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SMPS using UCC28600

V V S Narayana Jagarapu
Prodigy 10 points
Other Parts Discussed in Thread: UCC28600

Hi,

 I designed an universal SMPS using UCC28600 for industrial application.it is 24V/4.2A SMPS.i am getting fully regulated output under diffrerent loading conditions.

after that we conducted EMI/EMC tests.it passed all EMI tests except EFT-Electrical fats transient(Burst)test @ 4kV.

During EFt test the outputting is coming down.once EFT is over output is shooting up to normal 24V.

 

Can somebody help in passing the EFT test for the power supply.