70 Results
The R&S®RTO6 oscilloscope has an in-depth tool for debugging custom and commercial off-the-shelf serial buses for the avionics and aerospace industries.
20-Dec-2023
Simulation can be a big time-saver when designing EMI filters for DC/DC converters. However, simulated results can differ significantly for different tools if simulated models are not accurate or do not cover all the relevant components.
21-Sep-2021
EMI Debugging with the R&S RTO and R&S RTE Oscilloscopes
25-Jun-2014 | AN-No. 1TD05
LTE beamforming can be accurately tested with one or more R&S®RTO digital oscilloscopes for a 1×2, 1×4 or even a 1×8 MIMO system.
08-Aug-2024
This document is divided in two parts and starts with an introduction in AC-DC conversion principles in general. It will present the most common circuits used for different power levels. The switching mode power supply (SMPS) converter will be the main focus as they are used everywhere in the electronics. Especially the flyback converter design in different flavors are highlighted. Nevertheless, all measurements are also applicable for other SMPS converter designs operating at higher power levels.In the second part of this document, most relevant testing methods and procedures of an AC-DC converter are highlighted. For each testing section, a fundamental part will be upfront discussed and it is followed by a presentation of a suitable measurement method. In this second part, the device under test (DUT) is considered as black box device and thus the structure is similar. Therefore, the testing parts consists of methods related to input tests, output tests and a combination of both like efficiency. Of course, some test performed at the output of the converter are also relevant for DC-DC converter, e.g. the validation of the output ripple.
14-Nov-2022 | AN-No. 1SL387
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
The R&S®RTO oscilloscope is a valuable tool for analyzing EMI problems in electronic designs.
27-Jun-2018
The R&S®RTO oscilloscope is the perfect solution for measurement applications that require further remote processing.
15-Feb-2018
In order to clearly visualize and make repeatable measurements on signals with amplitudes of less than 1/100 of a division, and stabilize signals captured over very long periods, the R&S RTO oscilloscope’s powerful combination of measurement and math channel capabilities allows corrective offset adjustments on individual acquisitions more than one hundred times per second.
10-Sep-2015
Setting up complex real-time trigger conditions using the R&S®RTE and R&S®RTO oscilloscopes increases the test coverage and robustness of converter and inverter systems.
10-Aug-2020
Correlated time-frequency measurements help optimize gate driving and minimize electromagnetic emissions early on during development.
27-Apr-2023
Measuring the power supply noise rejection (PSNR) requires accurate generation and leveling of artificial, sinusoidal disturbances and measurement of resulting phase-noise and jitter impairments.
30-Sep-2020
The R&S®RTO/RTP is perfect for precise measurements in many accelerator physics lab applications, such as in synchrotrons or free electron lasers.
17-Dec-2013
The R&S®RTO and R&S®RTP oscilloscopes are capable of triggering precisely on a pulse as a prerequisite for time domain and frequency domain analysis.
13-Mar-2019
The numerous supply voltages of FPGAs, CPUs and DSPs need to be powered-up in a specific order to ensure reliable operation.
08-Oct-2018
This document describes a method to separate common-mode and differential-mode separation using two oscilloscope channels. This separation approach works without any additional hardware component.
17-Sep-2020 | AN-No. GFM353
Automated measurement functions in combination with track functionality make it easier to analyze single events and reveal “long-term” variations.
29-Nov-2018
This document describes the use of the R&S®RTO and R&S®RTP to demodulate RF pulses for further measurements and precisely trigger on and analyze RF pulses.
13-Mar-2019
Rohde & Schwarz offers a compliance test solution using the R&S®RTE or the R&S®RTO oscilloscope.
27-Jan-2016
Measuring RDS(on) with high-definition oscilloscopes - Application Brochure
19-Mar-2015
The R&S®RTO digital oscilloscope analyzes RF pulses up to the maximum bandwidth of the instrument used.
09-Nov-2017
MIPI D-PHY is a low-power, cost-effective physical layer interface, essential in mobile devices and advanced technology systems. It's a high-speed, source-synchronous interface used in smartphone cameras, smartwatch displays, drones, in-car entertainment, automobile cameras, and radar sensors. This application note explores MIPI D-PHY's features, functionality, and testing practices for device compliance, addressing common issues. It highlights Rohde & Schwarz's equipment for ensuring compatibility and solving issues with MIPI D-PHY, aligned with MIPI D-PHY specification version 2.5.Developed by the MIPI Alliance, D-PHY connects cameras and displays to a host processor via CSI-2 or DSI protocols. It features a master-slave, asymmetrical design for reduced link complexity. Key aspects include a unidirectional clock, optional data signal directions, different data rates for half-duplex operation, point-to-point communication, and high-speed (HS) and low-power (LP) modes for data transfer and battery preservation. In HS mode, D-PHY uses differential signaling with specific impedance, while in LP mode, it operates in a single-ended manner with high impedance termination.The application note from Rohde & Schwarz provides insights into characterizing and debugging MIPI D-PHY, offering conformance verification with MIPI Alliance standards and protocol decoding options.
31-Jan-2024 | AN-No. 1SL410
Thanks to their multichannel capability, oscilloscopes are ideal for multichannel applications such as the analysis of MIMO, multi-antenna radar and differential high-speed digital signals.
06-May-2020
This app note provides an introduction into the various jitter components and elucidates the commonly available jitter separation frameworks.
08-Dec-2021 | AN-No. 1SL375
R&S®Forum for Instrument Remote Control
28-Jun-2018 | AN-No. 1MA196
This paper explains how to use the Rohde & Schwarz IVI.NET instrument drivers in a Visual Studio environment.
31-May-2016 | AN-No. 1MA268
The R&S®VSE is a powerful tool for comprehensive analysis of a variety of signals, providing full support to the Rohde & Schwarz oscilloscope advanced trigger system.
03-Feb-2021
Correlated time-frequency measurements help optimize gate driving and minimize electromagnetic emissions early on during development.
22-Nov-2018