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Groups > sci.electronics.design > #461231 > unrolled thread

Can we PLEASE stop using these shitty symbols?

Started by"Tim Williams" <tiwill@seventransistorlabs.com>
First post2017-05-22 03:02 -0500
Last post2017-05-31 17:53 -0400
Articles 20 on this page of 140 — 18 participants

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Contents

  Can we PLEASE stop using these shitty symbols? "Tim Williams" <tiwill@seventransistorlabs.com> - 2017-05-22 03:02 -0500
    Re: Can we PLEASE stop using these shitty symbols? Winfield Hill <hill@rowland.harvard.edu> - 2017-05-22 03:51 -0700
      Re: Can we PLEASE stop using these shitty symbols? John Larkin <jjlarkin@highlandtechnology.com> - 2017-05-22 08:26 -0700
      Re: Can we PLEASE stop using these shitty symbols? "Tim Williams" <tiwill@seventransistorlabs.com> - 2017-05-22 21:23 -0500
        Re: Can we PLEASE stop using these shitty symbols? Clifford Heath <no.spam@please.net> - 2017-05-23 14:07 +1000
          Re: Can we PLEASE stop using these shitty symbols? Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2017-05-23 12:00 -0400
            Re: Can we PLEASE stop using these shitty symbols? Clifford Heath <no.spam@please.net> - 2017-05-24 08:48 +1000
              Re: Can we PLEASE stop using these shitty symbols? pcdhobbs@gmail.com - 2017-05-23 16:53 -0700
          Re: Can we PLEASE stop using these shitty symbols? whit3rd <whit3rd@gmail.com> - 2017-05-27 17:22 -0700
            Re: Can we PLEASE stop using these shitty symbols? John Larkin <jjlarkin@highlandtechnology.com> - 2017-05-27 17:55 -0700
              Re: Can we PLEASE stop using these shitty symbols? whit3rd <whit3rd@gmail.com> - 2017-05-28 11:48 -0700
                Re: Can we PLEASE stop using these shitty symbols? John Larkin <jjlarkin@highlandtechnology.com> - 2017-05-28 12:39 -0700
            Re: Can we PLEASE stop using these shitty symbols? Clifford Heath <no.spam@please.net> - 2017-05-28 16:02 +1000
            Re: Can we PLEASE stop using these shitty symbols? "Tim Williams" <tiwill@seventransistorlabs.com> - 2017-05-28 07:46 -0500
              Re: Can we PLEASE stop using these shitty symbols? whit3rd <whit3rd@gmail.com> - 2017-05-28 11:56 -0700
              Re: Can we PLEASE stop using these shitty symbols? John Larkin <jjlarkin@highlandtechnology.com> - 2017-05-28 12:43 -0700
        Re: Can we PLEASE stop using these shitty symbols? John Larkin <jjlarkin@highlandtechnology.com> - 2017-05-22 21:18 -0700
          Re: Can we PLEASE stop using these shitty symbols? "Tim Williams" <tiwill@seventransistorlabs.com> - 2017-05-23 03:36 -0500
            Re: Can we PLEASE stop using these shitty symbols? John Larkin <jjlarkin@highlandtechnology.com> - 2017-05-23 07:31 -0700
              Re: Can we PLEASE stop using these shitty symbols? krw@notreal.com - 2017-05-23 20:02 -0400
                Re: Can we PLEASE stop using these shitty symbols? John Larkin <jjlarkin@highlandtechnology.com> - 2017-05-23 21:07 -0700
                  Re: Can we PLEASE stop using these shitty symbols? krw@notreal.com - 2017-05-24 18:50 -0400
    Re: Can we PLEASE stop using these shitty symbols? George Herold <gherold@teachspin.com> - 2017-05-22 06:25 -0700
      Re: Can we PLEASE stop using these shitty symbols? Winfield Hill <hill@rowland.harvard.edu> - 2017-05-22 07:13 -0700
    Re: Can we PLEASE stop using these shitty symbols? John Larkin <jjlarkin@highlandtechnology.com> - 2017-05-22 08:21 -0700
      Re: Can we PLEASE stop using these shitty symbols? bitrex <bitrex@de.lete.earthlink.net> - 2017-05-23 00:07 -0400
        Re: Can we PLEASE stop using these shitty symbols? John Larkin <jjlarkin@highlandtechnology.com> - 2017-05-22 21:22 -0700
    Re: Can we PLEASE stop using these shitty symbols? Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> - 2017-05-25 10:40 -0700
      Re: Can we PLEASE stop using these shitty symbols? Jan Panteltje <pNa0nStpealmtje@yahoo.com> - 2017-05-25 18:03 +0000
        Re: Can we PLEASE stop using these shitty symbols? rickman <gnuarm@gmail.com> - 2017-05-25 14:41 -0400
        Re: Can we PLEASE stop using these shitty symbols? "Tim Williams" <tiwill@seventransistorlabs.com> - 2017-05-26 09:07 -0500
          Re: Can we PLEASE stop using these shitty symbols? Jan Panteltje <pNa0nStpealmtje@yahoo.com> - 2017-05-26 14:24 +0000
          Re: Can we PLEASE stop using these shitty symbols? Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> - 2017-05-26 08:38 -0700
            Re: Can we PLEASE stop using these shitty symbols? Winfield Hill <hill@rowland.harvard.edu> - 2017-05-26 10:08 -0700
              Re: Can we PLEASE stop using these shitty symbols? Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> - 2017-05-26 10:19 -0700
                Re: Can we PLEASE stop using these shitty symbols? Winfield Hill <hill@rowland.harvard.edu> - 2017-05-26 12:15 -0700
                  Re: Can we PLEASE stop using these shitty symbols? Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> - 2017-05-26 12:29 -0700
                    Re: Can we PLEASE stop using these shitty symbols? Winfield Hill <hill@rowland.harvard.edu> - 2017-05-26 13:41 -0700
                      Re: Can we PLEASE stop using these shitty symbols? Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> - 2017-05-26 16:21 -0700
                        Re: Can we PLEASE stop using these shitty symbols? Winfield Hill <hill@rowland.harvard.edu> - 2017-05-26 19:05 -0700
                          Re: Can we PLEASE stop using these shitty symbols? Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> - 2017-05-26 19:09 -0700
                          Re: Can we PLEASE stop using these shitty symbols? Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> - 2017-05-28 09:58 -0700
                      Re: Can we PLEASE stop using these shitty symbols? "Tim Williams" <tiwill@seventransistorlabs.com> - 2017-05-27 06:13 -0500
                        Re: Can we PLEASE stop using these shitty symbols? Winfield Hill <hill@rowland.harvard.edu> - 2017-05-27 05:51 -0700
                          Re: Can we PLEASE stop using these shitty symbols? rickman <gnuarm@gmail.com> - 2017-05-27 12:11 -0400
                            Re: Can we PLEASE stop using these shitty symbols? pcdhobbs@gmail.com - 2017-05-27 10:12 -0700
                              Re: Can we PLEASE stop using these shitty symbols? rickman <gnuarm@gmail.com> - 2017-05-27 13:25 -0400
                              Re: Can we PLEASE stop using these shitty symbols? Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> - 2017-05-27 12:13 -0700
                                Re: Can we PLEASE stop using these shitty symbols? "Tim Williams" <tiwill@seventransistorlabs.com> - 2017-05-28 07:57 -0500
                              Re: Can we PLEASE stop using these shitty symbols? Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-05-27 21:14 +0100
                              Re: Can we PLEASE stop using these shitty symbols? Winfield Hill <hill@rowland.harvard.edu> - 2017-05-27 19:24 -0700
                                Re: Can we PLEASE stop using these shitty symbols? Jan Panteltje <pNa0nStpealmtje@yahoo.com> - 2017-05-28 07:50 +0000
                                  Re: Can we PLEASE stop using these shitty symbols? Winfield Hill <hill@rowland.harvard.edu> - 2017-05-28 04:55 -0700
                                    Re: Can we PLEASE stop using these shitty symbols? Jan Panteltje <pNa0nStpealmtje@yahoo.com> - 2017-05-28 17:57 +0000
                              Re: Can we PLEASE stop using these shitty symbols? John Larkin <jjlarkin@highlandtechnology.com> - 2017-05-27 19:53 -0700
                                Re: Can we PLEASE stop using these shitty symbols? Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> - 2017-05-27 20:15 -0700
                                  Re: Can we PLEASE stop using these shitty symbols? "Tim Williams" <tiwill@seventransistorlabs.com> - 2017-05-28 08:04 -0500
                                Re: Can we PLEASE stop using these shitty symbols? pcdhobbs@gmail.com - 2017-05-27 21:32 -0700
                                  Re: Can we PLEASE stop using these shitty symbols? Winfield Hill <hill@rowland.harvard.edu> - 2017-05-28 04:13 -0700
                                    Re: Can we PLEASE stop using these shitty symbols? pcdhobbs@gmail.com - 2017-05-28 06:29 -0700
                                    Re: Can we PLEASE stop using these shitty symbols? pcdhobbs@gmail.com - 2017-05-28 06:46 -0700
                                      Re: Can we PLEASE stop using these shitty symbols? Winfield Hill <hill@rowland.harvard.edu> - 2017-05-28 07:19 -0700
                                        Re: Can we PLEASE stop using these shitty symbols? Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> - 2017-05-28 09:18 -0700
                                          Re: Can we PLEASE stop using these shitty symbols? Winfield Hill <hill@rowland.harvard.edu> - 2017-05-28 14:19 -0700
                                      Re: Can we PLEASE stop using these shitty symbols? John Larkin <jjlarkin@highlandtechnology.com> - 2017-05-28 09:34 -0700
                                        Re: Can we PLEASE stop using these shitty symbols? Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> - 2017-05-28 09:44 -0700
                                          Re: Can we PLEASE stop using these shitty symbols? John Larkin <jjlarkin@highlandtechnology.com> - 2017-05-28 09:49 -0700
                                            Re: Can we PLEASE stop using these shitty symbols? Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> - 2017-05-28 09:59 -0700
                                              Re: Can we PLEASE stop using these shitty symbols? John Larkin <jjlarkin@highlandtechnology.com> - 2017-05-28 10:36 -0700
                                                Re: Can we PLEASE stop using these shitty symbols? Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> - 2017-05-28 10:58 -0700
                                                Re: Can we PLEASE stop using these shitty symbols? whit3rd <whit3rd@gmail.com> - 2017-05-28 12:07 -0700
                                                  Re: Can we PLEASE stop using these shitty symbols? John Larkin <jjlarkin@highlandtechnology.com> - 2017-05-28 13:22 -0700
                                            Re: Can we PLEASE stop using these shitty symbols? rickman <gnuarm@gmail.com> - 2017-05-28 13:06 -0400
                                        Re: Can we PLEASE stop using these shitty symbols? pcdhobbs@gmail.com - 2017-05-28 12:26 -0700
                                          Re: Can we PLEASE stop using these shitty symbols? Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> - 2017-05-28 13:19 -0700
                                          Re: Can we PLEASE stop using these shitty symbols? John Larkin <jjlarkin@highlandtechnology.com> - 2017-05-28 13:19 -0700
                                            Re: Can we PLEASE stop using these shitty symbols? Lasse Langwadt Christensen <langwadt@fonz.dk> - 2017-05-28 13:44 -0700
                                              Re: Can we PLEASE stop using these shitty symbols? Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> - 2017-05-28 13:49 -0700
                                              Re: Can we PLEASE stop using these shitty symbols? pcdhobbs@gmail.com - 2017-05-28 14:05 -0700
                                                Re: Can we PLEASE stop using these shitty symbols? pcdhobbs@gmail.com - 2017-05-28 14:10 -0700
                                              Re: Can we PLEASE stop using these shitty symbols? John Larkin <jjlarkin@highlandtechnology.com> - 2017-05-28 16:22 -0700
                                                Re: Can we PLEASE stop using these shitty symbols? krw@notreal.com - 2017-05-28 19:37 -0400
                                                  Re: Can we PLEASE stop using these shitty symbols? John Larkin <jjlarkin@highlandtechnology.com> - 2017-05-28 18:41 -0700
                                                    Re: Can we PLEASE stop using these shitty symbols? rickman <gnuarm@gmail.com> - 2017-05-29 00:36 -0400
                                                      Re: Can we PLEASE stop using these shitty symbols? pcdhobbs@gmail.com - 2017-05-29 05:22 -0700
                                                        Re: Can we PLEASE stop using these shitty symbols? John Larkin <jjlarkin@highlandtechnology.com> - 2017-05-29 07:50 -0700
                                                          Re: Can we PLEASE stop using these shitty symbols? Clifford Heath <no.spam@please.net> - 2017-05-30 07:44 +1000
                                                            Re: Can we PLEASE stop using these shitty symbols? krw@notreal.com - 2017-05-29 18:33 -0400
                                                        Re: Can we PLEASE stop using these shitty symbols? Jan Panteltje <pNa0nStpealmtje@yahoo.com> - 2017-05-29 15:25 +0000
                                                          Re: Can we PLEASE stop using these shitty symbols? Jan Panteltje <pNa0nStpealmtje@yahoo.com> - 2017-05-29 15:31 +0000
                                                          Re: Can we PLEASE stop using these shitty symbols? Jan Panteltje <pNa0nStpealmtje@yahoo.com> - 2017-05-29 15:32 +0000
                                          Re: Can we PLEASE stop using these shitty symbols? John Larkin <jjlarkin@highlandtechnology.com> - 2017-05-30 15:14 -0700
                                            Re: Can we PLEASE stop using these shitty symbols? Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> - 2017-05-30 17:05 -0700
                                            Re: Can we PLEASE stop using these shitty symbols? pcdhobbs@gmail.com - 2017-05-30 17:33 -0700
                                              Re: Can we PLEASE stop using these shitty symbols? John Larkin <jjlarkin@highlandtechnology.com> - 2017-05-30 18:53 -0700
                                                Re: Can we PLEASE stop using these shitty symbols? rickman <gnuarm@gmail.com> - 2017-05-30 22:04 -0400
                                                  Re: Can we PLEASE stop using these shitty symbols? Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2017-05-31 10:11 -0400
                                                    Re: Can we PLEASE stop using these shitty symbols? rickman <gnuarm@gmail.com> - 2017-05-31 10:27 -0400
                                                      Re: Can we PLEASE stop using these shitty symbols? Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2017-05-31 10:39 -0400
                                                        Re: Can we PLEASE stop using these shitty symbols? John Larkin <jjlarkin@highlandtechnology.com> - 2017-05-31 08:25 -0700
                                                          Re: Can we PLEASE stop using these shitty symbols? Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> - 2017-05-31 08:31 -0700
                                                            Re: Can we PLEASE stop using these shitty symbols? John Larkin <jjlarkin@highlandtechnology.com> - 2017-05-31 08:50 -0700
                                                        Re: Can we PLEASE stop using these shitty symbols? rickman <gnuarm@gmail.com> - 2017-05-31 22:34 -0400
                                                    Re: Can we PLEASE stop using these shitty symbols? Martin Brown <'''newspam'''@nezumi.demon.co.uk> - 2017-05-31 15:50 +0100
                                                      Re: Can we PLEASE stop using these shitty symbols? rickman <gnuarm@gmail.com> - 2017-05-31 22:38 -0400
                                                    Re: Can we PLEASE stop using these shitty symbols? John Larkin <jjlarkin@highlandtechnology.com> - 2017-05-31 08:19 -0700
                                                Re: Can we PLEASE stop using these shitty symbols? pcdhobbs@gmail.com - 2017-05-30 21:36 -0700
                                                  Re: Can we PLEASE stop using these shitty symbols? Clifford Heath <no.spam@please.net> - 2017-05-31 16:01 +1000
                                                    Re: Can we PLEASE stop using these shitty symbols? krw@notreal.com - 2017-05-31 17:46 -0400
                                              Re: Can we PLEASE stop using these shitty symbols? rickman <gnuarm@gmail.com> - 2017-05-30 21:56 -0400
                                                Re: Can we PLEASE stop using these shitty symbols? Winfield Hill <hill@rowland.harvard.edu> - 2017-05-31 05:01 -0700
                                                  Re: Can we PLEASE stop using these shitty symbols? rickman <gnuarm@gmail.com> - 2017-05-31 09:03 -0400
                                                    Re: Can we PLEASE stop using these shitty symbols? Winfield Hill <hill@rowland.harvard.edu> - 2017-05-31 07:09 -0700
                                                      Re: Can we PLEASE stop using these shitty symbols? Jan Panteltje <pNa0nStpealmtje@yahoo.com> - 2017-05-31 14:23 +0000
                                                      Re: Can we PLEASE stop using these shitty symbols? rickman <gnuarm@gmail.com> - 2017-05-31 10:30 -0400
                                                      Re: Can we PLEASE stop using these shitty symbols? John Larkin <jjlarkin@highlandtechnology.com> - 2017-05-31 08:38 -0700
                                                    Re: Can we PLEASE stop using these shitty symbols? Jan Panteltje <pNa0nStpealmtje@yahoo.com> - 2017-05-31 14:21 +0000
                                                      Re: Can we PLEASE stop using these shitty symbols? Jeroen Belleman <jeroen@nospam.please> - 2017-05-31 17:00 +0200
                                                        Re: Can we PLEASE stop using these shitty symbols? Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> - 2017-05-31 08:14 -0700
                                                        Re: Can we PLEASE stop using these shitty symbols? John Larkin <jjlarkin@highlandtechnology.com> - 2017-05-31 08:40 -0700
                                                  Re: Can we PLEASE stop using these shitty symbols? krw@notreal.com - 2017-05-31 17:49 -0400
                                        Re: Can we PLEASE stop using these shitty symbols? Winfield Hill <hill@rowland.harvard.edu> - 2017-05-28 14:30 -0700
                                          Re: Can we PLEASE stop using these shitty symbols? pcdhobbs@gmail.com - 2017-05-28 15:14 -0700
                                            Re: Can we PLEASE stop using these shitty symbols? Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> - 2017-05-28 15:25 -0700
                                              Re: Can we PLEASE stop using these shitty symbols? Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> - 2017-05-28 16:23 -0700
                                  Re: Can we PLEASE stop using these shitty symbols? "Tim Williams" <tiwill@seventransistorlabs.com> - 2017-05-28 08:03 -0500
                                    Re: Can we PLEASE stop using these shitty symbols? John Larkin <jjlarkin@highlandtechnology.com> - 2017-05-30 15:18 -0700
                                      Re: Can we PLEASE stop using these shitty symbols? "Tim Williams" <tiwill@seventransistorlabs.com> - 2017-05-30 23:27 -0500
          Re: Can we PLEASE stop using these shitty symbols? rickman <gnuarm@gmail.com> - 2017-05-26 12:33 -0400
          Re: Can we PLEASE stop using these shitty symbols? John Larkin <jjlarkin@highland_snip_technology.com> - 2017-05-26 10:14 -0700
            Re: Can we PLEASE stop using these shitty symbols? "Tim Williams" <tiwill@seventransistorlabs.com> - 2017-05-27 06:10 -0500
              Re: Can we PLEASE stop using these shitty symbols? John Larkin <jjlarkin@highlandtechnology.com> - 2017-05-27 08:11 -0700
                Re: Can we PLEASE stop using these shitty symbols? "Tim Williams" <tiwill@seventransistorlabs.com> - 2017-05-28 07:53 -0500
                  Re: Can we PLEASE stop using these shitty symbols? John Larkin <jjlarkin@highlandtechnology.com> - 2017-05-28 08:06 -0700
                    Re: Can we PLEASE stop using these shitty symbols? rickman <gnuarm@gmail.com> - 2017-05-28 12:13 -0400
      Re: Can we PLEASE stop using these shitty symbols? Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> - 2017-05-27 16:38 -0700
    Re: Can we PLEASE stop using these shitty symbols? Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> - 2017-05-31 09:37 -0700
      Re: Can we PLEASE stop using these shitty symbols? "Tim Williams" <tiwill@seventransistorlabs.com> - 2017-05-31 13:50 -0500
        Re: Can we PLEASE stop using these shitty symbols? Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> - 2017-05-31 12:12 -0700
        Re: Can we PLEASE stop using these shitty symbols? krw@notreal.com - 2017-05-31 17:53 -0400

Page 7 of 7 — ← Prev page 1 2 3 4 5 6 [7]


#462490

Fromkrw@notreal.com
Date2017-05-31 17:49 -0400
Message-ID<bfeuicd9sqc7uqa9nufmemj8dcls726a2a@4ax.com>
In reply to#462409
On 31 May 2017 05:01:47 -0700, Winfield Hill
<hill@rowland.harvard.edu> wrote:

>rickman wrote...
>>
>> ONE stroke.  The difference is ONE LINE SEGMENT! 
>> This entire conversation is about one line segment.
>
> Actually, two strokes, and worry about adding a dot.
>
> That never bothered me, heck, did it for 45 years.
> To me it's more about the larger, cluttered symbol.
> I like the simplicity.  But I think we got carried 
> away in AoE III; there are places it'd have made
> more sense.  Plus, originally I wanted to make our
> readers familiar with both styles.

But if you change the style for no reason it leaves the reader trying
to fathom a reason where there is none.  A standard symbol is a good
thing.  Any standard.

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#462126

FromWinfield Hill <hill@rowland.harvard.edu>
Date2017-05-28 14:30 -0700
Message-ID<ogffid0ec1@drn.newsguy.com>
In reply to#462083
John Larkin wrote...
>
> It would be best to include every mosfet property ...
> enhancement or depletion properties. ...

 Now there's an issue, sometimes it's not obvious
 which kind of part a designer has chosen, and I've
 been forced to look up the listed part just to find
 out.  Quick, is a BSS126 enhancement or depletion?
 How about a BSS138 or a BSS159?


-- 
 Thanks,
    - Win

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#462130

Frompcdhobbs@gmail.com
Date2017-05-28 15:14 -0700
Message-ID<25f3a797-66d5-49c5-b94b-31d801f0144b@googlegroups.com>
In reply to#462126
> Now there's an issue, sometimes it's not obvious 
> which kind of part a designer has chosen, and I've 
> been forced to look up the listed part just to find 
> out.

The channel line is sometimes drawn dashed in the Little-endian symbol to indicate enhancement mode. Unfortunately due to the relative rarity of depletion MOSFETs, it doesn't seem to have caught on. 

Cheers

Phil Hobbs

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#462131

FromJim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com>
Date2017-05-28 15:25 -0700
Message-ID<r9jmiclrsu8hhi6rci11cucve03v0eo2c8@4ax.com>
In reply to#462130
On Sun, 28 May 2017 15:14:08 -0700 (PDT), pcdhobbs@gmail.com wrote:

>> Now there's an issue, sometimes it's not obvious 
>> which kind of part a designer has chosen, and I've 
>> been forced to look up the listed part just to find 
>> out.
>
>The channel line is sometimes drawn dashed in the Little-endian symbol to indicate enhancement mode. Unfortunately due to the relative rarity of depletion MOSFETs, it doesn't seem to have caught on. 
>
>Cheers
>
>Phil Hobbs

"Standard" in the I/C world for a depletion MOS device is a double
line for the channel.

I delight when a foundry process has them... they're extremely useful
for kick-starting bandgaps, then disconnecting the mirror values from
dependency on VDD-VSS.

Unlike d/dt kick-starters depletion mode kick-starters always restart
properly on a brown-out.
		
                                        ...Jim Thompson
-- 
| James E.Thompson                                 |    mens     |
| Analog Innovations                               |     et      |
| Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    |
| STV, Queen Creek, AZ 85142    Skype: skypeanalog |             |
| Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  |
| E-mail Icon at http://www.analog-innovations.com |    1962     |

     Thinking outside the box... producing elegant solutions.

"It is not in doing what you like, but in liking what you do that
is the secret of happiness."  -James Barrie

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#462139

FromJim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com>
Date2017-05-28 16:23 -0700
Message-ID<1ummic5goibv9notrai6dmjdul8o4adj2u@4ax.com>
In reply to#462131
On Sun, 28 May 2017 15:25:12 -0700, Jim Thompson
<To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:

>On Sun, 28 May 2017 15:14:08 -0700 (PDT), pcdhobbs@gmail.com wrote:
>
>>> Now there's an issue, sometimes it's not obvious 
>>> which kind of part a designer has chosen, and I've 
>>> been forced to look up the listed part just to find 
>>> out.
>>
>>The channel line is sometimes drawn dashed in the Little-endian symbol to indicate enhancement mode. Unfortunately due to the relative rarity of depletion MOSFETs, it doesn't seem to have caught on. 
>>
>>Cheers
>>
>>Phil Hobbs
>
>"Standard" in the I/C world for a depletion MOS device is a double
>line for the channel.

As in...

<http://www.analog-innovations.com/SED/JT_PSpice_Symbols.pdf>

>
>I delight when a foundry process has them... they're extremely useful
>for kick-starting bandgaps, then disconnecting the mirror values from
>dependency on VDD-VSS.
>
>Unlike d/dt kick-starters depletion mode kick-starters always restart
>properly on a brown-out.
>		
>                                        ...Jim Thompson
		
                                        ...Jim Thompson
-- 
| James E.Thompson                                 |    mens     |
| Analog Innovations                               |     et      |
| Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    |
| STV, Queen Creek, AZ 85142    Skype: skypeanalog |             |
| Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  |
| E-mail Icon at http://www.analog-innovations.com |    1962     |

     Thinking outside the box... producing elegant solutions.

"It is not in doing what you like, but in liking what you do that
is the secret of happiness."  -James Barrie

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#462062

From"Tim Williams" <tiwill@seventransistorlabs.com>
Date2017-05-28 08:03 -0500
Message-ID<ogehl0$u11$1@dont-email.me>
In reply to#462041
<pcdhobbs@gmail.com> wrote in message 
news:f3c21660-1ce9-4c0d-8509-010397e4e5c3@googlegroups.com...
>> I like the insulated-gate-bipolar symbol because it's instantly,
>>intuitively obvious which way the current will flow. I'm not so much
>>interested in the semiconductor physics as feeling how the circuit
>>works.
>
> The current flows as it does because of the device physics and bias 
> conditions, not because of a magic symbol.
>

The confusion is whether the reader will notice that the arrow terminal is 
indicating P or N channel.

So which way does the current flow, as it does because of the device physics 
and bias conditions, _based on what the user purchased_ because of a magic 
symbol? :-)

Tim

-- 
Seven Transistor Labs, LLC
Electrical Engineering Consultation and Contract Design
Website: http://seventransistorlabs.com 

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#462349

FromJohn Larkin <jjlarkin@highlandtechnology.com>
Date2017-05-30 15:18 -0700
Message-ID<fsrric9om7oe97ntjn1dd6ddf6pkm8fm1c@4ax.com>
In reply to#462062
On Sun, 28 May 2017 08:03:42 -0500, "Tim Williams"
<tiwill@seventransistorlabs.com> wrote:

>
><pcdhobbs@gmail.com> wrote in message 
>news:f3c21660-1ce9-4c0d-8509-010397e4e5c3@googlegroups.com...
>>> I like the insulated-gate-bipolar symbol because it's instantly,
>>>intuitively obvious which way the current will flow. I'm not so much
>>>interested in the semiconductor physics as feeling how the circuit
>>>works.
>>
>> The current flows as it does because of the device physics and bias 
>> conditions, not because of a magic symbol.
>>
>
>The confusion is whether the reader will notice that the arrow terminal is 
>indicating P or N channel.

Such people will be equally confused by PNP and NPN transistors, and
probably diodes too.


-- 

John Larkin         Highland Technology, Inc

lunatic fringe electronics 

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#462392

From"Tim Williams" <tiwill@seventransistorlabs.com>
Date2017-05-30 23:27 -0500
Message-ID<oglgh5$v2v$1@dont-email.me>
In reply to#462349
"John Larkin" <jjlarkin@highlandtechnology.com> wrote in message 
news:fsrric9om7oe97ntjn1dd6ddf6pkm8fm1c@4ax.com...
> Such people will be equally confused by PNP and NPN transistors, and
> probably diodes too.

"P --> N".

Show me which of these types that violates.

Admittedly, the collector is a hack, but it's better than the alternative: a 
transistor with two emitters.  Which would be almost as useless a 
representation as the textbook "stack of bricks" diagram.

Tim

-- 
Seven Transistor Labs, LLC
Electrical Engineering Consultation and Contract Design
Website: http://seventransistorlabs.com 

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#461825

Fromrickman <gnuarm@gmail.com>
Date2017-05-26 12:33 -0400
Message-ID<og9l6r$rdq$1@dont-email.me>
In reply to#461804
Tim Williams wrote on 5/26/2017 10:07 AM:
> "Jan Panteltje" <pNa0nStpealmtje@yahoo.com> wrote in message
> news:og76a8$1o61$1@gioia.aioe.org...
>>> Why the need for such inaccurate/klutzy symbol representations?
>>>
>>> I generally use...
>>>
>>> <http://www.analog-innovations.com/SED/MOS_Symbol_Discussion_(SED).png>
>>
>> Why the circle / inverter symbol at the gates, don't these always invert?
>
> What, you mean someone's arbitrary symbology is confusing?  Imagine
> that! ;-)
>
> I think the circle symbol is better understood to mean "active low pin",
> rather than "negated".  In that sense, a NOT gate is really a buffer
> that converts active-high to active-low logic.

Nope!  In logic the circle means inversion, period.  When looking at any 
given part of a circuit you may or may not know if a signal is active 
high or low, but you know the bubble inverts.  BTW, we seldom call it a 
"circle".  It is called an "inversion bubble".

http://bfy.tw/C1MK


> It's perfectly reasonable to draw logic circuits with active low inputs
> or outputs, because those often arise in practice: a single transistor
> is either active high/low, or hi-Z.  Activity is logically when it's
> "on", and so, if you build your circuit out of one polarity of
> transistors (such as the historical NMOS or TTL logic families), it's
> logical to use one state as "active".  So of course, all the classic
> data buses used active-low signals, or NPN open collector ("wired-OR",
> and notice it's logical-OR in negative logic only) lines.

Huh?  How is this related to the FET symbol?


> But even so, it's redundant, since the body connection is shown,
> defining the transistor as N or P.  How could you ever /not/ have an
> "active low" PMOS? :)
>
> So, I don't object to the IC designers' notation; if body is left off
> (because it's almost always VDD or VSS), the circle serves to note
> polarity, and D/S distinction is meaningless for symmetrical devices, so
> no arrow is needed on them.  It serves its purpose, without contravening
> existing understanding, and without making contradictory or confusing
> compromises. :)

So what about devices that aren't symmetric?

-- 

Rick C

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#461835

FromJohn Larkin <jjlarkin@highland_snip_technology.com>
Date2017-05-26 10:14 -0700
Message-ID<9jogiclorc78bit7nbg2o2q0bi1v8ou4hv@4ax.com>
In reply to#461804
On Fri, 26 May 2017 09:07:26 -0500, "Tim Williams"
<tiwill@seventransistorlabs.com> wrote:

>"Jan Panteltje" <pNa0nStpealmtje@yahoo.com> wrote in message 
>news:og76a8$1o61$1@gioia.aioe.org...
>>>Why the need for such inaccurate/klutzy symbol representations?
>>>
>>>I generally use...
>>>
>>><http://www.analog-innovations.com/SED/MOS_Symbol_Discussion_(SED).png>
>>
>> Why the circle / inverter symbol at the gates, don't these always invert?
>
>What, you mean someone's arbitrary symbology is confusing?

It's only confusing to you.


-- 

John Larkin         Highland Technology, Inc
picosecond timing   precision measurement 

jlarkin att highlandtechnology dott com
http://www.highlandtechnology.com

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#461970

From"Tim Williams" <tiwill@seventransistorlabs.com>
Date2017-05-27 06:10 -0500
Message-ID<ogbmlh$qpt$1@dont-email.me>
In reply to#461835
"John Larkin" <jjlarkin@highland_snip_technology.com> wrote in message 
news:9jogiclorc78bit7nbg2o2q0bi1v8ou4hv@4ax.com...
> It's only confusing to you.

Larkin once again demonstrating willfull ignorance to the example provided 
in the OP.

Tim

-- 
Seven Transistor Labs, LLC
Electrical Engineering Consultation and Contract Design
Website: http://seventransistorlabs.com 

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#461991

FromJohn Larkin <jjlarkin@highlandtechnology.com>
Date2017-05-27 08:11 -0700
Message-ID<3l5jicdcuuhpfjui8r4pnp8mdc6mbt3n7f@4ax.com>
In reply to#461970
On Sat, 27 May 2017 06:10:57 -0500, "Tim Williams"
<tiwill@seventransistorlabs.com> wrote:

>"John Larkin" <jjlarkin@highland_snip_technology.com> wrote in message 
>news:9jogiclorc78bit7nbg2o2q0bi1v8ou4hv@4ax.com...
>> It's only confusing to you.
>
>Larkin once again demonstrating willfull ignorance to the example provided 
>in the OP.
>
>Tim

You are missing the big picture: It doesn't matter. The electrons
don't care what you drew on the schematic or what words you used to
describe anything.


-- 

John Larkin         Highland Technology, Inc

lunatic fringe electronics 

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#462059

From"Tim Williams" <tiwill@seventransistorlabs.com>
Date2017-05-28 07:53 -0500
Message-ID<ogeh1t$s6i$1@dont-email.me>
In reply to#461991
"John Larkin" <jjlarkin@highlandtechnology.com> wrote in message 
news:3l5jicdcuuhpfjui8r4pnp8mdc6mbt3n7f@4ax.com...
> You are missing the big picture: It doesn't matter. The electrons
> don't care what you drew on the schematic or what words you used to
> describe anything.

So the electrons magically know which way 'round the source and drain are?

Shall I build your circuit and the OP circuit and connect both to an 
unlimited current supply?

Which one is right, John? :-)

Tim

-- 
Seven Transistor Labs, LLC
Electrical Engineering Consultation and Contract Design
Website: http://seventransistorlabs.com 

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#462072

FromJohn Larkin <jjlarkin@highlandtechnology.com>
Date2017-05-28 08:06 -0700
Message-ID<7iplic1du84ag7etlp4s7v8nhqfpd9emqo@4ax.com>
In reply to#462059
On Sun, 28 May 2017 07:53:31 -0500, "Tim Williams"
<tiwill@seventransistorlabs.com> wrote:

>"John Larkin" <jjlarkin@highlandtechnology.com> wrote in message 
>news:3l5jicdcuuhpfjui8r4pnp8mdc6mbt3n7f@4ax.com...
>> You are missing the big picture: It doesn't matter. The electrons
>> don't care what you drew on the schematic or what words you used to
>> describe anything.
>
>So the electrons magically know which way 'round the source and drain are?
>
>Shall I build your circuit and the OP circuit and connect both to an 
>unlimited current supply?
>
>Which one is right, John? :-)
>
>Tim

My circuits and PCBs are right, the first time around, because I spend
my time checking and being careful, not twisting my undies over things
that don't matter.

Lots of my designs do have more than 7 transistors.

https://dl.dropboxusercontent.com/u/53724080/Circuits/Amps/Amp.jpg


-- 

John Larkin         Highland Technology, Inc

jlarkin att highlandtechnology dott com
http://www.highlandtechnology.com

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#462080

Fromrickman <gnuarm@gmail.com>
Date2017-05-28 12:13 -0400
Message-ID<ogespo$on$1@dont-email.me>
In reply to#462072
John Larkin wrote on 5/28/2017 11:06 AM:
> On Sun, 28 May 2017 07:53:31 -0500, "Tim Williams"
> <tiwill@seventransistorlabs.com> wrote:
>
>> "John Larkin" <jjlarkin@highlandtechnology.com> wrote in message
>> news:3l5jicdcuuhpfjui8r4pnp8mdc6mbt3n7f@4ax.com...
>>> You are missing the big picture: It doesn't matter. The electrons
>>> don't care what you drew on the schematic or what words you used to
>>> describe anything.
>>
>> So the electrons magically know which way 'round the source and drain are?
>>
>> Shall I build your circuit and the OP circuit and connect both to an
>> unlimited current supply?
>>
>> Which one is right, John? :-)
>>
>> Tim
>
> My circuits and PCBs are right, the first time around, because I spend
> my time checking and being careful, not twisting my undies over things
> that don't matter.

Funny, I thought that was exactly what this thread was all about, twisting 
your undies over things that don't matter... one line segment in a schematic 
symbol.

-- 

Rick C

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#462021

FromJim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com>
Date2017-05-27 16:38 -0700
Message-ID<5t2kic9e2dnfpv2v92b0holippp03kuqma@4ax.com>
In reply to#461690
On Thu, 25 May 2017 10:40:17 -0700, Jim Thompson
<To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:

>Why the need for such inaccurate/klutzy symbol representations?
>
>I generally use...
>
><http://www.analog-innovations.com/SED/MOS_Symbol_Discussion_(SED).png>
>
>Besides, symbols are only there for human consumption,  All that
>matters is how the devices netlist so that simulators (or PCB
>software) properly perform.
>		
>                                        ...Jim Thompson

As in...

REFDES=MN?
PART=XFAB-NMOS
MODEL=MODN
TEMPLATE=M^@REFDES %d %g %s %b @MODEL L=@L W=@W AD={@DF*@W*2*@HDIF}
+ AS={@SF*@W*2*@HDIF} PD={@DF*2*(@W+2*@HDIF)} PS={@SF*2*(@W+2*@HDIF)}
+ NRD={@HDIF/@W} NRS={@HDIF/@W} M=@M
L=0.6u
W=20u
M=1
HDIF=0.8u
LVS=M^@REFDES %d %g %s %b @MODEL L=@L W=@W WTOTAL={@W*@M}
DF={(2*@M-(-1)**@M+1)/4/@M}
SF={(2*@M+(-1)**@M+3)/4/@M}
CHIPAREA=M^@REFDES %d %g %s %b @MODEL L=@L W=@W M= @M \n ; 
CHIPAREA = {(((@M+1)*2+4)*@HDIF+@M*@L)*(@W+4*@HDIF)}

All this folderol is necessary because PSpice, and LTspice, don't
automatically estimate parasitics as do chip-dedicated simulators,
such as Cadence... so I do it myself ;-)

I also implement binning in a similar fashion.

The LVS template allows me to pass a netlist to my layout associate
without all the parasitic garbage.

The CHIPAREA template allows me to estimate chip area (once processed
by a tool developed by my son, Aaron).
		
                                        ...Jim Thompson
-- 
| James E.Thompson                                 |    mens     |
| Analog Innovations                               |     et      |
| Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    |
| STV, Queen Creek, AZ 85142    Skype: skypeanalog |             |
| Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  |
| E-mail Icon at http://www.analog-innovations.com |    1962     |

     Thinking outside the box... producing elegant solutions.

"It is not in doing what you like, but in liking what you do that
is the secret of happiness."  -James Barrie

[toc] | [prev] | [next] | [standalone]


#462448

FromJim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com>
Date2017-05-31 09:37 -0700
Message-ID<jhrticl8kb4qe68f0plg9fcsp9v3ac41n3@4ax.com>
In reply to#461231
On Mon, 22 May 2017 03:02:25 -0500, "Tim Williams"
<tiwill@seventransistorlabs.com> wrote:

>Proof in case:
>
>http://www.ecnmag.com/sites/ecnmag.com/files/legacyimages/ECN/Articles/CS-1109-Figure_02.jpg
>
>It's bad enough that AoE3 stooped to using those MOSFET symbols.  (The only 
>problem I can find with the tome!  Why did it have to be such an important, 
>and deceptive, problem!?  Please Win, if you fix this in a reprint, I will 
>send you the finest bottle of liquor I can find.)
>

[snip]

Give it up, Tim.  Win has his head thoroughly stuffed in the sand and
his feet dug in, "Picking up steam now, maybe our book will push it a
bit."

So amuse yourself with the "designs" that will fail, or better yet,
flame, due to the symbol confusion.

To add further to the confusion...

<http://s3.computerhistory.org/siliconengine/wanlass-us3356858a.pdf >

See pages 3 and 4.
		
                                        ...Jim Thompson
-- 
| James E.Thompson                                 |    mens     |
| Analog Innovations                               |     et      |
| Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    |
| STV, Queen Creek, AZ 85142    Skype: skypeanalog |             |
| Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  |
| E-mail Icon at http://www.analog-innovations.com |    1962     |

     Thinking outside the box... producing elegant solutions.

"It is not in doing what you like, but in liking what you do that
is the secret of happiness."  -James Barrie

[toc] | [prev] | [next] | [standalone]


#462465

From"Tim Williams" <tiwill@seventransistorlabs.com>
Date2017-05-31 13:50 -0500
Message-ID<ogn336$7mt$1@dont-email.me>
In reply to#462448
"Jim Thompson" <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote in 
message news:jhrticl8kb4qe68f0plg9fcsp9v3ac41n3@4ax.com...
> To add further to the confusion...
>
> <http://s3.computerhistory.org/siliconengine/wanlass-us3356858a.pdf >
>
> See pages 3 and 4.

Go figure, patent lawyers not caring for clarity or accuracy :-)

Tim

-- 
Seven Transistor Labs, LLC
Electrical Engineering Consultation and Contract Design
Website: http://seventransistorlabs.com 

[toc] | [prev] | [next] | [standalone]


#462469

FromJim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com>
Date2017-05-31 12:12 -0700
Message-ID<v45uic9gvvacdn1gm6j22b14rdp3g8g2hj@4ax.com>
In reply to#462465
On Wed, 31 May 2017 13:50:52 -0500, "Tim Williams"
<tiwill@seventransistorlabs.com> wrote:

>"Jim Thompson" <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote in 
>message news:jhrticl8kb4qe68f0plg9fcsp9v3ac41n3@4ax.com...
>> To add further to the confusion...
>>
>> <http://s3.computerhistory.org/siliconengine/wanlass-us3356858a.pdf >
>>
>> See pages 3 and 4.
>
>Go figure, patent lawyers not caring for clarity or accuracy :-)
>
>Tim

That, or the inventor not proofing the application?

I had a recent event where the client (one of those jerks who insists
on being listed as an inventor, _first_ no less) proofed the
application rather than sending it to me first.  The application was
denied because of a truly lousy explanation of the function :-(
		
                                        ...Jim Thompson
-- 
| James E.Thompson                                 |    mens     |
| Analog Innovations                               |     et      |
| Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    |
| STV, Queen Creek, AZ 85142    Skype: skypeanalog |             |
| Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  |
| E-mail Icon at http://www.analog-innovations.com |    1962     |

     Thinking outside the box... producing elegant solutions.

"It is not in doing what you like, but in liking what you do that
is the secret of happiness."  -James Barrie

[toc] | [prev] | [next] | [standalone]


#462491

Fromkrw@notreal.com
Date2017-05-31 17:53 -0400
Message-ID<opeuicdflq9ggo87kfv3h99s5omfllt0vf@4ax.com>
In reply to#462465
On Wed, 31 May 2017 13:50:52 -0500, "Tim Williams"
<tiwill@seventransistorlabs.com> wrote:

>"Jim Thompson" <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote in 
>message news:jhrticl8kb4qe68f0plg9fcsp9v3ac41n3@4ax.com...
>> To add further to the confusion...
>>
>> <http://s3.computerhistory.org/siliconengine/wanlass-us3356858a.pdf >
>>
>> See pages 3 and 4.
>
>Go figure, patent lawyers not caring for clarity or accuracy :-)

The whole point of the "teachings" is obscurity.  ;-)

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