Electronic Design
  • Resources
  • Directory
  • Webinars
  • CAD Models
  • Video
  • Blogs
  • More Publications
  • Advertise
    • Search
  • Top Stories
  • Tech Topics
  • Analog
  • Power
  • Embedded
  • Test
  • AI / ML
  • Automotive
  • Data Sheets
  • Topics
    - TechXchange Topics --- Markets --AutomotiveAutomation-- Technologies --AnalogPowerTest & MeasurementEmbedded
    Resources
    Electronic Design ResourcesTop Stories of the WeekNew ProductsKit Close-UpElectronic Design LibrarySearch Data SheetsCompany DirectoryBlogsContribute
    Members
    ContentBenefitsSubscribeDigital editions
    Advertise
    https://www.facebook.com/ElectronicDesign
    https://www.linkedin.com/groups/4210549/
    https://twitter.com/ElectronicDesgn
    https://www.youtube.com/channel/UCXKEiQ9dob20rIqTA7ONfJg
    1. Markets
    2. Energy

    Wireless Transmitter Gets Its Power From The Loop

    May 8, 2007
    The Loop-Powered Transmitter (LPT) from Otek Corp. extracts power from the loop’s current and uses it to charge a supercapacitor that powers the RF transmitter.
    Staff

    The Loop-Powered Transmitter (LPT) joins the more than 20 loop-powered devices—from digital panel meters to controllers—made by Otek Corp. The LPT uses a patent-pending technique, along with nanotechnology and an ASIC, to extract the loop’s current (4 to 20 mA or 10 to 50 mA) to charge a supercapacitor that powers the RF transmitter. The technique does not affect the accuracy of the loop. A microcontroller monitors the input current loop and the capacitor’s energy charge to determine the wireless transmitter’s rate of transmission. The rate is slower at 4 mA and faster at 20 mA. The receiver, which is externally powered (12 to 28 V dc), converts the RF from binary to a 4- to 20-mA (or 1- to 5-V) output to reproduce the loop’s value.

    The LPT includes an internal lithium battery used for emergency transmissions or when the loop current is low for long periods of time. The battery is externally enabled prior to operation (and disabled in transit). LEDs warn the user of low- or no-loop conditions. The LPT can be DIN-rail or Velcro (in-line) mounted. At 25°C and with a 12-mA input, the transmitter’s accuracy is ±5% of reading. The analog-to digital converter’s resolution is 10 bits. The input can vary from 3.6 to 36 mA, and the transmission rate is up to 10/s at 20 mA. Frequencies available include 315, 433, and 915 MHz (and 868 MHz for outside the U.S. only).

    AVAILABILITY
    The LPT is available from stock to four weeks. PRICING
    The cost is $500 per set in quantities of one to nine. FOR MORE INFORMATION
    Visit www.otekcorp.com.

    Continue Reading

    Powering the Wireless Warehouse

    How Edge Processing Enables Next-Gen mmWave Scanners

    Sponsored Recommendations

    Designing automotive-grade camera-based mirror systems

    Dec. 2, 2023

    Design security cameras and other low-power smart cameras with AI vision processors

    Dec. 2, 2023

    Automotive 1 TOPS vision SoC with RGB-IR ISP for 1-2 cameras, driver monitoring, dashcams

    Dec. 2, 2023

    AM62A starter kit for edge AI, vision, analytics and general purpose processors

    Dec. 2, 2023

    Comments

    To join the conversation, and become an exclusive member of Electronic Design, create an account today!

    I already have an account

    New

    Super-Slim Wireless, Self-Powered “Sticker” Measures Contact Force

    Commercial-Ready Route in Texas for Driverless Trucks Planned for Late 2024

    Running Background Checks on Today’s Celebrity Scientists

    Most Read

    Design Resources Boost Embedded Development Projects

    TrustInSoft Helps Root Out Bugs to Deliver Reliable Code

    MEMS Mirrors: The Next Big Wave in MEMS Technology


    Sponsored

    How buck regulators with integrated capacitors help lower EMI and save board space

    Time-Saving and Cost-Effective Innovations for EMI Reduction in Power Supplies

    IQ: What it is, what it isn't, and how to use it

    Electronic Design
    https://www.facebook.com/ElectronicDesign
    https://www.linkedin.com/groups/4210549/
    https://twitter.com/ElectronicDesgn
    https://www.youtube.com/channel/UCXKEiQ9dob20rIqTA7ONfJg
    • About Us
    • Contact Us
    • Advertise
    • Do Not Sell or Share
    • Privacy & Cookie Policy
    • Terms of Service
    © 2023 Endeavor Business Media, LLC. All rights reserved.
    Endeavor Business Media Logo