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variac [2018/11/26 15:36]
tggzzz
variac [2018/11/29 23:07] (current)
tggzzz
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 The problem with using it with SMPSs is that SMPSs are designed to deliver the rated //power// output. Clearly the SMPS's input power must be the same as its output power (give or take the efficiency!). Hence if the input //voltage// is abnormally low, then the input //current// will be abnormally //high// - and that can **destroy the SMPS's internal components**. The problem with using it with SMPSs is that SMPSs are designed to deliver the rated //power// output. Clearly the SMPS's input power must be the same as its output power (give or take the efficiency!). Hence if the input //voltage// is abnormally low, then the input //current// will be abnormally //high// - and that can **destroy the SMPS's internal components**.
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