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relay MOSFET short circuit protection

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yassin.kraouch

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Hi,

i am a bit confused on short circuit protection, i don't know how to do this, i have to use relay or MOSFET, i don't know how this circuit will work and, which is the best,

best regards
 

srizbf

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you have to tell more about your intended application and the circuit diagram be shown.
then any suggestion from members can come.
 

yassin.kraouch

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just want to have a general idea about the difference between MOSFET and relay,
 

srizbf

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a mosfet can act like a relay.(switch--on/off)
relay has more time delay than mosfet.
but relay can switch higher current than mosfet , with less cost.

you require appropriate circuitry for mosfet to switch.

there are many more... but these are few .

what is your intended application ?
 

Zanderist

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MOSFET's suffer from field effect(I don't think this is the right term), the capacitance of your skin could activate the circuit when you touch it.
 

yassin.kraouch

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i will use this protection in a car, for example if light are short circuit then the supply voltage should protect the circuit
 

umesh49

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If this is only for over current protection during short and temp requirement is less than 85C then you can search for a ressetable fuse, else use a P-type FET with gate to be controlled by some over current protection circuit.
 

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