25 kW FM3 Three-Phase Inverter

Ujala_MG

Hi,

I have already purchased two Wolfspeed inverters and I am currently using them. I have a couple of issues related to this.

1. The purchased inverters are: 25 kW FM3 Three-Phase Inverters - CRD25DA12N-FMC, V1.2 01/2024. On the Wolfspeed website, the available CRD25DA12N-FMC_ALL_Design_Files are for V1.1. Can you please provide us with the newer version (V1.2) design files including the Altium, BOM, Gerbers, schematic, and the user guide pdf?
2. Is there an encoder interface on the Wolfspeed board except for the resolver(J16)?
3. We have the CCS code provided by Wolfspeed for CRD25DA12N-FMC. Is there a coder interface that we can use on this board or the control card.? Has this code been generated through auto-coding using a simulation platform like PLECS or Matlab? If that is so, can you please provide us that related PLECS or other Simulink model ?

Thank You!

Forum_Moderator

Thank you for your post, it has been approved and we will respond as soon as possible.

ChrisN

Hello Ujala_MG,

Thank you for your interest in this product. I answered your questions individually below.

1. I attached the V1.2 files.
2. The resolver is the only built-in mechanical feedback. There are also some spare ADCs and GPIOs that can be used to add additional sensor functionality.
3. We only provide the CCS code. We do not provide a coder interface for the design.

Thanks,

Chris N.

CRD25DA12N-FMC V1.2 (01-2024) - Assembly BOM.xlsx

CRD25DA12N-FMC V1.2 (01-2024) - Gerbers.zip

CRD25DA12N-FMC V1-2 (01-2024) - Altium.zip

CRD25DA12N-FMC V1-2 (01-2024).pdf

Ujala_MG

Thank you for the given information!

Are the resolver inputs on the Wolfspeed board designed for a specific resolver model? If that so, what would be the resolver model?

Has the code been generated through auto-coding using a simulation platform like PLECS or Matlab? Can you please provide us with a PLECS/Matlab Simulink model that can be used for auto-code generation for the inverter?

Thanks!

ChrisN

Hello Ujala_MG,

By default, the resolver excitation signals are fixed and are optimized for 7 Vrms @ 10 kHz resolvers such as the Tamagawa TS2640N321E64.

The code was not generated using auto-coding. It was written directly in Code Composer Studio, so we do not have an auto-code generation model of the design.

Thanks,

Chris N.

Ujala_MG

Thank you!

Would you please let me know the J8 spare connectors' 5V power supply pin's current rating (supply current of the +5V pin)?

ChrisN

<1 A. The connector pin is rated for 3 A (datasheet), but the pin is powered from a 12V-to-5V DC/DC converter which is only rated for 1 A, and powers other circuitry on the board. We do not recommend trying to draw close to 1 A of current on this pin since it may cause an unreliable 5 V rail, which powers critical circuitry on the board.

Thanks,

Chris N.

Ujala_MG

I want to use this 5V spare pin to connect a hall-effect sensor which requires a 5V voltage supply and , a 7 to10 mA current supply. Will this be possible with the 5V spare pin on the Wolfspeed board?

Thanks!

ChrisN

Yes.

Thanks,

Chris N.

Ujala_MG

Can you please let me know the maximum and minimum voltage levels of the resolver Sin+, Sin-, Cos+, Cos- pins can handle?

Thanks!

ChrisN

Hello Ujala_MG,

The resolver circuit is based off a design from Texas Instruments. More information about the resolver circuit can be found in the datasheet for that design found here.

Thanks,

Chris N.