I was trying to design a simple voltage relay in LTspice and I wanted to = use=20 a DIAC, but I had a hard time finding a model that worked. Finally I = found=20 the following in an obscure Japanese or Chinese website=20 http://bbs.dianyuan.com/topic/111118: * PSpice Model Editor - Version 9.2 *$ ********** *SRC=3DDB3; 32V 2A *DIAC *=B8=C4=B1=E4DZ=B5=C4BV=BF=C9=D2=D4=B8=C4=B1=E4Vbo .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=3D321F RS=3D100 N=3D1.5 IBV=3D10N BV=3D30.3) .MODEL POUT PNP (IS=3D321F BF=3D100 CJE=3D134p TF=3D25.5U) .MODEL NOUT NPN (IS=3D321F BF=3D200 CJE=3D134p CJC=3D26.8p TF=3D1.7U) .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=20 determines if the voltage is nominally 120 VAC or 208/240 VAC, and = allowing=20 the mains voltage to be applied to the power section of the unit only if = it=20 is properly configured in series or parallel. The present design uses a=20 capacitor dropper circuit that has proven unreliable in the field, = probably=20 from high current spikes due to high frequency components of the = waveform. Paul=20
LTspice model for DB3 DIAC
Started by ●February 19, 2013
Reply by ●February 19, 20132013-02-19
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 >*�ı�DZ��BV���Ըı�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
Reply by ●February 19, 20132013-02-19
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>
Reply by ●February 19, 20132013-02-19
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 >*�ı�DZ��BV���Ըı�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. > >PaulUse 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
Reply by ●April 29, 20202020-04-29
El martes, 19 de febrero de 2013, 19:00:27 (UTC-7), John Larkin escribió:> 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 generatorsEl martes, 19 de febrero de 2013, 19:00:27 (UTC-7), John Larkin escribió:> 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
