On the road again
OK I get it.
So here is the deal. It's all about power, not voltage. So power = current X voltage. So you have the same power with 120 volts X 20 amps as with 12 volts X 200 amps. So if you are going to use these in a car or big truck use the voltage that is available to you because to convert it to a differnt voltage has losses. So here is the scam. 12 volts / 1.35 volts/plate = 8 plates. If you want the box bigger put them in parallel, say 3 sets of 8 each for 24 in a box. Now you haven't said how many amps per plate (probably because you haven't built one yet) but I would guess it depends on the surface area of the plates and the spacing. For the sake of discussion lets use your initial 120 volts at 20 amps for 63 plates in series (21 x 3) or 38 watts per plate. So your new box with 3 sets of 8 in parallel would need 912 watts or 76 amps from a 12 volt battery. Get a heavy duty alternator and your in business! Now to control it use a PWM. We can easily build one for 100 amps that looses less than 10 watts. Figure out a way to control the pwm with engine rpm so you only make as much gas as you need and your on the road!
OK I get it.
So here is the deal. It's all about power, not voltage. So power = current X voltage. So you have the same power with 120 volts X 20 amps as with 12 volts X 200 amps. So if you are going to use these in a car or big truck use the voltage that is available to you because to convert it to a differnt voltage has losses. So here is the scam. 12 volts / 1.35 volts/plate = 8 plates. If you want the box bigger put them in parallel, say 3 sets of 8 each for 24 in a box. Now you haven't said how many amps per plate (probably because you haven't built one yet) but I would guess it depends on the surface area of the plates and the spacing. For the sake of discussion lets use your initial 120 volts at 20 amps for 63 plates in series (21 x 3) or 38 watts per plate. So your new box with 3 sets of 8 in parallel would need 912 watts or 76 amps from a 12 volt battery. Get a heavy duty alternator and your in business! Now to control it use a PWM. We can easily build one for 100 amps that looses less than 10 watts. Figure out a way to control the pwm with engine rpm so you only make as much gas as you need and your on the road!