Resonant Controller-Power Switch Combination Enables Efficient Power Solution for LED Street LightingOctober 8, 2011 7:51 am | by Wonseok Kang, Sungmo Young, Fairchild Semiconductor, www.fairchildsemi.com | Articles | Comments
This article will explore a total solution for a switching power supply targeted to LED street lighting. The new resonant controller combined with new power switch enable a high efficiency solution for LED lighting power supplies without sacrificing
While form factor and electromechanical interference (EMI) remain a primary concern for smartphone designers, provisioning all of the high end peripherals in a format which is comfortable to hold and carry, creating a clean EMI ecosystem and not interfering with the wireless transmit and receive functions remains a complex challenge.
Rather than create a custom package, OEMs often choose to modify or customize a standard enclosure to lower development cost, reduce final product cost, and achieve a faster time to market.
The range of applications and functions of military electronics is rapidly expanding. From smart weapons to unmanned vehicles, the challenge of packaging significant processing power in very limited volumes that need to survive extremely harsh environments is rising.
Although there is still an abundance of oil and gas, the future requires continued technological improvement to access deposits that are found ever deeper underground. As these wells become deeper they also become extremely hot, and using high-reliability, high-temperature electronics for down hole drilling equipment is necessary.
Advanced high bandwidth, high data rate Digital to Analog Converters (DACs) are revolutionizing the way that microwave communication systems are designed. The ability to be able to perform direct microwave synthesis right up to C band brings higher flexibility...
In past years, energy management in electronics equipment has moved from being a “check-box” requirement to a real competitive feature and differentiator. Traditional DC-DC point solutions that optimize single parameter via fine tuning of components are just not sufficient...
Technology today doesn’t gradually evolve, it develops in leaps and bounds, and the processes that are necessary to bring that technology to market have advanced just as quickly. Unfortunately, sometimes speed can be our industry’s downfall -- when companies are caught in a bind; when parts are hard to come by, whether they have
Because of the performance demands on ICs, the use of cooling heat sinks on top of ASICs, CPUs and other processors is a standard industry practice. As the available real estate on PCBs has become sparse, physically attaching heat sinks to such devices has become a challenge for most applications, specifically for high-density boards. Thus, an engineer starting the process of thermal management must
Today we hear a lot of talk about energy harvesting and alternative power sources. To make effective use of these energy sources, everything in the entire system must make efficient use of power.
High power LED based light fixtures are replacing fluorescent and HID light sources in many general lighting applications. Since LED lighting represents a green technology, the issue of power factor is very important. Power factor is defined as
Speed. There is nothing of greater consequence in human communication than speed. Although we have come a long way since the pony express, the need for speed in the telecommunications industry is greater now than ever.
Every day, consumers embrace multiple levels of interconnecting in our activities without thinking about it. Whether it is waking up to an alarm clock, turning on the lights, placing a call on your cell phone, operating your automobile, accessing data on your computer from the cloud...
Improved cost of ownership and improved light quality can only be enabled if optimized drivers are used. These drivers take into consideration the unique characteristics of the LED semiconductor (i.e. color shift over temperature and age, life expectancy over temperature etc) and enable
Solar technology and energy market dynamics have intersected to create the perfect conditions for a new, deployment-friendly model for generating and distributing energy – the wholesale distributed generation (WDG) model.
Managing heat dissipation is one of the biggest challenges when designing electronic components and systems today. You can run simulations and measure full systems with high accuracy, but that can be time-consuming and costly.
Schottky diodes can play several important roles inside battery powered handheld electronics equipment, such as cell phone handsets and portable gaming consoles. They are often incorporated into the DC-DC boost converters used to power the backlights for LCD displays and LED keypads.
There are a number of innovative technologies that have been designed to assist in protecting the application and end-user from catastrophic thermal events...
To ensure optimal EHV performance, numerous tests must be conducted during the new vehicle development process. Suitable mobile vehicle data acquisition systems are vital for ensuring system competency, functionality and efficiency.
Any new innovation experiences obstacles. In LED lighting, one problem is the issue of Electromagnetic Interference (EMI), or unwanted noise signals.
When RoHS (Restriction of Hazardous Substances) was enacted in 2006, there was a critical need for engineers (and the industry as a whole) to have one dependable source to help understand and navigate the complexities of global environmental legislation.
The distribution channel has been engaged with the design community for more than 30 years. In that timeframe, innovation and advances continue to make a lasting and profound impact on how design engineers accomplish their goals.
While the power from RF energy is typically very low, RF energy is unique among energy-harvesting options because it can either be harvested from ambient energy or intentionally broadcasted to provide more reliable power-over-distance using very little energy from the electric grid.
With global prosperity on the rise, the demand for energy is increasing and is approximately expected to double by 2030. In parallel, there is a concern of energy supply issues on the long run. This has resulted in an increasing activity and proliferation of employing sustainable/alternate energy sources and improved energy transmission methods over the last decade from all fronts
Researchers have discovered a way to capture and harness energy transmitted by such sources as radio and television transmitters, cell phone networks and satellite communications systems.