Hello community!

I am trying to run a simulation but I have been having trouble with the components and their respective outputs. The purpose of the simulation is to verify if the gate driver is adequate for the IGBT model I am trying to control.
The IGBT model I am trying to use for simulation is not the actual component that will be purchased for the definite design.

Gate Driver model: UCC5390SC from Texas Instruments.
IGBT model: IXYH82N120C3 from IXYS

Please let me know any question for clarification. THANKS IN ADVANCE TO ALL!

 

hi 19,
Do you have a sub or mod file for the uuc model you are trying run.?
E

 

hi 19,
Do you have a sub or mod file for the uuc model you are trying run.?
E

These are the models I have for each component. I downloaded them from their respective websites.

 

hi 19,
It always makes it easier to get help, if non standard LTS models are uploaded with the asc file, thanks.
I don't have time to run the files today, but I am sure others will be interested.
E

@Bordodynov

 

hi 19,
It always makes it easier to get help, if non standard LTS models are uploaded with the asc file, thanks.
I don't have time to run the files today, but I am sure others will be interested.
E

I am honestly confused with the files I uploaded as I downloaded them from the manufacturers website but I see they are not in mod file extension and such. What should I do?

 

Hello community!

I am trying to run a simulation but I have been having trouble with the components and their respective outputs. The purpose of the simulation is to verify if the gate driver is adequate for the IGBT model I am trying to control.
The IGBT model I am trying to use for simulation is not the actual component that will be purchased for the definite design.

Gate Driver model: UCC5390SC from Texas Instruments.
IGBT model: IXYH82N120C3 from IXYS

Please let me know any question for clarification. THANKS IN ADVANCE TO ALL!

Hi

Try the attached files
I modified the UCC5390 model file so it will work with LTspice.
Also...Use the attached symbol file.

eT

 

Hi

Try the attached files
I modified the UCC5390 model file so it will work with LTspice.
Also...Use the attached symbol file.

eT

I highly appreciate your help with this. I have been stuck working on this for months as I was unable to find the proper driver for this IGBT, and now running the actual simulation.
What was the issue with components in simulation?
What was missing so I understand why know it is working as it should

Thanks a lot, indeed.

 

I highly appreciate your help with this. I have been stuck working on this for months as I was unable to find the proper driver for this IGBT, and now running the actual simulation.
What was the issue with components in simulation?
What was missing so I understand why know it is working as it should

Thanks a lot, indeed.

Hi

1. While LTspice is compatible with pspice code, There are some device statements that cause issues with LTspice.
I've learned over time to recognize which statements need to be reformatted. I identified those and fixed them.
2. VCC1 sets the expected logic voltage levels at the IN+/IN- pins. VCC1 was set to 5v but the pulse generator was set to 3.3 volts.
The outputs remained off since the input voltage level never reached a high enough voltage level to turn the outputs on.
I set them both to 3.3v.
3. I believe this circuit was derived from design example 11.2.1 on the TI datasheet. The pulse generator wasn't set to 10Khz. I set it to 10Khz.
4. I noticed there were negative going spikes on the trailing edges of the IGBT output pulses. I reset the gate resistors to 10 ohms and that cleared it up. I didn't explore any further why and leave that up to you to research.

BTW- Some spice models will include external device models used to test the circuit.
The UCC5390 model file is such a model and actually includes a IGBT transistor definition in the file. see ".SUBCKT IGBT C G E" line close to the end of the file.

eT