Hi, All
But I want the opinion of a transformer expert.
A TI's competitor flyback maker seem to be bringing in a large transformer, saying that QR Flyback alone can deliver 93% efficiency @ 27 W for less understood customers.
But that customer want to make small adapter like 30W GaN Anker.
I want to talk to the customer, "With a small transformer such as the size of a 30W GaN USB PD adapter Anker, an efficiency of 93% can not be achieved with a simple QR Flyback IC."
Does someone have the data such as Transformer size vs efficiency at QR Flyback?