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Inrush current, input surge current, or switch-on surge is the maximal instantaneous input current drawn by an electrical device when first turned on.. x) }2 X M3 p/ u
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The main cause is the current was used to charge into capacitors.
& `" e' o1 E8 f0 o. p) [" QTo reduce this problem, I often don't use a TVS. Instead I always use a inrush current limit circuit like this:5 v# {8 F5 n$ @! V5 u5 H$ a
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( p: P9 V) _ t3 p @/ UFor detail infos and how it work, please read attached document.
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