Ok, probably a simple fix, not sure how to do it..
i have two power supplies on my project, both outputting 3V3, but one is designated to the uP and EEPROM and other Memory. the other is a 4A for screen and additional peripherals.
my question is a 2part i guess, some consideration leads me to believe i need to balance the power supplies, as theres analogue conversions, so if one is a few millivolts off, it wont be as accurate..
therefore, based on this, do i need to put a resistor or diode in linking the two power supplies? obviously the uP supply cannot backpower the additional peripherals, however the forward voltage drop of a diode would mean it wouldnt actually balance the supplies?
my question...
a) Do i need to balance the supplies?
b) If so, how do i go about it?
i have two power supplies on my project, both outputting 3V3, but one is designated to the uP and EEPROM and other Memory. the other is a 4A for screen and additional peripherals.
my question is a 2part i guess, some consideration leads me to believe i need to balance the power supplies, as theres analogue conversions, so if one is a few millivolts off, it wont be as accurate..
therefore, based on this, do i need to put a resistor or diode in linking the two power supplies? obviously the uP supply cannot backpower the additional peripherals, however the forward voltage drop of a diode would mean it wouldnt actually balance the supplies?
my question...
a) Do i need to balance the supplies?
b) If so, how do i go about it?