how i choise transformer?

[mehdi hasan nezhad]

Posted on February 16, 2018 at 20:18

hi my name is mehdi . I'm using eDesignSuite for a Viper 27LN. how i choise transformer  with Transformer Specifications?

Transformer Specifications:

    fsw: 60 kHz - Isat ≥ 757 mA - Lp: 2.06 mH ± 10 % - leakage ≤ 3 %

    Primary: Ipk 617 mA - Irms 211 mA - Iavg 108 mA

    Aux: Ipk 189 mA - Irms 18 mA - Iavg 3 mA - Prim/Aux turn ratio 7.29

    Out 1: Ipk 3.24 A - Irms 1.27 A - Iavg 750 mA - Prim/Out 1 turn ratio 7.76

    Out 2: Ipk 3.24 A - Irms 1.27 A - Iavg 750 mA - Prim/Out 2 turn ratio 7.76

[Patrizia BELLITTO]

Posted on February 19, 2018 at 10:53

Hello Mehdi,

using VIPer27 flyback isolated design on eDesignSuite, a commercial transformer from Wurth should appear, if your specifications meet specific requirements. Could you please specify input and output values and if  you have applied some customizations on your design?