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DC/DC Power Converter (Railway – Rolling Stock)

This power supply was developed by Espey for a major locomotive manufacturer. The high reliability power supply was designed and tested for extreme locomotive environmental conditions. This Power Converter operates from a very wide input ranging from 25 to 85 Vdc. There are six outputs (+5,+15,-15,+19,+24,-24 Vdc) with a total load power of 1000 W continuous and 1620 W for 1 minute transients. All outputs are fully regulated with 115% current limiting and 125% OVP.

Electrical Specifications

  • Input Voltage: 25 – 85 Vdc
  • Output Voltage: +5,+15,-15,+19,+24,-24 Vdc
  • Output Power: 1000 watts continuous/channel
  • Regulation, Line & Load: ±5%
  • Efficiency: 75 % minimum

Mechanical Specifications

  • Weight: 40 lbs. max
  • Size: 10″x10″x15″
  • Aluminum extrusion with integral heatsink

Features

  • Output current limit protection
  • 20% design margin on power and current ratings
  • Power enable control signal
  • Soft-start with battery voltage application or enable control signal
  • Qualified to locomotive environment extremes
  • Qualified for EMI
  • High Reliability Design

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