TPSF12C1: Zaef(S) and Twlwd(S) formula

mac he

Prodigy 20 points

Part Number: TPSF12C1

Tool/software:

Hi Timothy

How are you!

1. I would like to know how the formula (1) in datasheet of TPSF12C1 is derived, Could you explain the process to me?

2.Are formula 1 in datasheet of TPSF12C1 and formula 25 in article of How Active EMI Filter ICs Reduce Common-Mode Emissions In Single- And Three-Phase Applications (Part 4): Loop-Gain Analysis the same, just represented differently?

Thanks!

Best regards

Mac.He

4 months ago

0 Naresh Adepu 4 months ago

TI__Genius 11880 points

I received your question, will get back to you

thanks and regards

naresh

0 Naresh Adepu 4 months ago in reply to Naresh Adepu

TI__Genius 11880 points

we will get back to you before end of day today.

Thanks and regards,

Naresh

0 mac he 4 months ago in reply to Naresh Adepu

Prodigy 20 points

Hi Naresh,

I haven't received your reply to this question.

Thanks!

Best regards

Mac.He

0 Naresh Adepu 4 months ago in reply to mac he

TI__Genius 11880 points

Hi Mac,

we will get back to you today

Thanks and regards

0 Naresh Adepu 4 months ago in reply to Naresh Adepu

TI__Genius 11880 points

Hi Mac,

The formula (1) in datasheet is ZAEF - the AEF impedance. It is the total looking in impedance from above the CINJ capacitance.

The other formula is the loop gain expression. Both are not same.

For the loop gain expression on how it is derived, could you please refer to IEEE Xplore Full-Text PDF:

Thanks and Regards

naresh

0 mac he 4 months ago in reply to Naresh Adepu

Prodigy 20 points

Hi Naresh,

I haven't an IEEE Xplore account, could you please send the article to my email directly? thanks very much!

my email:mac.he@aei.com

Thanks!

Best regards

Mac.He

0 Naresh Adepu 4 months ago in reply to mac he

TI__Genius 11880 points

Sent it to you mac he

Thanks and regards,

naresh

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TPSF12C1: Zaef(S) and Twlwd(S) formula