signal integrator

matjans · 11th February 2004, 02:30 AM

hello all, i tried searching for this but somehow i just couldn't really find what i was looking for.

i'm hacking together a sub amp mainly for ht uses (from left over parts mainly) but i wan't to try it on my normal audio set aswell. i'm looking for a schematic of a signal integrator. As simple as possible. R+L --> mono sub.

anyone?

Morse · 11th February 2004, 02:48 AM

Hi Matjans;

Take a look at this circuit: http://sound.westhost.com/project18.htm

It looks like all you'd really need is a pair of 100kr resistors, a single TL072 with a potentiometer and some caps to buffer the source from the load. I'm considering trying it out myself, so let me know how it works if you try it!

All the best,
Morse

jackinnj · 11th February 2004, 12:05 PM

an integrator is actually a capacitor in the feedback loop. you want a "summer"

National Semi Application Note 31 has a wealth of simple circuits like this.

11th February 2004, 02:30 AM	#1
matjans diyAudio Member Join Date: Aug 2003 Location: Utrecht, NL	signal integrator hello all, i tried searching for this but somehow i just couldn't really find what i was looking for. i'm hacking together a sub amp mainly for ht uses (from left over parts mainly) but i wan't to try it on my normal audio set aswell. i'm looking for a schematic of a signal integrator. As simple as possible. R+L --> mono sub. anyone?

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11th February 2004, 02:48 AM	#2
Morse diyAudio Member Join Date: Jan 2003 Location: US for now.....	Hi Matjans; Take a look at this circuit: http://sound.westhost.com/project18.htm It looks like all you'd really need is a pair of 100kr resistors, a single TL072 with a potentiometer and some caps to buffer the source from the load. I'm considering trying it out myself, so let me know how it works if you try it! All the best, Morse

11th February 2004, 12:05 PM	#3
jackinnj diyAudio Member Join Date: Apr 2002 Location: Llanddewi Brefi, NJ	an integrator is actually a capacitor in the feedback loop. you want a "summer" National Semi Application Note 31 has a wealth of simple circuits like this.