![]() With the EasyArb function, arbitrary curves are stored together with the global instrument settings. With the QuickArb editor, arbitrary curves can be stored to and loaded from ASCII files with character-separated values (CSV). Additional parameters like the number of repetitions can also be modified. ![]() The unloaded voltage, current limit and dwell time can be edited for every point in the curve. Rohde & Schwarz DC power supplies offer an editor for modifying arbitrary curve shapes on the touchscreen. This feature is useful, for example, for synchronizing DC voltage sweeps with procedures that take place on measurement equipment. With the QuickArb functionality, not only the start of the arbitrary function can be triggered, but also the advancement of a sequence to the next point. Another advantage is the higher time resolution of 1 ms for both the minimum dwell time and the increments for advancing to the next point. In addition to larger parameter ranges and a higher number of points, the QuickArb function supports subgroups, specification of the end behavior, and linear ramp-shaped interpolation between points. The parameters for the individual channels are organized according to a defined scheme, providing a certain degree of compatibility between arbitrary files. The only configurable parameter for the ramp function is the ramp time from switch-on until the full unloaded voltage is reached.Īrbitrary and ramp functions with Rohde & SchwarzĭC power supplies from Rohde & Schwarz provide arbitrary functions like EasyArb or QuickArb. It can be used to protect circuits from damage by inrush current. The ramp functionality provides a linear “fade-in” curve for the unloaded voltage versus time after switching on the corresponding output channel of the power supply. ![]() Unlike the arbitrary function, the curve of the ramp function has a fixed shape. This allows, for example, to emulate real-world scenarios using arbitrary functions as voltage or current inputs for testing the resilience of a DUT against variations in supply voltage and current delivery. In addition, the number of repetitions for a defined sequence of points can be specified. R&S®Essentials | DC Power supplies fundamentalsĪuthor: Anja Fenske, Product Manager R&S Essentials Power suppliesĪn arbitrary file stores voltage, current and dwell time for a certain number of points.
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