AnsweredAssumed Answered

TEA19161Control of turn ratio (TEA19161匝比不同的设计方法)

Question asked by zh1997 peter on Dec 4, 2018

TEA19161Control of turn ratio

 

 

TEA19161

Design of Resonant SMPS Design Tool

Example: input: 390VDC OUPUT: 24V7.5A transformer turn-to-turn ratio: 34:4:4 748UH Lr:115Cr:433

Actual half-bridge calculation:34:4:4  (390/34)*4T/0.5=22.9V?

32:4:4 is more in line with turn ratio: (390/32)*4T/0.5 = 24.37V?

Which is correct?

TEA19161匝比不同的设计方法
用谐振式SMPS设计工具设计时的匝比与常规计算差异产生的原因与哪个更符合实用?
例:input:390VDC  OUPUT:24V7.5A   变压器匝比为:34:4:4 748UH Lr:115 Cr:433
实际用半桥计算:(390/34)*4T/0.5=22.9V
而32:4:4更符合匝比:(390/32)*4T/0.5=24.37V
匝比控制问题
哪个正确?

Outcomes