Point of load regulator synchronization and phase offset
US9570983B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2014 |
| Grant date | Feb 14, 2017 |
| Priority date | — |
| Expiry date | May 2, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/1586
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electronic system includes a multiple POL regulators that supply a regulated voltage to a component within the electronic system. A phase spreading scheme may be implemented so that the POL regulators operate under various phases to reduce voltage noise, high input capacitance, and high radiated emissions. One phase spreading scheme includes a single POL regulator controlling phase spreading so that the other POL regulators operate under different phases. Another phase spreading scheme includes an upstream POL regulator determining a phase offset that may be passed to a downstream POL regulator so that the downstream POL regulator may operate under a different phase relative to the upstream POL regulator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.