PMP7391: Simulation file

Ernest Yong

Part Number: PMP7391

Hi Team,

Would like to check with you if we could get the simulation file(Tina) for PMP7391? Also, is there any Excel based or Mathcad based design calculators for PMP7391?

Many thanks.

Best Regards,

Ernest

over 2 years ago

0 Robert Taylor1 over 2 years ago

TI__Expert 6670 points

Hi Ernest,

I checked and we do not have a simulation file specific for this design. I would suggest to use power stage designer to calculate the stress on the components.

Thanks,

Robert

0 Ernest Yong over 2 years ago in reply to Robert Taylor1

TI__Expert 4780 points

Hi Robert,

Thank you for your response.

However, active clamp forward is not supported by many software. If simulation file is not available then Excel or Mathcad based design calculation tool would be good too.

Please let me know if we could provide.

Best Regards,

Ernest

0 Robert Taylor1 over 2 years ago in reply to Ernest Yong

TI__Expert 6670 points

Hi Ernest,

Please use the power stage designer tool from TI.

https://www.ti.com/tool/POWERSTAGE-DESIGNER

Thanks,

Robert

0 Ernest Yong over 2 years ago in reply to Robert Taylor1

TI__Expert 4780 points

Hi Robert,

Thank you. However, with 390VDC input and 24V/48V/60V – 300W output modules, my major concern is the efficiency using AC Forward with High side. Most of the reference designs I checked are not claiming efficiency better than 92%. That is the major reason, my customer is looking for some design calculation file to estimate losses and component sizing, seems like power stage designer do not have the function (Please let me know if I miss out on anything in PSD). Their requirement is 95% + for efficiency.

Many thanks.

Best Regards,

Ernest

0 Robert Taylor1 over 2 years ago in reply to Ernest Yong

TI__Expert 6670 points

Hi Ernest,

I am going to loop in our Active Clamp Forward expert to see if he can help you to estimate the efficiency.

Thanks,

Robert

0 Ernest Yong over 2 years ago in reply to Robert Taylor1

TI__Expert 4780 points

Hi Robert,

Thank you. Is there any updates on this?

0 Brian King over 2 years ago in reply to Ernest Yong

TI__Intellectual 2885 points

Hi Ernest,

Sorry my delayed response. The PMP7391 design uses output diodes. If the diodes were replaced with synchronous rectifiers and careful redesign 95% should be possible with an active clamp forward.

However, an easier path to a solution might be to use an LLC based on some existing reference designs. Please see PMP20795 which seems to meet your requirements.

thanks,
Brian

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PMP7391: Simulation file