johankj
New Member
Say you had 4 x 1.5V (AA) batteries in series, which you wanted to regulate down to about 5V (roughly, like not higher than 5.1 but not lower than, say 4.5), which of these would be of preference with regard to battery life, quality of regulated output, size/cost, any other advantage/disadvantage?
1. 5.1V Zener-diode in parallel.
2. Small-signal diodes in series.
3. A voltage regulator, like a 7805.
4. Other suggestions?
Brand new AA batteries kick out at about 1.6V, which is 6.4V, and then degrade from that. I want to maximize the life-time of the batteries, while maximizing their usable voltage-range.
1. 5.1V Zener-diode in parallel.
2. Small-signal diodes in series.
3. A voltage regulator, like a 7805.
4. Other suggestions?
Brand new AA batteries kick out at about 1.6V, which is 6.4V, and then degrade from that. I want to maximize the life-time of the batteries, while maximizing their usable voltage-range.