Search Application Notes & Cards
Learn how to configure Rohde & Schwarz products to fit your application. Search our database by product, technology, or application to find relevant technical documents.
Search Application Notes & Cards
Learn how to configure Rohde & Schwarz products to fit your application. Search our database by product, technology, or application to find relevant technical documents.
28 Results
RMS is one of the most common parameters in test and measurement. Mathematically, it is the quadratic mean of continuously varying values (waveform). Especially when quantifying power, RMS simplifies the calculation as the polarity of the voltage and direction of the current can be disregarded.
17-Aug-2015
Soft-start verification is becoming a major concern for modern switching mode power supplies due to the increasing use of digital controllers. The R&S®RTM3000 and R&S®RTA4000 oscilloscopes offer pulse width modulation (PWM) track analysis functionality, which is a great feature for verifying and optimizing soft start during development.
09-Jul-2019
Make more accurate power rail measurements.
03-Jan-2018
Make more accurate power rail measurements.
09-Jul-2020
This application note describes how to measure the control loop stability of switch-mode power supplies to get the best performance and confidence of the design. It will explain the main measurement concept and will guide the user during the measurements and mention the main topics in a practical manner. Wherever possible, a hint is given where the user should pay attention to it to avoid weak measurements. The Rohde and Schwarz buck converter reference board was designed in collaboration with Texas Instruments and is used to illustrate the closed loop measurement in a practical manner.
01-Jul-2019 | AN-No. GFM321
With a Rohde & Schwarz oscilloscope
19-Jun-2019
Long acquisitions at maximum resolution with the history function
01-Dec-2017
Oscilloscopes are the workhorses for power electronics engineers. With powerful and easyto- use FFT analysis capabilities, their application fields extend to EMI debugging – and that saves a lot of time and money. A typical task is verifying the effectiveness of an EMI filter – early in the development phase.
23-Sep-2019
This application note describes how to use the mask and limit test features of the R&S®RTO, R&S®RTE and R&S®RTM Digital Oscilloscopes for EUT monitoring of signal forms, jitter etc. with the R&S®EMC32 Measurement Software. The mask test function allows autonomous characterization of digital signal integrity during EMS tests. R&S®EMC32 software records violations of userdefined limits or mask templates and evaluates the immunity threshold at frequencies of critical electromagnetic susceptibility.
20-Apr-2015 | AN-No. 1MA242
With a Rohde & Schwarz oscilloscope
13-Aug-2024
Getting EMI emissions under control is one of those tasks that R&D engineers do not enjoy doing . EMI must often be taken into consideration as early as the design phase, particularly in the case of power electronics systems with increasing switching speeds of wideband gap semiconductors. While EMI receivers or spectrum analyzers are always the preferred choice for these measurements, they are often not available as standard measurement equipment in the R&D lab. To allow optimization early on in the R&D lab, Rohde & Schwarz provides a free tool to simplify conducted emissions debugging using oscilloscopes.
27-Sep-2021 | AN-No. 1SL372
This application note describes the configuration of a Miracast wireless video transmission system and how to measure the delay times between a smart phone or tablet (source) and a television / monitor (sink) display. The accompanying software for Windows 7/8/10, Mac OS X 10.x and MATLAB additionally allows to measure the delay until the video signal is transmitted over the air and optionally until it is available on the HDMI cable of an external Miracast receiver.
01-Oct-2015 | AN-No. 1MA250
This application note describes the basic frequency filter measurements that are often required during service repairs, during development of simple circuits and for training purposes. These measurements do not always require high-end T&M equipment. Instruments in this class typically offer a very wide range of measurement functions coupled with the best-possible RF performance. However, these features are not necessary for simple applications. This application note therefore describes measurements using instruments from the cost-effective Rohde & Schwarz Value Instruments series. The instruments in this series offer the measurement accuracy demanded by quality-conscious users plus easy operation and all of the functionality needed for everyday measurement tasks.
27-Mar-2015 | AN-No. 1MA243
This white paper introduces a novel attribute based architecture for VXIplug&play instrument drivers. The presented architecture uses the attribute based concept of IVI-C instrument drivers to introduce a two-layer design for VXIplug&play instrument drivers. Moreover the use of attributes is shown for the Rohde & Schwarz Spectrum Analyzer (rsspecan) instrument driver.
01-Dec-2012 | AN-No. 1MA170
LLC resonant converters achieve very high efficiency levels due to soft switching. However, during the power-on phase such a converter might behave differently until the controller has reached a steady state. Measuring the inrush current and the power-on time ensures that they are within standards and comply with the data sheet.
29-Nov-2018
With the R&S®RTB2000/RTM3000/RTA4000 oscilloscopes, you control and interact remotely via LAN. These oscilloscopes incorporate the USB-based connectivity standard media transfer protocol (MTP).
20-Mar-2017
The use of Rohde & Schwarz device drivers under VEE software is not complicated. However, a number of factors are involved, the errors that occur are often difficult to diagnose. This application provides easy and detailed support for installation and troubleshooting using National Instruments or Agilent GPIB boards.
20-Dec-2012 | AN-No. 1MA035
Modern, capacitive touchscreens as used, for example, in mobile phones are susceptible to common mode noise exhibited by external power supplies (EPS).
17-May-2018
This application note introduces the reader to the SpaceX Hyperloop Pod Competition project and their special demands for the electrical drive train. Common motor technology like brushless motors and their typical control methods widely used in the industry are also discussed within this document.However, the main focus of this paper is a demonstration of a power measurement method of a three-phase inverter by means of a 4-channel oscilloscope. Not only the theory of the power measurement is presented but also the conducted measurement is presented including tips and tricks to obtain the best measurement results.The measurement solution provided by Rohde & Schwarz was mandatory for the TUM Hyperloop team to overcome challenges in optimization of the electrical drive train used in the SpaceX Hyperloop Pod Competition project.Many thanks to Mr. Johannes Ungar and Faruk Centinkaya (TUM Hyperloop) for contributing significantly to this application note. By combining their expertise in electrical drive trains used in the Hyperloop Project and with a Test & Measurement solution from Rohde & Schwarz, we have achieved synergies that will be beneficial for any design and test engineers in the industry.
31-Mar-2021 | AN-No. GFM360
Miloslav Macko 1MA196 1MA196, Forum, Instrument, Remote, Control, Python, R&S Forum, RS Forum, R&SForum, RSForum R&S®Forum for Instrument Remote Control Using R&S®Forum Application for Instrument Remote Control Miloslav Macko 1MA196 1MA196, Forum, Instrument, Remote, Control, Python, R&S Forum, RS Forum, R&SForum, RSForum R&S®Forum for Instrument Remote Control Related products
28-Jun-2018 | AN-No. 1MA196
What are the two key benefits of oscilloscopes with deep acquisition memory?
13-Dec-2017
From designing a test setup to performing accurate measurements
Double-Pulse testing is a standard test-method used in power electronics design. Accurate measurements require a careful design of the test setup and the selection of the right measurement instruments. This application note discusses important aspects of double-pulse test setups as well as how to perform accurate measurements.
22-Mar-2021 | AN-No. GFM347
Versatile Software Tool for Rohde & Schwarz Instruments
RSCommander is a versatile software tool for a wide range of Rohde & Schwarz spectrum-, network analyzers, signal generators and oscilloscopes. It allows for automatic instrument discovery, making screenshots, reading traces, file transfer and simple script creation.
24-Dec-2017 | AN-No. 1MA074
This application note describes different measurement techniques and methods for an automotive lighting module based on a hybrid controller design. Of course, a lighting module in such an environment has to fulfil requirements according to the automotive standard, which is typically a relatively high-level standard compare to the industry standard. The oscilloscope is a perfect tool for this application to verify the set of requirements because time domain signals (analog and digital) are present in the whole design. Furthermore, measurements in the frequency domain have to be performed, which a modern oscilloscope can fulfil. In addition to the oscilloscope, a programmable power supply supports the measurement in several measurements. The set of requirements are the main reason why a hybrid controller from Microchip is a great choice for this design because it provides tremendous analogue and digital capabilities. The hybrid controller provides beside the analogue functions like an operational amplifier digital functions like analog-to-digital converter and interface functions like UART, CAN or LIN to interact with other systems. The programmable software part is hosted in the digital part. The digital part of the controller implements the communication interface and provides status information to the outer system controller. The light source itself has to avoid any flicker and shall be capable to dim to different lighting levels. Wide input voltage variations and efficiency have to be taken into account during the design of a converter dedicated for automotive applications. Nevertheless, the measurement considerations presented with the design are valid and applicable in other professional lighting industries as well.Thanks to Mr. Andreas Reiter and Mr. Milan Marjanovic from Microchip who provided us with hardware and software and their great expertise to create this application note.
08-Jun-2020 | AN-No. GFM339
Rohde & Schwarz offers a powerful tool for remote control of their oscilloscopes - the RsInstrument Python module. This module enables users to control and automate their Rohde & Schwarz test & measurement instruments, including oscilloscopes, through Python scripts or interactive console communication.
14-Dec-2023