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TIDA-010210: TIDA-010210: DC Link capacitor calculation

Part Number: TIDA-010210

Tool/software:

Dear TI experts,

I was looking in to TIDA-010210 11-kW, Bidirectional, Three-Phase ANPC Reference Design. I found TI is using total 1200uF(8*150uF) DC link capacitor. 

1. How TI Arrived at this value? What is the equation behind this?.

2.  I am not seeing any film capacitor parallel with 150uF cap. How much ripple current flows through this caps? What is  the equation TI used?

Regards

Aneesh