Switching power supply input voltage / frequency explained

Switching power supply has been used in various field applications all over the world. Depending on type of product, input source of either alternating current (AC) or direct current (DC) is acceptable. Prior to operation of the power supply, users should confirm the following: the type of input voltage (AC or DC), the range of [...]

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AC (Alternating Current)

A periodic current the average value of which over a period is zero. Unless distinctly specified otherwise, the term refers to a current which reverses at regularly recurring intervals of time and which has alternately positive and negative values.

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