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Isolated DC-DC Converters Target Railway EN50155 Systems

Vicor’s new DCM2322 ChiP family is a lower-power and
smaller package variant of its DCM3623 family and provides power system
engineers a smaller footprint option with input voltage ranges that meet
multiple EN50155 standards. Modern rail infrastructure requires a wide range of
DC-DC converters to power a variety of new safety systems and passenger
services, says Vicor, as well as creating a need for performance improvements
in existing systems for both freight and commuter markets. Power density,
efficiency and ease of use are critical considerations when designing isolated,
regulated DC-DC converter systems for modern rail applications.

Packaged in a 22 x 23 x 7 mm ChiP, the new series offers
engineers wide input voltage ranges of 43 – 154V and two more narrow input
voltage ranges of 14 – 72V and 9 – 50V, with power levels ranging from 35 to
120W and efficiencies up to 90.5%.

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The extensive family of isolated DCMs utilize the Vicor
high-frequency zero-voltage switching topology to achieve industry-leading
thermal and electrical performance, with power densities five times greater
than competing DC-DC converters, says Vicor.

In additional to modern rail applications the DCM2322 is well
suited for powering a broad range of robotics, UAV, communications and
defense/aerospace applications.

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DCM2322 ChiP family of parts:

  • Package size
    • 0.97
      x 0.90 x 0.30in (22 x 23 x 7mm)
  • 43 – 154V input
    • 3.3V
      output at 40W
    • 5V
      output at 60W
    • 12V,
      15V, 24V, 28V, 48V output at 120W
  • 14 – 72V input 
    • 3.3V
      output at 35W
    • 5V
      output at 50W
    • 12V,
      15V, 24V, 28V, 48V output at 100W
  • 9 – 50V input
    • 12V,
      15V, 24V, 28V and 48V output at 60W

Vicor | www.vicorpower.com

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Isolated DC-DC Converters Target Railway EN50155 Systems

by Circuit Cellar Staff time to read: 1 min