Hi
My customer is using TPS2419 to combine 1 1 redundant power supplies. when these two power supplies are working, there are whistlers from power supplies. If we turn off any of them, the whistlers will disappear.
The specifications of these two power supplies are same: AC 220V Input, DC 12V/10.5A output. when two power supplies ORing, the load is 12 v / 10. 5A.
120W AC-DC Power Supply Sch.pdf
Please give any suggestion to query.
Thanks
Star