To investigate the stability of a switched-mode power supply, a Bode plot created with an oscilloscope is ideal for checking the critical phase margin and gain margin values. The factors that determine how satisfactory the results from Bode plot measurements will be, need to taken into consideration as part of the preparation....
Published: Jun 04, 2020
This application note created by the Test and measurement specialist Rohde & Schwarz and the University of New Hampshire Interoperability Laboratory (UNH-IOL) describes methods of implementation (MOI) for precise, fast and error-free compliance testing of high-speed cables and backplanes according to InfiniBand standards...
Published: Apr 20, 2021
To ensure the stability of voltage regulators and switchedmode power supplies, the control loop behavior must be measured and characterized. A well compensating voltage controller enables stable output voltages and reduces the influence of load changes and supply voltage variations. The quality of this control circuit...
Published: Jun 04, 2020
To achieve some of the ambitious Key Performance Indicators of 5G enhanced Mobile Broadband, semiconductor devices for 5G infrastructure need to empower reliable multi-user MIMO (MU-MIMO) functionality at mmWave frequencies with larger channel bandwidths. 5G base stations achieve this spatial multiplexing by employing...
Published: Feb 24, 2021
Weatherproofing options for coaxial connections at cell sites have changed and expanded along with the cell sites themselves. Today’s more complex cell site designs demand a new type of weatherproofing solution to protect vulnerable connection points at the antenna and the remote radio unit (RRU).
This paper...
Published: Jul 26, 2018
This white paper provides an overview of the basic building blocks of a phased array system and discusses how the nature of their design leads to a challenging test environment. Real measurement configuration examples are shown to highlight the flexibility required for T/R module testing.
Register now and get your...
Published: Apr 06, 2020
This webinar explores the topic of debugging CAN bus interfaces by using an oscilloscope. We will be talking about topics such as sources of bus errors, EMI debug correlation with protocol decode, boot cycle testing, application specific triggering, eye measurements and more.
Attendees of the webinar will gain insightful...
Published: Aug 23, 2021
This application note is about creating your own battery model for the R&S®NGM200, beyond the standard models provided within the battery simulation option NGM-K106. The main purpose is to gradually discharge a battery or a rechargeable battery using the internal QuickArb function. The discharge of the battery...
Published: Apr 20, 2021
As advanced driver assistance systems (ADAS) introduce
new technology into vehicles, they need adaptable, futureproof test systems. NI offers a single, software-defined platform approach to automotive test that can natively integrate all the I/O types you need to test today’s and tomorrow’s ADAS technology....
Published: Jan 08, 2020
Feed-forward headsets typically are more easily developed because the design engineer usually does not have to deal with stability issues. A major drawback of this topology, however, is wind noise, since the ANC microphones are directly exposed to the ambient. An alternative that overcomes this drawback is the use of a...
Published: Nov 01, 2018
Test engineers spend as much as 50 percent of their time (or even more in some cases) actively dealing with obsolescence in their test program sets.
Read about different solutions in the marketplace to help you overcome the challenges you face today.
Also explore best practices...
Published: Mar 03, 2021
Upcoming technologies such as 5G for wireless communications and the increasing amount of integrated electronic systems in modern vehicles require new solutions for EMC testing. In addition, manufacturers are looking for time saving test routines and intuitive test software that enable fast precompliance and compliance...
Published: Sep 23, 2020
Safety, availability, and cost considerations can make performing thorough tests of embedded control devices
using the complete system impractical.
Hardware-in-the-loop (HIL) simulation is a real-time test technique used to test these devices more efficiently.
During HIL test, the physical system that interfaces...
Published: Jan 01, 2021
This webinar is intended for engineers who work on high-speed digital design and test. In particular, we will be focusing at USB interfaces.
After a quick introduction into USB technology we will be discussing the details of USB 2.0 and 3.2 compliance testing. The webinar will enable you to learn common signal integrity...
Published: Sep 27, 2021
