How should I do to amplify the signal of my PC sound card?

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How should I do to amplify the signal of my PC sound card?

Postby sponee » Mon Feb 06, 2017 10:04 am

Hi everybody,
I am trying to build a high power/current function generator. And I’m using a program called TTG as a function generator using my PC sound card, then I am trying to amplify the signal.

I am using an LM324N found in Kynix, I was successful to amplify the voltage from ~0.01V (my sound card output) to about 1.1VAC (testing sine wave for now), however when I measure short circuit current of the output it’s a mere 40ma.

Am I doing something wrong here? Or do op-amps really give little current? And how should I go about amplifying the signal enough so it can drive... let's say a little ac motor.

Thanks in advance!
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Re: How should I do to amplify the signal of my PC sound car

Postby madtheory » Mon Feb 06, 2017 1:33 pm

Wrong IC, wrong tool entirely. The LM324 is for audio and logic level signals- check out the data sheet. You're looking for VFD (Variable Frequency Drive) technology. So Google that, and check the data sheets.

PS you're probably in the wrong forum as well?
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Re: How should I do to amplify the signal of my PC sound car

Postby Tooom » Fri Nov 03, 2017 11:25 am

I know a website of components,you can find many datasheets of the part, hope it can help you

http://de.findic.com/?lnk=lt
http://ru.findic.com/?lnk=lt
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