Chip-scale packaging comes of age for power devices Design How-To 11/28/2005 Post a comment Chip-scale packaging saves precious space but as in most designs, there are trade-offs. It has been said that chip-scale packages create assembly and manufacturing difficulties. But this miniature device has finally arrived with successful implementations for a wide variety of power devices. Are they right for your designs? Find out here.
Railway supply powers signalling Product News 11/25/2005 Post a comment Absopulse Electronics’ 3PFC280-24BR is a modular AC/DC power supply with power factor corrected (PFC, to 0.97) input designed to meet the stringent requirements of railway signalling, communications and train control systems.
Attempting clairvoyance with battery performance Design How-To 11/20/2005 Post a comment Portable devices are extremely popular and getting more so. Unfortunately, advancements in circuit and system integration have outpaced energy and power density improvements in the battery. Here's how you can ensure your design squeezes the most battery life from your portable design.
Lithium-ion system backs up telecom Product News 11/18/2005 Post a comment Saft's Intensium 3 is a self-contained, 48-volt lithium-ion battery system for telecom power backup. The hot-pluggable unit, suited for 19-inch, 3U rack-mounted applications, has a capacity of 2.2 kW-h. The systems currently available to customers feature a volumetric energy density of 136 Wh/l, surpassing most advanced valve regulated
lead-acid (VRLA) designs. They require no maintenance and are self-monitoring.
EL lamp driver boasts higher brightness Product News 11/18/2005 Post a comment Touting lower noise and a patented high-voltage circuit to deliver higher brightness levels, the HV859 driver IC from Supertex delivers ±105 volts to electroluminescent lamps measuring up to 5 in2 for LCD backlighting, PDAs, mobile cellular phone keypads and other handheld wireless devices.
How far have we come? Power DesignLine Blog 11/17/2005 Post a comment Have we lost sight of power management when the indications are power consumption has jumped, cooling requirements for new installations are through the roof. There's hope with the implementation of some initiatives and new designs - but is it enough?
Single-cell battery charger offers accuracy, small size Product News 11/17/2005 Post a comment Microchip Technology expanded its analog power-management family with the MCP73831 battery charger. It's a fully-integrated, single-cell, Li-Ion/Li-Polymer charge-management controller with a pass transistor, current sense and reverse-discharge protection.
Compact modules simplify PFC design Product News 11/17/2005 Post a comment BI Technologies' Model 7720 family of power-factor-correction (PFC) modules offers design engineers a convenient way to add boost-type power factor correction to their switching power supplies. The low-profile modules range from 500 watts to 3 kW (heatsink required). A ready-to-run evaluation board/design tool is also available to test the designs.
Modular power system expands to 1.2-kW Product News 11/15/2005 Post a comment Expanding its line of modular power sources, Agilent Technologies is rolling out four new ultra-fast modules and two mainframes that extend to 1200-W. With these products, the company claims it's now the industry leader in the number of outputs and amount of power that can be packed into a 1U-sized rack-mountable system.
Get beyond ON/OFF fan control Design How-To 11/14/2005 Post a comment Today's downsized electronics have increased capabilities but at a cost of more heat. You need a thermal managagement strategy and here's how you can maximize your designs to remove heat.
Lead-acid batteries tout longer life Product News 11/11/2005 Post a comment EHM’s new heavy duty, sealed lead-acid batteries have grids made from a lead-calcium alloy that enables a battery float life of 15 to 20 years. The 6-volt, 12 A-h gel batteries, which rely on what the company says is a unique low-cost gas recombination system to convert generated gas to water, are thus suited to very long-life applications, including emergency lighting, fire and security and traffic monitoring, uninterruptible power supplies, telecommunications, and power tools.
Semi-custom AC/DCs extend their range Product News 11/10/2005 Post a comment The A2000 from Powerstax, a 19-inch rack mount configurable AC/DC supply family, is a semi-custom solution that provides more than 46,000 output configurations without cost overhead and extended lead times.
DC/DCs adapt to lead-free Product News 11/10/2005 Post a comment Ericsson Power Modules’ latest PKR DC/DC converters, an updated version of the series introduced in November 2004 as a higher-power and more thermal-efficient alternative to the company's PKF MacroDens family, has a new open-frame design to cut cost and improve compatibility with lead-free soldering processes, to which the MacroDens' molded construction is not suited.
Paper-thin battery firm raises $30 million News & Analysis 11/9/2005 Post a comment Power Paper Ltd., the Israeli group developing thin and flexible micro-power source technology and devices has nearly doubled the financial backing from venture capital groups by raising a further $30 million. The extra funds will be used for further development of and finding new applications for the paper-thin battery.
PDUs with monitoring facilitate multi-kilowatt delivery Product News 11/8/2005 Post a comment HP's new Monitored PDUs (power distribution units), the HP 17.3 kVA S348 for North America and Japan, and the HP 22.1kVA S332 for international configurations, supports high-power rack-mount applications with three-phase power in and single-phase power out. A local power display on the PDU allows system designers to set up and configure the PDU and monitor RMS current, system status, and overload conditions.
Wide-input half-brick answers telecom call Product News 11/8/2005 Post a comment Beaverton, Ore.—V-Infinity's VHB50W, for telecom and industrial applications, meets customer demand for a low-power half-brick that works from a 4:1 input. The converters, in 10 models, deliver up to 50 watts at 3.3 to 24 volts from a 9-36 or 18-72 VDC input.
New modularBCD process technology leads to next gen power management chips News & Analysis 11/7/2005 Post a comment MagnaChip Semiconductor installed the Advanced Analogic Technologies proprietary 0.35-micron multi-voltage mixed-signal ModularBCD process technology in MagnaChip's 200-mm submicron fabrication facilities in Seoul, South Korea. The ModularBCD devices are designed to manage power and extend battery life in mobile consumer electronic products.
POL's ultrafast transient response meets digital demands Product News 11/7/2005 Post a comment Product Review - Texas Instruments characterizes its latest generation PTH family of point-of-load converters (better known as POLA modules by the OEM community for the company's participation in the point-of-load alliance initiative) as a breakthrough for higher speed, more accurate, smaller sized and more economical POL-based systems for telecom, datacom, and wireless base stations.
Catch the unique power management requirements for next-generation PCI backplanes Design How-To 11/6/2005 Post a comment The need for speed is all around in the electronics world but even faster IC processing isn't enough to keep up with some needs such as faster buses. Why? Because of bus capacitance, signal skew, and some unpredictable tolerances. These issues are lock-step connected with the power supply for bus transceivers. Here's what you can do to get optimal performance from your bus.
DC/DCs get down for low-power industrial apps Product News 11/4/2005 Post a comment Only a third of an inch high, Wall Industries' new JF series of low-power DC/DC converters, in eight models, is suited to low-profile applications in telecom, networking, and industrial controls. These single-output converters, with a footprint of 1.1-by-0.94 inches and available in surface-mount or through-hole versions, deliver up to 15 watts at 3.3, 5, 12, or 15 VDC from an 18-36 or 36-75 VDC input.
Artesyn reports flat quarter News & Analysis 11/4/2005 Post a comment Power supplier Artesyn Technologies Inc. posted third-quarter net earnings of $4.0 million, or 9 cents per share on sales of $102 million, compared with $3.6 million, or 9 cents per share on sales of $107 million in the year-ago third quarter.
PCB-mounted supplies stress safety Product News 11/4/2005 Post a comment Bear Power Supplies' new BP-3 series of encapsulated pc-board mountable AC/DC modules features a mini-IEC input connector and detachable line cord for the AC power input to eliminate exposed connections while simplifying system design, testing and certification tasks.
EPA to attend Standby Power Conference in Korea News & Analysis 11/2/2005 Post a comment The US Environmental Protection Agency will have an Energy Star representative at the international standby power conference, Global Cooperation on 1 Watt, in Seol Korea. The EPA will make strive to help harmonize power guidelines globally to reduce energy waste.
Sanyo to unveil eco-friendly NiMH battery News & Analysis 11/2/2005 Post a comment Sanyo Electric Co. Ltd. will this month begin selling a rechargeable nickel-metal-hydride battery the company said is designed to be environmentally friendly while offering the user the convenience of a dry cell battery.
APEC 2006 Moves to Dallas Product News 11/2/2005 Post a comment APEC the global power electronics conference and exhibit will be held March 19-23, 2006 in Dallas, Texas. The hurricane aftermath forced the move from New Orleans.
Blog Doing Math in FPGAs Tom Burke 15 comments For a recent project, I explored doing "real" (that is, non-integer) math on a Spartan 3 FPGA. FPGAs, by their nature, do integer math. That is, there's no floating-point ...