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UCC25600 变压器设计



我想做一款LLC的电源,输入400-600VDC.输出27V 100A。更具TI提供的UC25600计算表格,计算变压器和谐振腔参数。有些问题想请教大家:

1  表格中M和Qr怎么选取?

2 按照计算出来的漏感26uh。励磁电感111uh。我使用的是两幅EE55的磁芯,原边12圈,副边1圈。垫气隙后原边电感量106uh,漏感30uh。这样我还需要外加谐振电感吗?

3 LLC的变压器绕线有什么特殊之处吗?