Reply by Jim Thompson●September 19, 20132013-09-19
On Wed, 18 Sep 2013 22:34:08 -0700, Jim Thompson
<To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:
>On Thu, 19 Sep 2013 05:18:26 +0000 (UTC), Don Kuenz
><garbage@crcomp.net> wrote:
>
>>Jim Thompson <To-Email-Use-The-Envelope-Icon@on-my-web-site.com> wrote:
>>> On Sat, 14 Sep 2013 02:19:16 +0000 (UTC), Don Kuenz
>>> <garbage@crcomp.net> wrote:
>>>
>>>>Jim Thompson <To-Email-Use-The-Envelope-Icon@on-my-web-site.com> wrote:
>>>>> On Wed, 11 Sep 2013 09:14:33 -0700, Jim Thompson
>>>>> <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:
>>>>>
>>>>>>On Wed, 11 Sep 2013 08:55:33 -0700, RobertMacy
>>>>>><robert.a.macy@gmail.com> wrote:
>>>>>>
>>>>>>>On Wed, 11 Sep 2013 08:38:57 -0700, Jim Thompson
>>>>>>><To-Email-Use-The-Envelope-Icon@on-my-web-site.com> wrote:
>>>>>>>
>>>>>>>> On Wed, 11 Sep 2013 07:13:46 -0700, RobertMacy
>>>>>>>> <robert.a.macy@gmail.com> wrote:
>>>>>>>>
>>>>>>>>> ..snip...
>>>>>>>>>
>>>>>>>>> Did you look through the 100+MB of Alex Bordodynov's models?
>>>>>>>>>
>>>>>>>>> I only could download one set, not the larger set, so couldn't peruse.
>>>>>>>>
>>>>>>>> I've seen that name on the LTspice list. Do you have a link to his
>>>>>>>> site?
>>>>>>>>
>>>>>>>> ...snip...
>>>>>>>>
>>>>>>>> ...Jim Thompson
>>>>>>>
>>>>>>>His models usually are accurate and have conversion speed enhancements. He
>>>>>>>supplied two links, circa July 5, 2013, posted to the LTspice group, which
>>>>>>>I trashed after downloading each. Big mistake!
>>>>>>>
>>>>>>>LTspiceIV.zip is 37MB of 'tiny' little .asc files so you have an idea how
>>>>>>>many models are in there.
>>>>>>>LTSPICE.DOC is 67MB and dialup download took HOURS!!! only to find out
>>>>>>>today that when unzipping, comes up 'corrupted' download again!
>>>>>>>
>>>>>>
>>>>>>Thanks. That will allow me to find it. As you know, I keep a record
>>>>>>of everything... even an LTspice list directory "Pre_2013" ;-)
>>>>>>
>>>>>>Found it. How do I download, it's all in Russian, and I can't get the
>>>>>>download to start :-(
>>>>>>
>>>>>> ...Jim Thompson
>>>>>
>>>>> Here you go...
>>>>>
>>>>> <http://us.ua/1162032/>
>>>>>
>>>>> Kill the pop-up on the lower left, then you can download.
>>>>
>>>>Thank you for sharing Jim. Here's a more Anglo friendly link.
>>>>
>>>>http://ltwiki.org/index.php5?title=Components_Library_and_Circuits
>>>
>>> Here's something to fret over, compare Unijunction models, wonder
>>> which is real...
>>>
>>> <http://www.analog-innovations.com/SED/CompareUnijunctionModels.pdf>
>>
>>None of the above accurately models the DC component when a 2N4870 is
>>used in the test circuit. The measured 2N4870 DC excursion is from about
>>-1V to about +0.25V (IIRC). The 2N2646 in THYRYSTR.LIB comes closest to
>>the AC component, except the observed peaks are much flatter, which
>>makes the waveform look like a pulse with about a 90% duty cycle.
>>
>>Bordodynov keeps his 2N2646 in a file named Ujt&Put.lib. I may fiddle
>>with this obsolete technology a bit more for the sake of delving deeper
>>into SPICE modeling. Is the Common 2 Transistor Model worth describing?
>
>The common two-transistor version models PUT's quite well,
>
>I have to research the UJT curves and see if I can fit a parametric
>equation.
>
> ...Jim Thompson
But I did just check PS currents. Dandy match to load current _UNTIL_
railing, then bizarro... giga-amps >:-}
I think they don't check their modeling work there at Analog
Devices... just sling shit together. Studying their OpAmp models, it
appears to be just a fill-in-the-blanks netlist :-(
...Jim Thompson
--
| James E.Thompson | mens |
| Analog Innovations | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| San Tan Valley, AZ 85142 Skype: Contacts Only | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food.
Reply by Jim Thompson●September 19, 20132013-09-19
On Thu, 19 Sep 2013 05:18:26 +0000 (UTC), Don Kuenz
<garbage@crcomp.net> wrote:
>Jim Thompson <To-Email-Use-The-Envelope-Icon@on-my-web-site.com> wrote:
>> On Sat, 14 Sep 2013 02:19:16 +0000 (UTC), Don Kuenz
>> <garbage@crcomp.net> wrote:
>>
>>>Jim Thompson <To-Email-Use-The-Envelope-Icon@on-my-web-site.com> wrote:
>>>> On Wed, 11 Sep 2013 09:14:33 -0700, Jim Thompson
>>>> <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:
>>>>
>>>>>On Wed, 11 Sep 2013 08:55:33 -0700, RobertMacy
>>>>><robert.a.macy@gmail.com> wrote:
>>>>>
>>>>>>On Wed, 11 Sep 2013 08:38:57 -0700, Jim Thompson
>>>>>><To-Email-Use-The-Envelope-Icon@on-my-web-site.com> wrote:
>>>>>>
>>>>>>> On Wed, 11 Sep 2013 07:13:46 -0700, RobertMacy
>>>>>>> <robert.a.macy@gmail.com> wrote:
>>>>>>>
>>>>>>>> ..snip...
>>>>>>>>
>>>>>>>> Did you look through the 100+MB of Alex Bordodynov's models?
>>>>>>>>
>>>>>>>> I only could download one set, not the larger set, so couldn't peruse.
>>>>>>>
>>>>>>> I've seen that name on the LTspice list. Do you have a link to his
>>>>>>> site?
>>>>>>>
>>>>>>> ...snip...
>>>>>>>
>>>>>>> ...Jim Thompson
>>>>>>
>>>>>>His models usually are accurate and have conversion speed enhancements. He
>>>>>>supplied two links, circa July 5, 2013, posted to the LTspice group, which
>>>>>>I trashed after downloading each. Big mistake!
>>>>>>
>>>>>>LTspiceIV.zip is 37MB of 'tiny' little .asc files so you have an idea how
>>>>>>many models are in there.
>>>>>>LTSPICE.DOC is 67MB and dialup download took HOURS!!! only to find out
>>>>>>today that when unzipping, comes up 'corrupted' download again!
>>>>>>
>>>>>
>>>>>Thanks. That will allow me to find it. As you know, I keep a record
>>>>>of everything... even an LTspice list directory "Pre_2013" ;-)
>>>>>
>>>>>Found it. How do I download, it's all in Russian, and I can't get the
>>>>>download to start :-(
>>>>>
>>>>> ...Jim Thompson
>>>>
>>>> Here you go...
>>>>
>>>> <http://us.ua/1162032/>
>>>>
>>>> Kill the pop-up on the lower left, then you can download.
>>>
>>>Thank you for sharing Jim. Here's a more Anglo friendly link.
>>>
>>>http://ltwiki.org/index.php5?title=Components_Library_and_Circuits
>>
>> Here's something to fret over, compare Unijunction models, wonder
>> which is real...
>>
>> <http://www.analog-innovations.com/SED/CompareUnijunctionModels.pdf>
>
>None of the above accurately models the DC component when a 2N4870 is
>used in the test circuit. The measured 2N4870 DC excursion is from about
>-1V to about +0.25V (IIRC). The 2N2646 in THYRYSTR.LIB comes closest to
>the AC component, except the observed peaks are much flatter, which
>makes the waveform look like a pulse with about a 90% duty cycle.
>
>Bordodynov keeps his 2N2646 in a file named Ujt&Put.lib. I may fiddle
>with this obsolete technology a bit more for the sake of delving deeper
>into SPICE modeling. Is the Common 2 Transistor Model worth describing?
The common two-transistor version models PUT's quite well,
I have to research the UJT curves and see if I can fit a parametric
equation.
...Jim Thompson
--
| James E.Thompson | mens |
| Analog Innovations | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| San Tan Valley, AZ 85142 Skype: Contacts Only | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food.
Reply by Don Kuenz●September 19, 20132013-09-19
Jim Thompson <To-Email-Use-The-Envelope-Icon@on-my-web-site.com> wrote:
> On Sat, 14 Sep 2013 02:19:16 +0000 (UTC), Don Kuenz
> <garbage@crcomp.net> wrote:
>
>>Jim Thompson <To-Email-Use-The-Envelope-Icon@on-my-web-site.com> wrote:
>>> On Wed, 11 Sep 2013 09:14:33 -0700, Jim Thompson
>>> <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:
>>>
>>>>On Wed, 11 Sep 2013 08:55:33 -0700, RobertMacy
>>>><robert.a.macy@gmail.com> wrote:
>>>>
>>>>>On Wed, 11 Sep 2013 08:38:57 -0700, Jim Thompson
>>>>><To-Email-Use-The-Envelope-Icon@on-my-web-site.com> wrote:
>>>>>
>>>>>> On Wed, 11 Sep 2013 07:13:46 -0700, RobertMacy
>>>>>> <robert.a.macy@gmail.com> wrote:
>>>>>>
>>>>>>> ..snip...
>>>>>>>
>>>>>>> Did you look through the 100+MB of Alex Bordodynov's models?
>>>>>>>
>>>>>>> I only could download one set, not the larger set, so couldn't peruse.
>>>>>>
>>>>>> I've seen that name on the LTspice list. Do you have a link to his
>>>>>> site?
>>>>>>
>>>>>> ...snip...
>>>>>>
>>>>>> ...Jim Thompson
>>>>>
>>>>>His models usually are accurate and have conversion speed enhancements. He
>>>>>supplied two links, circa July 5, 2013, posted to the LTspice group, which
>>>>>I trashed after downloading each. Big mistake!
>>>>>
>>>>>LTspiceIV.zip is 37MB of 'tiny' little .asc files so you have an idea how
>>>>>many models are in there.
>>>>>LTSPICE.DOC is 67MB and dialup download took HOURS!!! only to find out
>>>>>today that when unzipping, comes up 'corrupted' download again!
>>>>>
>>>>
>>>>Thanks. That will allow me to find it. As you know, I keep a record
>>>>of everything... even an LTspice list directory "Pre_2013" ;-)
>>>>
>>>>Found it. How do I download, it's all in Russian, and I can't get the
>>>>download to start :-(
>>>>
>>>> ...Jim Thompson
>>>
>>> Here you go...
>>>
>>> <http://us.ua/1162032/>
>>>
>>> Kill the pop-up on the lower left, then you can download.
>>
>>Thank you for sharing Jim. Here's a more Anglo friendly link.
>>
>>http://ltwiki.org/index.php5?title=Components_Library_and_Circuits
>
> Here's something to fret over, compare Unijunction models, wonder
> which is real...
>
> <http://www.analog-innovations.com/SED/CompareUnijunctionModels.pdf>
None of the above accurately models the DC component when a 2N4870 is
used in the test circuit. The measured 2N4870 DC excursion is from about
-1V to about +0.25V (IIRC). The 2N2646 in THYRYSTR.LIB comes closest to
the AC component, except the observed peaks are much flatter, which
makes the waveform look like a pulse with about a 90% duty cycle.
Bordodynov keeps his 2N2646 in a file named Ujt&Put.lib. I may fiddle
with this obsolete technology a bit more for the sake of delving deeper
into SPICE modeling. Is the Common 2 Transistor Model worth describing?
--
Don Kuenz
Reply by Don Kuenz●September 14, 20132013-09-14
Jim Thompson <To-Email-Use-The-Envelope-Icon@on-my-web-site.com> wrote:
> On Sat, 14 Sep 2013 14:50:28 -0400, Phil Hobbs
> <pcdhSpamMeSenseless@electrooptical.net> wrote:
>>IIRC the gate is opposite polarity to an SCR, but then it's over 15
>>years since I used one.
>>
>>Cheers
>>
>>Phil Hobbs
>
> Exactly! I don't what they're good for in modern day electronics, but
> it's been an amusing exercise in deciphering the Spice model.
In my case, the absence of UJT model gives me a decent excuse for
delving deeper into LTSpice. My UJT forms a relaxation oscillator in
hardware designed during the early 1970s. It's my understanding that the
relaxation oscillator was a classic UJT application for that era, but
others know best.
Thank you again Jim for sharing all of your Spice data both in this
thread and other threads. :)
--
Don Kuenz
Reply by Jim Thompson●September 14, 20132013-09-14
>On Sat, 14 Sep 2013 12:09:33 -0700, the renowned Jim Thompson
><To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:
>
>>On Sat, 14 Sep 2013 14:50:28 -0400, Phil Hobbs
>><pcdhSpamMeSenseless@electrooptical.net> wrote:
>>
>>>On 9/14/2013 2:24 PM, Jim Thompson wrote:
>>>> On Sat, 14 Sep 2013 09:40:34 -0700, Jim Thompson
>>>> <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:
>>>>
>>>>> On Sat, 14 Sep 2013 12:30:02 -0400, Phil Hobbs
>>>>> <pcdhSpamMeSenseless@electrooptical.net> wrote:
>>>>>
>>>>>> On 9/14/2013 12:15 PM, Jim Thompson wrote:
>>>>>>> On Sat, 14 Sep 2013 02:19:16 +0000 (UTC), Don Kuenz
>>>>>>> <garbage@crcomp.net> wrote:
>>>>>>>
>>>>>>>> Jim Thompson <To-Email-Use-The-Envelope-Icon@on-my-web-site.com> wrote:
>>>>>>>>> On Wed, 11 Sep 2013 09:14:33 -0700, Jim Thompson
>>>>>>>>> <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:
>>>>>>>>>
>>>>>>>>>> On Wed, 11 Sep 2013 08:55:33 -0700, RobertMacy
>>>>>>>>>> <robert.a.macy@gmail.com> wrote:
>>>>>>>>>>
>>>>>>>>>>> On Wed, 11 Sep 2013 08:38:57 -0700, Jim Thompson
>>>>>>>>>>> <To-Email-Use-The-Envelope-Icon@on-my-web-site.com> wrote:
>>>>>>>>>>>
>>>>>>>>>>>> On Wed, 11 Sep 2013 07:13:46 -0700, RobertMacy
>>>>>>>>>>>> <robert.a.macy@gmail.com> wrote:
>>>>>>>>>>>>
>>>>>>>>>>>>> ..snip...
>>>>>>>>>>>>>
>>>>>>>>>>>>> Did you look through the 100+MB of Alex Bordodynov's models?
>>>>>>>>>>>>>
>>>>>>>>>>>>> I only could download one set, not the larger set, so couldn't peruse.
>>>>>>>>>>>>
>>>>>>>>>>>> I've seen that name on the LTspice list. Do you have a link to his
>>>>>>>>>>>> site?
>>>>>>>>>>>>
>>>>>>>>>>>> ...snip...
>>>>>>>>>>>>
>>>>>>>>>>>> ...Jim Thompson
>>>>>>>>>>>
>>>>>>>>>>> His models usually are accurate and have conversion speed enhancements. He
>>>>>>>>>>> supplied two links, circa July 5, 2013, posted to the LTspice group, which
>>>>>>>>>>> I trashed after downloading each. Big mistake!
>>>>>>>>>>>
>>>>>>>>>>> LTspiceIV.zip is 37MB of 'tiny' little .asc files so you have an idea how
>>>>>>>>>>> many models are in there.
>>>>>>>>>>> LTSPICE.DOC is 67MB and dialup download took HOURS!!! only to find out
>>>>>>>>>>> today that when unzipping, comes up 'corrupted' download again!
>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> Thanks. That will allow me to find it. As you know, I keep a record
>>>>>>>>>> of everything... even an LTspice list directory "Pre_2013" ;-)
>>>>>>>>>>
>>>>>>>>>> Found it. How do I download, it's all in Russian, and I can't get the
>>>>>>>>>> download to start :-(
>>>>>>>>>>
>>>>>>>>>> ...Jim Thompson
>>>>>>>>>
>>>>>>>>> Here you go...
>>>>>>>>>
>>>>>>>>> <http://us.ua/1162032/>
>>>>>>>>>
>>>>>>>>> Kill the pop-up on the lower left, then you can download.
>>>>>>>>
>>>>>>>> Thank you for sharing Jim. Here's a more Anglo friendly link.
>>>>>>>>
>>>>>>>> http://ltwiki.org/index.php5?title=Components_Library_and_Circuits
>>>>>>>
>>>>>>> Here's something to fret over, compare Unijunction models, wonder
>>>>>>> which is real...
>>>>>>>
>>>>>>> <http://www.analog-innovations.com/SED/CompareUnijunctionModels.pdf>
>>>>>>>
>>>>>>> ...Jim Thompson
>>>>>>>
>>>>>>
>>>>>>
>>>>>> Probably neither--this is SPICE we're talking about. ;0
>>>>>>
>>>>>> I've used PUTs (2N6028) in laser interlocks, where I needed to be sure
>>>>>> that there wouldn't be any weird behaviour on power-up or with transients.
>>>>>>
>>>>>> BTW kudos for working to pass stuff along to the next generation. Now
>>>>>> all you have to do is start writing for real.
>>>>>>
>>>>>> Cheers
>>>>>>
>>>>>> Phil Hobbs
>>>>>
>>>>> I suspect the MicroSim/Motorola/THYRYSTR.lib is pretty close. It's
>>>>> certainly complex enough ;-)
>>>>>
>>>>> ...Jim Thompson
>>>>
>>>> After some more head-scratching, and dumping the ancient single
>>>> junction (Unijunction) device and looking only at the "PUT" (4-layer
>>>> device), the _only_ two transistor model makes sense...
>>>>
>>>> *Programmable Unijunction Transistor pkg: TO-226AA, Don Kuenz
>>>> * .SUBCKT 2N6027DK 1 2 3
>>>> .SUBCKT 2N6027DK 2 1 3 ; B2 E B1
>>>> ************** K1 G K2
>>>> Q1 2 4 3 NMOD
>>>> Q2 4 2 1 PMOD
>>>> .MODEL NMOD NPN(IS=5E-15 VAF=100 IKF=0.005 ISE=1.85E-12 NE=1.45
>>>> + RB=10 RE=0.5 RC=0.5 CJE=3.5E-11 VJE=0.75 CJC=1.1E-11 VJC=0.75
>>>> TR=4.76E-8
>>>> + TF=16N VJS=0.75 )
>>>> .MODEL PMOD PNP(IS=2E-15 VAF=100 IKF=0.005 ISE=1.9E-12 RB=10 RE=0.5
>>>> + RC=0.5 CJE=3.5E-11 VJE=0.75 TF=1.6E-8 CJC=1.1E-11 VJC=0.75 TR=5.1E-8
>>>> + TF=16N VJS=0.75 )
>>>> .ENDS 2N6027DK
>>>>
>>>> What caught my eye was unusually low IKF (50x smaller than a 2N2222)
>>>> for a discrete bipolar device... and unusually high ISE (10x that of a
>>>> 2N2222).
>>>>
>>>> My bet is I will be able to relate those parameters to peak, valley
>>>> and hold-off currents.
>>>>
>>>> So a "PUT" amounts to a special case of an SCR structure
>>>>
>>>> Fun stuff!.
>>>>
>>>> ...Jim Thompson
>>>>
>>>
>>>IIRC the gate is opposite polarity to an SCR, but then it's over 15
>>>years since I used one.
>>>
>>>Cheers
>>>
>>>Phil Hobbs
>>
>>Exactly! I don't what they're good for in modern day electronics, but
>>it's been an amusing exercise in deciphering the Spice model.
>>
>> ...Jim Thompson
>
>Reverse breakdown rating of the gate-anode is also much higher in a
>PUT compared to an SCR gate-cathode (eg. +40V vs. -5V)
>
>
>Best regards,
>Spehro Pefhany
I gathered that from the IKF/ISE numbers.
...Jim Thompson
--
| James E.Thompson | mens |
| Analog Innovations | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| San Tan Valley, AZ 85142 Skype: Contacts Only | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food.
Reply by Spehro Pefhany●September 14, 20132013-09-14
On Sat, 14 Sep 2013 12:09:33 -0700, the renowned Jim Thompson
<To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:
>On Sat, 14 Sep 2013 14:50:28 -0400, Phil Hobbs
><pcdhSpamMeSenseless@electrooptical.net> wrote:
>
>>On 9/14/2013 2:24 PM, Jim Thompson wrote:
>>> On Sat, 14 Sep 2013 09:40:34 -0700, Jim Thompson
>>> <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:
>>>
>>>> On Sat, 14 Sep 2013 12:30:02 -0400, Phil Hobbs
>>>> <pcdhSpamMeSenseless@electrooptical.net> wrote:
>>>>
>>>>> On 9/14/2013 12:15 PM, Jim Thompson wrote:
>>>>>> On Sat, 14 Sep 2013 02:19:16 +0000 (UTC), Don Kuenz
>>>>>> <garbage@crcomp.net> wrote:
>>>>>>
>>>>>>> Jim Thompson <To-Email-Use-The-Envelope-Icon@on-my-web-site.com> wrote:
>>>>>>>> On Wed, 11 Sep 2013 09:14:33 -0700, Jim Thompson
>>>>>>>> <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:
>>>>>>>>
>>>>>>>>> On Wed, 11 Sep 2013 08:55:33 -0700, RobertMacy
>>>>>>>>> <robert.a.macy@gmail.com> wrote:
>>>>>>>>>
>>>>>>>>>> On Wed, 11 Sep 2013 08:38:57 -0700, Jim Thompson
>>>>>>>>>> <To-Email-Use-The-Envelope-Icon@on-my-web-site.com> wrote:
>>>>>>>>>>
>>>>>>>>>>> On Wed, 11 Sep 2013 07:13:46 -0700, RobertMacy
>>>>>>>>>>> <robert.a.macy@gmail.com> wrote:
>>>>>>>>>>>
>>>>>>>>>>>> ..snip...
>>>>>>>>>>>>
>>>>>>>>>>>> Did you look through the 100+MB of Alex Bordodynov's models?
>>>>>>>>>>>>
>>>>>>>>>>>> I only could download one set, not the larger set, so couldn't peruse.
>>>>>>>>>>>
>>>>>>>>>>> I've seen that name on the LTspice list. Do you have a link to his
>>>>>>>>>>> site?
>>>>>>>>>>>
>>>>>>>>>>> ...snip...
>>>>>>>>>>>
>>>>>>>>>>> ...Jim Thompson
>>>>>>>>>>
>>>>>>>>>> His models usually are accurate and have conversion speed enhancements. He
>>>>>>>>>> supplied two links, circa July 5, 2013, posted to the LTspice group, which
>>>>>>>>>> I trashed after downloading each. Big mistake!
>>>>>>>>>>
>>>>>>>>>> LTspiceIV.zip is 37MB of 'tiny' little .asc files so you have an idea how
>>>>>>>>>> many models are in there.
>>>>>>>>>> LTSPICE.DOC is 67MB and dialup download took HOURS!!! only to find out
>>>>>>>>>> today that when unzipping, comes up 'corrupted' download again!
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Thanks. That will allow me to find it. As you know, I keep a record
>>>>>>>>> of everything... even an LTspice list directory "Pre_2013" ;-)
>>>>>>>>>
>>>>>>>>> Found it. How do I download, it's all in Russian, and I can't get the
>>>>>>>>> download to start :-(
>>>>>>>>>
>>>>>>>>> ...Jim Thompson
>>>>>>>>
>>>>>>>> Here you go...
>>>>>>>>
>>>>>>>> <http://us.ua/1162032/>
>>>>>>>>
>>>>>>>> Kill the pop-up on the lower left, then you can download.
>>>>>>>
>>>>>>> Thank you for sharing Jim. Here's a more Anglo friendly link.
>>>>>>>
>>>>>>> http://ltwiki.org/index.php5?title=Components_Library_and_Circuits
>>>>>>
>>>>>> Here's something to fret over, compare Unijunction models, wonder
>>>>>> which is real...
>>>>>>
>>>>>> <http://www.analog-innovations.com/SED/CompareUnijunctionModels.pdf>
>>>>>>
>>>>>> ...Jim Thompson
>>>>>>
>>>>>
>>>>>
>>>>> Probably neither--this is SPICE we're talking about. ;0
>>>>>
>>>>> I've used PUTs (2N6028) in laser interlocks, where I needed to be sure
>>>>> that there wouldn't be any weird behaviour on power-up or with transients.
>>>>>
>>>>> BTW kudos for working to pass stuff along to the next generation. Now
>>>>> all you have to do is start writing for real.
>>>>>
>>>>> Cheers
>>>>>
>>>>> Phil Hobbs
>>>>
>>>> I suspect the MicroSim/Motorola/THYRYSTR.lib is pretty close. It's
>>>> certainly complex enough ;-)
>>>>
>>>> ...Jim Thompson
>>>
>>> After some more head-scratching, and dumping the ancient single
>>> junction (Unijunction) device and looking only at the "PUT" (4-layer
>>> device), the _only_ two transistor model makes sense...
>>>
>>> *Programmable Unijunction Transistor pkg: TO-226AA, Don Kuenz
>>> * .SUBCKT 2N6027DK 1 2 3
>>> .SUBCKT 2N6027DK 2 1 3 ; B2 E B1
>>> ************** K1 G K2
>>> Q1 2 4 3 NMOD
>>> Q2 4 2 1 PMOD
>>> .MODEL NMOD NPN(IS=5E-15 VAF=100 IKF=0.005 ISE=1.85E-12 NE=1.45
>>> + RB=10 RE=0.5 RC=0.5 CJE=3.5E-11 VJE=0.75 CJC=1.1E-11 VJC=0.75
>>> TR=4.76E-8
>>> + TF=16N VJS=0.75 )
>>> .MODEL PMOD PNP(IS=2E-15 VAF=100 IKF=0.005 ISE=1.9E-12 RB=10 RE=0.5
>>> + RC=0.5 CJE=3.5E-11 VJE=0.75 TF=1.6E-8 CJC=1.1E-11 VJC=0.75 TR=5.1E-8
>>> + TF=16N VJS=0.75 )
>>> .ENDS 2N6027DK
>>>
>>> What caught my eye was unusually low IKF (50x smaller than a 2N2222)
>>> for a discrete bipolar device... and unusually high ISE (10x that of a
>>> 2N2222).
>>>
>>> My bet is I will be able to relate those parameters to peak, valley
>>> and hold-off currents.
>>>
>>> So a "PUT" amounts to a special case of an SCR structure
>>>
>>> Fun stuff!.
>>>
>>> ...Jim Thompson
>>>
>>
>>IIRC the gate is opposite polarity to an SCR, but then it's over 15
>>years since I used one.
>>
>>Cheers
>>
>>Phil Hobbs
>
>Exactly! I don't what they're good for in modern day electronics, but
>it's been an amusing exercise in deciphering the Spice model.
>
> ...Jim Thompson
Reverse breakdown rating of the gate-anode is also much higher in a
PUT compared to an SCR gate-cathode (eg. +40V vs. -5V)
Best regards,
Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
speff@interlog.com Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog Info for designers: http://www.speff.com
Reply by Jim Thompson●September 14, 20132013-09-14
On Sat, 14 Sep 2013 14:50:28 -0400, Phil Hobbs
<pcdhSpamMeSenseless@electrooptical.net> wrote:
>On 9/14/2013 2:24 PM, Jim Thompson wrote:
>> On Sat, 14 Sep 2013 09:40:34 -0700, Jim Thompson
>> <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:
>>
>>> On Sat, 14 Sep 2013 12:30:02 -0400, Phil Hobbs
>>> <pcdhSpamMeSenseless@electrooptical.net> wrote:
>>>
>>>> On 9/14/2013 12:15 PM, Jim Thompson wrote:
>>>>> On Sat, 14 Sep 2013 02:19:16 +0000 (UTC), Don Kuenz
>>>>> <garbage@crcomp.net> wrote:
>>>>>
>>>>>> Jim Thompson <To-Email-Use-The-Envelope-Icon@on-my-web-site.com> wrote:
>>>>>>> On Wed, 11 Sep 2013 09:14:33 -0700, Jim Thompson
>>>>>>> <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:
>>>>>>>
>>>>>>>> On Wed, 11 Sep 2013 08:55:33 -0700, RobertMacy
>>>>>>>> <robert.a.macy@gmail.com> wrote:
>>>>>>>>
>>>>>>>>> On Wed, 11 Sep 2013 08:38:57 -0700, Jim Thompson
>>>>>>>>> <To-Email-Use-The-Envelope-Icon@on-my-web-site.com> wrote:
>>>>>>>>>
>>>>>>>>>> On Wed, 11 Sep 2013 07:13:46 -0700, RobertMacy
>>>>>>>>>> <robert.a.macy@gmail.com> wrote:
>>>>>>>>>>
>>>>>>>>>>> ..snip...
>>>>>>>>>>>
>>>>>>>>>>> Did you look through the 100+MB of Alex Bordodynov's models?
>>>>>>>>>>>
>>>>>>>>>>> I only could download one set, not the larger set, so couldn't peruse.
>>>>>>>>>>
>>>>>>>>>> I've seen that name on the LTspice list. Do you have a link to his
>>>>>>>>>> site?
>>>>>>>>>>
>>>>>>>>>> ...snip...
>>>>>>>>>>
>>>>>>>>>> ...Jim Thompson
>>>>>>>>>
>>>>>>>>> His models usually are accurate and have conversion speed enhancements. He
>>>>>>>>> supplied two links, circa July 5, 2013, posted to the LTspice group, which
>>>>>>>>> I trashed after downloading each. Big mistake!
>>>>>>>>>
>>>>>>>>> LTspiceIV.zip is 37MB of 'tiny' little .asc files so you have an idea how
>>>>>>>>> many models are in there.
>>>>>>>>> LTSPICE.DOC is 67MB and dialup download took HOURS!!! only to find out
>>>>>>>>> today that when unzipping, comes up 'corrupted' download again!
>>>>>>>>>
>>>>>>>>
>>>>>>>> Thanks. That will allow me to find it. As you know, I keep a record
>>>>>>>> of everything... even an LTspice list directory "Pre_2013" ;-)
>>>>>>>>
>>>>>>>> Found it. How do I download, it's all in Russian, and I can't get the
>>>>>>>> download to start :-(
>>>>>>>>
>>>>>>>> ...Jim Thompson
>>>>>>>
>>>>>>> Here you go...
>>>>>>>
>>>>>>> <http://us.ua/1162032/>
>>>>>>>
>>>>>>> Kill the pop-up on the lower left, then you can download.
>>>>>>
>>>>>> Thank you for sharing Jim. Here's a more Anglo friendly link.
>>>>>>
>>>>>> http://ltwiki.org/index.php5?title=Components_Library_and_Circuits
>>>>>
>>>>> Here's something to fret over, compare Unijunction models, wonder
>>>>> which is real...
>>>>>
>>>>> <http://www.analog-innovations.com/SED/CompareUnijunctionModels.pdf>
>>>>>
>>>>> ...Jim Thompson
>>>>>
>>>>
>>>>
>>>> Probably neither--this is SPICE we're talking about. ;0
>>>>
>>>> I've used PUTs (2N6028) in laser interlocks, where I needed to be sure
>>>> that there wouldn't be any weird behaviour on power-up or with transients.
>>>>
>>>> BTW kudos for working to pass stuff along to the next generation. Now
>>>> all you have to do is start writing for real.
>>>>
>>>> Cheers
>>>>
>>>> Phil Hobbs
>>>
>>> I suspect the MicroSim/Motorola/THYRYSTR.lib is pretty close. It's
>>> certainly complex enough ;-)
>>>
>>> ...Jim Thompson
>>
>> After some more head-scratching, and dumping the ancient single
>> junction (Unijunction) device and looking only at the "PUT" (4-layer
>> device), the _only_ two transistor model makes sense...
>>
>> *Programmable Unijunction Transistor pkg: TO-226AA, Don Kuenz
>> * .SUBCKT 2N6027DK 1 2 3
>> .SUBCKT 2N6027DK 2 1 3 ; B2 E B1
>> ************** K1 G K2
>> Q1 2 4 3 NMOD
>> Q2 4 2 1 PMOD
>> .MODEL NMOD NPN(IS=5E-15 VAF=100 IKF=0.005 ISE=1.85E-12 NE=1.45
>> + RB=10 RE=0.5 RC=0.5 CJE=3.5E-11 VJE=0.75 CJC=1.1E-11 VJC=0.75
>> TR=4.76E-8
>> + TF=16N VJS=0.75 )
>> .MODEL PMOD PNP(IS=2E-15 VAF=100 IKF=0.005 ISE=1.9E-12 RB=10 RE=0.5
>> + RC=0.5 CJE=3.5E-11 VJE=0.75 TF=1.6E-8 CJC=1.1E-11 VJC=0.75 TR=5.1E-8
>> + TF=16N VJS=0.75 )
>> .ENDS 2N6027DK
>>
>> What caught my eye was unusually low IKF (50x smaller than a 2N2222)
>> for a discrete bipolar device... and unusually high ISE (10x that of a
>> 2N2222).
>>
>> My bet is I will be able to relate those parameters to peak, valley
>> and hold-off currents.
>>
>> So a "PUT" amounts to a special case of an SCR structure
>>
>> Fun stuff!.
>>
>> ...Jim Thompson
>>
>
>IIRC the gate is opposite polarity to an SCR, but then it's over 15
>years since I used one.
>
>Cheers
>
>Phil Hobbs
Exactly! I don't what they're good for in modern day electronics, but
it's been an amusing exercise in deciphering the Spice model.
...Jim Thompson
--
| James E.Thompson | mens |
| Analog Innovations | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| San Tan Valley, AZ 85142 Skype: Contacts Only | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food.
Reply by Phil Hobbs●September 14, 20132013-09-14
On 9/14/2013 2:24 PM, Jim Thompson wrote:
> On Sat, 14 Sep 2013 09:40:34 -0700, Jim Thompson
> <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:
>
>> On Sat, 14 Sep 2013 12:30:02 -0400, Phil Hobbs
>> <pcdhSpamMeSenseless@electrooptical.net> wrote:
>>
>>> On 9/14/2013 12:15 PM, Jim Thompson wrote:
>>>> On Sat, 14 Sep 2013 02:19:16 +0000 (UTC), Don Kuenz
>>>> <garbage@crcomp.net> wrote:
>>>>
>>>>> Jim Thompson <To-Email-Use-The-Envelope-Icon@on-my-web-site.com> wrote:
>>>>>> On Wed, 11 Sep 2013 09:14:33 -0700, Jim Thompson
>>>>>> <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:
>>>>>>
>>>>>>> On Wed, 11 Sep 2013 08:55:33 -0700, RobertMacy
>>>>>>> <robert.a.macy@gmail.com> wrote:
>>>>>>>
>>>>>>>> On Wed, 11 Sep 2013 08:38:57 -0700, Jim Thompson
>>>>>>>> <To-Email-Use-The-Envelope-Icon@on-my-web-site.com> wrote:
>>>>>>>>
>>>>>>>>> On Wed, 11 Sep 2013 07:13:46 -0700, RobertMacy
>>>>>>>>> <robert.a.macy@gmail.com> wrote:
>>>>>>>>>
>>>>>>>>>> ..snip...
>>>>>>>>>>
>>>>>>>>>> Did you look through the 100+MB of Alex Bordodynov's models?
>>>>>>>>>>
>>>>>>>>>> I only could download one set, not the larger set, so couldn't peruse.
>>>>>>>>>
>>>>>>>>> I've seen that name on the LTspice list. Do you have a link to his
>>>>>>>>> site?
>>>>>>>>>
>>>>>>>>> ...snip...
>>>>>>>>>
>>>>>>>>> ...Jim Thompson
>>>>>>>>
>>>>>>>> His models usually are accurate and have conversion speed enhancements. He
>>>>>>>> supplied two links, circa July 5, 2013, posted to the LTspice group, which
>>>>>>>> I trashed after downloading each. Big mistake!
>>>>>>>>
>>>>>>>> LTspiceIV.zip is 37MB of 'tiny' little .asc files so you have an idea how
>>>>>>>> many models are in there.
>>>>>>>> LTSPICE.DOC is 67MB and dialup download took HOURS!!! only to find out
>>>>>>>> today that when unzipping, comes up 'corrupted' download again!
>>>>>>>>
>>>>>>>
>>>>>>> Thanks. That will allow me to find it. As you know, I keep a record
>>>>>>> of everything... even an LTspice list directory "Pre_2013" ;-)
>>>>>>>
>>>>>>> Found it. How do I download, it's all in Russian, and I can't get the
>>>>>>> download to start :-(
>>>>>>>
>>>>>>> ...Jim Thompson
>>>>>>
>>>>>> Here you go...
>>>>>>
>>>>>> <http://us.ua/1162032/>
>>>>>>
>>>>>> Kill the pop-up on the lower left, then you can download.
>>>>>
>>>>> Thank you for sharing Jim. Here's a more Anglo friendly link.
>>>>>
>>>>> http://ltwiki.org/index.php5?title=Components_Library_and_Circuits
>>>>
>>>> Here's something to fret over, compare Unijunction models, wonder
>>>> which is real...
>>>>
>>>> <http://www.analog-innovations.com/SED/CompareUnijunctionModels.pdf>
>>>>
>>>> ...Jim Thompson
>>>>
>>>
>>>
>>> Probably neither--this is SPICE we're talking about. ;0
>>>
>>> I've used PUTs (2N6028) in laser interlocks, where I needed to be sure
>>> that there wouldn't be any weird behaviour on power-up or with transients.
>>>
>>> BTW kudos for working to pass stuff along to the next generation. Now
>>> all you have to do is start writing for real.
>>>
>>> Cheers
>>>
>>> Phil Hobbs
>>
>> I suspect the MicroSim/Motorola/THYRYSTR.lib is pretty close. It's
>> certainly complex enough ;-)
>>
>> ...Jim Thompson
>
> After some more head-scratching, and dumping the ancient single
> junction (Unijunction) device and looking only at the "PUT" (4-layer
> device), the _only_ two transistor model makes sense...
>
> *Programmable Unijunction Transistor pkg: TO-226AA, Don Kuenz
> * .SUBCKT 2N6027DK 1 2 3
> .SUBCKT 2N6027DK 2 1 3 ; B2 E B1
> ************** K1 G K2
> Q1 2 4 3 NMOD
> Q2 4 2 1 PMOD
> .MODEL NMOD NPN(IS=5E-15 VAF=100 IKF=0.005 ISE=1.85E-12 NE=1.45
> + RB=10 RE=0.5 RC=0.5 CJE=3.5E-11 VJE=0.75 CJC=1.1E-11 VJC=0.75
> TR=4.76E-8
> + TF=16N VJS=0.75 )
> .MODEL PMOD PNP(IS=2E-15 VAF=100 IKF=0.005 ISE=1.9E-12 RB=10 RE=0.5
> + RC=0.5 CJE=3.5E-11 VJE=0.75 TF=1.6E-8 CJC=1.1E-11 VJC=0.75 TR=5.1E-8
> + TF=16N VJS=0.75 )
> .ENDS 2N6027DK
>
> What caught my eye was unusually low IKF (50x smaller than a 2N2222)
> for a discrete bipolar device... and unusually high ISE (10x that of a
> 2N2222).
>
> My bet is I will be able to relate those parameters to peak, valley
> and hold-off currents.
>
> So a "PUT" amounts to a special case of an SCR structure
>
> Fun stuff!.
>
> ...Jim Thompson
>
IIRC the gate is opposite polarity to an SCR, but then it's over 15
years since I used one.
Cheers
Phil Hobbs
--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC
Optics, Electro-optics, Photonics, Analog Electronics
160 North State Road #203
Briarcliff Manor NY 10510 USA
+1 845 480 2058
hobbs at electrooptical dot net
http://electrooptical.net
Reply by Jim Thompson●September 14, 20132013-09-14
On Sat, 14 Sep 2013 09:40:34 -0700, Jim Thompson
<To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:
>On Sat, 14 Sep 2013 12:30:02 -0400, Phil Hobbs
><pcdhSpamMeSenseless@electrooptical.net> wrote:
>
>>On 9/14/2013 12:15 PM, Jim Thompson wrote:
>>> On Sat, 14 Sep 2013 02:19:16 +0000 (UTC), Don Kuenz
>>> <garbage@crcomp.net> wrote:
>>>
>>>> Jim Thompson <To-Email-Use-The-Envelope-Icon@on-my-web-site.com> wrote:
>>>>> On Wed, 11 Sep 2013 09:14:33 -0700, Jim Thompson
>>>>> <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:
>>>>>
>>>>>> On Wed, 11 Sep 2013 08:55:33 -0700, RobertMacy
>>>>>> <robert.a.macy@gmail.com> wrote:
>>>>>>
>>>>>>> On Wed, 11 Sep 2013 08:38:57 -0700, Jim Thompson
>>>>>>> <To-Email-Use-The-Envelope-Icon@on-my-web-site.com> wrote:
>>>>>>>
>>>>>>>> On Wed, 11 Sep 2013 07:13:46 -0700, RobertMacy
>>>>>>>> <robert.a.macy@gmail.com> wrote:
>>>>>>>>
>>>>>>>>> ..snip...
>>>>>>>>>
>>>>>>>>> Did you look through the 100+MB of Alex Bordodynov's models?
>>>>>>>>>
>>>>>>>>> I only could download one set, not the larger set, so couldn't peruse.
>>>>>>>>
>>>>>>>> I've seen that name on the LTspice list. Do you have a link to his
>>>>>>>> site?
>>>>>>>>
>>>>>>>> ...snip...
>>>>>>>>
>>>>>>>> ...Jim Thompson
>>>>>>>
>>>>>>> His models usually are accurate and have conversion speed enhancements. He
>>>>>>> supplied two links, circa July 5, 2013, posted to the LTspice group, which
>>>>>>> I trashed after downloading each. Big mistake!
>>>>>>>
>>>>>>> LTspiceIV.zip is 37MB of 'tiny' little .asc files so you have an idea how
>>>>>>> many models are in there.
>>>>>>> LTSPICE.DOC is 67MB and dialup download took HOURS!!! only to find out
>>>>>>> today that when unzipping, comes up 'corrupted' download again!
>>>>>>>
>>>>>>
>>>>>> Thanks. That will allow me to find it. As you know, I keep a record
>>>>>> of everything... even an LTspice list directory "Pre_2013" ;-)
>>>>>>
>>>>>> Found it. How do I download, it's all in Russian, and I can't get the
>>>>>> download to start :-(
>>>>>>
>>>>>> ...Jim Thompson
>>>>>
>>>>> Here you go...
>>>>>
>>>>> <http://us.ua/1162032/>
>>>>>
>>>>> Kill the pop-up on the lower left, then you can download.
>>>>
>>>> Thank you for sharing Jim. Here's a more Anglo friendly link.
>>>>
>>>> http://ltwiki.org/index.php5?title=Components_Library_and_Circuits
>>>
>>> Here's something to fret over, compare Unijunction models, wonder
>>> which is real...
>>>
>>> <http://www.analog-innovations.com/SED/CompareUnijunctionModels.pdf>
>>>
>>> ...Jim Thompson
>>>
>>
>>
>>Probably neither--this is SPICE we're talking about. ;0
>>
>>I've used PUTs (2N6028) in laser interlocks, where I needed to be sure
>>that there wouldn't be any weird behaviour on power-up or with transients.
>>
>>BTW kudos for working to pass stuff along to the next generation. Now
>>all you have to do is start writing for real.
>>
>>Cheers
>>
>>Phil Hobbs
>
>I suspect the MicroSim/Motorola/THYRYSTR.lib is pretty close. It's
>certainly complex enough ;-)
>
> ...Jim Thompson
After some more head-scratching, and dumping the ancient single
junction (Unijunction) device and looking only at the "PUT" (4-layer
device), the _only_ two transistor model makes sense...
*Programmable Unijunction Transistor pkg: TO-226AA, Don Kuenz
* .SUBCKT 2N6027DK 1 2 3
.SUBCKT 2N6027DK 2 1 3 ; B2 E B1
************** K1 G K2
Q1 2 4 3 NMOD
Q2 4 2 1 PMOD
.MODEL NMOD NPN(IS=5E-15 VAF=100 IKF=0.005 ISE=1.85E-12 NE=1.45
+ RB=10 RE=0.5 RC=0.5 CJE=3.5E-11 VJE=0.75 CJC=1.1E-11 VJC=0.75
TR=4.76E-8
+ TF=16N VJS=0.75 )
.MODEL PMOD PNP(IS=2E-15 VAF=100 IKF=0.005 ISE=1.9E-12 RB=10 RE=0.5
+ RC=0.5 CJE=3.5E-11 VJE=0.75 TF=1.6E-8 CJC=1.1E-11 VJC=0.75 TR=5.1E-8
+ TF=16N VJS=0.75 )
.ENDS 2N6027DK
What caught my eye was unusually low IKF (50x smaller than a 2N2222)
for a discrete bipolar device... and unusually high ISE (10x that of a
2N2222).
My bet is I will be able to relate those parameters to peak, valley
and hold-off currents.
So a "PUT" amounts to a special case of an SCR structure
Fun stuff!.
...Jim Thompson
--
| James E.Thompson | mens |
| Analog Innovations | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| San Tan Valley, AZ 85142 Skype: Contacts Only | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food.
Reply by Jim Thompson●September 14, 20132013-09-14
On Sat, 14 Sep 2013 12:30:02 -0400, Phil Hobbs
<pcdhSpamMeSenseless@electrooptical.net> wrote:
>On 9/14/2013 12:15 PM, Jim Thompson wrote:
>> On Sat, 14 Sep 2013 02:19:16 +0000 (UTC), Don Kuenz
>> <garbage@crcomp.net> wrote:
>>
>>> Jim Thompson <To-Email-Use-The-Envelope-Icon@on-my-web-site.com> wrote:
>>>> On Wed, 11 Sep 2013 09:14:33 -0700, Jim Thompson
>>>> <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:
>>>>
>>>>> On Wed, 11 Sep 2013 08:55:33 -0700, RobertMacy
>>>>> <robert.a.macy@gmail.com> wrote:
>>>>>
>>>>>> On Wed, 11 Sep 2013 08:38:57 -0700, Jim Thompson
>>>>>> <To-Email-Use-The-Envelope-Icon@on-my-web-site.com> wrote:
>>>>>>
>>>>>>> On Wed, 11 Sep 2013 07:13:46 -0700, RobertMacy
>>>>>>> <robert.a.macy@gmail.com> wrote:
>>>>>>>
>>>>>>>> ..snip...
>>>>>>>>
>>>>>>>> Did you look through the 100+MB of Alex Bordodynov's models?
>>>>>>>>
>>>>>>>> I only could download one set, not the larger set, so couldn't peruse.
>>>>>>>
>>>>>>> I've seen that name on the LTspice list. Do you have a link to his
>>>>>>> site?
>>>>>>>
>>>>>>> ...snip...
>>>>>>>
>>>>>>> ...Jim Thompson
>>>>>>
>>>>>> His models usually are accurate and have conversion speed enhancements. He
>>>>>> supplied two links, circa July 5, 2013, posted to the LTspice group, which
>>>>>> I trashed after downloading each. Big mistake!
>>>>>>
>>>>>> LTspiceIV.zip is 37MB of 'tiny' little .asc files so you have an idea how
>>>>>> many models are in there.
>>>>>> LTSPICE.DOC is 67MB and dialup download took HOURS!!! only to find out
>>>>>> today that when unzipping, comes up 'corrupted' download again!
>>>>>>
>>>>>
>>>>> Thanks. That will allow me to find it. As you know, I keep a record
>>>>> of everything... even an LTspice list directory "Pre_2013" ;-)
>>>>>
>>>>> Found it. How do I download, it's all in Russian, and I can't get the
>>>>> download to start :-(
>>>>>
>>>>> ...Jim Thompson
>>>>
>>>> Here you go...
>>>>
>>>> <http://us.ua/1162032/>
>>>>
>>>> Kill the pop-up on the lower left, then you can download.
>>>
>>> Thank you for sharing Jim. Here's a more Anglo friendly link.
>>>
>>> http://ltwiki.org/index.php5?title=Components_Library_and_Circuits
>>
>> Here's something to fret over, compare Unijunction models, wonder
>> which is real...
>>
>> <http://www.analog-innovations.com/SED/CompareUnijunctionModels.pdf>
>>
>> ...Jim Thompson
>>
>
>
>Probably neither--this is SPICE we're talking about. ;0
>
>I've used PUTs (2N6028) in laser interlocks, where I needed to be sure
>that there wouldn't be any weird behaviour on power-up or with transients.
>
>BTW kudos for working to pass stuff along to the next generation. Now
>all you have to do is start writing for real.
>
>Cheers
>
>Phil Hobbs
I suspect the MicroSim/Motorola/THYRYSTR.lib is pretty close. It's
certainly complex enough ;-)
...Jim Thompson
--
| James E.Thompson | mens |
| Analog Innovations | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| San Tan Valley, AZ 85142 Skype: Contacts Only | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food.