Comments on: MOSFET Power Amplifier 5200W IRFP250

By: Alain

Alain — Fri, 07 Oct 2022 14:29:50 +0000

Ça fait plus de 10 ans que je monte les amplificateursmais depuis une semaine que je travaille sur celle-ci je n’ai pas de bons résultats

By: Razalo Philemon

Razalo Philemon — Thu, 25 Nov 2021 14:30:09 +0000

You did your, the rest are ours worry not

By: CRIVOI VASILE

CRIVOI VASILE — Sun, 20 Jun 2021 17:28:57 +0000

FAILL…NO GOOD !!!!!!!

By: Oswaldo da Cunha

Oswaldo da Cunha — Thu, 20 May 2021 20:00:04 +0000

HI EVERYBODY – I assembled this circuit exactly as depicted but ,for safety ,with only one pair off IRFP250 and 90V . The 100R resistor got so hot that its solder just melted and one off the IRFP250 smoked ! So, has anyone have effectively mounted it and has further information ? I am up to quite . Obs .My site is presently out of air

By: alex

alex — Mon, 17 May 2021 11:30:15 +0000

In this confuguration it is asssumed all MOSFETS having exactly the same data.
That would be an ideal electronic world, bad luck it isnt.
here there will be some MOSFETS getting extremely hot and destroying themselfes in the end,
while their neighbour MOSFET stays cold, its just a matter of difference in bias.
I advice for every MOSFET having its own bias-circuit, to adjust when they will be conducting.
In the diagram presented here its impossible having each MOSFET having the same drain-current.
And even than, its liked driving a 20 wheels truck on an unequal road……
Cheers,
Alex.
Delft University.

By: Stanley

Stanley — Wed, 29 Apr 2020 18:54:48 +0000

In reply to pranjal sarma. Can you send me the pcb and layout to my email

By: jorge

jorge — Mon, 02 Dec 2019 06:09:17 +0000

In reply to Anil pandey. encontre el pdf del pcb pero este ocupa 56 mosfet si lo deseas te lo paso

By: Anil pandey

Anil pandey — Fri, 15 Nov 2019 11:18:23 +0000

In reply to bwana amplifier. Pcb layout pdf full

By: ssewava

ssewava — Fri, 08 Nov 2019 17:09:52 +0000

why mje 50 and irf 820 gets hot with in 5m

By: Raja Mohammad

Raja Mohammad — Wed, 23 Oct 2019 21:30:49 +0000

Please send pcb layout, fidaraja9956@yahoo.com