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LM34936-Q1: Inquiry about current waveform when input / output voltage is similar

Part Number: LM34936-Q1
Other Parts Discussed in Thread: PMP20660

Hi team

We have constructed a battery charger circuit for CC/CV using LM34936-Q1.

When the input and output voltage are similar, I noticed a strange part of the current waveform.

  • Condition at abnormal waveform
    • Input voltage : 12.5~13.5V
    • Output voltage : 13.5V
    • Waveform

  • When the waveform is enlarged

As shown above, three types of waveforms are output.


  1. Please explain the above waveform.
  2. Can you improve these waveforms?

Thank you