03 · DATA CENTER
The whole power path inside the rack
As the power drawn by a single AI server rose, the power supply became the bottleneck. Starting with the server PSU, we are taking on the power path inside the rack one stage at a time — including backup and buffering.
Power in an AI data centre enters from the grid and steps down through several stages before it reaches the silicon. Conversion happens at every stage, and its efficiency and density decide how much computing the rack can carry. This is exactly where the high-frequency conversion built for wireless charging applies.
The server power supply is the first step. Using SiC and GaN with planar magnetics and liquid cooling alongside forced air, we are targeting a power-density band that forced air alone struggles to reach.
Next come the devices that hold up when power is lost or spikes. The battery backup unit (BBU) and the capacitor backup unit (CBU) stand on the same bidirectional DC/DC design. Beyond them we are looking at the feed structure directly ahead of the processor.
PRODUCTS & DEVELOPMENT
| Item | Application | Status |
|---|---|---|
| AI server power supply (PSU) | AI server rack power | In development |
| Capacitor backup unit (CBU) | Transient load response | In development |
| Battery backup unit (BBU) | Rack-level power backup | Preparing |
| Point-of-load stage | Direct feed to compute silicon | Preparing |
| Micro LDC | Low-voltage auxiliary supply | In development |
Supplying delivered to customers · In development under active development · Preparing a direction we are building toward
RELATED PUBLIC R&D
Ultra-high-density power module for large-capacity power control in AI servers
Objectives and our scope of work for each project are listed under .Public R&D
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