preetikarki
Newbie level 5
i want to make a battery based regulated power supply, which gives 3 dc output voltages 5v/1 amp, 12v/2 amp and 24v/2 amp.i want to know that how can i calculate the value of batteries at input, as i want this supply to work for 1 hour at full load.
i guess 5v/1 amp=5watt
12v/2amp=24watt
24v/2amp=48watt. total=77 watt
if i use 24v, 7 amp(two 12v/7 amp battery in series)battery at input,then
77/24=3.2 amp
7amp hour/3.2 amp=2.18 hour
???? is this the right method or please make me right.
i guess 5v/1 amp=5watt
12v/2amp=24watt
24v/2amp=48watt. total=77 watt
if i use 24v, 7 amp(two 12v/7 amp battery in series)battery at input,then
77/24=3.2 amp
7amp hour/3.2 amp=2.18 hour
???? is this the right method or please make me right.