Device, method and system to determine a mode of voltage regulation based on parasitics of a power delivery network
US12164322B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2021 |
| Grant date | Dec 10, 2024 |
| Priority date | — |
| Expiry date | Apr 13, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/3203
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Techniques and mechanisms for determining an operational mode of a voltage regulator. In an embodiment, an integrated circuit (IC) die is coupled to receive power from a voltage regulator (VR) via a power delivery network (PDN) which comprises circuitry in or on a substrate, such as that of a printed circuit board. The IC die receives from the substrate information indicating a characteristic of a parasitic impedance at the substrate. Based on the information, a controller unit at the IC die selects one of multiple VR modes which each correspond to a respective one of different parasitic impedance characteristics. The controller then signals the VR to provide the selected mode. In an embodiment one of the VR modes corresponds to a relatively high impedance, and also corresponds to a relatively stable sensitivity function in a frequency range above a control bandwidth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.