8431 Results
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
Accessing Measurement Data and Controlling the Vector Network Analyzer via DDE
31-Jul-1998 | AN-No. 1EZ33
Security through technology - the R&S®QPS quick personnel security scanners are specifically designed to make people screening at security checkpoints faster, more effective and comfortable.
23-Jan-2019
Upconverting Modulated Signals to Microwave with an External Mixer and the R&S<sup>®</sup>SMF100A Microwave Signal Generator
18-Dec-2008 | AN-No. 1GP65
Double frequency range for R&S Signal Generators
20-Apr-1998 | AN-No. 1GPAN03
Transfering Files from a UPL Audio Analyzer to an external PC via the RS-232-C Interface
15-Nov-2001 | AN-No. 1GA42
The R&S®Pulse Sequencer software together with the R&S®SMW200A vector signal generator offers a simple and easy way to simulate multi-emitter environments.
13-Nov-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
This paper explains how to use the Rohde & Schwarz IVI.NET instrument drivers in a Visual Studio environment.
31-May-2016 | AN-No. 1MA268
Remote Operation of R&S Instruments Using Remote Desktop Connection via LAN
05-Jul-2007 | AN-No. RAC-0703-0029
Operating Guide for WCDMA Test Setup according to 3GPP TS34.121
15-Apr-2009 | AN-No. 1CM71
In this paper, we present the performance and the basic control of a MNA used for automatic spectrum clearance in LTE and 5G systems.Automatic spectrum clearance is a method to mitigate spectrum interference by the use of a mobile network analyzer (MNA).
02-Oct-2017 | AN-No. 1MA293
Test of DVB-H Capable Mobile Phones in Development and Production
07-Apr-2005 | AN-No. 1MA91
The R&S®SMW-K501 and R&S®SMW-K502 options from Rohde & Schwarz enable engineers to quickly model complex pulse scenarios.
06-Jun-2017
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
Remote Emulation with the R&S SMA100B Signal Generator
11-Dec-2019 | AN-No. 1GP120
Solutions and Tipps for NR FR1 in TDD Downlink Mode
5G New Radio (NR) is a radio technology specified by 3GPP and was first released in 3GPP release 15. It is designed to target three use cases, i.e. enhanced mobile broadband (eMBB), massive machine type communication (mMTC) and ultra-reliable low latency communication (URLLC). Among these three use cases, eMBB represents actually a further evolution of mobile broadband communication from LTE standard. According to the technical performance requirement defined by IMT-2020, by deploying 5G technology, peak data rates of eMBB application are expected to reach 20 Gbps in downlink (DL) and 10 Gbps in uplink (UL) direction, respectively. Typical use cases of eMBB are data hungry applications, such as high resolution 8K video streaming, virtual reality (VR), augmented reality (AR) etc.Verification of a 5G capable user equipment (UE) with respect to its achievable maximum data throughput under controllable and deterministic test conditions is an essential process during the design phase of the product. Performance centric verification through identification of the data throughput bottleneck, product benchmarking against a golden device enhances tremendously the user experience in the end.This document focuses on 5G NR frequency range 1 (FR1) with TDD duplex mode in E-UTRAN New-radio Dual Connectivity (ENDC) operating mode. As 5G NR physical layer offers a plethora of flexibility, the motivation here is to provide a kind of guideline of relevant parameter settings to stimulate device under test (DUT)'s max throughput capacity. The status quo of the R&S solutions at the time when the application note is created are described. Shown feature sets are constantly evolving, so the screenshots used and the parameters shown may change.
07-Jul-2022 | AN-No. 1SL379
Remote Emulation with the R&S<sup>®</sup>SMA100A Signal Generator
17-Aug-2015 | AN-No. 1GP93
Crime scene investigation with cellular network analysis
14-Mar-2024
DFS Analysis Tool, Dynamic Frequency Selection in the 5 GHz Band
30-Mar-2007 | AN-No. 1EF59
5 kW HF HIGH-POWER TRANSMITTERS FOR AIR TRAFFIC SERVICE
17-May-2023
CERTIUM VCS is a purely IP based communications infrastructure that can be used to address shelter scenario challenges.
14-Jun-2023
This application note is for readers that work with digital radio transmitting and receiving devices or maintain analog radio communication equipment.
10-Feb-2017 | AN-No. 1MA277
Mobile Tests for GSM under Fading Conditions
23-May-2000 | AN-No. 1MA19
Generation of Test Signals acc. ISO 14708 for Testing of Cardiac Pacemakers
15-Jul-2009 | AN-No. RCS0812-0065
The R&S®CMP200 radio communication tester together with the R&S®CM-Z300A time of flight kit provides an accurate setup for time of flight measurements – in validation, calibration and certification.
27-Jul-2022
Tackling the Challenges of Pulsed Signal Measurements
18-Jan-2008 | AN-No. 1MA124