Inductor and Diode current Calculations for Dual Boost PFC

[dev_ss]

Hi All,

I am stuck with PFC design, can you please suggest any design document for Inductor Current calculations of Dual boost PFC Converter using Bridge.

regards,

[btsshirt]

Hello, I was using a TOSHIBA VFS15 Inverter with an IGBT module FP15R12W1T4 inside. After more than 4 months of smooth operation, the inverter unit suddenly blows up. Upon further inspection, I find that the diode (on the S and T terminals) has also blown, and the pin even appears to be shorter than typical. Let's talk about the possible causes of the blown diode. I wasn't entirely confident that I could repair this inverter with a brand-new IGBT module before I knew exactly what had caused the explosion.

[ShifangZ_26 · Accepted solution]

Infineon High efficiency 3kW bridgeless dual boost PFC evaluation board, this evaluation board shows how to design a high power density 3kW 90kHz bridgeless dual boost power factor correction (PFC) boost converter working in continuous conduction mode (CCM). More details information could be found in the link: https://www.infineon.com/cms/en/product/evaluation-boards/eval_3kw_db_pfc_c7/  

If you click the Application Notes of this Eval board, you will get details calculate formula for Inductor Current Calculation. LINK: https://www.infineon.com/dgdl/Infineon-EVAL_3KW_DB_PFC_C7-AN-v01_00-EN.pdf?fileId=5546d4625e37f35a01...   

[Kieran_Pan]

Hello，

You could know more from our design guide for Boost Type CCM PFC from the following link:
 
https://www.infineon.com/dgdl/Infineon-Design_guide_boost_type_CCM_PFC_ICE3PCSxx-AN-v02_00-EN.pdf?fi... 

Best regards,
Kieran