Gate drive optocouplers are widely used for driving IGBT and Power MOSFET because of the high output current driving capability. Traditionally, gate drive optocoupler use bipolar transistors for the output stage to deliver high output current.
Are you a “Themimech” engineer? Rising frequencies of many applications are now forcing engineers to be aware of and plan for issues related to rising frequencies in electronic devices and systems and to participate in mutually supportive designs.
The other day I was driving to the local dump to drop off a load of trash carefully stacked into the back of the family minivan. Suddenly I noticed that the “trunk open” light came on. I quickly pulled over just as the rear hatch popped all the way open and the van began to empty my garbage bags all over the road.
For several years now, many of the gadgets we use around the house, on the move and in the workplace have contained some form of visual display to impart status information to the user and even allow the user to interact with them via a touch screen.
Thermoelectricity has been known since the 1830s. Two functional principles are included under this term: The popular Peltier-Effect describes how electric current flowing through thermoelectric material transports heat, creating a cooling effect.
Hydrogen fuel cells can be used in a wide range of environments such as use in homes, ships, cranes and vehicles. Still, current funding is directed mostly to the transportation sector to be reduce pollution. In this article, we will focus on one of the most exciting uses for fuel cells: a Zero Emission Vehicle (ZEV).
With increasing pressure to lower test costs, many RF test engineers face the challenge of reducing measurement time. As you might expect, wireless LAN (WLAN) device testing is no exception. Whether you are creating an automated test system for design validation or final production test, it has become increasingly important to optimize a test system for measurement speed.
Wireless Local Area Networks (WLAN) have proliferated within the enterprise. While the cost of deploying a WLAN solution has dropped over the last several years, the operational expense of maintaining and managing a WLAN continues to rise.
Wi-Fi is a standards-based technology, and most designers assume that their finished products will work out of the box on any Wi-Fi infrastructure with which they’re used. By and large they’re right. However, there is a world of difference between simply working and working optimally.
What value does a component distributor offer other than obtaining goods from a single source? Can they offer value beyond that convenience? Large distributors offer everything from resistors to fully programmable gate arrays (FPGAs).
The electronic component distribution market has gone through many changes over the past decade. Currently, one of the biggest problems is the emergence of counterfeit components, largely stemming from China. Although the Asian marketplace has proliferated in flooding the market with more and less expensive components, domestic profit margins have decreased largely in part to counterfeit product.
When the first white goods were invented in the 1850s, there was a passion to innovate and design new machines to assist in nearly every room of the house. Now that the typical family has 6-10 major household appliances, a new mantra has emerged in appliance design: do more faster with less energy at a painfully minimal cost.
Although system designers can't always control the operating conditions of embedded computing applications, they now have new cost-effective options for delivering 3U CompactPCI (cPCI) board compatibility in harsh, extreme temperature environments.
The new report “Batteries, Supercapacitors, Alternative Storage for Portable Devices 2009-2019” is directed towards those developing, marketing and using small electronic and electrical devices, particularly those that are self-sufficient.
The electronics industry is enjoying what appears to be a generally strong recovery from the brutal business conditions with which we were confronted in 2009. It is interesting to note that although the economic meltdown traumatized almost all sectors of our industry and caused a sharp drop in sales, several basic industry trends continued unabated.
Hardware virtualization, and the hypervisors that enable it, have become a hot topic in the embedded space. But while virtualization opens up new possibilities for system architects and designers, it also poses new challenges, especially when used with real-time applications.
Designing Custom, Low-Cost Instrumentation for Test and Measurement Using Off-the-Shelf FPGA ModulesApril 29, 2010 11:36 am | by Jake Janovetz, Opal Kelly | Articles | Comments
Designing for industrial applications presents many challenges, but it also allows an engineer to be creative, spread her wings, and explore new technologies to solve the task at hand. Field-Programmable Gate Arrays (FPGAs) and, in particular, commercial off-the-shelf (COTS) FPGA modules can be just the ticket to attack industrial applications that used to be a much more difficult challenge.
Industrial applications, such as home and commercial building automation, data loggers, point-of-sale terminals and cash registers, in-house displays for energy metering, alarm systems and medical equipment are starting to join the “smart” revolution currently enjoyed by portable media player and smartphone markets.
Monitoring the condition of large industrial machinery provides long term benefits in terms of lower production cost, reduced equipment down time, improved reliability, and increased safety. Industrial manufacturers face a constant battle in keeping production equipment operational.
LCD displays are widely used in cell phones, personal media players, internet tablet PCs, laptops, and large-screen TV sets. These displays account for a major part of the power consumed by these devices. For example, a mobile phone screen may consume upwards of 40% of the system power, while in a large-screen TV, the display may consume 70% or more of the system power.
The touchscreen is rapidly becoming the user interface technology of choice in applications ranging from retail, industrial and automotive, to medical, digital signage and gaming. Their growing popularity has been fuelled in part by the phenomenal success of the iPhone and its highly user-friendly, all touchscreen controls...
The arrival of the iPhone on June 29, 2007 did not just win Apple an overwhelming presence in the personal gadget world, but also changed consumers’ perception of human machine interface forever. The user-driven human touch sensing design is not just intimate with its customers; it is loved.
The newest generation of household appliances and white goods includes more electronics than ever, enabled by innovation and integration in 32-bit microcontrollers (MCUs) along with advances in the always-reliable low-end 8-bit controllers.
Thanks to microcomputer-based control electronics, consumer white goods and home appliances are easier and more convenient to use, work better and are more energy efficient. But what if something in the circuitry goes wrong?
The U.S. Department of Energy (D.O.E) is pushing to encourage conservation by getting consumers to replace old, wasteful appliances with new, more efficient Energy Star certified machines. A program that kicked in last year will offer consumers cash to help buy new home appliances.