UC2842A: UC2842A

Hi！

I designed a 30W flyback switching power supply using UC2842A. Now I want to increase the power of the switching power supply to 60W on the original basis, by changing the duty cycle. Can you help me match the parameters of this chip?

Thank

Sheldon

Johnsin Tao：

HI

    如果输出电压不变，电流增加达到60W的话，主要改变变压器，你可以在网上找一下flyback架构的变压器计算方法。（TI这边没有这个芯片的具体设计计算指导）

或者借助TI在线仿真webench.