LTspice model for DB3 DIAC

[P E Schoen]

I was trying to design a simple voltage relay in LTspice and I wanted to use
a DIAC, but I had a hard time finding a model that worked. Finally I found
the following in an obscure Japanese or Chinese website
http://bbs.dianyuan.com/topic/111118:

* PSpice Model Editor - Version 9.2

*$
**********
*SRC=DB3; 32V 2A
*DIAC
*¸ÄąäDZľÄBVżÉŇԸĹäVbo
..SUBCKT DB3 1 2
* TERMINALS: MT2 MT1
QN1 5 4 2 NOUT; OFF
QN2 8 6 7 NOUT; OFF
QP1 6 8 10 POUT; OFF
QP2 4 5 9 POUT; OFF
D1 7 9 DZ
D2 2 10 DZ
DF 4 3 DZ; OFF
DR 6 3 DZ; OFF
RF 4 3 1.13E+7
RR 6 3 1.13E+7
RT2 1 7 0.755
RH 7 6 10k
RH2 4 2 10k
..MODEL DZ D (IS=321F RS=100 N=1.5 IBV=10N BV=30.3)
..MODEL POUT PNP (IS=321F BF=100 CJE=134p TF=25.5U)
..MODEL NOUT NPN (IS=321F BF=200 CJE=134p CJC=26.8p TF=1.7U)
..ENDS
*$

Some other less useful sites are:
http://www.beigebag.com/case_shockley.htm
http://users.skynet.be/hugocoolens/spice/power/diac.htm

The website www.st.com is supposed to have models but it redirects to an
under construction page

What I want to do is replace a voltage relay in an octal enclosure that
determines if the voltage is nominally 120 VAC or 208/240 VAC, and allowing
the mains voltage to be applied to the power section of the unit only if it
is properly configured in series or parallel. The present design uses a
capacitor dropper circuit that has proven unreliable in the field, probably
from high current spikes due to high frequency components of the waveform.

Paul

 

On Tue, 19 Feb 2013 01:17:20 -0500, "P E Schoen" <paul@peschoen.com>
wrote:

I was trying to design a simple voltage relay in LTspice and I wanted to use
a DIAC, but I had a hard time finding a model that worked. Finally I found
the following in an obscure Japanese or Chinese website
http://bbs.dianyuan.com/topic/111118:

I have seen this site before and it is very pretty looking,
but I can't read it and never have seen any of the content
that was supposedly being linked.

For instance, I don't see any spice models on this pages linked
to.

It looks like they sell electronics parts though. No English
tab that I can see.

boB

* PSpice Model Editor - Version 9.2

*$
**********
*SRC=DB3; 32V 2A
*DIAC
*¸ÄąäDZľÄBVżÉŇԸĹäVbo
.SUBCKT DB3 1 2
* TERMINALS: MT2 MT1
QN1 5 4 2 NOUT; OFF
QN2 8 6 7 NOUT; OFF
QP1 6 8 10 POUT; OFF
QP2 4 5 9 POUT; OFF
D1 7 9 DZ
D2 2 10 DZ
DF 4 3 DZ; OFF
DR 6 3 DZ; OFF
RF 4 3 1.13E+7
RR 6 3 1.13E+7
RT2 1 7 0.755
RH 7 6 10k
RH2 4 2 10k
.MODEL DZ D (IS=321F RS=100 N=1.5 IBV=10N BV=30.3)
.MODEL POUT PNP (IS=321F BF=100 CJE=134p TF=25.5U)
.MODEL NOUT NPN (IS=321F BF=200 CJE=134p CJC=26.8p TF=1.7U)
.ENDS
*$

Some other less useful sites are:
http://www.beigebag.com/case_shockley.htm
http://users.skynet.be/hugocoolens/spice/power/diac.htm

The website www.st.com is supposed to have models but it redirects to an
under construction page

What I want to do is replace a voltage relay in an octal enclosure that
determines if the voltage is nominally 120 VAC or 208/240 VAC, and allowing
the mains voltage to be applied to the power section of the unit only if it
is properly configured in series or parallel. The present design uses a
capacitor dropper circuit that has proven unreliable in the field, probably
from high current spikes due to high frequency components of the waveform.

Paul

 

[Christian Koch]

P E Schoen wrote:

The website www.st.com is supposed to have models but it redirects to an
under construction page

It seems that their new website is online now. The DIAC models are available
for download at [1].

Christian.


[1] <http://www.st.com/st-web-ui/static/active/en/resource/technical/ecad_models_and_symbols/hw_model/diacs_pspice.zip>

 

[John Larkin]

On Tue, 19 Feb 2013 01:17:20 -0500, "P E Schoen" <paul@peschoen.com> wrote:

I was trying to design a simple voltage relay in LTspice and I wanted to use
a DIAC, but I had a hard time finding a model that worked. Finally I found
the following in an obscure Japanese or Chinese website
http://bbs.dianyuan.com/topic/111118:

* PSpice Model Editor - Version 9.2

*$
**********
*SRC=DB3; 32V 2A
*DIAC
*¸ÄąäDZľÄBVżÉŇԸĹäVbo
.SUBCKT DB3 1 2
* TERMINALS: MT2 MT1
QN1 5 4 2 NOUT; OFF
QN2 8 6 7 NOUT; OFF
QP1 6 8 10 POUT; OFF
QP2 4 5 9 POUT; OFF
D1 7 9 DZ
D2 2 10 DZ
DF 4 3 DZ; OFF
DR 6 3 DZ; OFF
RF 4 3 1.13E+7
RR 6 3 1.13E+7
RT2 1 7 0.755
RH 7 6 10k
RH2 4 2 10k
.MODEL DZ D (IS=321F RS=100 N=1.5 IBV=10N BV=30.3)
.MODEL POUT PNP (IS=321F BF=100 CJE=134p TF=25.5U)
.MODEL NOUT NPN (IS=321F BF=200 CJE=134p CJC=26.8p TF=1.7U)
.ENDS
*$

Some other less useful sites are:
http://www.beigebag.com/case_shockley.htm
http://users.skynet.be/hugocoolens/spice/power/diac.htm

The website www.st.com is supposed to have models but it redirects to an
under construction page

What I want to do is replace a voltage relay in an octal enclosure that
determines if the voltage is nominally 120 VAC or 208/240 VAC, and allowing
the mains voltage to be applied to the power section of the unit only if it
is properly configured in series or parallel. The present design uses a
capacitor dropper circuit that has proven unreliable in the field, probably
from high current spikes due to high frequency components of the waveform.

Paul

Use the LT Spice "neon bulb" part!


--

John Larkin Highland Technology Inc
www.highlandtechnology.com jlarkin at highlandtechnology dot com

Precision electronic instrumentation
Picosecond-resolution Digital Delay and Pulse generators
Custom timing and laser controllers
Photonics and fiberoptic TTL data links
VME analog, thermocouple, LVDT, synchro, tachometer
Multichannel arbitrary waveform generators

 

[jesusefrenhernandez10@gma]

El martes, 19 de febrero de 2013, 19:00:27 (UTC-7), John Larkin escribiĂł:

On Tue, 19 Feb 2013 01:17:20 -0500, "P E Schoen" <paul@peschoen.com> wrote:

I was trying to design a simple voltage relay in LTspice and I wanted to use
a DIAC, but I had a hard time finding a model that worked. Finally I found
the following in an obscure Japanese or Chinese website
http://bbs.dianyuan.com/topic/111118:

* PSpice Model Editor - Version 9.2

*$
**********
*SRC=DB3; 32V 2A
*DIAC
*改变DZ的BV可以改变Vbo
.SUBCKT DB3 1 2
* TERMINALS: MT2 MT1
QN1 5 4 2 NOUT; OFF
QN2 8 6 7 NOUT; OFF
QP1 6 8 10 POUT; OFF
QP2 4 5 9 POUT; OFF
D1 7 9 DZ
D2 2 10 DZ
DF 4 3 DZ; OFF
DR 6 3 DZ; OFF
RF 4 3 1.13E+7
RR 6 3 1.13E+7
RT2 1 7 0.755
RH 7 6 10k
RH2 4 2 10k
.MODEL DZ D (IS=321F RS=100 N=1.5 IBV=10N BV=30.3)
.MODEL POUT PNP (IS=321F BF=100 CJE=134p TF=25.5U)
.MODEL NOUT NPN (IS=321F BF=200 CJE=134p CJC=26.8p TF=1.7U)
.ENDS
*$

Some other less useful sites are:
http://www.beigebag.com/case_shockley.htm
http://users.skynet.be/hugocoolens/spice/power/diac.htm

The website www.st.com is supposed to have models but it redirects to an
under construction page

What I want to do is replace a voltage relay in an octal enclosure that
determines if the voltage is nominally 120 VAC or 208/240 VAC, and allowing
the mains voltage to be applied to the power section of the unit only if it
is properly configured in series or parallel. The present design uses a
capacitor dropper circuit that has proven unreliable in the field, probably
from high current spikes due to high frequency components of the waveform.

Paul

Use the LT Spice "neon bulb" part!


--

John Larkin Highland Technology Inc
www.highlandtechnology.com jlarkin at highlandtechnology dot com

Precision electronic instrumentation
Picosecond-resolution Digital Delay and Pulse generators
Custom timing and laser controllers
Photonics and fiberoptic TTL data links
VME analog, thermocouple, LVDT, synchro, tachometer
Multichannel arbitrary waveform generators

El martes, 19 de febrero de 2013, 19:00:27 (UTC-7), John Larkin escribiĂł:

On Tue, 19 Feb 2013 01:17:20 -0500, "P E Schoen" <paul@peschoen.com> wrote:

I was trying to design a simple voltage relay in LTspice and I wanted to use
a DIAC, but I had a hard time finding a model that worked. Finally I found
the following in an obscure Japanese or Chinese website
http://bbs.dianyuan.com/topic/111118:

* PSpice Model Editor - Version 9.2

*$
**********
*SRC=DB3; 32V 2A
*DIAC
*改变DZ的BV可以改变Vbo
.SUBCKT DB3 1 2
* TERMINALS: MT2 MT1
QN1 5 4 2 NOUT; OFF
QN2 8 6 7 NOUT; OFF
QP1 6 8 10 POUT; OFF
QP2 4 5 9 POUT; OFF
D1 7 9 DZ
D2 2 10 DZ
DF 4 3 DZ; OFF
DR 6 3 DZ; OFF
RF 4 3 1.13E+7
RR 6 3 1.13E+7
RT2 1 7 0.755
RH 7 6 10k
RH2 4 2 10k
.MODEL DZ D (IS=321F RS=100 N=1.5 IBV=10N BV=30.3)
.MODEL POUT PNP (IS=321F BF=100 CJE=134p TF=25.5U)
.MODEL NOUT NPN (IS=321F BF=200 CJE=134p CJC=26.8p TF=1.7U)
.ENDS
*$

Some other less useful sites are:
http://www.beigebag.com/case_shockley.htm
http://users.skynet.be/hugocoolens/spice/power/diac.htm

The website www.st.com is supposed to have models but it redirects to an
under construction page

What I want to do is replace a voltage relay in an octal enclosure that
determines if the voltage is nominally 120 VAC or 208/240 VAC, and allowing
the mains voltage to be applied to the power section of the unit only if it
is properly configured in series or parallel. The present design uses a
capacitor dropper circuit that has proven unreliable in the field, probably
from high current spikes due to high frequency components of the waveform.

Paul

Use the LT Spice "neon bulb" part!


--

John Larkin Highland Technology Inc
www.highlandtechnology.com jlarkin at highlandtechnology dot com

Precision electronic instrumentation
Picosecond-resolution Digital Delay and Pulse generators
Custom timing and laser controllers
Photonics and fiberoptic TTL data links
VME analog, thermocouple, LVDT, synchro, tachometer
Multichannel arbitrary waveform generators