[Rick.Donaldson]

True. That's why a voltage regulator is required.

No, voltage regulators are used to keep the supply voltage constant!

You don't gain anything by increasing voltage, and you will get a reduction in current. Mathematically you get E=I*R where E is voltage (electromotive force), I is current (Intensity) and R is resistance (or impedance) of a circuit.

in it's simplest form, if you increase voltage you'll get a current decrease. You don't get something for nothing and if you look at the formula you'll find that voltage and current are inversely proportional.

[Bloody Sam Roberts]

You are correct.
That which I refer to as a voltage regulator is likely more properly known as a solenoid.
The device in an auto's electrical system that opens the circuit between the battery and the alternator. Thereby ensuring that the battery does not take too much voltage and damage it.