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NXTY_Yoshimura
Level 4
Level 4
Distributor - NEXTY (Japan)
10 solutions authored 10 replies posted 50 sign-ins
Dear all,

Regarding FP50R12N2T4 and FP75R12N2T4,
do you have Converter Power Loss Curve , which is the “ AVERAGE FORWARD POWER DISSIPATION “ of attached file ?

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

Hi,

 

    Calculating the power loss curve is not possible because it is highly dependent on current waveform seen during operation. 

Therefore, as a first step, we would have to do the calculation manually and with a theoretical approach. 

For power loss calculation on the rectifier side (per diode), please use the following formula. 

Abhilash_P_2-1638271356699.png

Abhilash_P_3-1638271417262.png

 

*Iav(per diode)=0.33*Idc

*Idc --> From customer operation 

*F --> depending on the current waveform. For B6 configuration (our case), and if we assume ideal induction loads we can consider a Form Factor of 1.73. 

Abhilash_P_4-1638271444951.png

 

Regards,

Abhilash P

View solution in original post

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

Hi,

 

    Calculating the power loss curve is not possible because it is highly dependent on current waveform seen during operation. 

Therefore, as a first step, we would have to do the calculation manually and with a theoretical approach. 

For power loss calculation on the rectifier side (per diode), please use the following formula. 

Abhilash_P_2-1638271356699.png

Abhilash_P_3-1638271417262.png

 

*Iav(per diode)=0.33*Idc

*Idc --> From customer operation 

*F --> depending on the current waveform. For B6 configuration (our case), and if we assume ideal induction loads we can consider a Form Factor of 1.73. 

Abhilash_P_4-1638271444951.png

 

Regards,

Abhilash P

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