MTM Power® Messtechnik Mellenbach GmbH

absolutely powerful: Series PMDS/PCMDS30 for Railway Applications

In recent years, MTM Power has increasingly developed into one of the largest power supply manufacturer for railway applications in Europe. The decisive factor here is the quality of innovative products and the flexibility and reliability of the base business. MTM Power products meet all relevant standards and VDE/EN/UL regulations if applicable. A worldwide unique thermo-selective vacuum encapsulation (EP 1 987 708, U.S. Patent No. 8, 821, 778 B2), large-scale testing and examination, including burn-ins, guarantee a high quality and reliability.
The primary switched DC/DC converters series PMDS/PCMDS30 of MTM Power is especially designed for automotive and railway applications. These converters operate according to the current source push-pull principle and working with a frequency of 70/140 kHz. Advantages of this switching topology are the wide input voltages with constant efficiency, transformer with good coupling and low leakage inductance, at the same time usable for direct control of the secondary synchronously detection.
The PMDS/PCMDS30 cover an input voltage of 14.4…154 VDC with only two different nominal voltages and are available with an output voltage of 5.1 V; 12 V; 24 V or 48 V with 30 W. 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 (PMDS30) or chassis mounting (PCMDS30) and the dimensions are 110 x 80 x 25,5 mm. The converters with an ambient temperatue range of -40 to
+85 °C acc. EN 50 155 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.

MTM Power offers a wide range of EN 50155 compliant DC/DC converters with 30 – 600 W which are especially designed for vehicle and railway applications. Particularly for the sophisticated use in trains, these devices supply the electric and electronic systems on board and track side. Besides these rail converters, the product range includes DC/AC inverters, filters and multi-power supply systems.