Hi,
where did this schematic come from?
Why 1n4007 diodes when the worst case reverse voltage must be <=1V?
300uA passing each of the LTP inputs seems a bit low.
Are the VAS transistors upside down?
Are the 340/350 suitable for VAS duty?
Why 10r for the lower driver emitter?
MJE15030/31 is the type code.
Change the bias pot so that failure/intermittent wiper does not over bias the output stage.
Add Zener protection to the output Gates.
Why do the monitoring side of the CCSs require ~8mA and the VAS only 2mA?
Where are the output source resistors?
Who is still claiming 1200W into 4r0? This needs 98Vpk and 24.5Apk into a resistive load. Where does this ability come from? and somewhere around 70Apk into a reactive speaker load!
Someone did not think about this.
where did this schematic come from?
Why 1n4007 diodes when the worst case reverse voltage must be <=1V?
300uA passing each of the LTP inputs seems a bit low.
Are the VAS transistors upside down?
Are the 340/350 suitable for VAS duty?
Why 10r for the lower driver emitter?
MJE15030/31 is the type code.
Change the bias pot so that failure/intermittent wiper does not over bias the output stage.
Add Zener protection to the output Gates.
Why do the monitoring side of the CCSs require ~8mA and the VAS only 2mA?
Where are the output source resistors?
Who is still claiming 1200W into 4r0? This needs 98Vpk and 24.5Apk into a resistive load. Where does this ability come from? and somewhere around 70Apk into a reactive speaker load!
Someone did not think about this.
There is a thread running here, as I stated before, regarding THIS schematic.
Anthony Holton is quite 'mad' because of that.
This is the origin of all this thread: http://www.lateralmosfet.com/Lateral Mosfet Datasheet.pdf
Same schematic...
I don't know if it is exactly the one Anthony Holton uses.
If it is, it must work, with LFets... Not VFets...
Sure, netuddki is playing around with some 'addons' to the original schematic.
For sure, with those IRFP90N20/P20 this will not work...
Neither will give 1200W...
BTW, why that 'bias' transistor?
Anthony Holton is quite 'mad' because of that.
This is the origin of all this thread: http://www.lateralmosfet.com/Lateral Mosfet Datasheet.pdf
Same schematic...
I don't know if it is exactly the one Anthony Holton uses.
If it is, it must work, with LFets... Not VFets...
Sure, netuddki is playing around with some 'addons' to the original schematic.
For sure, with those IRFP90N20/P20 this will not work...
Neither will give 1200W...
BTW, why that 'bias' transistor?
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