I have a 48 volt, 7 amp PS and need to drop down to 12 volts to run two 12 volt 60mm cooling fans each drawing 20ma. I know a LM7812 wont work and think maybe a simple 2 resistor voltage divider will do it.
Can someone advise what resistor values and wattages are required ?
The 48v PS is in my project case with very little room left and this PS is required for the main supply of my project, I just want to add the cooling fans to keep the case cool.
Thanks,
Steve
Can someone advise what resistor values and wattages are required ?
The 48v PS is in my project case with very little room left and this PS is required for the main supply of my project, I just want to add the cooling fans to keep the case cool.
Thanks,
Steve