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Railway DC/DC converter replaces 5 devices

Posted: 23 Oct 2012     Print Version  Bookmark and Share

Keywords:DC/DC  converter  railway  power 

Murata Manufacturing Co. Ltd introduces the UCR100 series of DC/DC converters designed for railway power conversion and battery applications. The devices accommodate an 8:1 input range, from 16.8VDC to 137.5VDC. They comprise 3 single output models providing 5VDC, 12VDC, or 24VDC outputs.

The converters are packaged in a Euro Cassette format measuring 3U x 4TE x 165mm, footprint and pin compatible with competitive product offerings. Typically a single UCR module can take the place of up to five alternative modules currently used in customers' existing applications. They are also said to improve overall system reliability because of the input hold up option that requires just a single capacitor to provide up to 10ms holdup.

Additional model-specific options include current share, holdup and an adjustable under-voltage lockout feature.

The units offer 90 per cent efficiency, typical. They are said to create less heat than other power supplies and need no extra forced air cooling/ They are packaged in a ruggedized enclosure and conformally coated in order to achieve high standards of reliability and resistance to the effects of moisture. Mounting methods can be in a 19-inch rack or bolted to a bulkhead. The UCR100 series provides tight line and load regulation together with control features such as remote On/Off, a ±10 per cent output trim and a remote sense of ±10 per cent.

The active current share option allows multiple UCR converters to connect in parallel to support higher output currents or to achieve higher system reliability through redundancy.

The UCR100 series conforms to the EN50155, EN50116, IEC60571, RIA12 and IEC/EN/UL60950-1 transportation industry safety standards.

Pricing in OEM quantities ranges from $500, with lead time of stock to 12 weeks.

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