Telcodium introduces the AC series of redundant power supplies that replace the typical three-module power supply architecture (that have two power supply bricks and an intermediate bus converter [IBC]) with a single power module with redundant ac feeds. The power module operates at 94% true system efficiency (TSE) — reducing average energy loss by 13% or more. To achieve the same TSE with the typical three-module power supply, the bricks and IBC would each need to yield a 97% efficiency — which exceeds the 80Plus Titanium specification (95% x 95% = 90.25%). This has yet to be demonstrated by any other power supply manufacturer. Additionally, the new module is 30% smaller than the typical versions with two bricks and eliminates the standalone IBC.
The high efficiency and size reduction were made possible by the use of JEDEC-qualified 650-V GaN FETs from Transphorm and also some innovative design engineering. The smaller size is a big deal for the targeted market for this power supply, which includes the data center, server, and telecom markets.
The new GaN technology power supply and patented technology parts provide from 92% to 94% TSE. They are 30% smaller and only use 16 W of heat while delivering 243 W to the system. Multiplied by the number of servers used in a data center or telecom center, these differences add up to thousands of dollars saved.
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