Why is the NI PXI-4110 Described as a Single-Quadrant Power Supply? Hardware: Modular Instruments>>Power Supplies>>PXI-4110
Problem: The NI DC Power Supplies and SMUs Help states that the NI PXI-4110 is a triple-output, single-quadrant DC power supply. However, the same documentation also states the NI PXI-4110 can source either positive current or negative current, meaning the output can occur within at least two quadrants. Why is the NI PXI-4110 described as a single-quadrant DC power supply? Solution: The NI PXI-4110 is a single-quadrant DC power supply with three outputs. The output of a power supply can occur in four quadrants. Each of these quadrants consists of a combination of current and voltage polarity. Use the following figure to determine whether the output capability is sinking or sourcing for any given voltage and current, positive or negative.
For example, when you have a positive voltage and a positive current, the output operation falls within quadrant I, and the output is sourcing current. When you have a positive voltage and a negative current, the output operation falls within quadrant II, and the output is sinking current. The NI PXI-4130 is a four-quadrant source measure unit (SMU). The SMU channel on this device is capable in operating in all four quadrants Related Links:
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Report Date: 03/31/2006 Last Updated: 03/19/2008 Document ID: 3VUECJLE |
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