flyback converter design using lnk623

PIXL is the tool we release to assist the design. The whole calaculation is proprietary information.

Now exactaly what should i do? mns how can  understand values...

also suggest me alternative for triple insulated wire in transformer designing

check if this app note helps. The design provide the first cut transformer design. modification on top of the paper is often seen according to applications.

https://ac-dc.power.com/sites/default/files/product-docs/an45.pdf

thanx i hv reffered same document it really helps me while designing

how to identify  flyback transformers primary and secondary n also pins, i  my tranformer 4 pins at primary out of one is

NC ant at secondary 4 pins are avilable so how could i differentiate them.

instead of 11dq06  i have used mur420 is  there any issue with output??

plz tell me its urgent

they are differnt diodes, you need to check the thermal of the diode, spikes on the diode to decide.

if you have the PIXL design file, it helps to understand the design.

i hv checked it is ok matchingNow at load m getting output 1.67V and at no load m getting some random voltage acros capacitor then how i remove this plz suggest me

sounds like your flyback does not work properly. Normally check your transformer build. check the primary current waveform as well.

Can i use design calculation of topswitch for designing linkswitch design that u have given in databook??

LNK switch does have its own PIXL design tools. They are similar, but suggest to use the LNK design supporting tools.

for 10W adapter smps can i use LNK626

depending opn your Vac and thermal management. Please see datasheet chart. PIXL design tool can flag any design issue for your paper design.