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keni_4440091
Level 7
Level 7
500 replies posted 100 solutions authored 50 solutions authored

Dear Supporter

I want to translate the following KBA. Please confirm to my work.

Hidden adaptive hysteresis concept of magnetic speed sensor TLE4922

Regards,

Nino

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1 Reply
Yaran_W
Moderator
Moderator
Moderator
250 replies posted 100 solutions authored 25 likes received

Hi Nino,

Hidden hysteresis means described functionality with two hysteresis threshold not visible at the output during
normal operation.
Adaptive hysteresis describes an adapting hysteresis level depending on the amplitude of the magnetic field of
the last detected teeth.

In TLE4922 the hysteresis threshold is calculated as 12.5%-value of the last peak-to peak-value from minimum to maximum. Positive hysteresis threshold is switching threshold + 12.5% of last amplitude.

Negative hysteresis threshold is switching threshold - 12.5% of last amplitude.

 

WangYaran_0-1652324039545.png

more details you can find below:

https://www.infineon.com/dgdl/Infineon-TLE4922_user_manual-UserManual-v01_01-EN.pdf?fileId=5546d4625...

 

yaran

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