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超級狗 发表于 2016-5-5 08:100 X% i% t' J3 R. V7 G% P! I' w
電源供應器最小負載(Minimum Load)?
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有些電源供應器需要一個最小負載(Minimum Load),輸出低於這個 ...
. H' [6 C7 _5 ]" bTI LM117 / LM317 Datasheet
: K7 p# B* }$ LBecause the 100-μA current from the adjustment terminal represents an error term, the LM317-N was designed to minimize IADJ and make it very constant with line and load changes. To do this, all quiescent operating current is returned to the output establishing a minimum load current requirement. If there is insufficient load on the output, the output will rise.
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Minimum Load = 3.5mA Typical ~ 5mA Maximum
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