snarfer
Newbie level 3
battery powered 0-10v output
I'm trying to design the simplest possible circuit to generate a variable 0-10vdc output from a battery, the smaller the better. There is essentially no load, as the voltage is simply a signal for use in controlling an electronic dimming fluorescent ballast. Ideally, the battery would last a very long time.
I considered simply attaching a potentiometer to 4 AAA batteries in series, but this might result in inconsistent voltages for a given position of the potentiometer as the batteries die, and between identical devices. So there needs to be some accurate voltage regulation in this circuit.
Any help would be appreciated.
I'm trying to design the simplest possible circuit to generate a variable 0-10vdc output from a battery, the smaller the better. There is essentially no load, as the voltage is simply a signal for use in controlling an electronic dimming fluorescent ballast. Ideally, the battery would last a very long time.
I considered simply attaching a potentiometer to 4 AAA batteries in series, but this might result in inconsistent voltages for a given position of the potentiometer as the batteries die, and between identical devices. So there needs to be some accurate voltage regulation in this circuit.
Any help would be appreciated.