Rail transportation power supplies have been subjected to stringent requirements including transient, energetic spikes, hold up specifications. Traditionnaly majoritory of those power supplies have been developped specifically with discrete components.

Since the mid 90’s with the introduction of modular systems, the use of standard DC/DC modules have gained importance.
The standard input voltages in rail applications are 72 VDC or 110 VDC as in signalling it is 24 VDC in a variation described in the widely used EN50155 standard. Fast and energetic spikes are of primarly importance and need to be handled by efficient protections.
The power requirements generally range from 4W up to 200W per board.
To cope with these particular requirements, GAIA Converter proposes typical off-the-shelf modular power architecture :

• Essential functions such as energetic spike protections and EMI filters according to EN50155, RIA12, IEC571 are provided by standard “l(fā)imitor” front-end products : LGDS family.

• For the heart of the power system, GAIA Converter offers a complete series of low profile, cost-effective and high performance DC/DC modules that come in multiple combinations of input voltages, output possibilities and power ratings : MGDI series.

Whatever your power system need, GAIA Converter has a modular architecture using standard products to provide an instant solution to a wide range of applications from on-board electronics up to protection, signalling or wayside equipments.