i would like to use this ic SPV1050, May I know what simulation software can I use to simulate this circuit?

[luckysquad]

..

[Marco FICHERA]

Hi @luckysquad​ ,

we don’t have any video for the simulation set-up of SPV1050�?.

However, the simulation with TEG supply at input stage is quite simple.

In fact, the TEG supply can be simulated by a voltage source (Vs) with a resistor (Rs) in series.

Vs and Rs depends to the ∆temperature applied to the TEG.

Assuming you want to test at ∆temperature = ∆TMAX then:

• Vs corresponds to the open circuit voltage of the TEG@∆TMAX
• Rs = Vs / Is, where Is stands for the max current supplied by the TEG@∆TMAX

For the selection of the proper mode (boos or buck-boost) and for the application components of SPV1050, please refer to the datasheet (https://www.st.com/resource/en/datasheet/SPV1050.pdf).

Regards

Marco

[luckysquad]

but did you know how can I get the lib component for spv1050? cause I try to find the component but doesn't have the lib for this IC. I try to use PSpice cadence but don't have this IC. can you help me.

[Marco FICHERA]

@luckysquad​ ,

I provide you a zip file containing the following:

• SPV1050_ORCAD_project.zip :
  • containing both the .lib of the model and the .OLB for the PSpice symbol.
  • containing a README.docx (also reported at the bottom of this post)
• 2 pdf with application schematics, TB_TEG_schematic.pdf, TB_TEG__MIN_Pin_schematic.pdf, simulated in the context of the OrCAD project in the .zip and related to the TEG source. You could use them as a starting point for your simulations.

Regards,

Marco

*****************************************************************************************

SPV1050 Macro-Model for Cadence OrCAD PSpice

The SPV1050 Macro-Model has been developed and validated by using the simulation platform Cadence OrCAD ORCAD PSPICE v16.6.

The standalone SPV1050 macro-model library (encrypted) is ./LIB/SPV1050_macromodel.lib

and its symbol library is ./LIB/SPV1050_macromodel.OLB .

This archive SPV1050_ORCAD_project.zip contains the sample OrCAD project SPV1050.opj and all its related files, to show the

SPV1050 macro-model usage in the following four application schematics testbenches:

            1) TB_PV: testbench BUCK-BOOST using a panel with Voc=9V e Isc=100u;

        

             2) TB_PV_with_SHADOW: testbench BUCK-BOOST using a panel with Voc=9V

                  and Isc=100u at startup and after a shadow that reduces the panel power to 30uW

                  with 150mV on MPP: in order to simulate this testbench the parameter Tsample has

                  been fictious reduced from 16s to 2s to allow a fast tracking of the fast shadow;

           3) TB_TEG: testbench BOOST using a TEG con V_TEG=700mV e I_TEG=100u;

           4) TB_TEG__MIN_Pin: testbench BOOST using a TEG with minimum power, with

                V_TEG=500mV e I_TEG=30u.

For the BOOST configuration, a parameter called FAST_BOOST_STARTUP had been defined and if it’s set to 1, it allows

the capacitor CSTORE charge through a constant current during the startup till 2.5V, in order to speed-up the startup behavior

by avoiding the slow charge pump activity.

****************************************************************************************************

[luckysquad]

I already get the file and do simulation using PSpice OrCAD cadence. but when I try to run the file that you gave me, the error comes out. it said ( shown in picture). did you know how to solve this error? and I realize something that the .lib file was encrypted. is it because the file was encrypted so the error come out??

[Marco FICHERA]

@luckysquad​ ,

The sent SPV1050_ORCAD_project works successfully in ST side, probably you are is using an old and not patched or not full features Cadence OrCAD PSpice v17.4 platform:

below you find the ST obtained simulation results by running the user tried testbech TB_TEG_Min_Pin and the ST used OrCAD v17.4 platform ( it isn’t a demo version but a full licensed features) .

Cadence OrCAD environment exhibits some issues managing projects stored in long Windows path therefore try also to store and start the SPV1050_ORCAD_project from a shorter path folder , for example from c:\temp.

 

Regards

Marco

[luckysquad]

if you don't mind, can you share the video on how you use OrCAD cadence to simulate this IC and get the result you show in the picture above? I really need your help :(. because actually I'm a beginner, so I do not really understand how to use this orcad cadence and what should I do if I get some error. please help me I really need your help :(

[Marco FICHERA]

Sorry @luckysquad​ , but can't provide more material.

The above model, equipped with a project with sample testbenches, is compatible with a Cadence OrCAD PSpice full licensed version, not demo. The version is >=16.6

Now it's up to you to continue with your application.

[luckysquad]

can you explain a little bit about the picture that you have shown above and how the parameter set 500 m and 30 u influences the result that you get? i want to know, why you set parameter values like that and what the reasons.