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AC/DC, DC/DC Power Converter (Ground Based Artillery)

Espey designed and manufactures this ground based power converter for a US Army Ground Based Communications Application. The power converter operates from either 115/230VAC or 28VDC in accordance with MIL-STD-1275, to provide regulated outputs of +/-5, +/-15, -52, +90 VDC with a continuous power rating of 170W.

Electrical Specifications

  • Input Voltage: 22-32 Vdc or 115/230 Vac 50/ 60/ 400 Hz
  • DC Output Voltages and Current: + 5V @ 10A, – 5V @ 1.2A, +15V @ 1.5A, -15V @ 1.5A, -52V @ 1.0A, +90 Vdc @ 100mA
  • Regulation, Line & Load: +/- 2%
  • Ripple/noise: < 1% peak-peak of nom output volt.

Mechanical Specifications

  • Size: 8″ x 12″ x 4″
  • Weight: 13 lbs. Max
  • Hermetic sealed
  • Aluminum Casting with integral heat-sink
  • Convection cooled

Features

  • Qualified to military environment extremes
  • Qualified to MIL-STD-461
  • Input reverse polarity protected.
  • Reliability (MTBF): 25000 Hours
  • EMP Remote Crowbar input
  • Modular Design for Maintainability
  • Over-voltage crowbar at 125%
  • Maintenance: 30 Minutes MTTR
  • Current Limit at 150%
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