ST MOSFET-Power Amplifier use??? - diyAudio
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Old 3rd November 2006, 05:18 PM   #1
zox2003 is offline zox2003  United States
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Arrow ST MOSFET-Power Amplifier use???

Hi,

I asked this question before but nobody was able to answer it straight and 100%.Let me try again:

I have 30 pieces of ST 60N10 MOSFET (200 W).Here is a data sheet (please read-pdf):

http://www.st.com/stonline/books/pdf/docs/3105.pdf

Can we use this MOSFET to build PA Amplifier?
What schematic should I use to build one(post it please)?
How much power should we expect from one pair of these 200W MOSFETS on +/-42V and 4 ohms?

Thanks everybody for help.

Best Regards
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Old 3rd November 2006, 05:22 PM   #2
zox2003 is offline zox2003  United States
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Default Please answers???

Any Ideas???
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Old 3rd November 2006, 05:33 PM   #3
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with +/- 42Vcc supply on 4 Ohms you can obtain around 200W
For complementary output you need also P-type channel MOSFET.
Some schematics to be found at this very good site http://sound.westhost.com/projects-1.htm...

to see also the schematics on this thread [DIY] HEXFET AMP total disaster?

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Old 3rd November 2006, 05:37 PM   #4
zox2003 is offline zox2003  United States
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I would like to use just N-channel MOSFET's in quasi design.
Did you check data sheet?You think that this MOSFET would provide nice sounding amp?

So.one pair would be able to handle 200 W of power on +/-42V?

Thanks
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Old 3rd November 2006, 05:49 PM   #5
lineup is offline lineup  Sweden
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hi

Quote:
APPLICATIONS
n HIGH CURRENT, HIGH SPEED SWITCHING
n SOLENOID AND RELAY DRIVERS
n REGULATORS
n DC-DC & DC-AC CONVERTERS
n MOTOR CONTROL, AUDIO AMPLIFIERS
n AUTOMOTIVE ENVIRONMENT (INJECTION,
ABS, AIR-BAG, LAMPDRIVERS, Etc.)
Quote:
200 Watt TO-247 version, some DATA:

Max Voltage Drain source: 100 V
Max 60 Ampere
0.75 C/W cooling factor
RDSon 0.02 Ohm
Ciss, input capacitance: Typ 4000pF Max 5000pF
.
Yes,
they could be used,
if using proper drivers or VAS stage working at a bit higher current.
Because of the very high input capacitance these beast are not as easy to drive.

Normal for IRFxxx is like 1000 and max ~2000pF Ciss.
And lateral MOSFETs like 2SK1058 can have as good low Ciss value as 600pF
This makes these very easy to drive
and sometimes a VAS stage only at 10-20 mA can drive them directly.

But, again
in the correct supporting amplifier circuit
they would work, especially when need to put out LARGE CURRENTS
= low impedance speakers and high powers.

However,
you cant use them with higher voltage suppy than 2 x 50 Volt.
This would limit max output power a lot into 8 Ohm.

Such an amplifier would be more suitable for 2-4 Ohm speakers.
Or if paralleling 4//4 Ohm (Sub-)Woofers.
When they would be able to give Large Currents to load.


lineup
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Old 3rd November 2006, 05:54 PM   #6
zox2003 is offline zox2003  United States
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Can you guys post schematic that would have VAS implemented to drive these monsters?

Thanks
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Old 3rd November 2006, 05:57 PM   #7
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IRF540 : Id max 28A, Vdss 100V, Pt 150W RDS 0.07
STH60N10 : Id max 60A, Vdss 100V Pt 200W RDS 0.025

you can replace with your STH60N10 the IRF540
on the schematics placed in this therad [DIY] HEXFET AMP total disaster?
however it can adjust some value for supply at 42Vcc

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Old 3rd November 2006, 05:58 PM   #8
zox2003 is offline zox2003  United States
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Would "Citation" amplifier be right choice to use these?

Citation schematic:

http://www.passdiy.com/pdf/citation.pdf
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Old 3rd November 2006, 06:07 PM   #9
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Yes IRF130 can be replaced with STH60N10
(IRF130 Vds=100V, Id=14A, Pt =75W, RDS 0.18 )
but you need also replace the P-channel IRF9130
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Old 3rd November 2006, 06:08 PM   #10
zox2003 is offline zox2003  United States
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Or maybe tis schematic.IS this will be OK to run these transistors:
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