Question Regarding KIT-CRD-CIL12N-FMC Sic Eval Board

Hassan

Hello,

I want to ask some technical information regarding SiC Six Pack Module Evaluation Board KIT-CRD-CIL12N-FMC.

1. What is maximum power rating of this Evaluation Board?
2. Is there a compatible gate driver for this Evaluation Board that can operate at switching frequency of 100kHz.
3. Is there any voltage and current measurement sensors for this and how it can used for measurement purpose. Thanks

TBhatia

Hello, thank you for your message. A member of our technical team is looking into your questions and we will respond shortly. 

ArunA

Hello Hassan,

1) The CIL EVAL kits are meant to evaluate the switching performance (double pulse testing) of our module products and are not designed for continuous converter operation.

2) Selection of switching frequency depends on gate drive power supply, gate voltage swing and gate charge. This calculation is shown here on page 11 https://assets.wolfspeed.com/uploads/2021/05/cpwr_an46_cgd1700hb2m_una_application_note.pdf

From CCB032M12FM3 datasheet, Qg = 118nC, Delta V_PS = 19V (15 - (-4)).

At 100kHz switching frequency, the maximum gate drive power requirement (W) is far less than the gate drive power supply rating available on the gate drive board. This example calculation was shown for https://www.wolfspeed.com/products/power/gate-driver-boards/cgd1700hb2m-una/ but is also applicable to the other two partner gate drivers mentioned here.

3) A Current Viewing resistor is included on the CIL board for accurate current measurements. The Vds measurement is made with a high bandwidth high Voltage differential probe. More details on the two can be read in section 4 here.

Thank you,

Arun

TBhatia

Hi, I hope that this answered your question. I will close this discussion for now but if you have a follow up question, please "Start a New Discussion" and we would be glad to support you further.