A somewhat confused question if I may say so Eric!😲
You can't 'regulate up' only down.
The regulator's job is to produce a constant lower voltage
from a range of higher voltage
s. I often use one to produce 5V for the RX and servo
s from a 12V SLA drive battery
. A little 3 legged device (type LM7805) which looks just like the power FETs in a high current ESC. My version of a UBEC! 😉
What is this 'regulator' you have? Type number? Manufacturer? Photo?
To get 12V from 7.2V you would need to use a Voltage converter (also known as an inverter). This works by converting the DC input from the battery
to an AC voltage
which can then be increased using a transformer
More elegant (and expensive!) versions use a transistor oscillator
and amplifier. This uses hi-power transistors instead of the transformer
The AC output of the transformer
(or amplifier) is then rectified back to DC.
All this is very inefficient which is why it is normally only used for very light currents, where the losses are not so significant, and when there is no other alternative, not often the case!
You can't beat the physics and you will never get the same power out that you put in.
This leads to a basic design question:-
What is the total current consumption of the load? I.e. the motor
A simple example:-
Let's say that at 7.2V the motor
s draw 10Amps total, i.e. 72W (or VAmps). Assuming a utopian 100% efficiency at 12V this would equate to 6A.
Due to the three stages of conversion; DC to AC, transformation / amplification of AC to 12V, AC back to DC, you'll probably be lucky to get an efficiency of around 60% to 70%.
Thus if you stick 720W in you'll get around 430 to 504W out.
Not much of a gain is it!🤔 Your battery
would be exhaust
ed in about 2/3 the time it is now 😡
If your motor
s draw more than 10A the problem just gets worse.
So what is it you really want to do?
If you just want to up the volts
to your motor
s stick a 12V SLA or an 11.1V LiPo (3S) in and hope that you don't cook your motor
Frankly I don't really know why you're bothering, tugs aren't sprinters!
If you want more pulling power with the existing setup try experimenting with prop sizes and pitch. Will probably achieve much more than fiddlin' about with voltage
BTW: All this assumes that the RX has it's own separate 5V battery
supply or from a BEC in the ESC.
Some clarification needed from your side.
Cheers, Doug 😎