abhignans
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hello,
i am using 89s52 micro controller to drive a individual circuit,.i.e i have to power a raspberry pie using 89s52.
the raspberry needs 5 volts,1amp miniimum to power it
i have used a relay to power it but in the cirvuit i have limitation for space
so i have opted for mosfet IRF540 with 4n35 for optical isolation
but when i use this i get only 4.45 volts finally by which the raspberrypie malfunctions
please suggent me a method to give out exactly 5volts 1amp output to be interfaced to the microcontroller
thanks in advance
i am using 89s52 micro controller to drive a individual circuit,.i.e i have to power a raspberry pie using 89s52.
the raspberry needs 5 volts,1amp miniimum to power it
i have used a relay to power it but in the cirvuit i have limitation for space
so i have opted for mosfet IRF540 with 4n35 for optical isolation
but when i use this i get only 4.45 volts finally by which the raspberrypie malfunctions
please suggent me a method to give out exactly 5volts 1amp output to be interfaced to the microcontroller
thanks in advance