Hybrid design boosts conduction cooling in power supply

Hybrid design boosts conduction cooling in power supply

Technology News |
By Nick Flaherty

Traco Power has been working on a novel power supply design that aims to maximize the potential of conduction-cooled systems.

The TCI power supply series from Traco uses a hybrid case design that is part encased and part encapsulated to boost the conduction cooling

While the metal case ensures optimal heat transfer to any baseplate or case, the special potting compound does the same for the individual components, boosting the thermal connection to all critical components which is otherwise hard to achieve within conventional power supply designs.

By combining the best aspects of both case types, the TCI series improves the thermal capabilities and can reach much higher power levels without the need of a fan within the same form factor compared to traditional power supply designs, delivering 80 to 100% of the rated maximum output power.

Although fans are a proven cooling method, they have drawbacks in noise generation, wear and tear from dust and particles and the need for airflow-optimized designs as well as the risk of failures if the fan becomes blocked or damaged.

Various cooling technologies have emerged and improved in recent years such as baseplate cooling, heat pipes, liquid cooling, and thermoelectric cooling systems. However, many passive conduction cooling systems such as heatsinks or cooling baseplates have limitations and lose much of their effectiveness when used with higher power systems.

The TCI product range includes models from 130 to 500 Watts and offers a wide temperature range from -30 to 80°C as standard as well as efficiency of up to 94%, Over-Voltage Category OVC III and active power factor correction.

The high output power with a passive conduction cooling system reduces noise, improves reliability and enables more compact fanless designs with dust resistance while offering design flexibility and reduced maintenance efforts.


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