First PC power supply with efficient silicon carbide (SiC) transistors

Switching transistors from silicon carbide are to increase the efficiency of voltage converters; MSI is installing them in a 1.6-kilowatt power supply unit.

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ATX power supply MSI MEG Ai1600T PCIE5

ATX power supply MSI MEG Ai1600T PCIE5 with SiC MOSFETs

(Image: MSI)

2 min. read

Switching transistors made from the semiconductor material silicon carbide (SiC) switch with lower losses than conventional MOSFETs. With the MEG Ai1600T PCIE5, the Taiwanese company MSI is now launching the first desktop PC power supply with SiC technology on the market. The SiC MOSFETs (from Infineon) and other optimizations promise advantages in terms of efficiency, fan noise and design.

MSI claims an efficiency of up to 94% for the MEG Ai1600T PCIE5, which is said to comply with the 80 Plus Titanium and Cybenetics Titanium specifications. It is also compatible with the ATX 3.1 specification and briefly delivers significantly more than its rated power, namely over 3.8 kilowatts for 0.0001 seconds (100 microseconds).

Due to the lower losses, optimized heat sinks and smaller transformers with flat windings, the housing of the 1.6 kilowatt converter is only 19 centimetres deep.

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The power supply unit is also said to work particularly quietly and has a "semi-passive" operating mode, in which the fan stops as long as the components remain cool enough.

The fully modular power supply – all cables can be removed – comes with two cables for graphics cards with 12V-2x6 connectors, each of which transmit up to 600 watts.

MSI has not yet revealed when and at what price the MEG Ai1600T PCIE5 will be launched in Germany.

(ciw)

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This article was originally published in German. It was translated with technical assistance and editorially reviewed before publication.