> I have added the SPICE netlist below. I am using a standard op-amp
> LMH6629. The modelcard files are added after the main file. I am using
> ngspice-23 on a Fedora 14 machine running GCC 4.5.1 Please note that
> the circuit is still experimental, and so not optimized or efficient.
Lots of people (including me) run run ltspice on linux using wine.
it's easy to install and runs well (somewhat dependant on window
manager settings). The provider (linear technology) is biased towards
their own parts. One advantage is the ASCII netlists produced by this
GUI application are easily posted on usenet. And thus easily run and
understood.
In addition to wine you need to also install "xchm" if you want to use
the online help.
--
⚂⚃ 100% natural
--- Posted via news://freenews.netfront.net/ - Complaints to news@netfront.net ---
Reply by Helmut Sennewald●October 3, 20112011-10-03
"Daku" <dakupoto@gmail.com> schrieb im Newsbeitrag
news:15bc005c-d576-497a-b3e7-59aaa9118376@p11g2000yqe.googlegroups.com...
On Sep 28, 7:21 am, John Fields <jfie...@austininstruments.com> wrote:
> On Wed, 28 Sep 2011 00:48:50 -0700 (PDT), Daku <dakup...@gmail.com>
> wrote:
>
> >On Sep 28, 12:41 am, DJ Delorie <d...@delorie.com> wrote:
> >> Have you tried looking at the current through the mosfets? Or the
> >> gate-source voltage? Or the frequency vs the RC constant of the
> >> circuit?
>
> >I corrected the issue somewhat by replacing MOSFETs with BJTs.
> >The H bridge output is now in the Volts range as compared to
> >milliVolts. I have added some small inductors and Darlington pairs
> >also. Could someone point me to a good SPICE transformer
> >model ? Thanks in advance.
>
> ---
> Post your circuit.
>
> --
> JF
I have added the SPICE netlist below. I am using a standard op-amp
LMH6629. The modelcard files are added after the main file. I am using
ngspice-23 on a Fedora 14 machine running GCC 4.5.1 Please note that
the circuit is still experimental, and so not optimized or efficient.
*M0 2 3 4 4 M_PMOS L=1.2u W=1.5u
*M1 4 7 0 0 M_NMOS L=1.2u W=4.5u
*M2 2 6 5 5 M_PMOS L=1.2u W=1.5u
*M3 5 8 0 0 M_NMOS L=1.2u W=4.5u
Hello Daku,
Your Mosfets are too weak. They only have Idmax=2mA.
The ratio W/L for Power-Mosfet is more like 10000 to 100000.
This means W should be many m (milli) instead of u.
Example:
M1 4 7 0 0 M_NMOS L=1.2u W=50m
Best regards,
Helmut
Reply by josephkk●October 2, 20112011-10-02
On Sun, 02 Oct 2011 10:52:04 -0500, "krw@att.bizzzzzzzzzzzz"
<krw@att.bizzzzzzzzzzzz> wrote:
>>>>>wrote:
>>>>>
>>>>>>On Wed, 28 Sep 2011 15:45:52 -0500, krw@att.bizzzzzzzzzzzz wrote:
>>>>>>
>>>>>>> The UI is still not intuitive, however.
>>>>>>
>>>>>>I disagree.
>>>>>
>>>>>Well, there are at least two of us that couldn't find the "ON" =
button. That
>>>>>classifies it as "not intuitive". ;-)
>>>>
>>>>Why would there be an "on" button?
>>>
>>>Go back to sleep. You're smarter then.
>>
>>That is the best you have? Pitiful. The pet rock i never got would =
be
>>embarrassed to meet you.
>
>If it's your pet rock, it's understandable.
>
>>Does any of the following applications have on buttons:
>>
>>word processors
>>programmers editors
>>compilers
>>schematic capture tools
>>other cad tools
>>spreadsheets
>>video editors
>>audio editors
>>databases
>>mathematica/matrixx/mathcad/octave/maple/macsyma
>>all the various programming languages
>>
>>please answer carefully.
>
>Ok, t-y-p-i-n-g v-e-r-y c-a-r-e-f-u-l-l-y
>
>l-e-a-r-n h-o-w t-o r-e-a-d
>
>I was wrong. You aren't smarter when you sleep. You're always =
comatose.
Hoist on your own petard.
?-)
Reply by krw...@att.bizzzzzzzzzzzz●October 2, 20112011-10-02
On Sat, 01 Oct 2011 22:06:56 -0700, josephkk <joseph_barrett@sbcglobal.net>
wrote:
>On Sat, 01 Oct 2011 09:54:31 -0500, "krw@att.bizzzzzzzzzzzz"
><krw@att.bizzzzzzzzzzzz> wrote:
>
>>On Fri, 30 Sep 2011 22:37:22 -0700, josephkk <joseph_barrett@sbcglobal.net>
>>wrote:
>>
>>>On Wed, 28 Sep 2011 15:55:43 -0500, "krw@att.bizzzzzzzzzzzz"
>>><krw@att.bizzzzzzzzzzzz> wrote:
>>>
>>>>On Wed, 28 Sep 2011 13:50:09 -0700, Fred Abse <excretatauris@invalid.invalid>
>>>>wrote:
>>>>
>>>>>On Wed, 28 Sep 2011 15:45:52 -0500, krw@att.bizzzzzzzzzzzz wrote:
>>>>>
>>>>>> The UI is still not intuitive, however.
>>>>>
>>>>>I disagree.
>>>>
>>>>Well, there are at least two of us that couldn't find the "ON" button. That
>>>>classifies it as "not intuitive". ;-)
>>>
>>>Why would there be an "on" button?
>>
>>Go back to sleep. You're smarter then.
>
>That is the best you have? Pitiful. The pet rock i never got would be
>embarrassed to meet you.
If it's your pet rock, it's understandable.
>Does any of the following applications have on buttons:
>
>word processors
>programmers editors
>compilers
>schematic capture tools
>other cad tools
>spreadsheets
>video editors
>audio editors
>databases
>mathematica/matrixx/mathcad/octave/maple/macsyma
>all the various programming languages
>
>please answer carefully.
Ok, t-y-p-i-n-g v-e-r-y c-a-r-e-f-u-l-l-y
l-e-a-r-n h-o-w t-o r-e-a-d
I was wrong. You aren't smarter when you sleep. You're always comatose.
Reply by josephkk●October 2, 20112011-10-02
On Sat, 01 Oct 2011 09:54:31 -0500, "krw@att.bizzzzzzzzzzzz"
<krw@att.bizzzzzzzzzzzz> wrote:
>>>wrote:
>>>
>>>>On Wed, 28 Sep 2011 15:45:52 -0500, krw@att.bizzzzzzzzzzzz wrote:
>>>>
>>>>> The UI is still not intuitive, however.
>>>>
>>>>I disagree.
>>>
>>>Well, there are at least two of us that couldn't find the "ON" button.=
That
>>>classifies it as "not intuitive". ;-)
>>
>>Why would there be an "on" button?
>
>Go back to sleep. You're smarter then.
That is the best you have? Pitiful. The pet rock i never got would be
embarrassed to meet you.
Does any of the following applications have on buttons:
word processors
programmers editors
compilers
schematic capture tools
other cad tools
spreadsheets
video editors
audio editors
databases
mathematica/matrixx/mathcad/octave/maple/macsyma
all the various programming languages
please answer carefully.
?-))
Reply by krw...@att.bizzzzzzzzzzzz●October 1, 20112011-10-01
On Fri, 30 Sep 2011 22:37:22 -0700, josephkk <joseph_barrett@sbcglobal.net>
wrote:
>On Wed, 28 Sep 2011 15:55:43 -0500, "krw@att.bizzzzzzzzzzzz"
><krw@att.bizzzzzzzzzzzz> wrote:
>
>>On Wed, 28 Sep 2011 13:50:09 -0700, Fred Abse <excretatauris@invalid.invalid>
>>wrote:
>>
>>>On Wed, 28 Sep 2011 15:45:52 -0500, krw@att.bizzzzzzzzzzzz wrote:
>>>
>>>> The UI is still not intuitive, however.
>>>
>>>I disagree.
>>
>>Well, there are at least two of us that couldn't find the "ON" button. That
>>classifies it as "not intuitive". ;-)
>
>Why would there be an "on" button?
Go back to sleep. You're smarter then.
Reply by josephkk●October 1, 20112011-10-01
On Wed, 28 Sep 2011 15:55:43 -0500, "krw@att.bizzzzzzzzzzzz"
<krw@att.bizzzzzzzzzzzz> wrote:
>On Wed, 28 Sep 2011 13:50:09 -0700, Fred Abse =
<excretatauris@invalid.invalid>
>wrote:
>
>>On Wed, 28 Sep 2011 15:45:52 -0500, krw@att.bizzzzzzzzzzzz wrote:
>>
>>> The UI is still not intuitive, however.
>>
>>I disagree.
>
>Well, there are at least two of us that couldn't find the "ON" button. =
That
>classifies it as "not intuitive". ;-)
Why would there be an "on" button?
?-/
Reply by josephkk●October 1, 20112011-10-01
On Wed, 28 Sep 2011 15:45:52 -0500, "krw@att.bizzzzzzzzzzzz"
<krw@att.bizzzzzzzzzzzz> wrote:
>>>>> On Wed, 28 Sep 2011 00:48:50 -0700 (PDT), Daku <dakup...@gmail.com>
>>>>> >On Sep 28, 12:41 am, DJ Delorie <d...@delorie.com> wrote:
>>>>> >> Have you tried looking at the current through the mosfets? Or =
the
>>>>> >> gate-source voltage? Or the frequency vs the RC constant of the
>>>>> >> circuit?
>>>>>
>>>>> >I corrected the issue somewhat by replacing MOSFETs with BJTs.
>>>>> >The H bridge output is now in the Volts range as compared to
>>>>> >milliVolts. I have added some small inductors and Darlington pairs
>>>>> >also. Could someone point me to a good SPICE transformer
>>>>> >model ? Thanks in advance.
>>>>> ---
>>>>> Post your circuit.
>>>>>
>>>>I have added the SPICE netlist below. I am using a standard op-amp
>>>>LMH6629. The modelcard files are added after the main file. I am =
using
>>>>ngspice-23 on a Fedora 14 machine running GCC 4.5.1 Please note that
>>>>the circuit is still experimental, and so not optimized or efficient.
>>>=20
>>> Sorry, I thought you were running LTspice.
>>>=20
>>> Thanks for the reply, though.
>>>=20
>>Isn't spice, pretty much, spice? Just to satisfy my morbid curiosity,
>>what happens when you run Daku's netlist through your LTSpice?
>
>Nope. There are differences between the various dialects of SPICE, some
>rather major. AIUI, SPICE is the underlying engine (which aren't the =
same,
>either).
>
>>(I haven't yet been able to figure out how to operate LTspice or any=20
>>linux versions of it.)
>
>I had trouble getting over the initial hump, too. I took a seminar in =
Atlanta
>and it made it much clearer. The UI is still not intuitive, however.
So you had trouble, i found LTSpice to be just ducky intuitive. Has a
kind of sucky (stock) model library though.
?-)
Reply by Jim Thompson●September 29, 20112011-09-29
On Thu, 29 Sep 2011 04:34:19 -0500, John Fields
<jfields@austininstruments.com> wrote:
>On Wed, 28 Sep 2011 13:00:33 -0700, Rich Grise
><richg@example.net.invalid> wrote:
>
>>John Fields wrote:
>>> On Wed, 28 Sep 2011 05:54:19 -0700 (PDT), Daku <dakupoto@gmail.com>
>>>>On Sep 28, 7:21�am, John Fields <jfie...@austininstruments.com> wrote:
>>>>> On Wed, 28 Sep 2011 00:48:50 -0700 (PDT), Daku <dakup...@gmail.com>
>>>>> >On Sep 28, 12:41 am, DJ Delorie <d...@delorie.com> wrote:
>>>>> >> Have you tried looking at the current through the mosfets? Or the
>>>>> >> gate-source voltage? Or the frequency vs the RC constant of the
>>>>> >> circuit?
>>>>>
>>>>> >I corrected the issue somewhat by replacing MOSFETs with BJTs.
>>>>> >The H bridge output is now in the Volts range as compared to
>>>>> >milliVolts. I have added some small inductors and Darlington pairs
>>>>> >also. Could someone point me to a good SPICE transformer
>>>>> >model ? Thanks in advance.
>>>>> ---
>>>>> Post your circuit.
>>>>>
>>>>I have added the SPICE netlist below. I am using a standard op-amp
>>>>LMH6629. The modelcard files are added after the main file. I am using
>>>>ngspice-23 on a Fedora 14 machine running GCC 4.5.1 Please note that
>>>>the circuit is still experimental, and so not optimized or efficient.
>>>
>>> Sorry, I thought you were running LTspice.
>>>
>>> Thanks for the reply, though.
>>>
>>Isn't spice, pretty much, spice? Just to satisfy my morbid curiosity,
>>what happens when you run Daku's netlist through your LTSpice?
>
>---
>Dunno...
>
>LTspice won't generate a schematic from a netlist, so I'll just leave
>it alone.
LTspice will run a "netlist" generated by other "Spices" _provided_ it's in a
.cir format, that is netlist and _directives_ combined into one. I do it
regularly for "nasties" such as crystal oscillators that run slowly on PSpice.
This gives me quick, rough-cut, circuit adjustments which I then smooth in
PSpice, and make presentation-grade output graphs o:-)
...Jim Thompson
--
[On the Road, in New York]
| James E.Thompson, CTO | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 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.
>John Fields wrote:
>> On Wed, 28 Sep 2011 05:54:19 -0700 (PDT), Daku <dakupoto@gmail.com>
>>>On Sep 28, 7:21�am, John Fields <jfie...@austininstruments.com> wrote:
>>>> On Wed, 28 Sep 2011 00:48:50 -0700 (PDT), Daku <dakup...@gmail.com>
>>>> >On Sep 28, 12:41 am, DJ Delorie <d...@delorie.com> wrote:
>>>> >> Have you tried looking at the current through the mosfets? Or the
>>>> >> gate-source voltage? Or the frequency vs the RC constant of the
>>>> >> circuit?
>>>>
>>>> >I corrected the issue somewhat by replacing MOSFETs with BJTs.
>>>> >The H bridge output is now in the Volts range as compared to
>>>> >milliVolts. I have added some small inductors and Darlington pairs
>>>> >also. Could someone point me to a good SPICE transformer
>>>> >model ? Thanks in advance.
>>>> ---
>>>> Post your circuit.
>>>>
>>>I have added the SPICE netlist below. I am using a standard op-amp
>>>LMH6629. The modelcard files are added after the main file. I am using
>>>ngspice-23 on a Fedora 14 machine running GCC 4.5.1 Please note that
>>>the circuit is still experimental, and so not optimized or efficient.
>>
>> Sorry, I thought you were running LTspice.
>>
>> Thanks for the reply, though.
>>
>Isn't spice, pretty much, spice? Just to satisfy my morbid curiosity,
>what happens when you run Daku's netlist through your LTSpice?
---
Dunno...
LTspice won't generate a schematic from a netlist, so I'll just leave
it alone.
--
JF