The scheme is combined of two control loops to estimate the reference voltage
In this test, the reference voltage
, Vref (=Vref+ - Vref-), was set to 300mV, and a sine wave of 300mV amplitude and 244.
Ideally droop should be zero so that Vm exactly follows the Vr, but, this cannot be practically realized, and thus, the values for droop are adjusted to have a uniform slope and a value as close to reference voltage
on system bus as possible.
Higher level of ripple voltage is less important because ADC reference voltage
is generated by internal MC reference source, but not directly from power supply.
One of the most important characteristic of the electronic load is its behavior as a voltage controlled current source, considering this, a system which allows the programming of different reference voltage
values over time is implemented in order to set different load profiles.
Fujitsu Laboratories has developed a completely new circuit design based on a digital control technique that requires neither the use of resistors to generate reference voltage
levels nor switches for switching reference voltage
The reference d and q axis voltages are calculated by the reference voltage
vector calculator using the equations given in (9).
2 also illustrates how the relative values of the three phase modulating voltage waveforms are related to the position of the reference voltage
space vector in the space vector plane, by identifying the sectors.
This equation shows that the reference voltage
is completely compensated and does not influence the measurement of the thermistor resistance.
A reference voltage
is established halfway between the covered and uncovered transformer outputs.
The 2-channel converter design, which includes a programmable gain amplifier (PGA) and a band-gap reference voltage
source, has a 3.
Strain gages used with the PS01 chip require no separate power supply or reference voltage
and connect directly to the chip.