samEEEf
Full Member level 2
I've a 12v sealed lead-acid battery. Now I want to make a charger to charge it from our line voltage (230V AC). From my general knowledge, I can use a step down transformer (primary 230v, secondary 12v-0v-12v) as center tapped full wave rectifier to charge. Which is very preliminary circuit.
I've a spare PC power supply unit. Can I use the it to charge the 12v lead acid battery?
12v output of PC power supply cannot be used to charge the 12v battery as a 12v battery needs more than 12v dc to charge. So, can I use PC power supply's 12v in addition with 3.3v(or 5v) to charge it? Can I add the two voltage to get higher voltage to charge it like 12+3.3=15.3v?
I've a spare PC power supply unit. Can I use the it to charge the 12v lead acid battery?
12v output of PC power supply cannot be used to charge the 12v battery as a 12v battery needs more than 12v dc to charge. So, can I use PC power supply's 12v in addition with 3.3v(or 5v) to charge it? Can I add the two voltage to get higher voltage to charge it like 12+3.3=15.3v?