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TDI Power | AC-DC Power Modules

TDI power design and manufacture AC - DC power solutions for a wide range of markets and applications. With rising demands for higher power density, smaller size, more portability TDI power continuously improves its range of AC-DC power supplies. With products ranging from a few hundred watts within a simple power shelf through to configured solutions at 100kW+ TDI has a broad portfolio of products to draw on.

Environmental and cooling requirements are very significant factors to consider in selecting a power solutions. TDI powers capabilities include conventional fan cooled products, liquid cooled modules and totally environmentally sealed solutions that are capable of operating submerged in water.

Popular standard product families include the Front Connect series of low power modules, the Mercury series of modules and the Signature 10000,

Additionally TDI power designs custom solutions for many different applications

 
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Front Connect rectifiers, 1U, <600W
Mercury, 1U/2U, 800W to 4300W
Signature , 1U, 1000W
Constant Current Source, 0-150A, up to 35V, 3 Phase 4 Wire (star)
Commercial Aerospace Products
 
See Also
Environmentally Sealed Power Modules
Liquid Cooled
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Technical Support
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Tradeoffs Between Density, Reliabilty and Total Cost of Ownership in Power Systems (TW0052)
Highly Accelerated Stress Screening (HASS) (TW0058)
Optimizing Uninteruptable Power for Data Processing (TW0051)
Environmentally Sealed Power Modules (TW0056)
Assuring reliability utilizing Lead Free Solder (TW00)
Tradeoffs between Single- Phase and Three-Phase Power (TW0057)
Next Generation Military Vehicle Power Conversion Modules (TW0055)
Powering In-Flight entertainment equipment (TW0061)
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Lead has been determined to be a hazardous substance and the use of tin/lead solders are being restricted by government laws and regulations such as the European Union's RoHS Directive (Restriction of Hazardous Substances).
Initial and operating costs can generally be reduced and system reliability increased by incorporating a relatively simple DC UPS as an integral part of the data processing or communication equipment.
Improved components, technology and packaging / cooling concepts have reduced the size (watts/cubic-inch), weight (watts/pound) and initial cost (dollars / watt) of power support with improved reliability and reduced maintenance (i.e., lower new system goals of smaller, lighter and cheaper, along conversion products. When implemented properly, these can reduce operating cost.
Great opportunities for reduced design cycle time and improved performance are presented through the use of standardized cooling topologies that can be employed across various through the use of standardized cooling topologies that can be employed across various power power
TDI has developed several alternative equipment design and construction techniques for highly reliable power conversion, compatible with increasing environmental stress levels. The availability of this type of equipment opens up new alternatives for system cost and reliability optimization.
This paper compares single-phase and three-phase circuits from the component count, stress level and complexity standpoints. It demonstrates that when these items are taken into account, quite often the best choice is a combination of single-phase modules, configured to balance individual power line phases
HASS is especially productive in power conversion equipment, where component stress levels are typically more aggressive than found in other products. TDI has been instrumental in establishing HASS as a viable, high value-add production process.
As the number of IFE being designed for commercial aircrafts increases, there is also an increasing need for power supplies (PSU) for these systems. Powering IFE is not a trivial task and requires special methods due to specific electrical and safety requirements.