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Time to design a all-round 5V metal detector?

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  • #31
    Originally posted by moodz View Post
    ....so you are sampling during TxON ;-) .... ...the current pulse rise time is fast enough ... but your pulse fall time looks a tad slow and overshot ...
    Yep, I don't care. The falling edge is just for recovery of energy.

    Interesting patent, but the flat current tops (and bottoms) are 90% of the Tx signal and have to be supplied by the battery. I use a short pulse of 20us with a a period of 1ms. Average current is 40mA at 1A peak.

    By the way, a while ago I tried to contact you by email for a collaboration. I guess you overlooked it.

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    • #32
      Originally posted by Teleno View Post
      Yep, I don't care. The falling edge is just for recovery of energy.

      Interesting patent, but the flat current tops (and bottoms) are 90% of the Tx signal and have to be supplied by the battery. I use a short pulse of 20us with a a period of 1ms. Average current is 40mA at 1A peak.

      By the way, a while ago I tried to contact you by email for a collaboration. I guess you overlooked it.
      ??? I thought I replied ... I will have another look.

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