Hi Pafi
Yes, it arrived and it's working fine. Thankyou very much. See...
Yes, it arrived and it's working fine. Thankyou very much. See...
An externally hosted image should be here but it was not working when we last tested it.
Hello all,
just a quick question.. Is it really a big difference USING air gapped ferrites than iron powder ring??
I have lots of iron powder (colored RED,black,yellow,blue) from many dead PC PS...
AND i got ONLY 1 "ferrite material" E-E core from an epson printer PS..... would this help?
http://i6.photobucket.com/albums/y209/beamrx5/IMG_0020.jpg
http://i6.photobucket.com/albums/y209/beamrx5/IMG_0019.jpg
http://i6.photobucket.com/albums/y209/beamrx5/IMG_0018.jpg
just a quick question.. Is it really a big difference USING air gapped ferrites than iron powder ring??
I have lots of iron powder (colored RED,black,yellow,blue) from many dead PC PS...
AND i got ONLY 1 "ferrite material" E-E core from an epson printer PS..... would this help?
http://i6.photobucket.com/albums/y209/beamrx5/IMG_0020.jpg
http://i6.photobucket.com/albums/y209/beamrx5/IMG_0019.jpg
http://i6.photobucket.com/albums/y209/beamrx5/IMG_0018.jpg
Eh? I think you got it backwards. First figure out the specs you need such as frequency range, loss factor, etc., then choose a core depending on that. A comparison of the most common ferrite and powder cores can be seen for example here:
http://home.woh.rr.com/n8ie/coreinfo.htm
http://home.woh.rr.com/n8ie/coreinfo.htm
I did this circuit.I obtained high difficult from circuit does,but there is one problem;a little parasite and noise.I didn't use feedback and level shifters.levelshifter in IR2113 anyway
I am waiting for your answer
Sorry my english.
I am waiting for your answer
Sorry my english.
An externally hosted image should be here but it was not working when we last tested it.
Leddie, the sound is very good, so good that i have to test the amp on some better speakers than my old ones i had to rebuild that i use as computer speakers. The thing runs on 37 volts for now, which all the others could not do without burning up.
What about you, built your circuit yet ?
What about you, built your circuit yet ?
Tekko said:Make a 0.5ohm subwoofer so you can run the amp directly on 12v
That is exactly I'm trying to do. I'm going to use dual voice coil with few number of turns but more thicker wire to handle more currents.
Exactly yes. There are plenty of subwoofer parts here like cones,baskets, including voice coils, but I prefer to wind it by myself because of the impedance that I need is too low and I dont like to use several subs in parallel due to space issue and cost.
No, I dont have MSN.
No, I dont have MSN.
classd4sure said:Hi Tekko,
I built you circuit this afternoon, the mosfets melted into my breadboard and it caught fire. I don't know what's wrong with it, have more mosfets but no more breadboards. Now I see why you're using a PCB for prototyping. A jamaican told me it was because my air coils are EMI infernos. What core should I use?
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