KansaiRobot
Member
Hello
I have always been told that if we are using a circuit with two different voltages (say 5V and 12V) we should as much as possible separate the grounds.
What happens if instead of two power sources we use only one (say 12V) and some circuit involving a regulator to generate the other (5V) (something like a DC-DC)
say:
Is it ok now to use just ONE GROUND connection for both 5V and 12V circuits???
Thanks in Advance
Kansai
I have always been told that if we are using a circuit with two different voltages (say 5V and 12V) we should as much as possible separate the grounds.
What happens if instead of two power sources we use only one (say 12V) and some circuit involving a regulator to generate the other (5V) (something like a DC-DC)
say:
Code:
12V--------------------------[78L05]-----------------------5V
| | | | |
== == | == == (capacitors)
| | | | |
GND---------------------------------------------------------------
Thanks in Advance
Kansai