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Visitor II
June 24, 2024
Question

Buck coverter with viper115XS

  • June 24, 2024
  • 0 replies
  • 820 views

Hello,

I'm developing a buck converter exactly like the schematic below. The only difference is the STTHL06 (D2) diode in the feedback loop. In my case, I'm using an ES1J diode, which has a 35ns recovery time. My problem is the output voltage, which shows a lot of ripple when I use the ES1J, but when I replace the ES1J with an RS1M, which has a 500ns recovery time, the problem disappears. Why does this happen? I appreciate any help.

 

viper.png