CCFL inverters have smallest form factor
Product News 4/28/2006 Post a comment
Endicott Research says its S and SE Series (DC/AC) inverters, which can power up to two cold cathode fluorescent lamps (CCFLs) in display backlighting applications, have the industry's smallest form factor. They're available in both open-frame (S Series) and encapsulated (SE series) versions.
Improve the efficiency of mobile device backlighting
Design How-To 4/27/2006 Post a comment
Most mobile handsets use white LEDs as backlighting for the color display and it's a significant challenge to provide high efficiency and low cost without consuming precious board real estate. Here's an article that takes a look at pros and cons of what's available and offers a creative solution to this vexing power efficiency problem.
"Low-voltage, high-current" mini-DC/DCs deliver for telecom
Product News 4/24/2006 Post a comment
C&D Technologies touts its UWR 7-15W series of high-density, single-output isolated DC/DC converters for its "low-voltage, high-current" capabilities, and a heatsink-free, convection-cooled design that's suited to high-end telecom, industrial, transportation, and military equipment.
Flyback transformer tutorial: function and design
Design How-To 4/24/2006 3 comments
The low-cost and and ease of designing flyback transformers have made them a popular choice for power supply designs. Here's a quick tutorial to help you sharpen your design skills and get the most effective use from your flyback transformer. No longer do you need to rely on best guess for core design when you can use the formula provided in this article.
Get the lead out
Automotive DesignLine Blog 4/21/2006 Post a comment
There are estimated to be more than five million used lead-acid car and other vehicle batteries that are unaccounted for.
Eighth-brick provides full output to +70 C
Product News 4/21/2006 Post a comment
Power-One's new eighth-brick DC/DC converters in the company's EMS series, which include two single-output models that deliver 3.3 volts at 15 amps and 5 volts at 10 amps from an ultrawide 18-to- 60 volt input, deliver full power at +70 C with only 200 lfm cooling.
Flexible Batteriefilme mit lebenden Viren
News & Analysis 4/20/2006 Post a comment
Bisher hat die Batterie-Technologie weit hinter der Halbleiter-Technologie zurückgelegen. Während Chips ihre Kapazität etwa alle 18 Monate verdoppeln, benötigen Batterien dafür bislang ein ganzes Jahrzehnt.
Samsung SDI profit falls
News & Analysis 4/20/2006 Post a comment
South Korean plasma display maker Samsung SDI Co. Ltd. said its first-quarter operating profits showed a setback over the previous quarter due mainly to seasonal slowness, average selling price declines for its products, and a stronger Korean won.
FDK's first point-of-load converters target tough layouts
Product News 4/19/2006 Post a comment
FDK America's point-of-load (POL) converters, the first DC/DC products from the company, are designed for intermediate bus and distributed power architectures that require high efficiency, tight regulation, and high reliability in high-temperature, low-airflow environments.
ITC ordered to review Energizer patent case
News & Analysis 4/19/2006 Post a comment
The U.S. Court of Appeals for the Federal Circuit has issued a mandate to the U.S. International Trade Commission (ITC) to act again on the three-year-old Complaint filed by Energizer, which claims infringement of its mercury-free alkaline battery patent.
Improve top-level simulation strategy for switching DC-DC converters
Design How-To 4/17/2006 Post a comment
You're designing a switching DC-DC regulator for fabrication and you need to test its functionality and performance by running simulations, but the circuit complexity imposes serious challenges on your computing platform. How do you decrease simulation time without sacrificing fault-detection coverage? Here's an optimized simulation strategy to get you over the hurdle and to market on time.
UPSes cut downtime yet again
Product News 4/14/2006 Post a comment
Tripp Lite's SU5000RT4U and SU6000RT4U uninterruptible power supplies (UPSes) tout a unique power distribution unit (PDU) that allows UPS system maintenance and component replacement without power interruption.
Sun, EPA seek server energy spec
News & Analysis 4/14/2006 Post a comment
Taking a cue from the automotive industry, Sun Microsystems and other electronics companies are working with the Environmental Protection Agency to define a standard metric to measure energy efficiency in server technology.
Do the work ... load analysis
Power DesignLine Blog 4/13/2006 Post a comment
Power in small places, it's not about politics but about an intriguing talk at the Plenary session of the Portable Power Developer's Conference. It's all about doing the work load analysis.
Simple circuit design tutorial for PoE applications
Design How-To 4/12/2006 2 comments
Market pressures are driving designers to lower the cost and complexity of DC-DC converters that power PoE powered devices. And of course, performance is expected to improve. Here's a tutorial that provides simple circuit designs to help you meet these goals.
Compact AC/DCs add fan for peak efficiency
Product News 4/12/2006 Post a comment
The newest additions to Lambda's NV-175 series of AC/DC supplies, delivering up to 200-watts peak power, have a variable-speed, temperature-controlled low-noise fan for tight installations where system airflow is not available.
How to select the right MOSFETs for power conversion in POL architectures
Design How-To 4/10/2006 Post a comment
Point-of-load has become increasing popular not only for voltage levels below 3.3V but for designs requiring circuit intelligence for applications with multiple functions. However, there are several factors you need to consider when choosing MOSFETs for POL converters. Here's the information you need to know to ease the selection process.
Compact rectifier/charger signs on for 1 kW telecom
Product News 4/4/2006 Post a comment
TDI's newest AC/DC power module in its Signature series for telecom, delivering 1 kW at -54 VDC for rectifier/battery applications or +48 VDC for front-end architectures, touts packaging advantages for system designers by virtue of the module's relatively compact dimensions, 1U height, and light weight.
IC Industry Reps Discuss Chip Power Issues at ISQED
News & Analysis 4/4/2006 Post a comment
The recent International Symposium on Quality Electronic Design (ISQED) conference in San Jose, CA featured an evening panel on a very timely topic, "Power OptimizationWhat is the Real Cost of Long Battery Life?" In this commentary, Jim Lipman recaps this panel discussion.
Battery charging options for portable products
Design How-To 4/3/2006 Post a comment
Portable systems are everywhere and they all need a superior power source and charging system. Here's an excellent paper that analyzes the key tradeoffs inherent in battery charging technologies, and helps you identify the optimal solutions.