a magnetic coil design....

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ss_engg

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i have an assignment that have to design a small magnetic coil that should operate minimum at 5 Volt DC. and below 5 volt its should not be operated... So may some one one guide me how i start to design it as the given data is just 5 volt... how i decide that how many no of turns are required for it. please guide me the proper procedure of calculation... what parameters of coil required should be knowned..
 

Hi ss-engg
What ? a magnetic coil that can work at 5 volts ?? i guess that you want make something like a relay coil , isn't it ?
Best Wishes
Goldsmith
 

Hi ss-engg
What ? a magnetic coil that can work at 5 volts ?? i guess that you want make something like a relay coil , isn't it ?

that's actually not a relay coil.. but it also energize and not show a flag indication as the micro controller under voltage relay is at its normal operation...
as the voltage drop in micro controller undervoltage relay and fault occur the coil unenergized and show a flag indication that attach with coil through spring. so i have to designed such magnetic coil and that coli operate through PIC controller..
 

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