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  • An uninterruptible power supply (UPS), also known as a continuous power supply (CPS) or a battery backup is a device which maintains a continuous supply of electric power to connected equipment by supplying power from a separate source when utility power is not available.
  • There are three distinct types of UPS: off-line, line-interactive and double conversion (also called on-line).
  • A variety of design approaches are used to implement UPS systems, each with distinct performance
    characteristics. The most common design approaches are as follows:
    • Standby
    • Line Interactive
    • Standby-Ferro
    • Double Conversion On-Line
    • Delta Conversion On-Line
  • A UPS is typically used to protect computers and other digitally controlled equipment.


  • Static UPSs are a major contender for industrial installations, and the advantages and benefits they offer, have seen consultants shifting their design criteria from Rotary to Static technology.
  • Static UPS physical sizes and inverters have changed dramatically in recent years with thyristor technology being replaced with IGBT technology.
  • UPS technology include not only increased use of web-enabled systems, but also the ability of manufacturers to build UPS with a smaller footprint.
  • Flywheel technology enabling smaller UPS footprints, static UPS systems electronics have been getting smaller due to higher power transistors. Power Innovations' UPQ and NetAgent technology will provide an uninterrupted, quality power supply, which will help ensure smooth operations of the technology during the course of the Games.


  • The UPS for the Cisco CVA120 Series Cable Voice Adapter provides a backup power supply for the cable voice adapter and the telephones attached to it.
  • DC UPS technology developed in the telecommunications industry provides a highly reliable, cost effective alternative to traditional AC UPS systems, especially when applied in a non-traditional, distributed manner.
    Distributed DC UPS technology can also be effectively deployed at the cabinet level.
  • The main application of the IGBT is for use as a switching component in inverter circuits which are used in both power supply and motor drive applications.
  • The application of Synchrotron Radiation Source (SRS) is the UK’s only dedicated source of high energy synchrotron radiation.
  • The UPS also has a facility which loads the AC source gradually over a period of 10 seconds after the input is applied.


  • The APC Back-UPS ES 750 (BE750G), which carries an estimated retail price of $99.99, is currently available in select retail locations and will be introduced in North America.
  • The flywheel technology is fairly new to the SEA market, and persistent efforts of creating awareness. he market is attractive, but highly competitive, with the participation of local and multinational competitors.
  • The virtual collapse of the telecommunications market had a major impact on the power supplies industry.
    Growth in the UPS market is tied to the performance of telecommunication systems comprising of extensive networked infrastructure of computers.
  • The global consumption of electrical power is projected to leap to 20 trillion kilowatt-hours.
  • Extensive growth in the personal computers market, across consumer and SOHO (Small Office Home Office) segments, has also contributed to the rising demand for UPS equipment.

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