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
Macro-scale energy harvesting technologies in the form of windmills, watermills and passive solar power systems have been around for centuries. Now, as designers seek to cut the cords, they turn to microenergy harvesting systems that can scavenge milliwatts from solar, vibrational, thermal and biological sources.
...
Published: Jul 23, 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
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
Under certain environmental conditions such as high moisture and elevated temperatures or in the presence of ionic contamination, a slight amount of surface oxidation has been found to form on the surface of a small percentage of IHLP inductors.
The following report contains construction details, the results of analysis,...
Published: Jul 25, 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
With the recent rise of the Internet of Things (IoT), 14 billion devices are now connected. However, the growth of this is also significant, by 2020 it is predicted that over 50 billion devices will be connected. With these devices connected, systems are opened up for remote access and control. In turn, this has shown...
Published: Jul 17, 2018
A novel approach for providing microprocessor power directly from 48V is proposed. This solution enables high voltage, low current to be distributed throughout a system, minimizing distribution losses, while providing low voltage, high current direct from the 48V input in the most efficient manner possible.
This solution...
Published: Jul 25, 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
Amid the multitude of advanced technologies being integrated into automated packaging operations today, one of the most reliable and versatile components —inductive sensors—have been holding their own for decades. These simple sensors pack a big punch for OEMs and end users alike. This whitepaper inlcudes a...
Published: Jul 17, 2018
Ask system designers to list the problems they face – it doesn’t matter whether they’re building mobile consumer, automotive, industrial, medical or scientific applications – and inevitably they’ll mention optimizing host processor performance. It’s hardly surprising. The event-driven...
Published: Jul 19, 2018
Digital power is one of the most important technologies for reducing power consumption and managing the growing power complexity in modern electronic systems.
This paper explores the many benefits for system designers working with digital power modules, and shows how digital power modules can simplify the design of...
Published: Jul 23, 2018
As electronic systems continue to trend toward lower voltages with higher currents and as the speed of contemporary loads continues to increase, the power systems designer is challenged to provide small, cost effective and efficient solutions that offer the requisite performance.
Traditional power architectures cannot,...
Published: Jul 25, 2018
Learn how optically - isolated relays can improve the performance of data acquisition systems and industrial machines.
However, solid-state devices are not created equal when it comes to these performance advantages. Optically-isolated solid state relays, in particular, can outshine other solid-state devices...
Published: Jul 24, 2018