Changing DC voltage and amperage? Answered
I've been looking into HHO units and the most efficient voltage is 1.5 VDC but the units pull 30 Amps. All the converters and modules seem wasteful while I feel there is a direct way to create this supply with minimal loss from battery supply. Resistors seem to be the most efficient but what resistor can turn 12V into 1.5V while delivering 30 Amps without burning something out. I'm contemplating a bank of resistors all on separate leads and tied together in a parallel combination so the 30 Amps are split along many lower amp rated resistors. I just don't know enough about DC conversion to know if amps will become volts or just get lost to heat dissipation. An HHO unit relies on the highest efficiency current supply to perform correctly and save my gas. The units are out there but not this fine tuned system I want to build because 1.5V at a 30 A draw from a 12V car battery is hard to do without wasting the gas in just converting the ideal power supply. I've heard talk of using diodes as well. Is a diode or resistor setup more efficient than a PWM? Could I combine diodes and resistors for better efficiency? I've been searching the web for info but it just confused me more as nothing I've read comes anywhere close to what I'm trying to do. Those I've read about that try to build the most efficient power supply end up burning up their components by pushing them too hard while instructing others to do the same. There has to be an efficient way to create that ideal supply current without much loss. Could it be run straight off my alternator since it produces AC before the voltage regulator converts it to DC or would a second regulator just waste more current than resistors and diodes from the 12V battery? Any advice or info would be greatly appreciated.