First redundant power supplies using GaN FETs tackles efficiency challenge

First redundant power supplies using GaN FETs tackles efficiency challenge

Technology News |
By Nick Flaherty

Telcodium’s AC Series replaces a typical three-module power supply architecture (two power supply bricks and one intermediate bus converter (IBC)) with a single power module with redundant AC feeds for data centre, server and telecommunication equipment makers to develop smaller, high-performing systems that can virtually eliminate power supply-related failures.

The module operates at 94% True System Efficiency (TSE) or higher, 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 acheive a 97% efficiency which exceeds the current specifications and has yet to be demonstrated by any power supply manufacturer.

The new module is 30% smaller than the two brick implementation and eliminates the standalone IBC, freeing critical space inside a host system. This comes from a patented front-end circuitry using the 650V GaN FET from Transphorm. The standby power is also reduced to under 1W. 

The AC Series’ universal form factor (260 x 100 x 40mm) is lightweight (1.36 Kg) and fits common equipment developed by data centre, server and telecommunications manufacturers. Products are available today and short delivery windows average in-stock to 6 weeks.

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