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Content tagged with Power
posted in July 2005
Buck Topology Provides Boost with Low Ripple and Noise
Design How-To  
7/29/2005   Post a comment
Battery operated circuits often require a regulated voltage that is higher than a low battery can supply and lower than a fully charged or charging battery. Here's an article that tells you what you can do to provide a regulated output voltage while the input voltage varies for these battery operated devices.
AC/DC supplies front industrial, medical applications
Product News  
7/29/2005   Post a comment
Artesyn Technologies' NLP250 AC/DC power supplies, which deliver up to 250 watts, are suited to front-end conversion solutions and distributed power architectures, including medical applications. The supplies provide a choice of 12-, 24- or 48-volt outputs to simplify system integration (main channel output current is 21, 10.5, and 5.25 amps, respectively), and are supported by control and monitoring features to satisfy a wide variety of DC supply requirements.
14-slot AdvancedTCA shelf adds performance
Product News  
7/29/2005   Post a comment
Tracewell Systems' second generation CO-Star 14-slot AdvancedTCA (ATCA) Central Office Shelf touts numerous design enhancements including an advanced split backplane design for easy customization, highly robust construction, board-to-board assembly to eliminate internal wire harnesses, and additional airflow capacity for cooling beyond 200 watts per slot.
Power-One loss misses guidance
News & Analysis  
7/28/2005   Post a comment
Power supplier Power-One Inc. reported a net loss of $14.8 million, or 17 cents per share on sales of $63.4 million in the second quarter ended June, compared with a net loss of $3.9 million, or 5 cents per share, on sales of $72.5 million in the year-ago quarter.
AC/DC supply meets VME/VXI requirements
Product News  
7/28/2005   Post a comment
The 57S81 from North Atlantic Industries, working from a 115/230 VAC or 270 VDC input, delivers up to 500 watts for Versa Module and extended instrumentation (VME and VXI) applications associated with industrial and military (NAVMAT compliance) requirements.
Artesyn closes Hungary plant as profit falls
News & Analysis  
7/26/2005   Post a comment
Power supplier Artesyn Technologies Inc. announced it will close its Tatabanya, Hungary plant and outsource its European manufacturing to electronic manufacturing services provider Celestica Inc.
Millennium Cell to receive funding for fuel cells
News & Analysis  
7/25/2005   Post a comment
Millennium Cell Inc. said that its proposal to develop a high-volume manufacturing process for fuel cartridges based has been awarded a contract by the National Center for Manufacturing Sciences.
12-port midspan touts compact, low-cost design
Product News  
7/25/2005   Post a comment
PowerDsine differentiates its 3012 power-over-Ethernet (PoE) midspan, a 12-port device that's the latest in the company's 3000 Midspan family, from competing products by its compact design and low price-per-port. "PowerDsine's 3012 Midspan is tailored to address the budgetary constraints of small- to medium-sized businesses that desire the flexibility to expand their enterprise networks," said Igal Rotem, CEO.
Atmel Corp. joins Z-One power alliance
News & Analysis  
7/25/2005   Post a comment
Semiconductor supplier Atmel Corp. has joined the Z-One Digital Power Alliance, which currently includes power supply manufacturers Power-One, Inc. and C&D Technologies.
Dual-output miniDIPs simplify DC/DC portable power
Product News  
7/22/2005   Post a comment
The dual-output G100E family of miniaturized DC/DC converters from MicroPower Direct delivers 1 watt for a wide variety of board level applications in which space is limited. As part of the company's "Budget Saver" series of products, the converters are designed to be cost-effective for process/machine control systems, board level data-acquisition systems, portable/battery-backed equipment, robotic systems, and board level power distribution subsystems.
Quarter-brick delivers 420 watts at 70°C
Product News  
7/22/2005   Post a comment
Focusing on an ever popular theme, highest useable power, Power-One says its QTS48T46096 quarter-brick bus converter delivers in excess of 400 watts at +70°C. Over its operating range, the converter delivers up to 46 amps at up to 97 percent efficiency.
Vertical-mount POLs rise with sequencing
Product News  
7/22/2005   Post a comment
Designed particularly for space-constrained installations and compact control of the power distribution network, Artesyn's new vertical-mount PTV series of point-of-load (POL) DC/DC converters are offered in eight versions to simplify a broad range of board designs. As with the company's PTH series, the PTVs include Auto-Track sequencing to allow multiple converters to track each other, or an external voltage, for powering-up/down DSPs, FPGAs and ASICs.
Smaller power ICs facilitate extended PoE
Product News  
7/20/2005   Post a comment
Focusing on higher density for extended portable applications, Power Integrations has further expanded its DPA-Switch family for power-over-Ethernet (PoE). The company's four new DPA-Switch devices come in S-PAKs, which provide a footprint savings of 40 percent and reduce package height by 55 percent as compared to the existing TO-263. There's no tradeoff in equivalent thermal impedance.
AC/DC complies with power-over-Ethernet
Product News  
7/20/2005   Post a comment
Astec Power’s first power-over-Ethernet (PoE) supply, its DS657, delivers 657 watts at a nominal 48 volts in a 1U package for midspan and endspan implementations. The fan-cooled supply, working from a universal AC input, also includes an isolated 12-volt source for distributed power applications.
Mobility Electronics, Xantrex to market power inverters
News & Analysis  
7/20/2005   Post a comment
Mobility Electronics Inc. and Xantrex Technology Inc. have signed an agreement to jointly develop and market a family of portable power inverter products combining Mobility's itip technology and Xantrex's inverter technology.
TDK to acquire Lambda Power Division from Invensys
News & Analysis  
7/19/2005   Post a comment
The restructuring of the global power supply industry has taken another turn as Japan-based TDK Corp. has agreed to acquire the Lambda Power Division from London-based Invensys plc., for $235 million.
Board-mounted supply resists the elements
Product News  
7/19/2005   Post a comment
Wall Industries' new board-mounted dual front-end power supplies in the company's PSAQC60 series are dirt-, dust-, and moisture-resistant. The supplies deliver 60 watts from a 90-264 VAC or 120-370 VDC input.
POLs ride mobile communications
Product News  
7/19/2005   Post a comment
V-Infinity's VPOLXXX-12W series of point-of-load converters, touting a wide input-voltage range (6-14 VDC) that suits them to boards powered by a loosely-regulated intermediate bus, provides 10, 16 and 20 amps at 0.75 to 5 volts (trimmable) for such applications as mobile communications and computing.
How do I Feed My Power Needs? A look at Ultracapacitors
Design How-To  
7/18/2005   Post a comment
Here's a simple method for approximating an appropriate ultracapacitor solution based on the application needs. Get the specifics on how to determine the correct size ultracapacitor for your application.
Quenching the thirst of RF power amps and extending the life of portable devices
Design How-To  
7/15/2005   Post a comment
The life-blood of any portable device is the battery life and runtime. The shrinking size of these portabl devices is at odds with the capability to supply longer-lasting batteries, so other means, such as the power amp efficiency, must be found to improve battery life. Here's how you can improve the PA efficiency without affecting its linearity.
Shift Happens -- Part 2
Power DesignLine Blog  
7/15/2005   Post a comment
Don responds to the queries he received from his previous Shift Happens blog where he suggested that the availability of digital control would catalyze innovation in base switch mode topologies. Is digital sounding the death knell for analog control? Probably not but it is a significant change.
Single-, three-phase DIN supplies deliver 480 watts
Product News  
7/14/2005   Post a comment
Lambda's two new DIN-rail power supplies in the company's DHP series, the DHP480-24-1 and DHP480-24-3, deliver up to 480 watts from a universal single- (85-264 VAC) and three-phase (340-575 VAC) input, respectively, for such applications as process control, factory automation, and automotive manufacturing.
Wide-input quarter-brick drives the 9-volt bus
Product News  
7/13/2005   Post a comment
Cherokee International's 5:1 fixed-ratio quarter-brick, the CBQ5, is suited for use as an isolated intermediate bus converter, and the wider-range, input-voltage requirements for North American central office and telecom applications including optical networks, routers, enterprise servers, and storage area networks.
Get single resource for network power protection services
News & Analysis  
7/12/2005   Post a comment
MGE IT services provides network administrators and facility managers with single resource for network site services.
How power management can differentiate your designs
Design How-To  
7/9/2005   Post a comment
How important is it to have a power management strategy? Critical, especially as power requirements become more complex. Here's what features you will need to keep your customers satisfied.
TI adds Auto-Track to 3-amp POLA modules
Product News  
7/8/2005   Post a comment
Texas Instruments' PTH08000W and PTH04000W plug-in power modules, its first 2.25- and 3-amp (nonisolated) regulator boards with the company's Auto-Track sequencing technology for simplifying power-up and power-down scenarios, ease power design in industrial and data communications systems that employ high-speed microprocessors, FPGAs, ASICs and TI's TMS320 digital signal processors (DSPs). The (nonisolated) DC/DC converters, compatible with Point-of-Load Alliance (POLA) specifications, feature
La pile à méthanol dégage une puissance électrique record
News & Analysis  
7/8/2005   Post a comment
NTT Docomo Inc. et les laboratoires Fujitsu Ltd. ont développé ensemble un prototype de pile à méthanol direct qui peut fonctionner avec une solution de méthanol pratiquement non dilué. Les chercheurs affirment que cette pile donne une puissance moyenne record d’environ un watt.
1U rack provides PoE and network RPS compatibility
Product News  
7/7/2005   Post a comment
Phihong USA has introduced a 1500-watt 1U rack for RPS and bulk power sources. With quick-disconnect connectors for three individual loads, the new PSM1554 accepts three PSM500 500-watt power supplies. Applications include Power-over-Ethernet (PoE), VoIP phones, DC UPS, lighting systems with a single UPS, and network redundant power sources (RPS).
Brick delivers 600 watts with full military regalia
Product News  
7/7/2005   Post a comment
Emerson Network Power's Astec AIF-300Vin full-brick DC/DC converters, which include a microprocessor with I2C interface and memory for advanced control and monitoring functionality, deliver up to 600 watts for demanding military, industrial, and test-and-measurement applications. The single-output converters, six versions in all, provide 1.8, 3.3, 5, 12, 15, or 24 volts at rated power from a 250-400 volt input.
Neue Brennstoffzelle bringt Rekordleistung
News & Analysis  
7/7/2005   Post a comment
Der japanische Telekommunikationasnbieter NTT Docomo und Fujitsu Laboratories Ltd haben eine Brennstoffzelle entwickelt, die mit fast reinem Methanol arbeitet. Die Zelle liefert eine rekordverdächtige Ausgangsleistung von rund einem Watt.
300Vin DC/DC Converter features I2C Communication
Product News  
7/6/2005   Post a comment
Emerson Network Power introduces the latest Astec half-brick 300Vin DC/DC converter with I2C communication.
Switcher delivers dependable roadside service
Product News  
7/6/2005   Post a comment
Pleasanton, Calif.—The APS150RS-IND series of AC/DC switching supplies from Advanced Power Solutions is designed for environmentally demanding applications such as mobile radio base stations, roadside electronic cabinets, and other harsh environments. It's rated for operation over -40 to +85°C (full-load operation up to +70°C).
Mil supplies get to market on the double
Product News  
7/6/2005   Post a comment
XP Power's off-the-shelf MCC, a 400-watt DC/DC converter suited to quick customizing, meets MIL-STD-1275A/B input requirements, MIL-STD-461E EMI specifications and has MIL-STD-810F shock and vibration integrity. With up to four outputs, and an optional 200-watt conditioned 24-volt rail, the low-profile power supply meets the needs of military applications, avoiding the costs and delays associated with custom alternatives.
APC's thermal units pack a whirlwind
Product News  
7/6/2005   Post a comment
American Power Conversion's new array of rack-based upgrades for the power distribution network is designed to cost-effectively handle the challenges of high power densities and cooling in IT environments. Part of the company's InfraStruXure architecture, which integrates power, cooling, management, racks, and services for on-demand network-critical physical infrastructure (NCPI), the new arrivals include a Rack Side Air Distribution Unit, Rack Air Removal Unit, and customized Rack-mount Power D
2-watt DC/DCs comply with RoHS specs
Product News  
7/6/2005   Post a comment
Traco Electronic AG's newest generation of 2-watt DC/DC converters, their TEL2 and TES2N series, feature a lead (Pb)-free design to comply with the European RoHS directive. These modules are fully encapsulated and measure only 0.94-by-0.54-by-0.30 inch for both the thru-hole (TEL2) and surface-mount (TES2N) packages, and thus they are suited to space critical applications in the industrial and consumer electronics areas.
Kit configures custom supplies in a jiffy
Product News  
7/6/2005   Post a comment
Excelsys' new Xgen Series "powerKit" facilitates the development of custom AC/DC power supply solutions in minutes. Each development system contains everything the designer needs for custom configuration, including the company's powerPac front-end chassis and a selection of plug-in "powerMod" DC output modules. Output modules can be quickly installed or removed/exchanged. The configured supplies will meet all worldwide safety agency approvals.
How to keep your VoIP up and running
Design How-To  
7/5/2005   Post a comment
Voice over IP is making inroads in many companiies needs for telephony. However, you need to prepare the groundwork to ensure VoIP applications are always on. Here's what you should know to get ready.
IEEE defining communication channel for Broadband-Over-Powerline Systems
News & Analysis  
7/5/2005   Post a comment
The IEEE says it is working on developing P1901 Broadband-over-Powerline Systems communications channel to provide the essential step in commercializing BPL.
Utility supply stands in for field apps
Product News  
7/5/2005   Post a comment
Accordance Systems says its new POW WOW! portable power supply is the first 4-pin utility power supply for computer motherboards and peripherals and bench testing computer applications. Its compact dimensions (5.75-by-1.5-by-3 inches, LWH) and the low cost of this desktop-style supply makes it suited for low-power applications in the lab or at sites for devices using a Molex-type 4-pin power connector. POW WOW! delivers 42 watts at 5 and 12 volts from a 100-240 VAC input.
400-watt AC/DC is encapsulated for rough environments
Product News  
7/1/2005   Post a comment
Fully protected against the elements, the POL 400, a recent addition to Absopulse Electronics' POL series of conduction cooled AC/DC power supplies, delivers 400 watts at 12, 24, 36, or 48 volts from a 115/230 VAC or 250-370 VDC input. The weather-hardened unit measures 1.9-by-4.5-by-9.13 inches and weighs just 4.85 pounds.
Final program announced for second annual Digital Power Forum
News & Analysis  
7/1/2005   Post a comment
The digital power forum will take place September 12-14 in Boston. There is large menu to choose from for even the most discerning digital power appetites. Get more info here.


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