For voltage control use ohms law to create a voltage divider network. For current control, do the same thing. The result will be a high wattage, low ohm resistance in series with a brute force cell, no neutrals. It's a design that goes back to the mid 1800's and it works. Back in the days of huge rheostats and open winding motors and high voltage knife switches. I like technology just as much as the next guy, but...
Making the cell into a water capacitor and over stressing it until you get catastrophic dielectric failure is cool to.
Randohr
02' Jeep; 18mpg Highway w/o HHO
23mpg highway w/ HHO.
Parallel plate water baths, 3vdc, 16A
Efies(x4), MAP diode, AIT mod, WTS mod.