psu voltages of x150 x250 and xa30 x60?

[Zen Mod]

each amp is having 4 quadrants of outputs ;

2 quadrants of P type and 2 quadrants of N type mosfets

so it can have 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 ( not going further ) mosfets per quadrant ;

meaning 2 , 4 , 6 ,8 , 10 , 12 , 14 , 16 , 18 , 20 P-N mosfet pairs

meaning 4 , 8 , 12 , 16 , 20 , 24 , 28 , 32 , 36 , 40 mosfets

so - specify what you mean by "10 pairs"

 

[rhythmsandy]

wohaaaaaaaaaaaaaaa! is that per channel? 40 mosfets total per channel?

i was thinking 10p and 10n

 

[rhythmsandy]

so do the power calculations go this way>
1. +/-45v for x250 delivering 250w in 8 ohms 500 in 4ohms

so when a amplifier being bridged at 45v then it has to be stable at 2 ohms so take it 45/2 which is 22.5 amps so 10n and 10p for two quadrants its 2.25amps shared by each mosfet?

so for x1000.5 the voltage is +/-75 so at 2 ohms its 37.5 so for each rail per quadrant there has to be 20n or 20p which will give 1.875amps per mosfet?

so that makes the amp stable even at 4 ohms is it?

 

[qusp]

why must you continue to say 'stable into 2Ω' or 'stable into 4Ω'? The drive ability/current of an amplifier into low impedance loads, has nothing to do with stability. youve been told repeatedly, we know what you mean, but only by reading between the lines.

 

[rhythmsandy]

or the output stage fets gets out of the SOA at full potential isnt it?

 

[qusp]

erm... what has that got to do with stability? I gather you dont understand the term? stability speaks of the feedback loop conditions and ringing/oscillation/phase margin (or lack thereof), not drive power or SOA. Sure a mosfet that is melting is not likely to be very stable as a result, but one term has nothing to do with the other.

have you looked at any of the X type pass labs amps or schematics? I just wonder how (ALL OF) them being inherently bridged was unknown to you. The X in the name stands for a topology, a cross-coupled Balanced-Single ended or 'Super-symmetric' design, made with all N channel (normally) power devices. its so named because of the distinctive X in the schematic/feedback

 

[Zen Mod]

wohaaaaaaaaaaaaaaa! is that per channel? 40 mosfets total per channel?

i was thinking 10p and 10n

I wrote " it can have " , meaning - amp of that concept can have

I didn't wrote how many outputs each of amps in thread's title is having

whatever - info is everywhere ; enough of spoon feeding