I am interested in using a power supply that provides 12A at 5V. It requires a minimum 3A load, however. I understand that could be achieved with a (5V/3A=) 1.7 Ohm load resistor placed between +5V and ground (possibly achieved by using larger-Ohm resistors wired in parallel). My question is whether there is a more efficient way of maintaining a load of at least 3A, so that the max load is not effectively reduced to 9A.
Let X be the load in amps. I would like to add some parts to the circuit that would create an additional load of 3-X amps (or 3A) when X < 3A, but add no load when X >= 3A. Any ideas?
If it's not obvious, I'm pretty new to this hobby.
Cary
Let X be the load in amps. I would like to add some parts to the circuit that would create an additional load of 3-X amps (or 3A) when X < 3A, but add no load when X >= 3A. Any ideas?
If it's not obvious, I'm pretty new to this hobby.
Cary