Fairchild schärft Profil als Leistungselektroniker Product News 9/30/2004 Post a comment Der US-Halbleiterhersteller Fairchild Semiconductor sieht sich in seiner Fokussierung auf die Leistungselektronik bestätigt: Der Bereich wächst wesentlich schneller als der Chip-Gesamtmarkt. Jetzt will Fairchild in Europa seinen Marktanteil ausweiten. Mit Übernahmen ist zu rechnen.
Eighth-brick maximizes IBA performance Product News 9/29/2004 Post a comment Power-One's SQT48T20120 bus converter delivers up to 240 watts at 96 percent efficiency, providing among the highest power and power-density (300 W/in3) offered by an eighth-brick. The converter, working from a nominal, regulated 48-VDC input, provides a 12-volt output (4:1 fixed-ratio). Designed for high performance at elevated temperatures in an intermediate bus architecture IBA), the converter delivers up to 210 watts at 70°C for 200 lfm cooling. These modules can be paralleled
Power system extends IT backup from hours to days Product News 9/28/2004 Post a comment American Power Conversion's newest contribution to power system integration, InfraStruXure with power generation, combines a diesel source, integrated automatic transfer switch (ATS) and distribution panel to provide extended on-site backup power for data centers. The new system, which integrates power, cooling, management, and services for on-demand network-critical physical infrastructure (NCPI), provides increased availability for IT environments ranging from five racks to 100 racks (small to
24-volt bricks raise performance bar Product News 9/25/2004 Post a comment Four new eighth- and quarter-bricks with 24-volt inputs for wireless, telecom, and industrial applications, additions to Artesyn's Typhoon family of board mounted DC/DC converters, boast new benchmarks for efficiency and power-density. The company's 1.8-volt at 30-amp quarter brick, for example, only 0.3 inches high, is more than 7 percent more efficient than its nearest rival, according to the company.
C&D Technologies acquires Celestica Power Systems News & Analysis 9/24/2004 Post a comment C&D Technologies (Blue Bell, Pa.) has signed a definitive agreement to acquire the Power Systems division of electronics manufacturing services company Celestica Inc. (Toronto), in an all-cash transaction whose terms were not disclosed.
Power-One downgrades third quarter guidance News & Analysis 9/22/2004 Post a comment Power-One Inc. (Camarillo, Calif.) announced Wednesday (September 22) that net sales for the third fiscal quarter ending September 30 will be $66 million with a corresponding loss per share of 5 to 6 cents, compared to previous guidance for sales of $72 to $74 million with breakeven per-share results.
Ultracap backup bridges kilowatt power outages Product News 9/21/2004 Post a comment Maxwell Technologies' Powercache PC-48 backup power modules provide a plug-and-play, maintenance-free alternative to batteries for short-term "bridge" power for uninterruptible power supplies (UPSes) in high-reliability telecom, industrial and medical systems. These two new ultracapacitor-based, 48-volt rack modules, rated at 1.6- and 2.3 kW-minutes, are designed to comply with Network Equipment Building System (NEBS) standards. "Fuel cells, diesel generators and microturbines all take from a fe
Tyco to distribute Plug Power's fuel cell system News & Analysis 9/21/2004 Post a comment Plug Power Inc. (Latham, N.Y.) has signed an agreement with Tyco Electronics Power Systems Inc. (Mesquite, Tx.) under which Tyco will market and sell Plug Power's GenCore 5T fuel cell systems for telecommunication backup applications throughout the United States and Canada.
Artesyn rejects buyout offer from Bel Fuse Product News 9/21/2004 Post a comment Artesyn Technologies Inc. (Boca Raton, Fla.) said Tuesday (September 21) that it has rejected an unsolicited buyout offer from Bel Fuse Inc. (Jersey City, N.J.) calling terms of the proposal inadequate.
Power-sensing circuit breaker protects portable computers Design How-To 9/21/2004 Post a comment Most circuit breakers sense current. Fuses, for example, protect a circuit by blocking the current when it exceeds a limit. Current-sensing circuit breakers work well for constant dc or RMS supply voltages, but for a variable supply voltage such as the battery in a notebook computer, power sensing is safer.
NetPower introduces POL converters Product News 9/20/2004 Post a comment NetPower Technologies' NAT and NAS are the company's first (non-isolated) point-of-load (POL) converter lines. Working from a 2.4-5.5 or 8-18 volt input, the NAT (SIP package, 2-by-0.24-by-0.5 inches) and NAS (SMT, 1.3-by-0.53-by-0.25 inches), each having 20 models, can deliver from 0.8 to 8 volts at either 12 or 20 amps (maximum output in excess of 160 watts) at an efficiency of up to 95 percent.
Cost-cutting 250-W medical supply fits in 1U Product News 9/19/2004 Post a comment Taiyo Yuden's PAM250, the second model in the company's PAM Series of switch-mode power supplies, delivers 250 watts in a 1U-high package for medical OEM applications. As with the company's first model, a 150-watt unit, it features passive power-factor-correction for higher reliability and lower cost without compromising basic functionality.
Power plant is safe from the elements Product News 9/18/2004 1 comment Transistor Devices' (TDI) new environmentally sealed DC power plant provides outside plant power, DC distribution, battery back-up and remote monitoring and alarm capabilities in a front access, weather-resistant enclosure for remote site telecommunications applications. The systems deliver up to 1,000 watts of 24 or 48 VDC power with up 4 hours of battery backup if the power line fails.
"Factorized power" module delivers 100 amps Product News 9/17/2004 Post a comment Vicor Corp.'s V048K015T100 is the first 100-amp product in the company's V • I Chip line of voltage transformation modules (VTM) designed for "factorized power" architectures. At 400 amps per cubic inch, it also has the highest current-density.
PDUs for Pulsar UPSes extend flexibility Product News 9/17/2004 Post a comment MGE UPS Systems' new Pulsar power distribution units (PDUs), for the company's line of uninterruptible power supplies (UPSes) carrying the same name, provide a full complement of mounting options, numerous input plug/output receptacle choices and configurations that include a convenient maintenance bypass switch. In addition, the new PDUs are fully compatible with any UPS sporting an appropriate output receptacle.
Telecom supply demonstrates high reliability Product News 9/17/2004 Post a comment Power-One's MPU200-1048 is an AC/DC supply providing 200 watts at 48 volts for telecom, datacom, medical, and industrial applications. It boasts an MTBF of over 1 million hours based on actual data compiled from an installed base of more than 500,000 similar MPU-series products.
3-to-3 phase converter delivers 6 kVA for aviation Product News 9/17/2004 Post a comment Absopulse Electronics' FTT 6000-C, an addition to the company's line of three-phase to three-phase frequency converters, is a 6 kVA unit designed to provide conversion between a 60 Hz utility line and 400 Hz aviation ground support equipment. It converts
a three-phase, 208 Vrms (line-to-line) input to a 120 Vrms (line-to-neutral) output. The output phases are connected in a 'Y' configuration with the neutral grounded.
Regulator combo kills ripple for sensitive, low-voltage applications News & Analysis 9/15/2004 Post a comment A very high bandwidth linear regulator can be effectively used to actively filter the high frequency ripple of a switching regulator, providing low ripple and fast transient response with smaller filter capacitors. For September's Planet Analog magazine, a Micrel apps engineer explains how an LDO with 15-mV dropout be used to post-regulate a buck step-down regulator.
RFID tags ubiquitous by 2010, MIT prof predicts News & Analysis 9/15/2004 Post a comment Kevin Ashton, vice president of ThingMagic Inc. and cofounder of the MIT Auto-ID Center, told a keynote audience at the Embedded Security Seminar conference in Boston that global RF sensor networks will be ubiquitous to the point of invisibility within a few years.
Exide Technologies restructures management Product News 9/14/2004 Post a comment Exide Technologies (Lawrenceville, N.J.) has eliminated several positions from its senior management team as the supplier of lead-acid batteries and uninterruptible power systems consolidates operations along regional lines.
Eighth-brick designs bring fixed-ratio benefits Product News 9/14/2004 Post a comment Celestica's newly announced EUS family, in the company's IBC series, is billed as the first to offer a full selection of 4:1, 5:1 and 6:1 fixed voltage conversion ratios in an eighth-brick package. With a wide input voltage range of 36-55 volts, the EUS models, with a capability of up to 240 watts for intermediate-bus applications, boast leading metrics in such categories as thermal derating performance for output current, and efficiencies of up to 96.1 per cent.
120-W medical supply delivers desktop power cure Product News 9/9/2004 Post a comment Holliston, Mass. - XPiQ says its PCM120 is the world's smallest 120-watt AC/DC external power supply for medical applications. Using a zero-voltage switching topology, the desktop-style, power-factor-corrected supply, which provides 12, 15, 18, 24, or 48 VDC from a universal AC input, achieves 85 percent efficiency. It measures 3.74-by-7.08-by-1.85 inches and weighs less than 2 pounds.
DC/DCs boost performance for emerging DPAs News & Analysis 9/9/2004 Post a comment Datel's new LSN-16A Series DC/DC converters are third-generation point-of-load (POL) modules in a single-in-line (SIP) package with wider input range, extended output current, and lower effective cost to meet the needs of emerging distributed power architectures (DPAs). Working from a 3- to 5.5-volt (W3 model) or 10-14 volt (D12 model) input, they deliver 0.75- to 5 volts (user programmable in the T version) at up to 16 amps to meet virtually any low-voltage core or I/O logic requirement. These
DC/DCs boost performance for emerging DPAs Product News 9/8/2004 Post a comment Datel's new LSN-16A Series DC/DC converters are third-generation point-of-load (POL) modules in a single-in-line (SIP) package with wider input range, extended output current, and lower effective cost to meet the needs of emerging distributed power architectures (DPAs). Working from a 3- to 5.5-volt (W3 model) or 10-14 volt (D12 model) input, they deliver 0.75- to 5 volts (user programmable in the T version) at up to 16 amps to meet virtually any low-voltage core or I/O logic requirement. These
Dual-voltage rectifiers fill cellular legacy, 3G/GSM needs Product News 9/5/2004 Post a comment Valere Power has added a new family of high-efficiency DC power rectifiers with both 24- and 48-volt output capability for its Modular Power System, thus giving wireless carriers a flexible and space-efficient solution to the problem of differing voltage needs of legacy cellular equipment and next-generation voice and data/telecom gear. The 2U system rectifiers, which are half the size of systems using traditional technology and cut heat dissipation by about one-third, is scaleable from 800 to 2
Agilent powers up newest DC supplies with multiple I/Os Product News 9/1/2004 Post a comment Hot on the heels of Agilent Technologies's recent announcement of new modules and paralleling enhancements for its N6700 MPS power sources, the company is rolling out its newest N5700 Series. Billed as system DC power supplies, they offer what Agilent claims is the industry's highest power densities, with one unit in the mix providing up to 1.5-kW in a space-saving 1U-high package.
Blog Doing Math in FPGAs Tom Burke 24 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 ...