Schematic | Circuit guide | Manual Wiring diagram | Electronic
Showing posts with label pass. Show all posts
Showing posts with label pass. Show all posts

Active High Pass Filter Using LM741

Posted by Unknown Saturday, September 28, 2013 0 comments

Circuit Diagram:

active-hig -pass-filter-circuit-using-lm741 Active High Pass Filter Circuit Diagram

This is active high pass filter circuit for 327Hz frequency using LM741. It will use to build Harmonic at 3 of 130.81 frequency have the value at least. More than the frequency Fundamental 30 dB, for output be sawtooth wave form for use in sound of music way system Electronic design will use the circuit filters three rank frequency. By have 3 dB you slopes can use Op-amp IC number LM741 or number LF351it will meet the frequency well.

Source: ElecCircuit

Build a Variable Frequency Audio Band pass Filter Circuit Diagram

Posted by Unknown Wednesday, August 14, 2013 0 comments
This variable-frequency, audio bandpass filter is built around two 741 op amps that are connected in cascade. Two 741 op amps are configured as identical RC active filters and are connected in cascade for better selectivity. The filter`s tuning range is from 500~Hz to 1500 Hz. The overall voltage gain is slightly greater than 1 and the filter`s is about 5, The circuit can handle input signals of 4 V peak-to-peak without being overdriven. The circuit`s input impedance is over 200 kohm and its output impedance is less than 1 kohm

Variable-Frequency Audio Bandpass Filter Circuit Diagram

Variable-Frequency Audio Bp Filter Circuit Diagram