Active-clamp PWM controller peaks ZVS designs Product News 12/29/2003 Post a comment National Semiconductor's LM5025 is an active-clamp PWM controller for high-frequency forward converter topologies designed to boost the efficiency and power density of conventional forward regulators. Using the company's analog bipolar-CMOS-DMOS technology to cut external component count, the LM5025 integrates a 3-amp driver, 100-volt start-up bias regulator and a user programmable 1 MHz oscillator, and the chip exhibits a total propagation delay of less than 100 ns, thus suiting it to a variety
DC/DC driver IC addresses pre-biased loads Product News 12/29/2003 Post a comment Intersil's new ISL6608, for driving two n-channel power MOSFETs in synchronous-buck, multiphase power converters, features a diode-emulation mode that eases power-up into a pre-biased load and maximizes performance under light-load conditions.
Eighth-bricks tout high thermal performance Product News 12/29/2003 Post a comment Ault's HDE1-75 single-output eighth-bricks, suited to high-temperature ambient environments, deliver up to 25 amps at 1.8, 2.5, or 3.3 volts from a 36-75 VDC input. Using the company's Tronix-Flex technology, these 75-watt, 350-kHz DC/DC converters feature an FET array design that stacks MOSFETs in parallel on multi-level printed circuit boards and an integrated heat sink to achieve high power density at elevated temperatures (100 watts/in3 at 85°C) despite minimal air flow.
International scientific research net launches News & Analysis 12/28/2003 Post a comment The U.S. National Science Foundation, a consortium of Russian ministries and science organizations, and the Chinese Academy of Sciences announced the start of operations for a dedicated global computer network ring for joint scientific and educational projects.
Sony robot runs and jumps News & Analysis 12/28/2003 Post a comment Sony Corp. has developed an integrated walking, running, and jumping motion control technology that enables its humanoid robot "Qrio" to smoothly combine conventional walking movement with new running and jumping motions.
Une jeune entreprise grecque de CAO propose un outil de conception de solutions RF News & Analysis 12/28/2003 Post a comment Helic SA a lancé un outil de modélisation d'inductance qui, selon la société, réduira considérablement les coûts de développement pour les modèles d'émetteurs-récepteurs sans fil. VeloceRF prend en charge l'extraction pleine puce d'inductance et d'inductance mutuelle et synthétise automatiquement les topologies d'inducteur en spirale, indique la société. Son siège est basé à Athènes en Grèce.
Global scientific research net starts operation News & Analysis 12/24/2003 Post a comment The U.S. National Science Foundation, a consortium of Russian ministries and science organizations and the Chinese Academy of Sciences this week announced the start of operations for a dedicated global computer network ring for joint scientific and educational projects.
Analyst report predicts modest EDA recovery News & Analysis 12/24/2003 Post a comment Although the latest market statistics show a slight year-to-year decline in EDA revenues, a recovery may indeed be underway, according to a new report issued by Jay Vleeschhouwer, analyst at Merrill Lynch. The report predicts that 2003 revenues will be slightly up from 2002, with a mid-single digit rise in bookings and revenues for 2004.
VMIC's CompactPCI SBC packs Intel's latest Pentium M micro Product News 12/24/2003 Post a comment GE Fanuc Automation Americas, also known to board users as VMIC, previews a new hot-swappable single-slot CompactPCI board that features Intel's latest Pentium M processor technology. The new board's processor clocks at up to 1.6-GHz, yet performs many applications comparable to a 2.4-GHz Pentium---but it dissipates half the power. Although only a preliminary datasheet is available, eeProductCenter Senior Tech Editor Alex Mendelsohn enumerates some if its salient features.
As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.
January 2016 Cartoon Caption ContestBob's punishment for missing his deadline was to be tied to his chair tantalizingly close to a disconnected cable, with one hand superglued to his desk and another to his chin, while the pages from his wall calendar were slowly torn away.122 comments