Strange high frequency push pull transformer action

Perkins

in the wrong way.

That's a complementary pair... separate chips on hybrid substrate. I used that very device to solve a touch screen power supply issue for someone up near you where it BLIZZARDS ;-) ...Jim Thompson

Perkins

in the wrong way.

Same comments apply to you as to Spehro. You need reading glasses. You must be getting old :-) ...Jim Thompson

You said it.

e Perkins

FET is in the wrong way.

e body

to

what part of it?

that TI part two P-channel fets common source, isn't that what you want?

-Lasse

Perkins

is in the wrong way.

body

Yep. Sorry. Those ARE the same sex :-( ...Jim Thompson

Perkins

is in the wrong way.

body

Didn't you just advocate for legalizing that?

A oui bit of snow might be nice for a change- it's getting a bit dreary with the short days and November rain.

Best regards, Spehro Pefhany

primary

non-dot

in you

Forrest

checked for

Q1 goes

on.

"off" FET

choice.

decayed,

fall

Could be, you would get the same basic appearance in both drains but the voltage magnitudes would be different.

?-)

is

like

since it

power

reflection of

looked

style).

the

It

primary

non-dot

you

Forrest

for

goes

Somebody needs to tell him 10 MHz hasn't been fancy RF stuff for 75 years.

?-)

It clouded up and sprinkled here this afternoon :-) ...Jim Thompson

On a sunny day (Thu, 08 Nov 2012 16:40:51 -0500) it happened Spehro Pefhany wrote in :

I just measured a BF961 dual gate and it has no body diode.

Maybe the body diode is merely a mechanical consequence of mounting the si on a heat conducting copper sort of thing for power MOSFETS. Sometimes the body diode in that case is actually a sort of zener, or avalanche protection, in reverse mode, like for example in the case of IRLZ34A that I use a lot.

Doesn't it mean isolating drains from substrate?

RL

Draw a cross section...

P-type wafer/substrate

Call left-most N-type plug as Drain_1

Call right-most N-type plug as Drain_2

Call center N-type plug as the Common Source

Tie that Common Source to the P-type substrate

Add oxide, then Gates over the P-type separating the plugs ...Jim Thompson

Arrgh, 'tis an inter lingual pun.

?-)

How many eggs does it take to make an omlette?

One is an oeuf...

Best regards, Spehro Pefhany

I think I'm going to be sick :-( ...Jim Thompson

Spehro Pefhany a écrit :

Oeuf corse...