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电源设计时应注意那几个方面？
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电源设计时应注意那几个方面？
On PCB Layout
1. Check Power trace width if suitableactual current limited
typically40mil trace width: 1A current
2. Check power trace if near the high freq. clock trace . Far away clock could be fine.
3. Min.Power trace loop
4. Different power plane don't overlap , it could cause noise couple.
On Circuit
1. Max. input voltage and workable input voltagerange ,
if need over-voltage protection circuit?
2. Max. load current ?
3. effeciency and design the power type :
DC/DC ( Boost ,Buck , Fly-back ,...etc )
LDO
4. component package
5. cost / size
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