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Sriram_07
Level 2
Level 2
10 questions asked 25 sign-ins 10 likes given

Hello, 

In the infineon 22kw inverter reference design, set of ceramic caps are used as filters. My doubt is whether 4 caps are required and what is the need to have 3 x 0.25uf caps and 1 x 470 nf cap. Is it ok if i choose 2 caps with equivalent capacitance equal to the below combination.

 

Thank you.

1.png

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1 Solution
Akhil_B
Moderator
Moderator
Moderator
250 sign-ins First question asked 50 solutions authored

Hi @Sriram_07 

Thanks for posting on the Infineon community page.

It's better to use the capacitors in this manner. This helps to bypass the high-frequency noise.

BandaruAkhil_0-1668424433359.png

Also, refer to the attached link for DC link capacitor sizing.

 

Best Regards,

Akhil Kumar.

 

 

 

 

 

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1 Reply
Akhil_B
Moderator
Moderator
Moderator
250 sign-ins First question asked 50 solutions authored

Hi @Sriram_07 

Thanks for posting on the Infineon community page.

It's better to use the capacitors in this manner. This helps to bypass the high-frequency noise.

BandaruAkhil_0-1668424433359.png

Also, refer to the attached link for DC link capacitor sizing.

 

Best Regards,

Akhil Kumar.