OK... who can help me with this (I hope) simple problem.
I need to run 2 devices from a 5V DC power adaper.
Device A uses 5V DC - device B uses 3V DC. Device B will run for 8 hours on 2 AAA batteries (3 V in series).
What size resistor do I need to drop voltage down on the power supply to 3V for device B?
Thank you
Tom
I need to run 2 devices from a 5V DC power adaper.
Device A uses 5V DC - device B uses 3V DC. Device B will run for 8 hours on 2 AAA batteries (3 V in series).
What size resistor do I need to drop voltage down on the power supply to 3V for device B?
Thank you
Tom