I built a bench supply with a PIC as a DMM.
I have included my schematic below.
I know I probably should use a voltage reference but I really don't want to get into that right now.
Everything is built on a perf board. With the exception of the voltage divider which is currently on a Proto Board.
My problem is that the voltage constantly jumps in a .03 volt range. What is the best but easy way to cure this problem?
Can I do software averaging? If so, can someone suggest a algorithm?
Will I see some stabilization once I move the divider to the perf board??
I have included my schematic below.
I know I probably should use a voltage reference but I really don't want to get into that right now.
Everything is built on a perf board. With the exception of the voltage divider which is currently on a Proto Board.
My problem is that the voltage constantly jumps in a .03 volt range. What is the best but easy way to cure this problem?
Can I do software averaging? If so, can someone suggest a algorithm?
Will I see some stabilization once I move the divider to the perf board??
Attachments
-
30.4 KB Views: 45