klpang1
Junior Member level 2

Dear all,
I need to design the above cc to power my board. I have on hand an old TNY278 circuit, but the datasheet has not been too helpful in assisting inexperience ppl like to to select the components (specifically the transformer).
My questions -
1. Is the TNY278 still being used nowadays? Are they other similar components like these with better documentation?
2. What kind of transformer should I used? Must I use pulse transformer?
3. Should the transformer be 1:1 or according to the voltage output we need? for example 1:0.1?
Thank you.
Best rgds,
pang
I need to design the above cc to power my board. I have on hand an old TNY278 circuit, but the datasheet has not been too helpful in assisting inexperience ppl like to to select the components (specifically the transformer).
My questions -
1. Is the TNY278 still being used nowadays? Are they other similar components like these with better documentation?
2. What kind of transformer should I used? Must I use pulse transformer?
3. Should the transformer be 1:1 or according to the voltage output we need? for example 1:0.1?
Thank you.
Best rgds,
pang