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https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1250485/lm5021-power-supply-of-lm5021
LM5021的电源是否只能来自变压器的初级侧？
Vin 是否可以从次级侧获取功率？
如果 LM5021从次级侧获取电源、会发生什么情况？
Luke、您好！
如果直接供电、则会超出隔离栅。 辅助绕组供电通常是为 IC 供电的最便宜且最高效的方式。
我希望这可以回答您的问题。
