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STEVAL-IME013V1(Ultrasound Pulser Waveform Demo)output waveforms has the sharp burrs.

BBing.1
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I try to generate pulses using STEVAL-IME013V1.The power supply information is as follows:

  • VDD=+5V DC
  • VSS=-5V DC
  • HVM=+10V DC
  • HVM_CW=-10V DC

Actually the board can generate the preset waveforms by the power supply.Show as the figure.

But I am curious at the sharp burrs phonemon.The sharp burrs amplitude even exceeds HVP(10V).

How can I solve the problem?

0693W000007Cn7DQAS.jpg0693W000007Cn78QAC.jpg

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