Hi,
I have in my observatory some low voltage and very low amperage consumers which need constantly to be powered so they do not loose the setup information.
Originally from the producer they come with batteries but as my setup is fix eg. I do not move the mounts anymore I decided to power them from 5V or 12V powerbricks, but as these consumers use only 3V I am doing it via a Trimpot as voltage splitter.
Is there a more convenient way to do it ? The Trimpot is 1K and it barely gets warm.
I know I could use fixed value resistors but I was too lazy to calculate the values . I first adjust it with no load and then I adjust the voltage under load.
Thanks for any suggestions
I have in my observatory some low voltage and very low amperage consumers which need constantly to be powered so they do not loose the setup information.
Originally from the producer they come with batteries but as my setup is fix eg. I do not move the mounts anymore I decided to power them from 5V or 12V powerbricks, but as these consumers use only 3V I am doing it via a Trimpot as voltage splitter.
Is there a more convenient way to do it ? The Trimpot is 1K and it barely gets warm.
I know I could use fixed value resistors but I was too lazy to calculate the values . I first adjust it with no load and then I adjust the voltage under load.
Thanks for any suggestions