On Fri, 06 Nov 2015 07:40:56 -0700, Jim Thompson
<To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:
>On Fri, 06 Nov 2015 09:30:17 -0500, legg <legg@nospam.magma.ca> wrote:
>
>>On Thu, 05 Nov 2015 16:06:51 -0700, Jim Thompson
>><To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:
>>
>>>On Thu, 5 Nov 2015 14:25:23 -0800 (PST), tabbypurr@gmail.com wrote:
>>>
>>>>On Thursday, 5 November 2015 19:51:19 UTC, John Larkin wrote:
>>>>> I usually have a couple of "voltage" things off to the side, making +5
>>>>> and -5 or whatever, and have each opamp with little doglegs on its
>>>>> power pins, same net names.
>>>>>
>>>>> Somewhere I thought I saw a circuit where the opamps were powered by
>>>>> little boxes with "+5" or something inside, with no other supply
>>>>> needed. Does that work? If so, how do you invoke it?
>>>>
>>>>
>>>>Also can one power ICs from circuit outputs on spice? ISTR finding the IC model I was using had no power pins.
>>>>
>>>>
>>>>NT
>>>
>>>PSpice has power symbols thus: +5V O---x
>>>
>>>The "x" doesn't show, but it's the pin.
>>>
>>>It netlists as:
>>>
>>>V1 x 0 +5V
>>>
>>>I tried to draw a circle in LTspice, but the drawing tool is the most
>>>obtuse POS I've ever seen.
>>>
>>>In PSpice you choose Draw/Circle, click on the center point, then drag
>>>it out to the desired diameter.
>>>
>>> ...Jim Thompson
>>
>>In LTspice, you're detrmining anchor points of a bounding box. You can
>>choose whether these anchor points are visible or not under the 'view'
>>menu.
>>
>>RL
>
>I know, but that method it difficult to align objects.
>
> ...Jim Thompson
Possibly makes more sense when the line connection can only resolve at
rt angles on the grid and not to a center.
RL
Reply by Jim Thompson●November 6, 20152015-11-06
On Fri, 06 Nov 2015 09:30:17 -0500, legg <legg@nospam.magma.ca> wrote:
>On Thu, 05 Nov 2015 16:06:51 -0700, Jim Thompson
><To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:
>
>>On Thu, 5 Nov 2015 14:25:23 -0800 (PST), tabbypurr@gmail.com wrote:
>>
>>>On Thursday, 5 November 2015 19:51:19 UTC, John Larkin wrote:
>>>> I usually have a couple of "voltage" things off to the side, making +5
>>>> and -5 or whatever, and have each opamp with little doglegs on its
>>>> power pins, same net names.
>>>>
>>>> Somewhere I thought I saw a circuit where the opamps were powered by
>>>> little boxes with "+5" or something inside, with no other supply
>>>> needed. Does that work? If so, how do you invoke it?
>>>
>>>
>>>Also can one power ICs from circuit outputs on spice? ISTR finding the IC model I was using had no power pins.
>>>
>>>
>>>NT
>>
>>PSpice has power symbols thus: +5V O---x
>>
>>The "x" doesn't show, but it's the pin.
>>
>>It netlists as:
>>
>>V1 x 0 +5V
>>
>>I tried to draw a circle in LTspice, but the drawing tool is the most
>>obtuse POS I've ever seen.
>>
>>In PSpice you choose Draw/Circle, click on the center point, then drag
>>it out to the desired diameter.
>>
>> ...Jim Thompson
>
>In LTspice, you're detrmining anchor points of a bounding box. You can
>choose whether these anchor points are visible or not under the 'view'
>menu.
>
>RL
I know, but that method it difficult to align objects.
...Jim Thompson
--
| James E.Thompson | mens |
| Analog Innovations | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| San Tan Valley, AZ 85142 Skype: skypeanalog | |
| 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 legg●November 6, 20152015-11-06
On Thu, 05 Nov 2015 16:06:51 -0700, Jim Thompson
<To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote:
>On Thu, 5 Nov 2015 14:25:23 -0800 (PST), tabbypurr@gmail.com wrote:
>
>>On Thursday, 5 November 2015 19:51:19 UTC, John Larkin wrote:
>>> I usually have a couple of "voltage" things off to the side, making +5
>>> and -5 or whatever, and have each opamp with little doglegs on its
>>> power pins, same net names.
>>>
>>> Somewhere I thought I saw a circuit where the opamps were powered by
>>> little boxes with "+5" or something inside, with no other supply
>>> needed. Does that work? If so, how do you invoke it?
>>
>>
>>Also can one power ICs from circuit outputs on spice? ISTR finding the IC model I was using had no power pins.
>>
>>
>>NT
>
>PSpice has power symbols thus: +5V O---x
>
>The "x" doesn't show, but it's the pin.
>
>It netlists as:
>
>V1 x 0 +5V
>
>I tried to draw a circle in LTspice, but the drawing tool is the most
>obtuse POS I've ever seen.
>
>In PSpice you choose Draw/Circle, click on the center point, then drag
>it out to the desired diameter.
>
> ...Jim Thompson
In LTspice, you're detrmining anchor points of a bounding box. You can
choose whether these anchor points are visible or not under the 'view'
menu.
RL
Reply by Jim Thompson●November 5, 20152015-11-05
On Thu, 5 Nov 2015 14:25:23 -0800 (PST), tabbypurr@gmail.com wrote:
>On Thursday, 5 November 2015 19:51:19 UTC, John Larkin wrote:
>> I usually have a couple of "voltage" things off to the side, making +5
>> and -5 or whatever, and have each opamp with little doglegs on its
>> power pins, same net names.
>>
>> Somewhere I thought I saw a circuit where the opamps were powered by
>> little boxes with "+5" or something inside, with no other supply
>> needed. Does that work? If so, how do you invoke it?
>
>
>Also can one power ICs from circuit outputs on spice? ISTR finding the IC model I was using had no power pins.
>
>
>NT
PSpice has power symbols thus: +5V O---x
The "x" doesn't show, but it's the pin.
It netlists as:
V1 x 0 +5V
I tried to draw a circle in LTspice, but the drawing tool is the most
obtuse POS I've ever seen.
In PSpice you choose Draw/Circle, click on the center point, then drag
it out to the desired diameter.
...Jim Thompson
--
| James E.Thompson | mens |
| Analog Innovations | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| San Tan Valley, AZ 85142 Skype: skypeanalog | |
| 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 ●November 5, 20152015-11-05
On Thursday, 5 November 2015 19:51:19 UTC, John Larkin wrote:
> I usually have a couple of "voltage" things off to the side, making +5
> and -5 or whatever, and have each opamp with little doglegs on its
> power pins, same net names.
>
> Somewhere I thought I saw a circuit where the opamps were powered by
> little boxes with "+5" or something inside, with no other supply
> needed. Does that work? If so, how do you invoke it?
Also can one power ICs from circuit outputs on spice? ISTR finding the IC model I was using had no power pins.
NT
Reply by John Larkin●November 5, 20152015-11-05
I usually have a couple of "voltage" things off to the side, making +5
and -5 or whatever, and have each opamp with little doglegs on its
power pins, same net names.
Somewhere I thought I saw a circuit where the opamps were powered by
little boxes with "+5" or something inside, with no other supply
needed. Does that work? If so, how do you invoke it?
--
John Larkin Highland Technology, Inc
picosecond timing precision measurement
jlarkin att highlandtechnology dott com
http://www.highlandtechnology.com