citation 12 irf 130

[ricrado]

Can you change irf 130 for irf 240 on citation 12 original article.?
What I have to do in the schematic.
I am having problem getting the irf 130 her in mi country.
thanks

Ricardo

just trying.......

 

[Tekko]

Sure you can! I used IRF3205 in my build, worked just fine. Though lateral mosfets may be better than hexfets.

 

[Nelson Pass]

Laterals will have less bias drift with temp, but generally
more distortion (lower transconductance).

Either is worth a try.

 

[Tekko]

I am trying laterals, ordered a few from those class-d.com doodz making those class b modules.

Datasheet: http://jm.plantefeve.pagesperso-orange.fr/acd100nsd.pdf

At 3GBP a piece their among the cheapest laterals on the market.

I'm also planning to add current sources to the input and VAS stage, but more of that in my thread.

 

[tiefbassuebertr]

Laterals will have less bias drift with temp, but generally
more distortion (lower transconductance).

Either is worth a try.

Both design's from same brand ??
Magnatec. ALFET Lateral MOSFETs
TT electronics Semelab Limited - Magnatec Datasheets
TT electronics Semelab Limited - Magnatec Lateral MOSFET Pricing

Where are the P-spice parameters (I don't get reply from Magnatec) ??

 

[Tekko]

My laterals arrived today!! I wonder why they have switchecd places on Drain and Source as compared to any other mosfet like IRFP450 and such.

 

[Nelson Pass]

Different physical structure of the chip make the case want
to be the Source.

 

[tiefbassuebertr]

about this thread I have make an overview arround lateral MOSFET's (vintage and currently available):
http://www.diyaudio.com/forums/soli...l-mosfets-class-ab-overview-p-spice-urls.html
highest level p-spice parameter highly appreciated

 

[ricrado]

irf240

can it be irf 240 in standard way .similar to what cittation 12 have already in form.?

 

[Tekko]

I used IRFP450 in my citation 12 which worked beautifully, i used 560ohm gate resistors, with the laterals i haad to increase the gate resistors to 2.2k to get rid of the oscillation.