Wireless Power with RF Energy Harvesting for Medical Applications

Wireless devices have a pivotal role in our everyday life: just think of smartphones and computers and how frequently we rely on continuous power supply or long battery life. RF energy harvesting systems allow limiting battery use and improve safety by offering advantages to the entire application market that is expected to grow by 22% … Read more

Short Discharge Time as a Characteristic of Battery Technology

When selecting cells for a power battery, it is useful to have the ability to quickly compare various cell technologies, and calculate the resulting pack resistance and efficiency, independently of capacity and voltage. This article proposes a way of doing so, using the “short discharge time”, the theoretical time required to discharge a full cell … Read more

Determining Inductor Power Losses and Their Affect on Efficiency

As a power supply output current requirements continue to increase, it is important for the design engineer to pay close attention to inductor power losses and their affect on overall power supply efficiency. This paper introduces the basic formulas to determine the approximate inductor power losses. AbstractAs a power supply coutput current requirements continue to … Read more

Fujitsu Easy DesignSim

The Fujitsu Easy DesignSim tool can speed your next design project! The tool is a comprehensive online design simulation and support solution for design engineers working with Fujitsu’s power management ICs (PMICs). The Fujitsu Easy DesignSim tool can speed your next design project! The tool is a comprehensive online design simulation and support solution for … Read more

True RMS Self-Powered AC Voltmeter

The voltmeter fits an industry standard “oiltight” 30 and 30.5 mm / 1.2 inch round panel cutout. The 7.6 mm / 0.3 inch four-digit LED display is housed in a rugged round polycarbonate case that provides protection against dust, moisture, vibration and shock. It is supplied with an EPDM rubber gasket and plastic hex nut … Read more

Challenges and Solutions in Advanced Powertrain Controls

Each new generation of powertrain controls challenges systems designers with higher complexity and the need for increased computing performance. Driven by global regulations, performance requirements include increased throughput, memory, peripheral and advanced packaging capabilities. Increasingly tougher emission regulations, as well as unprecedented fuel efficiency targets, require sophisticated systems that extend well beyond traditional spark ignition … Read more

MAKING WIRELESS TRULY WIRELESS: NEED FOR UNIVERSAL WIRELESS POWER SOLUTION

Wireless power is not a new technology. Different embodiments have been in development for over 180 years with differing degrees of success. However, until recently, with the invention of the microprocessor, wireless power has not been a  ABSTRACT Wireless power is not a new technology. Different embodiments have been in development for over 180 years … Read more

Power Management in Noise-Sensitive Applications

It’s best to take a careful, systematic approach when designing the power distribution system in noise-sensitive applications, like broadcasting, to ensure ideal performance. Not only does one need to consider all the usual parameters in a power management design, like input voltage, output voltage, and current, but also how to handle power supply noise to … Read more