U.S. large and advanced batteries to reach $4.5 billion in 2008 News & Analysis 11/7/2004 Post a comment According to a soon-to-be-released updated report from Business Communications Company, Inc. (www.bccresearch.com) RGB-197N Large and Advanced Battery Technology and Markets, large and advanced batteries represented a $2.9 billion U.S. market in 2003. Growing at an AAGR (average annual growth rate) of 9.1%, this market is expected to reach $4.5 billion in 2008 making it one of the largest and fastest growing technology-driven electrical/electronic sectors.
Camera Phones: More Pictures, More Fun, More Power Survey 11/7/2004 Post a comment Power is the nemesis of today's mobile devices and a key bottleneck to realizing convergence in the handset. After all, what is the point of being able to surf the web, respond to your email, and take pictures on your cell phone if the battery is always dead?
The Secrets of Fixed Ratio Bricks Design How-To 11/5/2004 Post a comment The next time when specifying an isolated DC/DC converter, stop for a moment and consider a Fixed Ratio converter. If the input voltage range and output voltage range fit your application, you could benefit from higher efficiency, higher power density, and lower cost.
Simple Current Monitor Handles Automotive Rigors Product News 11/5/2004 Post a comment The application simplicity of the ZXCT1008, a three terminal current monitor from Zetex Semiconductors Inc., enables it to tolerate high-voltage transients, overvoltage and reverse polarity events for automotive load measurement and control.
DPA developments: A reason for change in power conversion Design How-To 11/5/2004 Post a comment Distributed Power Architectures are in a state of flux. Fortunately there are a number of powerful tools, architectural and topological for increasing efficiency and power density. Find out what the major developments are and the compelling rationale for change in the power conversion technology.
Tri-mode charge pumps optimize LED driver solutions Product News 11/5/2004 Post a comment Advanced Analogic Technologies' five new tri-mode, high-efficiency charge pumps for white and color LEDs, an extension to the company's broad line, are designed to offer a complete lighting solution for backlighting, main display, and camera flash solutions. Four of the devices, the company's AAT3151/2/3/6 for backlighting, are the company's first family of current-sink LED drivers. The fifth device, the AAT3129, is targeted at RGB LED and camera flash applications.
Power Factor Correction Options for Sub-250W Power Supplies Design How-To 11/4/2004 Post a comment New EN61001-3-2 standards regulating harmonic distortion and the growing popularity of Distributed Power Architectures (DPAs) are changing the way OEM power supply manufacturers view power factor correction. Existing and emerging technology options can be explored and implemented to improve the reliability, performance, and cost-effectiveness of present and future power supply designs.
Focus On: High-Speed Op Amps Vendors Target GHz Speeds for Video Product News 11/4/2004 Post a comment With an eye on next generation applications, amplifier suppliers are pushing the performance barriers with their newest round of high-speed operational amplifiers. These new devices offer system designers such features as 1-GHz speed, three amps in a package and pin-outs optimized for
Distributed Power and Intermediate Bus Architecture Design How-To 11/4/2004 Post a comment The requirements placed on distributed power architectures continue to expand beyond the initial goal of dealing with power distribution problems associated with high load currents required by low voltage load devices. Where distributed power is being considered, today's system engineers must evaluate which of the available options is most appropriate.
Dynamic Power Variations in DataCenters and Network Rooms Design How-To 11/4/2004 Post a comment The power requirement required by data centers and network rooms varies on a minute by minute basis depending on the computational load. This variation gives rise to new problems relating to availability and management, including overheating and loss of redundancy, and tripped circuit breakers.
Digital Power: Forward into The Past Blog 11/3/2004 Post a comment In principle, digital power management increases the responsiveness of power supplies by putting them under the eye of digital controller. In practice, says Fairchild's power industry observer and commentator, Reno Rossetti, much of what is touted as "modern digital" could be a new envelop for "same ole, same ole" But nobody should "poo poo" the ability to put cell phone LDOs and switcher son the same chip, he says, nor fast-response point-of-load converters.
SIA says chip sales will flatten after record 2004 News & Analysis 11/3/2004 Post a comment The Semiconductor Industry Association (SIA) released its annual forecast for 2004-2007, predicting record sales of $213.8 billion in 2004 followed by essentially flat sales in 2005, as the excess inventory problems many chip companies are now reporting make their impact felt.
Cell phone power management needs specialized ICs Design How-To 11/3/2004 Post a comment This article, initially targeted for the forthcoming "Advanced Power Conservation Techniques" issue of the Planet Analog magazine folio, reviews some of the power management issues manufacturers are dealing with in the design of feature-laden cell phones and other multi-media handhelds. This can serve in fact as a companion piece to another Texas Instruments' contribution — "How IC manufacturers resp
Digital Power Control Highlights Design How-To 11/3/2004 Post a comment The demand for more functionality from the controller and the continuing advance of digital technology has pushed many companies to look at digital multiphase control. The proposed solutions vary from the use of digital processors (DSP), microprocessors, and microcontrollers, to the latest software-programmable mixed-signal ICs.
Adding extra hysteresis to comparators News & Analysis 11/3/2004 Post a comment Analog comparators are always in the shadow of their more popular cousin, the ubiquitous op amp. Designers can draw upon a wealth of application notes for op amps, but for comparators the ANs are few. One consequence of that scarcity is that customers call the Maxim applications line for help when adding comparator hysteresis. This article explains how to add hysteresis to some common comparator circuits.
Simple adjustment to the output power of laser diodes Design How-To 11/2/2004 Post a comment Laser diodes are enjoying ever greater popularity in sensor engineering and measurement technology thanks to their high optical output power. One of the advantages of this is that a wide optical range with a high signal-to-noise ratio is possible. Lower prices and ready availability have also greatly boosted their attraction as light sources in medical technology.
Power supply specifications: what's lurking behind the datasheet? Design How-To 11/2/2004 Post a comment There's nothing quite like a power supply datasheet for providing specifications that are open to interpretation, vague or downright misleading. This article looks at a typical datasheet for a mid-power AC/DC switcher and, from input to output, looks at how specifications are quoted and what questions need to be asked to make their meaning unambiguous.
Low-Power is king of the portable world Power DesignLine Blog 11/2/2004 Post a comment Where mobile devices are concerned, low power is king of the world. Here is a group of targeted articles for your low-power designs. The authors look at schemes for handhelds and more. They examine power consumption issues from four perspectives: software, processors, boards and end devices.
Step-Down DC/DC Converter - quiescent current of only 100A Product News 11/2/2004 Post a comment Linear Technology announced the LT1977, a high voltage, 500kHz step-down switching regulator with Burst Mode® operation to keep quiescent current under 100µA. The circuit operates within a VIN range of 3.3V to 60V, making it compatible with load dump or cold-crank conditions in automotive applications.
Alliance adds configurable supervisor ICs Product News 11/2/2004 Post a comment Alliance Semiconductor's ASM1232 and ASM1832 power-supply supervisor IC families are configurable devices for general monitoring of power-up, power-down and brownout conditions in microprocessor and microcontroller-based systems. "We are excited to include user-configurable functionality to our growing base of CPU supervisor products," said Nelson Arata, product marketing manager for the Analog and Mixed Signal business unit. "Configurability gives the system designer greater flexibility and add
Maxim reports sales gain but bookings slow News & Analysis 11/1/2004 Post a comment Maxim Integrated Products Inc. (Sunnyvale, Calif.) reported net earnings of $144.5 million on sales of $435.1 million in its first fiscal 2005 quarter ended Sept. 25, compared to earnings of $87.4 million on sales of $310.2 million in the year-ago fiscal quarter.
How to Design a "Power Good" Signal that is Drain Referenced Design How-To 11/1/2004 Post a comment Hot swap controllers used in 48 V telecommunication applications generally offer a Power Good signal to inhibit the operation of the load circuit until the initial inrush current into the input filter capacitor has reduced to zero. This design idea describes a simple and inexpensive method of generating a Power Good signal that is drain referenced.
PoE interface with regulator offers smallest solution Product News 11/1/2004 Post a comment Linear Technology's LTC4267, an IEEE 802.3af Power over Ethernet (PoE) controller, features an integrated switching regulator to greatly simplify powered device (PD) design. Requiring only a pass FET, transformer and a few small components, the LTC4267 is designed to provide the smallest PoE solution available for digital voice-over-IP phones, network wireless access points, security cameras, and any small Ethernet-connected device that requires less than 13 watts.
High Speed Audio A/D Converters Tout Clarity Product News 11/1/2004 Post a comment Using advanced mixed-signal techniques in a multi bit sigma-delta design, and a proprietary cascade topology, Wolfson Microelectronics plc's WM8780/1/5/6 high-speed, audio analog-to-digital converters (A/D converters), maximize signal-to-noise ratio (SNR).
Improving system harmonic control with active power filtering Design How-To 11/1/2004 Post a comment Unlike traditional power factor correction techniques, active power filtering (APF) supplies only the harmonic and reactive power required to cancel the reactive currents generated by nonlinear loads. In this case, only a small portion of the energy is processed, resulting in greater overall energy efficiency and increased power processing capability.
BTX Computer Motherboard Power Management Solutions Design How-To 11/1/2004 Post a comment The Balanced Technology Extended (BTX) interface specification was developed by Intel to provide standard interfaces and form factors in an effort to address the thermal and acoustical issues associated with the ever-increasing power dissipation of desktop microprocessors