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Chileshe
Level 1
Level 1
5 sign-ins First reply posted First question asked

Hello Community

Please assist me with the formular for calculating the Number of Turns in the Primary and Secondary windings of the Low Frequency DC to AC Inverter Transformer design.

I need to design a 3KVA  low Frequency transformer. Input DC voltage is 24VDC, Output AC voltage is 230 and AC voltage power is 3KVA.

Please let me hear from you

Thanks

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1 Solution
Abhilash_P
Moderator
Moderator
Moderator
50 likes received 500 replies posted 250 solutions authored

Hi,

  Thank you for posting on the Infineon community. 

Can you please share detailed block diagram of the Inverter system. 

Is it same as the below attached block?,

Abhilash_P_0-1677135984737.png

This Application note  from Infineon depicts an example calculation for low frequency transformer. 

 

Regards,
Abhilash P

View solution in original post

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喜马拉雅之雪
Employee

E=4.44FNΦ(for sin waveform)

Φm=BS

F:   frequency(Hz)

N:  number of windings

B: magnetic induction intensity(T)

S: effective cross-sectional area of magnetic core(m2)

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Abhilash_P
Moderator
Moderator
Moderator
50 likes received 500 replies posted 250 solutions authored

Hi,

  Thank you for posting on the Infineon community. 

Can you please share detailed block diagram of the Inverter system. 

Is it same as the below attached block?,

Abhilash_P_0-1677135984737.png

This Application note  from Infineon depicts an example calculation for low frequency transformer. 

 

Regards,
Abhilash P

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Hello Abhilash.

Thanks so much for your reply.

Yes its as the attached block (SOHO) application note. I have not seen transformer Primary and Secondary number of turns calculation examples and thats my need.

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