Successful TPU-ECD replication !

[winsonali]

wattsup:

i want to be a member of your Mosfet Haters Club

[wattsup]

@winsonali

Actually anyone working on overunity systems is an automatic member because it is part of the natural or normal process of discovery. lol

The process is pretty simple.

1) Blow mosfet
2) Find out why it blew by blowing a few more.
3) Make the necessary changes. Ah it works.
4) Then make an undocumented change that blows some more mosfets.
5) Repeat 2, 3 and 4 indefinitely.

I think I should write a book entitled "1001 ways to blow a mosfet", describing the many ways they blow, including - The Pop, The Fizz, The Fry, The Wiggle and more. Half of all proceeds will go the National Wounded Mosfet Clinics Burn Ward and the other half to the "Sign Your Mosfets Organ Donner Card Effort". lol

[giantkiller]

How about 'Self combustion for FETS'
I did one and had a 2" bonfire going on the protoboard. There is a black hole where once a mighty FET stood!

I think I'll write some lyrics. Hole, Hole on my board. Where nerds and the popped FETs get fused. Sung to 'home, home on the range'.

--gk. Electric cowboy.

[otto]

Hello all,

sice Im working on TPUs I have blown over 50 (fifty) of this f....g MOSFETs.

My latest type of MOSFET Im using is a IRFP 450 and I would say its almost impossible to blow such a MOSFET.

But now Im blowing every week 1 of my oscillators.

Otto

[EMdevices]

I am proud to announce I have not blown any MOSFETS.     Why?   I simply don't use them for high current/power circuits.  The channel resistance is not stable and changes as the current increases due to depletion etc..., and you will find yourself with a lot of current through a lot of resistance (especially when driving inductive loads) and that means a lot of power (I^2 R = P) that needs to be dissipated by the MOSFET, and in most cases it will exceed the power dissipation capability of the device.  Or you can easily blow the gate and render the device useless, etc... But I have fried a few BJTs, or rather fried my fingers when I touched them   lol

EM