Typical Bus Architectures

Gaia's power solutions are utilized in a wide range of applications and bus architectures. Please review the examples below of some applications and typical bus architectures for you to gain a better understanding of how to best use our products.

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Gaia Converter support team is here to support you on all aspects. We also have approved Gaia authorized Module Integrator architects who design and built custom power supplies using Gaia power components. Those professionals offer the advantages of providing turnkey solutions assembling standard products, providing quick prototypes, reliable and flexible solutions. Please do not hesitate to contact them for any inquiry.

Avionics / Defense

Avionics/Defense Modular Power Architecture

Avionics and Defense power supplies have always been subjected to stringent requirements including transients, spikes, EMI, hold-up and monitoring specifications. As a result majority of power supplies have been designed specifically with discrete components.

Since the beginning of the 90’s with the introduction of the COTS (Commercial Off-The-Shelf) philosophy in US and modular power architecture the use of standard modules has become of more importance to design complex power supplies.

The most common standard input voltages in Avionics and Defense applications are 24, 28, 270 Vdc or 115 VAC within a permanent variation of 16-40 Vdc or 70-180 VAC to meet worldwide standards. Drop out down to 0VDC and transients also have to be covered. EMI compliance is of primary importance as described in the widely used MIL-STD-461 or DO-160 standards.

To cope with these particular requirements, Gaia Converter proposes typical Off-The-Shelf modular power architecture :

  • FGDS series : qualified front filters to allow compliance with MIL-STD-461 or DO-160 EMI requirements
  • PGDS, LGDS series : essential functions such as drop-out voltage recovery, transient and spike protections as per MIL STD-704, MIL-STD-1275 or DO-160
  • HGMx series : power factor corrected 115VAC to 28VDC converters allow easy board intermediate bus configurations
  • HUGD series : monitoring and hold-up functions are provided by Gaia Converter hold-up module to sustain bus losses together with fault and advisory signals
  • MGDxx series : for the heart of the power system, Gaia Converter proposes 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

Whatever your power system´s need, Gaia Converter has a modular architecture using standard products to provide an instant solution to a wide range of applications from on-board computers, man-machine interface and communication systems.

DC/DC Modular Power Architecture

 

 

AC/DC Modular Power Architecture


Examples:


Rack Converter
Using FGDS-2A, LGDS-300 and MGDS-10 and MGDS-75 modules architecture

  • Input range : 28VDC as per MIL-STD-704F
  • Total power : 150W
  • Output : 3.3V ; 5V ; 12V
  • MIL-STD-461C, MIL-STD-810 compliant

Multiple Outputs Power Supply
Using PGDS-50, HUGD-50, MGDS-10 modules architecture

  • 50ms hold-up time on each output,
  • Input range : 28VDC as per AIR2021E
  • Total power : 50W
  • Output : 3.3V ; 5V ; +/-12V
  • MIL-STD-461C, MIL-STD-810 compliant

Transportation

Transportation Modular Power Architecture

Rail transportation power supplies have been subjected to stringent requirements including transient, energetic spikes and hold up specifications. Traditionally a majority of these power supplies have been developed 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 applications. The 24 VDC is a variation described in the widely used EN50155 standard. Fast and energetic spikes are of primarily importance and need to be handled with sufficient 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 :

  • LGDS series : essential functions such as energetic spike protections and EMI filters according to EN50155, RIA12, IEC571 are provided by standard “limiter” front-end products
  • MGDI series : 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

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.


Examples:


Train-borne rack converter
Using LGDS-50, CGDI modules architecture

  • high density design
  • Input : 110 Vdc
  • Total power : 60 W
  • Outputs : 5V, +/-12V
  • EN50155 compliant

3U rack converter
Using LGDS-50 and MGDI-60 modules architecture

  • Input range : 36-140V transient up to 175V
  • Total power : 50 W
  • Output : single 12V
  • EN50155 compliant

Industrial

Industrial Modular Power Architecture

Industrial applications cover an extremely wide spectrum of applications from low requirements in automation robotics, test equipment up to stringent constraints of transient and EMI in power plant and electricity distribution systems. DC/DC modules have been extensively used since 20 years at the point of load i.e on the board at the point of use, leaving the transients and EMI constraints away from the modules. Gaia Converter delivers modular solutions for those stringent requirements.

The traditional DC input voltages in industrial applications are ranging from 12 Vdc, 24 Vdc, 48 Vdc and 125 Vdc. EMI requirements are described in the EN55022 standard with 2 levels: class A for Industrial environment and class B for Domestic environment. Susceptibility, covering fast transient, repetitive surge and discharge is of primary importance and is described in the EN61000 standards.

To cope with these particular requirements, Gaia Converter proposes typical off-the-shelf modular power architecture :

  • LGDS series : essential functions such as susceptibility fast transient, according to EN61000-4-5 EMI class A according to EN55022 are provided by standard “protection filter”
  • MGDI series : at the heart of a the power system, Gaia Converter offers a complete series of low profile, cost-effective and high performance modules that come in multiple combinations of input voltages, output possibilities and power ratings

Whatever your power system need, Gaia Converter has a modular architecture using standard products to provide an instant solution to a wide range of industrial applications...


Examples:


Rail Din converter
Using 25W module

  • Input range : 18/75 VDC
  • Output : 3.3V

Euro rack converter
Using CGDI modules architecture

  • Uniqueness : full redundant converter
  • Input range : 36-75V
  • Total power : 90W
  • Output : dual : 2.5V, 3.3V
  • ETS-300-132 qualified