AoE x-Chapters, using power MOSFETs as linear transistors

On Friday, 26 July 2019 19:23:22 UTC+1, George Herold wrote:

On Friday, July 26, 2019 at 11:30:05 AM UTC-4, Winfield Hill wrote:
bitrex wrote...

You might want to experiment with piglet (Eric Wagner)'s idea
of adapting a foldback current-limit circuit into a negative-
resistance current source. We wrote it up for section 2x.12,
in the AoE x-Chapters book, see draft copy on DropBox.

https://www.dropbox.com/s/2urywtwwlpt6sjb/2x.12_negative-resistance_WH.pdf?dl=1

Instead of "With a little prodding" you might substitute,
"For a few haycorns". :^)

GH

I expect the vast majority of readers will have zero interest in the interpersonal stuff of people they don't know, I'd skip it other than to mention it as Eric's circuit.


NT

 

On Friday, 26 July 2019 22:27:57 UTC+1, John Larkin wrote:

On Fri, 26 Jul 2019 11:40:53 -0700, dplatt@coop.radagast.org (Dave
Platt) wrote:
In article <lnemjeh2pckf2thlfsjcv419rdnp88mfhn@4ax.com>,
John Larkin <jjlarkin@highland_snip_technology.com> wrote:

Can you suggest some part numbers for high power n and p channel
lateral fets? Something in the 200 volt, 400 watt ballpark?

Exicon has the ECW20N20/ECW20P20, which are 200-volt 250-watt parts in
TO-264. ECF20N20/ECF20P20 seem to be the same dice, in TO-3. These
types look as if they're two 125-watt dice in a single package.

Their ProFusion arm sells 'em directly.

As far as I can tell, Exicon is the only company making the
lateral-MOSFET dice these days; there may be multiple companies
packaging them.


https://www.profusionplc.com/parts/ecw20n20

"They offer superb sonic characteristics"

What can that mean?

sound good if you smack em with a hammer


NT

 

[bitrex]

On 7/27/19 7:41 PM, tabbypurr@gmail.com wrote:

On Friday, 26 July 2019 19:23:22 UTC+1, George Herold wrote:
On Friday, July 26, 2019 at 11:30:05 AM UTC-4, Winfield Hill wrote:
bitrex wrote...

You might want to experiment with piglet (Eric Wagner)'s idea
of adapting a foldback current-limit circuit into a negative-
resistance current source. We wrote it up for section 2x.12,
in the AoE x-Chapters book, see draft copy on DropBox.

https://www.dropbox.com/s/2urywtwwlpt6sjb/2x.12_negative-resistance_WH.pdf?dl=1

Instead of "With a little prodding" you might substitute,
"For a few haycorns". :^)

GH

I expect the vast majority of readers will have zero interest in the interpersonal stuff of people they don't know, I'd skip it other than to mention it as Eric's circuit.


NT

Yeah it's a good edit