Low-Frequency Multiplier

Posted on Sep 9, 2012

This circuit uses a comparator as a Schmitt trigger (311H) and two active bandpass filters (LM318H). 3-kHz output

Low-Frequency Multiplier
Click here to download the full size of the above Circuit.

is obtained. Higher harmonics (preferably odd) can be obtained by tuning the active filters to the desired frequency. can be 1, 3, 5, 7, 9, etc. Even harmonics can be produced by substituting a full-wave rectifier or absolute-value circuit for the Schmitt-trigger comparator.

Leave Comment

characters left:

New Circuits



Popular Circuits

Push-on-push-off electronic switch
12V/1.5A Residential AlarmCircuit
mobile phone battery charger circuit
Three Hour Timer
Most Popular Circuits
150W MP3 Car Amplifier
Fridge Door Alarm Schematic 2nd Version
interfacing relay 8051 keil c
Quadraphonic Amplifier
Three phase torque motor speed control circuit