https://urgentcomm.com/wp-content/themes/ucm_child/assets/images/logo/footer-new-logo.png
  • Home
  • News
  • Multimedia
    • Back
    • Multimedia
    • Video
    • Podcasts
    • Galleries
    • IWCE’s Video Showcase
    • IWCE 2022 Winter Showcase
    • IWCE 2023 Pre-event Guide
  • Commentary
    • Back
    • Commentary
    • Urgent Matters
    • View From The Top
    • All Things IWCE
    • Legal Matters
  • Resources
    • Back
    • Resources
    • Webinars
    • White Papers
    • Reprints & Reuse
  • IWCE
    • Back
    • IWCE
    • Conference
    • Special Events
    • Exhibitor Listings
    • Premier Partners
    • Floor Plan
    • Exhibiting Information
    • Register for IWCE
  • About Us
    • Back
    • About Us
    • Contact Us
    • Advertise
    • Terms of Service
    • Privacy Statement
    • Cookie Policy
  • Related Sites
    • Back
    • American City & County
    • IWCE
    • Light Reading
    • IOT World Today
    • Mission Critical Technologies
    • TU-Auto
  • In the field
    • Back
    • In the field
    • Broadband Push-to-X
    • Internet of Things
    • Project 25
    • Public-Safety Broadband/FirstNet
    • Virtual/Augmented Reality
    • Land Mobile Radio
    • Long Term Evolution (LTE)
    • Applications
    • Drones/Robots
    • IoT/Smart X
    • Software
    • Subscriber Devices
    • Video
  • Call Center/Command
    • Back
    • Call Center/Command
    • Artificial Intelligence
    • NG911
    • Alerting Systems
    • Analytics
    • Dispatch/Call-taking
    • Incident Command/Situational Awareness
    • Tracking, Monitoring & Control
  • Network Tech
    • Back
    • Network Tech
    • Interoperability
    • LMR 100
    • LMR 200
    • Backhaul
    • Deployables
    • Power
    • Tower & Site
    • Wireless Networks
    • Coverage/Interference
    • Security
    • System Design
    • System Installation
    • System Operation
    • Test & Measurement
  • Operations
    • Back
    • Operations
    • Critical Infrastructure
    • Enterprise
    • Federal Government/Military
    • Public Safety
    • State & Local Government
    • Training
  • Regulations
    • Back
    • Regulations
    • Narrowbanding
    • T-Band
    • Rebanding
    • TV White Spaces
    • None
    • Funding
    • Policy
    • Regional Coordination
    • Standards
  • Organizations
    • Back
    • Organizations
    • AASHTO
    • APCO
    • DHS
    • DMR Association
    • ETA
    • EWA
    • FCC
    • IWCE
    • NASEMSO
    • NATE
    • NXDN Forum
    • NENA
    • NIST/PSCR
    • NPSTC
    • NTIA/FirstNet
    • P25 TIG
    • TETRA + CCA
    • UTC
Urgent Communications
  • NEWSLETTER
  • Home
  • News
  • Multimedia
    • Back
    • Video
    • Podcasts
    • Omdia Crit Comms Circle Podcast
    • Galleries
    • IWCE’s Video Showcase
    • IWCE 2023 Pre-event Guide
    • IWCE 2022 Winter Showcase
  • Commentary
    • Back
    • All Things IWCE
    • Urgent Matters
    • View From The Top
    • Legal Matters
  • Resources
    • Back
    • Webinars
    • White Papers
    • Reprints & Reuse
    • UC eZines
    • Sponsored content
  • IWCE
    • Back
    • Conference
    • Why Attend
    • Exhibitor Listing
    • Floor Plan
    • Exhibiting Information
    • Join the Event Mailing List
  • About Us
    • Back
    • About Us
    • Contact Us
    • Advertise
    • Cookie Policy
    • Terms of Service
    • Privacy Statement
  • Related Sites
    • Back
    • American City & County
    • IWCE
    • Light Reading
    • IOT World Today
    • TU-Auto
  • newsletter
  • In the field
    • Back
    • Internet of Things
    • Broadband Push-to-X
    • Project 25
    • Public-Safety Broadband/FirstNet
    • Virtual/Augmented Reality
    • Land Mobile Radio
    • Long Term Evolution (LTE)
    • Applications
    • Drones/Robots
    • IoT/Smart X
    • Software
    • Subscriber Devices
    • Video
  • Call Center/Command
    • Back
    • Artificial Intelligence
    • NG911
    • Alerting Systems
    • Analytics
    • Dispatch/Call-taking
    • Incident Command/Situational Awareness
    • Tracking, Monitoring & Control
  • Network Tech
    • Back
    • Cybersecurity
    • Interoperability
    • LMR 100
    • LMR 200
    • Backhaul
    • Deployables
    • Power
    • Tower & Site
    • Wireless Networks
    • Coverage/Interference
    • Security
    • System Design
    • System Installation
    • System Operation
    • Test & Measurement
  • Operations
    • Back
    • Critical Infrastructure
    • Enterprise
    • Federal Government/Military
    • Public Safety
    • State & Local Government
    • Training
  • Regulations
    • Back
    • Narrowbanding
    • T-Band
    • Rebanding
    • TV White Spaces
    • None
    • Funding
    • Policy
    • Regional Coordination
    • Standards
  • Organizations
    • Back
    • AASHTO
    • APCO
    • DHS
    • DMR Association
    • ETA
    • EWA
    • FCC
    • IWCE
    • NASEMSO
    • NATE
    • NXDN Forum
    • NENA
    • NIST/PSCR
    • NPSTC
    • NTIA/FirstNet
    • P25 TIG
    • TETRA + CCA
    • UTC
acc.com

content


Xantrex displays datacom inverter

Xantrex displays datacom inverter

Xantrex Technology Inc. unveiled the Xantrex Datacom Inverter (XDI) at IWCE in Las Vegas this year. The Xantrex XDI provides uninterruptible AC power
  • Written by Urgent Communications Administrator
  • 1st April 2003

Xantrex Technology Inc. unveiled the Xantrex Datacom Inverter (XDI) at IWCE in Las Vegas this year.

The Xantrex XDI provides uninterruptible AC power to equipment connected to 48-volt DC battery banks for telecom applications,

The unit is a compact, true sine-wave 2000 VA inverter module rated for continuous duty that conveniently fits into standard 19-inch equipment racks. It is easily scalable by adding parallel-connected modules, and can be configured in N+1 single or three-phase arrays for maximum reliability.

An Ethernet option is also available and comes with the Ethernet port, Internet Protocol stack, and a web browser Graphical User Interface.

The XDI is available now and can be purchased worldwide through authorized Xantrex representatives.

Features at a glance

  • Hot-swappable, parallelable
  • Ultra-high power density – 2.0 kVA in 1 U rack
  • Short circuit proof
  • Rack mounted back plane for DC input and AC output connectors
  • High performance noise filters on both input and output
  • Dimensions (H×W×D): 1.7 × 16.8 × 15.7″ (43.2 × 426.7 × 398.8 mm)
  • Weight: 22 lb (10 kg)
  • Three year warranty www.xantrex.com

Linear rolls out controller

Linear Technology Corp. introduces the LTC3731, a 3-phase synchronous step-down switching controller with integrated MOSFET drivers that is expandable to 12 phases.

Housed in a narrow 36-lead SSOP (5.3mm wide) and a leadless QFN (5mm × 5mm), the LTC3731 is a single-IC solution for delivering up to 60A for distributed power in systems requiring DC/DC conversion from 4.5V to 32V input source to 0.6V to 6V output. Moreover, the LTC3731 is a scalable DC/DC step-down controller that allows multiple LTC3731s to operate in six, nine and 12 phases capable of delivering load currents as high as 240A.

In addition to a simple solution, the LTC3731’s precision ±5 percent output current matching simplifies thermal management by spreading the heat evenly among its three output stages. Applications include servers, large memory banks and high power industrial systems.

Competing solutions, which incorporate MOSFET or inductor sensing, introduce as much as a ±35 percent error in power dissipation between the output stages resulting in unbalanced power handling and overheating of one or two stages.

To cope with this excess heat and to prevent thermal stress, designers are forced to over size the MOSFETs and inductors, which add to the cost and size of the solution.

The LTC3731 also incorporates a patented power-saving technique called Stage Sheddingä to optimize efficiency and improve battery life at light loads by eliminating the gate charging losses and switching losses of two of its output stages.

Applications vary from high-end notebook PCs to embedded systems and single-board computers for industrial, instrumentation, telecom and medical systems.

The LTC3731 drives external N-channel MOSFETs in three stages with 120° phase separation. The PolyPhase operation reduces input ripple current and improves transient response as well as minimizing the requirement for input and output capacitors.

The IC operates from 250kHz to 600kHz per phase to achieve optimal frequency for efficiency, ease of thermal design and use of small inductors and capacitors.

The LTC3731’s output voltage is adjustable from 0.6V to 6V with two external resistors. To protect the load and MOSFETs, the LTC3731 is equipped with short-circuit and overload protection as well as soft-start to protect the system from high inrush current.

The LTC3731 pricing starts at $4.45 each in 1,000-piece quantities.

Features at a glance

  • ±5 percent output current match optimizes thermal performance and size of inductors and MOSFETs
  • Three-phase current mode controller with onboard MOSFET drivers
  • 1 percent VREF Accuracy Over Temperature
  • Reduced input and output Capacitance
  • 250kHz to 600kHz per Phase, PLL, Fixed Frequency
  • 4V to 32V Input Voltage Range
  • 5.3mm Wide 36-Lead SSOP (Smallest 36-Lead SSOP) and 5mm × 5mm QFN www.linear.com

Magnetek introduces SLI series

Magnetek’s Power Electronics Group is introducing a new SLI Series Inverters for applications requiring continuous true Sine Wave power.

Due to technological solutions like the patent-pending “Compact Coi,” the SLI Series Inverters provide 1500 W of power in an ultra-thin 1U (1.71-inch) height and lightweight (12.34 lb) package along with extremely effective psophometric noise reduction through the use of a patent-pending control algorithm.

This 19-inch rack-mount inverter was designed for telecom, IT and industrial applications requiring constant AC power from DC input.

There are four models for different input (24 Vdc and 48 Vdc) and output (115 Vac and 230 Vac) voltage combinations.

Inverters include an integrated controller and optional Static Transfer Switch (STS) to provide true “plug and play” capability with no external subsystem required.

The inverters can be connected in parallel for N+1 redundancy and increased power.

HV improves diode response

The UX-FOB high-voltage power diode, available from HV Component Associates, which provided ultra-fast recovery from 50 nanoseconds, has been improved to produce a recovery capability of 40 nanoseconds.

These new diodes feature a rating of up to 8,000 V peak reverse voltagewith a 12 V maximum forward voltage — an improvement over the previous 14 V — and a 500 mA maximum average forward current.

These diodes are ideal for high-frequency application. Standard recovery diodes with ratings up to 12,000 V peak reverse voltage with a 11 V maximum forward voltage drop also are available.

www.hvca.com

AIR X offers wind power breakthrough

Southwest Windpower introduced what it calls the latest evolution in small wind turbines, the NEW AIR X. The AIR X combines what has made AIR the world’s number one selling small wind turbine with new technology previously found only in today’s state-of-the-art mega-watt-class wind turbines, the company says.

All of these features are primarily found within the body of the turbine. The new microprocessor based speed control results in increased performance, improved battery charging capability and the elimination of “flutter” noise from the machine. The controller allows for peak-power tracking of the wind by optimizing the alternators output on all points of the cubic curve and then efficiently delivers the energy to the battery. The turbine’s smart controller allows it to actually control blade rotation speed thus eliminating the buzzing noise commonly found with the AIR 403 and 303 in high winds. Furthermore, a new series of carbon-reinforced blades with a modified pitch angle further increases power production.

The new electronics are a considerable improvement over the previous AIR-403 controller that consisted of diode-rectification and a simple on/off voltage switch. To the customer this means:

Much Lower Noise: Previous AIR wind modules relied on their aero-elastic blade design for protection in high winds, causing loud flutter noise in winds above 35 mph (16 m/s). AIR X’s circuit monitors the wind speed and slows the blades as it reaches its rated output preventing it from ever going into flutter. The result is a much quieter wind turbine. In high winds, the AIR X will continue to produce power at a reduced level until the wind decreases, at which point maximum output will resume. Additionally, when the battery has reached its charged state, the AIR X will slow to an almost complete stop. Only when the battery has dropped below its voltage set point will it startup and resume charging.

Improved battery charging: Previous AIR designs required 300-400 amp hour battery banks so the trickle charge of the wind turbine could be adequately absorbed. The AIR X’s charge controller periodically stops charging, reads the battery voltage, compares it to the voltage setting and if the battery is charged, it completely shuts off all current going to the battery. This function is performed within a few milliseconds. The closer the battery is reaching its full state of charge, the more often the AIR X’s circuit repeats this action. This means any size battery from 25 to 25,000 a/h or higher can be charged safely.

Lower stress design: AIR X limits power on the input side of the electronics by controlling the torque from the blades. The power no longer has to be dissipated by the electronics resulting in lower stress on the circuit, bearings and other materials. Furthermore, stress on wind turbines occurs primarily in high winds. Under these conditions, the electronic stall design reduces the speed to 600 rpm, thereby significantly reducing turbine and tower loading.

Tags: content

Most Recent


  • Xantrex displays datacom inverter
    Newscan: Securing the Internet of Things is quite a challenge
    Also: EWA requests dismissal of 900 MHz applications; TIA names tech and policy priorities for 2014; IJIS Institute names Shumate Award winner; App makes bus waits more tolerable; a Blackberry comeback may be in the offing.
  • Xantrex displays datacom inverter
    Newscan: FCC certifies Carlson Wireless's white-space radio
    Also: Congress looks to revamp telecom law; Obama to place some restraints on surveillance; IEEE to study spectrum-occupancy sensing for white-spaces broadband; Major Swedish transport operator opts for Sepura TETRA radios; RFMD to partner on $70 million next-generation power grid project; NENA opens registratiuon for "911 Goes to Washington."
  • Xantrex displays datacom inverter
    Newscan: A look at the critical job of 911 dispatchers
    Also: NYC launches website for tracking 911 response times; Oregon implements 911 on pre-paid cell phones; LightSquared wants to keep spectrum assets; Harris receives multiple government orders; FCC extends rebanding financial reconciliation deadline; Zetron gear at core of communications system upgrade; Ritron debuts wireless access control system; EWA seeks policy review of VHF vehicular repeater system deployments.
  • Xantrex displays datacom inverter
    Newscan: Average peak data rates of 144 MB/s average realized in tests with CAT 4 LTE device
    Also: Verizon, T-Mobile to swap unused spectrum to improve coverage; Internet giants oppose surveillance--but only when the government does it; FCC Chairman says incentive auction will be delayed until middle of 2015; FCC chair announces staff appointments; Alcatel-Lucent names Tim Krause as chief marketing officer; New Jersey county deploys TriTech CAD system; Toronto airport deploys 26-position Zetron console system;

Leave a comment Cancel reply

To leave a comment login with your Urgent Comms account:

Log in with your Urgent Comms account

Or alternatively provide your name, email address below:

Your email address will not be published. Required fields are marked *

Related Content

  • RugGear: Contributing to the future of mission-critical broadband communication review and market vision
  • Photo gallery: 2014 Communications Marketing Conference (CMC) in Tucson
  • Xantrex displays datacom inverter
    Top 5 Stories - Week of Sept. 22
  • Xantrex displays datacom inverter
    RCA plans to expand this year's Technical Symposium

Commentary


Updated: How ‘sidelink’ peer-to-peer communications can enhance public-safety operations

  • 1
27th February 2023

NG911 needed to secure our communities and nation

24th February 2023

How 5G is making cities safer, smarter, and more efficient

26th January 2023
view all

Events


UC Ezines


IWCE 2019 Wrap Up

13th May 2019
view all

Twitter


UrgentComm

How AT&T won DFW Airport’s $10 million private 5G business dlvr.it/Spj4Pt

27th May 2023
UrgentComm

Russia’s war in Ukraine shows cyberattacks can be war crimes dlvr.it/Spj3c2

27th May 2023
UrgentComm

FCC grants 700 MHz Band 14 license renewal to FirstNet Authority dlvr.it/Spj2Ny

27th May 2023
UrgentComm

Broadband for Critical Communications Everywhere Providing Connectivity When Seconds Count dlvr.it/Sph602

26th May 2023
UrgentComm

How vehicle insurance and autonomy intertwined dlvr.it/SpglBb

26th May 2023
UrgentComm

World’s least-expensive self-driving vehicle revealed dlvr.it/Spgc88

26th May 2023
UrgentComm

Voice calling is finally making its way onto 5G dlvr.it/SpdtYW

26th May 2023
UrgentComm

With many cities facing a fiscal cliff as ARPA funding ends, debt ceiling debate continues on Capitol Hill dlvr.it/Spdsnq

26th May 2023

Newsletter

Sign up for UrgentComm’s newsletters to receive regular news and information updates about Communications and Technology.

Expert Commentary

Learn from experts about the latest technology in automation, machine-learning, big data and cybersecurity.

Business Media

Find the latest videos and media from the market leaders.

Media Kit and Advertising

Want to reach our digital and print audiences? Learn more here.

DISCOVER MORE FROM INFORMA TECH

  • American City & County
  • IWCE
  • Light Reading
  • IOT World Today
  • Mission Critical Technologies
  • TU-Auto

WORKING WITH US

  • About Us
  • Contact Us
  • Events
  • Careers

FOLLOW Urgent Comms ON SOCIAL

  • Privacy
  • CCPA: “Do Not Sell My Data”
  • Cookie Policy
  • Terms
Copyright © 2023 Informa PLC. Informa PLC is registered in England and Wales with company number 8860726 whose registered and Head office is 5 Howick Place, London, SW1P 1WG.