PMP21999: Primary and secondary resonant capacitor boards

Bavly S.

Part Number: PMP21999

Hello

I wonder how the primary Cr module/secondary Cr modules are placed on the board. The assembly is not clear, it is appearing in the layout that the capacitors are into the magnetic core of the transformer, would appreciate some clarification regarding the assembly.

drive.google.com/.../view

The connection is not clear also; according to the schematic design note:

9. Net Leg_1_Prim and Crp_1 are shorted via boards to XFMR pin connections

10. Net Leg_1_Sec and Crs_1 are shorted via boards to XFMR pin connections.

Thanks in advance

over 4 years ago

+1 Sheng-yang Yu1 over 4 years ago

TI__Expert 4830 points

Hi,

If you check the test report section 2.1.2 side view, you will find there is a small PCB on the leg of the transformer where the resonant capacitors are mounted.

Both primary Cr module and secondary Cr module are mounted in the same way.

Regards,

Sheng-Yang Yu