Hi Toni,what are fet that used here,240/9240 or these expensive and difficult to find IXTH80N20L fets?
The used MOSFETs are IXTH80N20L and IXTH48P20P. A single IRFP240/9240 pair wouldn't survive rail voltages +/-50V with such power levels (200W@4R continuous) ...
In principle you can use the pcb also for IRFP240/9240 devices but at a much lower output power /lower rail voltages ...
The compensation may need a redesign.
The SOA protection always need to be redesigned. When I find time I can assemble a pcb using IRFP240/9240 only.
BR, Toni
In principle you can use the pcb also for IRFP240/9240 devices but at a much lower output power /lower rail voltages ...
The compensation may need a redesign.
The SOA protection always need to be redesigned. When I find time I can assemble a pcb using IRFP240/9240 only.
BR, Toni
Hi Toni.
I would like you to design a printed version of the transistor 12 pairs.
I want to get more power and durability.
It will start as you detail it.
Thank you.
winate
I would like you to design a printed version of the transistor 12 pairs.
I want to get more power and durability.
It will start as you detail it.
Thank you.
winate
SA2018 ultra fidelity monster amp
SA2018 - something like this?
Simulation results: 420W@8R (+/- 90V rails, 100mA bias per pair, 1.2A bias total, slew rate 100V/us)
Have fun, Toni
SA2018 - something like this?
Simulation results: 420W@8R (+/- 90V rails, 100mA bias per pair, 1.2A bias total, slew rate 100V/us)
Have fun, Toni
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SA2015 4 channel VMOS
^^^ You meant "wow. it's great to have that"?
... all 4 power amp modules tested (working all out of the box) and mounted on heatsinks.
Next steps:
Toni
^^^ You meant "wow. it's great to have that"?
... all 4 power amp modules tested (working all out of the box) and mounted on heatsinks.
Next steps:
- soldering housekeeping circuits
- cabling
Toni
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Touching the perfection!!!🙂
Waiting for the cabling,i want to see how you manage all the cables.😉
Waiting for the cabling,i want to see how you manage all the cables.😉
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SA2018 - 12 pair MOSFET monster will need more research (e.g.: SOA checks; many more hours of simulation and tests). Currently I have a limited amount of spare time so you need to wait a few weeks ...
Stay tuned. I definitely will build a prototype if I find time.
BR, Toni
Stay tuned. I definitely will build a prototype if I find time.
BR, Toni
2571 is a work of art!
(Something wrong with first image in 2561? Thumbnail ok but I get garbage when I click on it.)
(Something wrong with first image in 2561? Thumbnail ok but I get garbage when I click on it.)
Ah you didn't try the SMD version... 🙁
Strange, I still have a problem with that first image. Maybe my browser has cached a corrupted version or something. Not a big deal.
Strange, I still have a problem with that first image. Maybe my browser has cached a corrupted version or something. Not a big deal.