Suppress of EMI in a Synchronous Buck Converter

Status
Not open for further replies.

sers000

New Member
Hey,

I have been trying to minimize the noise in the circuit. I have applied a snubber consisting of a resistor and a capacitor after the switching components and the ringing effect as a result of switching has been greatly minimized. Now I am trying to minimize EMI levels to a value less than 25dBuV between 10MHz to 300MHz. What methods would you guys suggest?
Currently at the highest harmonic, its at 30 dBuV:


 

Attachments

  • SER2918H-103KL.asc
    828 bytes · Views: 174
  • Sync_1OPA_Feedback.asc
    5.6 KB · Views: 172
  • T521X156M063ATE035.asc
    1.7 KB · Views: 177
  • SER2918H-103KL.asy
    284 bytes · Views: 173
  • T521X156M063ATE035.asy
    267 bytes · Views: 167
Last edited:
Status
Not open for further replies.
Cookies are required to use this site. You must accept them to continue using the site. Learn more…