Hi!
I have an electronics project that needs a current-adjustable power source in the range of maybe 0-1A.
I still have some 7808CT and KA7805 linear voltage regulators. Both their datasheets (linked below) say, that "these devices can be used with external components to obtain adjustable voltages and currents. "
I believe I understand that hooking up a potentiometer between the Output-Pin and the Adj.-Pin would do what I want, but the circuits I find usually have more components than that. How exactly would this work? Also, how would I calculate the potentiometer's resistance for a required maximum output current?
I'm sure this is an easy question, but I'm rather new to electronics.
Any help is much appreciated!
https://www.mouser.de/datasheet/2/308/MC7800-D-1773680.pdf
I have an electronics project that needs a current-adjustable power source in the range of maybe 0-1A.
I still have some 7808CT and KA7805 linear voltage regulators. Both their datasheets (linked below) say, that "these devices can be used with external components to obtain adjustable voltages and currents. "
I believe I understand that hooking up a potentiometer between the Output-Pin and the Adj.-Pin would do what I want, but the circuits I find usually have more components than that. How exactly would this work? Also, how would I calculate the potentiometer's resistance for a required maximum output current?
I'm sure this is an easy question, but I'm rather new to electronics.
Any help is much appreciated!
https://www.mouser.de/datasheet/2/308/MC7800-D-1773680.pdf