Twisted differential compensation for routing high-speed signals near power delivery inductors and system miniaturization
US12426153B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2021 |
| Grant date | Sep 23, 2025 |
| Priority date | — |
| Expiry date | Jan 25, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/1003
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Apparatus and methods employing twisted differential compensation for routing high-speed signals near power delivery inductors. Traces used for a high-speed differential signal including a P trace and an N trace are routed through one or more layers in a multi-layer printed circuit board (PCB) substrate and employ a twisted portion proximate to the centerline of an inductor under which portions of the P and N traces are swapped horizontally in a layer parallel to the top plane and/or are swapped vertically by swapping layers. The signal paths are routed such that a level of noise inductively coupled into the P trace and the N trace from the inductor is approximately equally. Stripline structures are used for signals that are routed under an inductor, while stripline and microstrip structures are used for signals routed adjacent to an inductor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.