TAS5805MEVM: efficiency

Ella Zhang

Prodigy 330 points

Part Number: TAS5805MEVM

I wonder why the efficiency of the EVM in BD mode is higher than 1spw mode.

Thanks and best regards

over 5 years ago

0 Alix Wan over 5 years ago

TI__Genius 9995 points

Hi Ella,

Based on data collected in MTS board (not EVM board as the extra power consumption of external components), on the same configuration, efficiency of 1SPM is higher than that of ur 1SPW mode.

Hence, could you share more details with me?

Hardware setup
- Testing board?
- Load=?ohm
- The method you measure the current through PVDD and load.
Device setup

Fsw=?
BTL or PBTL?
How do you caculate the efficiency?

Regards,

Alix Wan

0 Ella Zhang over 5 years ago in reply to Alix Wan

TI__Prodigy 330 points

Hi Alix，

Load=8Ω
Fsw=786kHz
output power is measured by AP
input current is measured by multimeter

Thanks a lot for your kindly help~

0 Alix Wan over 5 years ago in reply to Ella Zhang

TI__Genius 9995 points

Hi Ella,

I will close this thread. Any more questions will be communicated off line.

Regards,
Alix Wan.

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TAS5805MEVM: efficiency