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-   -   irfz44 (http://www.diyaudio.com/forums/solid-state/53386-irfz44.html)

rodolfo 13th March 2005 03:34 AM

irfz44
 
anybody know how to build an amp with irfz44
low power
tks tks :D

cunningham 13th March 2005 05:33 AM

IRFZ44 is lower voltage high current n-ch. I don't know of any accual p-ch complement. The Rds on is very low and ment to drive very low impeadence switch. It is a hexfet design...not very linear. Of course no transistor is truely linear, this one is not even close. If you biased two in class ab as a push pull transformer coupled or quasi complementary circuit, it might work. As for quality, :confused: . There are better choices of mosfets to use for audio. These are typically used in low voltage hi current smps circuits, like car amp power supplies.

rodolfo 13th March 2005 05:54 AM

tks :bawling:

DG_6MT 16th April 2005 08:43 PM

audio amp using irfz44
 
i know that the xtant 1001dx uses the irf244 transistors (as one blew out on mine not too long ago:dead:) This xtant is a pretty high end, mono channel, class D amplifier. Its fairly large and the board is definetely complex. The amp uses about 13 of these, with some irfz44n's and a few others (not very electically inclined....just learned how to even read a transistor). The amp puts out 1000 watts at 1 ohm and is pretty damn bad*ss....just too bad it broke. Well, i thought id share this info with you as i came across this looking for another irfz44 to replace the one that blew out with. Anyone know a good supplier?

ilimzn 16th April 2005 09:58 PM

IRFZ44 and IRF244 are very different transistors. In fact, you are unlikely to find an IRF244 as they are long out of production...

rodolfo 17th April 2005 04:14 AM

Quote:

Originally posted by cunningham
. There are better choices of mosfets to use for audio. These are typically used in low voltage hi current smps circuits, like car amp power supplies.
ok

I have but of 100 of those thanks
:D

Giaime 17th April 2005 08:13 AM

Quote:

Originally posted by rodolfo


ok

I have but of 100 of those thanks
:D


Build a Class A amp with 20 of them in parallel for each channel :D

quasi 18th April 2005 01:45 AM

Quasi-comp class A
 
Quote:

Originally posted by Giaime



Build a Class A amp with 20 of them in parallel for each channel :D


I agree, you could build a multi-channel medium power quasi-complimentary class A power amp of excellent quality.

Let me know if you want a cct.

Cheers

Stocker 18th April 2005 04:26 AM

Why not just post up a circuit anyhow? Likely as not, it will spark someone's interest.

renjiish 18th April 2005 08:31 AM

you can try pass's zen amplifier.i had done that now past three months i am using that .it is giving excellent sound.


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