RoboWanabe
Member
Hi I have a Farnell E30/1 power supply with a -V rail, a +V rail and a GND rail.
I was under the impression that if i set the voltage on the power supply to 18v and then measure between GND and -V i would get -9V and between GND and +V i would get +9V. But when i measure the GND rail seems to be all over the place and im not getting a clean voltage out.
Please somebody help me i need to power my Op-amp circuit with a negative rail and positive rail? would like to test with my power supply.
Also does anybody know how to create a dual rail supply using batteries instead?
Thanks in advance
Red
I was under the impression that if i set the voltage on the power supply to 18v and then measure between GND and -V i would get -9V and between GND and +V i would get +9V. But when i measure the GND rail seems to be all over the place and im not getting a clean voltage out.
Please somebody help me i need to power my Op-amp circuit with a negative rail and positive rail? would like to test with my power supply.
Also does anybody know how to create a dual rail supply using batteries instead?
Thanks in advance
Red