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.
India's space agency is planning the nation's first manned space flight for 2016, if it gets government approval of the project budget, an official said Thursday. The Indian Space Research Organization has sought 120 billion rupees ($2.6 billion) to put two astronauts in space for a week, spokesman S. Satish told The Associated Press.
Imitation Web sites of both Google and YouTube have emerged in China as the country faces off against the real Google over its local operations. YouTubecn.com offers videos from the real YouTube, which is blocked in China.
In today’s rapidly growing healthcare marketplace, portability and functionality are the name of the game when it comes to medical devices. Healthcare is steadily moving away from hospitals to the point of incident and into the patient’s home. Around the globe, physicians and patients are turning to low-cost telemedicine solutions that give patients the ability to safely and effectively monitor their own health.
Today’s advanced applications are creating an insatiable appetite for memory - driving the demand for new memory technology capabilities. As the market for more compact, more powerful electronic systems grows, designers are under increasing pressure to find new ways to fit the volume of code and data needed onto these shrinking devices.
Haiti is full of hard-working and industrious people just looking for a chance to break out of the vicious cycle of poverty and nonfunctional social systems that keep it the poorest country in the Western Hemisphere. They only need a hand up, not a hand out, to "jump over their own shadows" and build a nation that functions for all of its people.
Wireless transceiver technology is truly established in the automotive industry with Remote Keyless Entry (RKE) now a standard feature of even basic specification vehicles. Following on its heels has been Passive Keyless Entry (PKE), dual transceiver devices that combine remote entry and remote starting, and systems that enable features such as tyre pressure monitoring and car-to-home communications.
As demand for longer battery life in portable devices increases, engineers are continually challenged to design highly efficient point-of-load (POL) converters while maintaining or reducing board space. Adding to the challenge is the fact that many portable devices like laptop computers have wide input voltage variation.
Are video games the equivalent of crack? That's the alarm sounded by a hyperbolic Fox News Live Science article titled, “Analysts: Video Gamers Get Hooked for Life, Could Become Addicted.”
Applications with high voltage and capacity requirements are adopting Lithium-ion (Li-ion) technology because of its many advantages- especially the high energy density, small size and low weight that this technology provides. Historically, Sealed Lead Acid (SLA) batteries have had a few superior technical traits...
Life threatening situations require the use of portable medical devices to deliver the right information to doctors in medical settings, emergency personnel on the go, and patients at home so they can make informed decisions.
The New York State Health Department’s June 30, 2009 Hospital-Acquired Infections Report has drawn serious attention of healthcare professionals and the public to the daunting challenges faced in eliminating contamination and disease transmission rampant in hospitals and other healthcare facilities.
The New York State Health Department’s June 30, 2009 Hospital-Acquired Infections Report has drawn serious attention of healthcare professionals and the public to the daunting challenges faced in eliminating contamination and disease transmission rampant in hospitals and other healthcare facilities...
Application of high temperature quartz oscillators in oil, gas, and geo-thermal exploration has been the subject of increasing discussion in recent years. The need for these devices, and high temperature electronics in general, has arisen from application requirements that have pushed the upper temperature range limit higher.