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Application Notes for R&S®LCX

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Accuracy Calculation Tool for R&S®LCX100 and R&S®LCX200

This application note is about measurement accuracy of the LCR-Meters R&S®LCX100 and R&S®LCX200. On the R&S®LCX100 and R&S®LCX200, the accuracy is calculated in real time, depending on the instrument settings and on the measured impedance. It is displayed on the lower part of the instrument display. If no test instrument is available, or information about the measurement accuracy at a certain measured impedance is sought without having a DUT at hand, this accuracy calculation tool provides the desired values.The document explains the background of the calculation and the prerequisites for installing and running the program. The installer provided installs the program on your PC.

11-May-2023 | AN-No. 1GP138

Webpage, VNC and FTP for Rohde & Schwarz DC power supplies and R&S®LCX LCR meters

Ethernet based remote services for Rohde & Schwarz DC power supplies and R&S®LCX LCR meters

27-Apr-2023

Aging & In-circuit Characterization of AL-Electrolytic Capacitors

This paper describes the characterization of aluminum electrolytic capacitors specifically used in AC-DC power converter applications. It will be discussed why this capacitor technology is critical regarding lifetime and why it cannot be substituted simply by any another capacitor technology. Different aging effects of the capacitor will be discussed. Usage of the capacitor in different AC-DC converter topologies will be presented. Simulation circuits will be used to analyze the capacitor in more detail before suitable measurements will be performed to demonstrate a real example of a switching-mode power supply (SMPS).After the introduction into the aluminum electrolytic capacitor basics and theory, this paper will also present all important and possible measurements of capacitor parameters, like capacitance, equivalent series resistance (ESR) and ripple current. This includes in-circuit measurement which can be performed with an oscilloscope. An LCR-bridge is used to obtain high accuracy measurements in addition. A comparison between the two measurement methods will be presented. Furthermore, the required measurement hardware for the in-circuit measurements and the bridge measurement will be discussed and presented.Lastly, two different lifetime calculation methods are presented and a real example is used to compare the advantages and disadvantages of the different methods.Thanks to Mr. Frank Puhane from Würth eiSos GmbH & Co. KG who provided me with all aluminum electrolytic capacitor samples including the prepared capacitor with build-in temperature sensors to perform all measurements. Furthermore, his great expertise was very beneficial and helpful to create this premium application note.

07-Feb-2023 | AN-No. 1SL388

Web Page, VNC and FTP on R&S® DC Power Supplies, and on LCR Meters R&S®LCX

This application note applies to DC power supplies R&S®NGL200, R&S®NGM200, R&S®NGP800, R&S®NGU201 and R&S®NGU401, as well as LCR meters R&S®LCX100 and R&S®LCX200. It provides an overview over ethernet-based remote services provided by the referenced R&S® instruments. These services comprise an instrument web page, VNC remote control and FTP file transfer between the instrument and a remote computer. The application note gives instructions on how to set up the instrument and the remote computer in order to be able to utilize these services.

19-May-2022 | AN-No. 1GP135

Precise measurement of complex electric impedance with swept frequency, test signal level and DC bias

The impedance of real-world passive components depends on frequency, signal level and DC bias. This has to be taken into account during circuit design. The R&S®LCX LCR meter is ideal for measuring these dependencies. The R&S®LCX sweep tool is an application program for conveniently performing such sweeps and displaying the results on charts.

17-Mar-2022

Sweep Tool for LCR Meter R&S®LCX

The LCR meters R&S®LCX100 and R&S®LCX200 precisely measure the complex impedance and the resulting components values over a wide frequency range. Dynamic impedance measurements allow to perform these measurements while sweeping the test signal frequency or other parameters like test signal level and DC bias. This application note provides a PC-based software tool for comfortably setting the sweeps and displaying the results in numerous charts.

14-Mar-2022 | AN-No. 1GP132

A customized transformer design needs a powerful LCR bridge

A high frequency transformer is a key component when designing isolated switching mode power supplies (SMPS). Leakage inductance is essential in the control of many design parameters including efficiency, maximum voltage rating for switching elements and EMI when it comes to designs using customized transformers. Accurate measurement of this parasitic element is mandatory. The R&S®LCX LCR meter is ideal for this challenging measurement task.

15-Feb-2022

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