I am new here and will try to be as specific as possible.
I started doing all kinds of stuff in my car, and wanted to add some led stripes in the interior. I want however that the led stripes are dimming with the rest of the interior lights.
I have found the dimmer line, the voltage varies from 0V (lights out) to 10V -> lights at 100%.
I have tested this with simple LEDs and 4.7 kOhm resistors and everything works correctly. However a whole led stripe will consume considerable more power and I want to make sure that the dimmer doesn't overload / burn.
So I thought I'd build a current amplifier connected to the main 12V of the car (battery line) which takes whatever input voltage the dimmer gives, routes that to the output but with increased current. I've measured the LED stripes at 12 V (10 A should be more than enough to ensure good operation at all voltage levels).
My question is :
How is this circuit called? Can you give me the correct search terms?
Searching for 12V DC amplifier points me to audio amplifier which isn't what I need.