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6 August 2012

Powerful PMDS/PCMDS30 Series Railway Applications

DC/DC

This primary switched DC/DC converters series PMDS/PCMDS30 from MTM Power is especially designed for automotive and railway applications. These converters operate according to the current source push-pull principle and work with a frequency of 70/140 kHz.

Advantages of this switching topology are the wide input voltages with constant efficiency, transformers with good coupling and low leakage inductance, while at the same time being usable for direct control of the secondary synchronously detection.

The PMDS/PCMDS30 covers an input voltage of 14.4.154VDC with only two different nominal voltages and is available with an output voltage of 5.1V; 12V; 24V or 48V with 30W. The converters need no ground load and are short-circuit protected by primary and secondary power limitation. Further features are reverse polarity protection in connection with an active input current limiting.

Depending on the application the converters are available either for print or chassis mounting. The converters are maintenance free, vacuum encapsulated, prepared for the use in devices with Protection Class II. They show a mechanically and electrically rugged design using SMD-technology and undergo an automatic piece-by-piece test.

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