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The design and equations to limit the current through the relay

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shanishp

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hi
i need to connect a device whose current rate is 450 mA at the end of microcontroller.I have selected a relay to switch the same device.but i need to to ensure that proper current flow is there,
please help me by giving the design and equations to limit the current through the relay for proper working .help me please
 

Re: relay

try using a current diode... which is nothing but a diode connected MOS... dont forget the free-wheeling diode....
 

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