As LEDs continue to penetrate the market and replace last generation light sources, new engineering challenges arise. These challenges come in the form of thermal, optical and electrical issues. For the electrical engineer, maximizing efficiency is usually at the top of the list. However, selecting the proper LED driver topology sometimes can be dictated by the application.
It isn’t easy to be an engineer these days. You have to be on top of rapidly-developing technology while creating devices and systems with the latest in functionality and integration.
As the demand for high-performance, cost-effective systems continues to increase, power system design has become more challenging and complex than ever before. In addition to being responsible for the critical selection of the most cost-effective board mounted power solutions from discrete to modular dc-dc solutions and other board-level components...
This year’s CES brought forth a number of new and exciting products and technologies for the consumer. As with each year’s show, there were hits and misses with some products primed to become major retail successes while others may never make it to the store shelves.
At the fundamental and certainly traditional level, electronics design is about assembling and connecting electronic components together to achieve the intended, functional result. It’s a workable view that has loosely fitted the process of electronics design since its inception – even when you take into account the more ethereal concepts of embedded systems and software-defined functionality.
For DC-DC converters, fast transient response has become ever more critical because of the increasingly higher speeds of contemporary devices.
A new world of printed electronic display technology is evolving, offering unlimited opportunities for mass consumer and industrial applications. New flexible, printed displays are increasingly being integrated into a variety of everyday products...
Long term evolution (LTE) is firmly on course to be the dominant wireless communications standard in the next decade. There is overwhelming operator commitment to adopting the LTE standard and capitalising on the unquestionable benefits it will bring to their subscribers, even more so than was demonstrated for its 3G predecessors.
Selecting the best isolated brick DC/DC converter for an application can pose a challenging task for the design engineer. There are a number of circumstances that can motivate a particular choice. These could be transient response, efficiency, environmental conditions, or mechanical packaging.
Today, switch manufacturers are no longer developing just the switch. Original equipment manufacturers are frequently requesting that switch manufacturers develop the complete module, which may include an electro-mechanical switch or sensor, complementary electronics, a source of illumination, and a means of connection.
USB is the interface of choice for many of today’s consumer electronics products. Everything from cameras, to telephones and media players, as well as portable navigation devices use USB. Even devices with wireless interfaces, such as a Bluetooth phones, need to be connected to charge their batteries. USB provides the perfect interface: it is in widespread use and has a very well defined connector that makes it easy for both carmakers and device makers to use.
From smartphones to netbooks and everything in between, mobile devices are rapidly changing the way in which the world communicates. New platforms, operating systems and application frameworks are altering the embedded mobile playing field, driving the need for developers to stay ahead of market trends and end-user expectations. The new game has developers more focused on understanding the different technologies being used, and how each can create enriched mobile experiences that match to shifting end-user demands.
Given the improved performance of modern parts and packaging, how much certification and categorization does a product intended for operation in a harsh environment require?
Much has been written about the efficiency of Class D amplifiers, with figures of 90 percent or greater being routinely quoted. Such numbers might seem to suggest that the efficiency problem of audio amplifiers has been well-solved by conventional Class D. However, a closer look shows that this is far from the truth, with these amplifiers frequently seeing only single-digit percentage efficiencies, in real product usage conditions.
With so much of the ongoing development work for hybrid electric vehicles (HEV), plug-in hybrid electric vehicles (PHEV) and pure electric vehicles (EV) involving the use of lithium-ion (Li-ion) batteries, many discussions at OEMs, electronics suppliers and battery manufacturers focus on how best to structure battery monitoring and management systems.