lm324 wave generator vco schematic


Posted on Feb 4, 2014

A vco using the LM324. I have the schematic to the korg monotron, which uses the lm324 as the IC for the vco, but I am struggling to create a simple circuit in which the lm324 will produce an audible wave form when connected to a speaker. can anyone help from what i have gathered this should produce a square wave correct An LM324, by itself, is not a VCO; you have to add the JFet to


lm324 wave generator vco schematic
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make a VCO. An LM324, by itself, cannot drive a speaker; you will need an audio power amplifier, like an LM386 to do that. I`m not sure if this is what you want, but it will produce a square wave and triangle wave. Change the frequency by changing C1 or R4. AC couple it with a large capacitor to your audio amplifier. An LM324, by itself, is not a VCO; you have to add the JFet to make a VCO. An LM324, by itself, cannot drive a speaker; you will need an audio power amplifier, like an LM386 to do that. Its what is used in that little Korg Monotron synthesizer, which is why i purchased the chips. I am trying to figure out how to create an oscillator with it without using a 386 audio amp if thats possible I know it can be done with a 40106 but can it be done with the LM324 audioguru thanks for that link. A CD40106 IC can make six square-wave oscillators with just one resistor and one capacitor for each oscillator. An opamp can make the same oscillator but with an added resistor. If you want to drive a speaker then you need a power amplifier. An LM386 has a low output power of only 0. 45W at clipping into 8 ohms when it has a 9V supply. im breadboarding this right now, thank you everyone for your help, im teaching myself about circuit building and am a noob, thanks for answering my stupid questions. Although I can generate a square wave with the lm324 and with a bit of luck a triangle wave as well, and adjust the rate in which...




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