Mutation testing checks the quality of your test cases. Automated mutation testing is the most important new functionality in the new main version V4.3 of TESSY, the tool for automated unit / module and integration testing of embedded software.
What is the purpose of such code mutations and how does mutation testing...
Published: Mar 02, 2021
This paper reviews the state of the art of electric drives technology in three specific areas (a) technical requirements of high−performance ac machines control, (b) most popular electrical machines and (c) control techniques. Key development trends including the dominance of ac adjustable speed drives in new applications,...
Published: Feb 21, 2019
Processing power isn't the only thing that drives database performance. High performing server storage, such as enterprise - class solid - state drives (SSDs) , can dramatically improve the performance of databases compared to traditional hard disk drives (HDDs).
In our labs at Principled Technologies, we...
Published: Jul 26, 2018
Many moderate size Programmable Logic Device (PLD) designs, especially those in control plane applications, consist of a number of interfaces interconnected via an onchip bus to a microprocessor that may be on- or off-chip. Although each interface is often relatively simple, the task of building all the on-chip interconnections...
Published: Jul 19, 2018
Adding security to a device costs extra money, time, power consumption and makes everything worse. The only reason for adding security to a device is the need to improve marketing – security components help to sell more products. To participate in the evolution of Industry 4.0, the Internet of Things and cloud technologies...
Published: Sep 21, 2020
As more strict government regulations regarding power consumption appear, even traditional home and office appliances like LCD TVs, set top boxes (STBs) and multifunction printers (MFPs) are being scrutinized for ways to save power. To help ensure products are in compliance with the latest EnergyStar and European Commission...
Published: Jul 19, 2018
The Picor PI33XX Cool-Power® ZVS Buck Regulator Series delivers maximum power density and high effi ciency point of load DC-DC regulation. This unique, high density, buck regulator integrates a high performance Zero-Voltage switching (ZVS) topology along with power and support components all within a surface mount...
Published: Jul 24, 2018
This paper describes a method for reducing the power consumption of sensor systems by utilizing the standby functions of a microcontroller (MCU). In concrete terms, the frequency of sensor measurements is reduced, and the system is kept in the standby condition for as long as possible. Furthermore, abnormality detection...
Published: Jul 16, 2018
This paper describes a new two-phase cooling heat transfer cell based on a submerged vibration-induced bubble ejection process in which small vapor bubbles attached to a solid surface are dislodged and propelled into the cooler bulk liquid. This ejection technique involves forcibly removing the attached vapor bubbles with...
Published: Jul 20, 2018
When first introduced, logic product offerings consisted of quad, hex and octal standard logic gates, inverters and buffers. As integration and miniaturization occurred, the demand for logic solutions continued to grow, but shifted toward “control” or “glue” logic.
Control logic...
Published: Jul 20, 2018
This article examines how to synchronize multiple DC/DC buck regulators in a Master/Slave configuration using phase shift time delay. Phase shifting multiple converters prevents ON time overlapping and reduces RMS current, ripple and input capacitor requirements, which will improve system EMI and power efficiency. This...
Published: Jul 20, 2018
This white paper focuses on isolated digital interfaces conforming to RS-485, which continues to be the industry’s workhorse standard for data transmission. The paper provides an overview of RS-485’s common-mode voltage range (CMVR) definition, and explains how isolating a transceiver’s signal and...
Published: Jul 17, 2018
Modern power distribution systems often contain multiple power sources integrated within one system. A simple variant may be the common double-ended substation, which can be further complicated by additional emergency or alternate sources. This presents significant complexity to the designer attempting to design a protection...
Published: Jul 24, 2018
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: May 01, 2019