Content posted in February 2005
PoL converter packs big power into a small space
Articles 2/28/2005 Post a comment
An ultra-integrated DC-to-DC converter for Point of Load (POL) applications from Enpirion offers 20W of output power, 6A of output current, and 92% peak efficiency power density of up to 700 Watts-per-cubic-inch, or 80 Watts-per-square inch.
Power Management ICs enable digital control of output power
Articles 2/23/2005 Post a comment
Using Summit's programmable power management ICs, system designers can digitally program the entire multiple output power supply and associated power management functions with a few clicks of a mouse compared to the tedious iterative hardware design of conventional analog power solutions.
Mysticom retimer chips achieve new levels of integration for CX4 and LX4 apps
Articles 2/22/2005 Post a comment
Mountain View, Calif. Mysticom Semiconductor has introduced a pair of new retimer chips for Xenpak, X2 and XFP modules that incorporates its third generation 10 Gigabit Ethernet (GbE) transceiver technology. The new chips the MY3128 designed for 10GBase-CX4 over Infiniband cable and the MY3129 designed for10GBase-LX4 over multimode fiber tout the highest levels of integration and industry's smallest footprint. For systems designers, this means fewer components, lower costs a
Dual chipset provides total 1FXS and 1FXO solution
Articles 2/21/2005 Post a comment
Today, Legerity Inc. is trumpeting a 1.5-channel FXS/FXO solution -- one complete channel of FXS and the FXO codec --in just one single device. Previously, this level of integration into a single device for voice and data networks was not available, according to the fabless analog/mixed-signal semiconductor maker.
ADI's video amps conserve battery power
Articles 2/21/2005 Post a comment
Product Review: Today Analog Devices, Inc. introduced a pair of high-performance video amplifiers that offer low operating power and what it claims is the industry's lowest standby power -- enabling longer battery life in portable multimedia consumer applications, such as MP3 players and digital video cameras.
Class D amps reduce EMI, improve sound
Articles 2/15/2005 Post a comment
Once dismissed as providing only average-quality audio, Class D switching
amplifiers appear now to be turning the tide and gaining acceptance in consumer
applications. Companies like Analog Devices, Microsemi, National Semiconductor
and Texas Instruments recently announced a wave of analog-input Class D
3-in-1 controller delivers precision voltage regulation
Articles 2/8/2005 Post a comment
The Intersil pulse width modulator provides two buck regulator outputs and a linear controller output for powering double data rate memory supplies for servers, motherboards, I/Os, FPGAs, and embedded processors, as well as, graphic cards and other system electronics.
Simple battery circuit extends Power over Ethernet (PoE)
Articles 2/3/2005 Post a comment
PoE power comes in the form of "48V at 350mA. If the PoE current is allowed to exceed 400mA, the standard calls for the PSE to break the circuit. This is a problem for devices that occasionally need a little more juice than PoE has to offer. Another problem is that "48V does not easily convert to commonly used positive voltage supply rails. Guess what: A Linear Technology engineer shows you how to do this from a battery.
LTC raises sampling rate of 12-bit A/D converter
Articles 2/2/2005 Post a comment
Today Linear Technology Corp. introduced the LTC2220-1, a 12-bit, 185 megasamples/sec (Msamples/s) analog-to-digital converter (A/D converter), that combines solid AC performance with low power for power amplifier (PA) linearization.
There’s a further cool thing you can do with a spreadsheet that most SPICEs can’t. That’s to use the spreadsheet ‘solver’ functionality to adjust component values in the search for a better-fitting circuit – or even to find a set of component values for a circuit you can’t otherwise design.
Infineon MOSFETs have been embedded into PC boards by Schweizer Electronic AG
You now need to adjust component values to achieve some system goal, such as predefined frequency response or time behaviour, and there’s no closed method for working out those values.
As a member of the electronics design community, I am angry and disappointed with the recent deaths of 346 people due to the Boeing MAX 8 design
The theoretical advantages of GaN-based power transistors are now being realized in mainstream system designs. Power supplies for data centers and telecom switching racks are two application areas where GaN transistors show significant improvement in comparison to systems using best-in-class Silicon-based Superjunction devices.