I am using ADuM4223ARWZ in Full bridge dc-dc converter for one of my application.
I found noise signals present in Gate Pulses output from ADuM4223 which are coupled back to input PWM pulses
as shown in snapshot.Also,there is significant drop in supply voltage +15V.Pls refer the circuit schematic attached.
This happens actually when i am loading my converter.
Full bridge dc-dc converter specification :
i/p voltage : 48V
o/p voltage : 400V
Switching frequency : 100 kHz
I tried by increasing the capacitance at gate driver output but still the gate driver power supply drop(around 2V)
Kindly help to solve the above issues.