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6 Threads found on edaboard.com: Design 1st Order Low Pass Filter
I want to create an optimized band-pass filter using two op-amp uA741. My required band is 85-115KHz with carrier frequency 100kHz. This design will be a part of Frequency division demultiplexer. It's very necessary to optimize the design for recovering an original message signal. In schematic (using orcad pspice 9.2) i have (...)
hey, recently i am designing an active filter circuit. but i meet with a problem. as u can see the pic, the fliter chip is from the national semiconductor. well, the focus is the calculation. i know how to calculate two fo them: Fo=1/2*3.14*R1*C1 Av=1+R3/R4 But how to calculate the
You may add a cap in parallel with R to form a 1st order low pass filter. Your opamp usually has requirements on voltage supply. So using supply as limiters is not a good solution. low price resistors, capacitors, and LEDs: FVM, Would you let me know how to (...)
Hey guys. Hope everyone is doing great. I'm supposed to design a 3rd order Butterworth low-pass filter and so I combined 1st order and 2nd order Butterworth low-pass. That's what I need to do right? And so I did but (...)
hi, how to write matlab code for RC 1st order low pass filter?? i saw many matlab codes from internet , like butterworth, chebychev... but don't have the one for RC low pass filter?? pls advice how to do it? i was stuck in RC filter (...)
use "filter Wiz Pro" for your design.