Data centers employ powerful CPUs and GPUs that consume significant amounts of current, e.g., up to a thousand amperes of current. To mitigate the large thermal losses in the power delivery network that occur at such high amperages, voltage regulators (VR) are moved closer to their loads, e.g., vertically below the loads. For a VR to fit in the tight space below the load, it must be of high density and integrate the decoupling capacitors that often occupy the space below the load. This disclosure describes a scalable, dual-fed-bridge (DFB) coupled inductor that is optimized for vertical power delivery. The DFB coupled inductor interfaces with power stage components on both its sides, resulting in high utilization of magnetic core flux density, reduced physical dimensions, and flexible layout possibilities. Decoupling capacitors are fit below the DFB inductor, resulting in further space saving and excellent transient response.

Creative Commons License

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.