how does using switching regulators in place of linear regulators effect battery life??
If i use a 7805 to get 5v from 12v (2 Ah) battery consuming a current of 500mA, the battery should last 2A/0.5A = 4 hours RIGHT???, the thing that i do not understand is that the linear regulator is wasting the other 7v in the form of heat, shouldn't this effect the battery life as well??
If i use a 7805 to get 5v from 12v (2 Ah) battery consuming a current of 500mA, the battery should last 2A/0.5A = 4 hours RIGHT???, the thing that i do not understand is that the linear regulator is wasting the other 7v in the form of heat, shouldn't this effect the battery life as well??