LM5181: lm5181 SNVC241A Calculation tool issue

TecnoLAB

Part Number: LM5181

Hello,

I haven't lot of experience in flyback converter, I have to develop flyback with following characteristics:

input 20-30V

output 100V 0,075A

I prefer to use flyback with no-opto, I choose LM5181.

I try to use snvc241A calc tool but when I change transformer turns ratio to 1:2 or 1:3 1:4 it can't calculate all parameters.

Could you help my with this project?

Thank you

I attach here calculator tool calculator shet

0 Daniel Li14 over 2 years ago

looks like my excel work right with the files you shared

have you enable he macros

Thanks

0 TecnoLAB over 2 years ago in reply to Daniel Li14

Yes, macros are enabled, but it is not working on office business 2016.

I can use it with another pc

0 Daniel Li14 over 2 years ago in reply to TecnoLAB

pls use another version of excel, and try again

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