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Forum Post: RE: LM5022 - Wide Input - Transformer design verification

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Hi, 

The power supply is ‘starting’ at 35VAC or 45VDC but not at the designed 17VDC. (this start up is on no-load)

Subsequently, the PSU operates up to the high line i.e. 265VAC

 

With ref to the schematic (attached herewith) do the R2, R7 , R39 resistors need to be altered ? Or does the transformer need to be changed ?

(Please visit the site to view this file)

Regards   Atul Bhakay


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