CrackBadger
New Member
I just got into voltage dividers but I don't understand what they mean by it.
**broken link removed**
What exactly is the point of this circuit here? Lets say theres an initial 10V from the power source. At first I have R1 (potentiometer) set so it cuts the voltage down to 2V. Lets say R2 is an LED. Would I basically use R1 as a dial to make the LED brighter or darker by lowering and raising the resistance?
Or lets say I had a red LED attached to the circuit before R1. That would mean the red light would be constantly lit by the 10V but at the same time I would vary the brightness of the green light (R2).
Is that the idea of voltage dividers? I'm reading the Art of electronics and its giving good examples but they're explaining the concept with things I haven't learned yet like signal in, signal out etc.
What is a signal? AC voltage? Also they mention a load resistor. Whats that? And finally what is a reference voltage?
**broken link removed**
What exactly is the point of this circuit here? Lets say theres an initial 10V from the power source. At first I have R1 (potentiometer) set so it cuts the voltage down to 2V. Lets say R2 is an LED. Would I basically use R1 as a dial to make the LED brighter or darker by lowering and raising the resistance?
Or lets say I had a red LED attached to the circuit before R1. That would mean the red light would be constantly lit by the 10V but at the same time I would vary the brightness of the green light (R2).
Is that the idea of voltage dividers? I'm reading the Art of electronics and its giving good examples but they're explaining the concept with things I haven't learned yet like signal in, signal out etc.
What is a signal? AC voltage? Also they mention a load resistor. Whats that? And finally what is a reference voltage?
Last edited: