I am working on RDR-291 150W circuit.
I have replaced LNK 420 by LYT 4228 and developed the Transformer ETD 29 using PI Expert Software.
I hace developed five prototypes and achieved the current 2.1A in both channels.
but in 5 prototypes I observed that Output current not in +-5% regulation. It is sometimes more than 10 % range.
What can I do to achieve +-5% regulation.
and also I have developed the Transformer in House so I am facing problem of one transformer giving 2.1A and same PCB with another transformer 2.3 A another transformer 1.9A .....
This type of Issue I am facing. All transformers Inductance is in within range. Leakage Inductance is also well within range.
Please provide the soution to achieve consistency in current and transformer.
Also guide for the transformer measurement techniques whether I am doing wrong?