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发表于 2010-4-3 21:54:14
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P=I.V ,if supply Power is fixed ,I=P/V .
if P=10W, Vout=1V, Current can supply 10A.
Vout=10V, Current only 1A.
IN 10A current case ,circuits pass device(power MOS) must be pass 10A .and V-drop must be low than 0.3V-0.1V |
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