I designed a wide range (90Vac to 240Vac) sigle output 29Vdc 200W flyback.
It works fine in all conditions like:
a) 110Vac full load
b) 110Vac zero-load
c) 240Vac full load
But in the condition 240Vac zero-load the output start to goes up to 35Vdc and remains there.
To ensure that 29Vdc is guaranteed at 240Vac i have to put a 2W load on output.
Do you have an idea how to solve it without losing 2 Watts?
Many thanks and have a nice day.