ledtester:
Another thing you have to be more careful about are the signs on your exponents:



It should be 10^-6. This doesn't cause a problem since you make the same mistake later on and the two cancel each other out.

GerryR:
You don't need to consider the source impedance (50  \$\Omega\$) in your calculation.  You handle the lo-pass as a regular voltage-divider network to find the "pole."  Try looking up Bode Plots to find how to find your poles and zeroes and phase for different networks.
ledtester:

--- Quote from: GerryR on September 11, 2019, 12:00:32 pm --- Try looking up Bode Plots to find how to find your poles and zeroes and phase for different networks.

--- End quote ---

Like this:

http://sim.okawa-denshi.jp/en/CRlowkeisan.htm
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