Voltage Dividers

Objective: we need to determine the bus voltages so that anywhere between one to three loads can be applied to the voltage and still meet the voltage and current requirements.

first we calculate

Req,max= 1Kohm
Req,min=1/3Kohm

upper and lower voltage bounds are

max=6.25V
min=5.75V

plugging in equations

I bus,max=19.2mA
I bus,min=6.25mA

data collected from the three possible congigurations

Config	Req	Vbus	Ibus	Pload
1 load	1Ω	6.09V	6.1mA	.04W
2 loads	1/2Ω	5.69V	11.4mA	.065W
3 loads	1/3Ω	5.33V	16.1mA	.086W

the actual percentage in load variation goes from 1.5% to 5.1% to 11%, the difference can be found from the imperfections in the tools used in the experiment, the variation of power given, the variation in the resistors and so on, everything factors in and creates problems for experiment.

if a fourth load was added, that would give us an Req of 1/4 a Vbus of about 5.0, an I bus of about 21mA and a Pload of about .11W

the new source parameters would have to be between 5.95-6.05.

in conclusion our tests went fairly well and our percentages almost made it within our requirements.