Predictive power factor control for electronic systems
US10770967B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 9, 2018 |
| Grant date | Sep 8, 2020 |
| Priority date | — |
| Expiry date | Dec 12, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A predictive power factor control system for an electronic system which includes a power supply providing power at a power supply output to a load having at least one component operable in a plurality of operating states. A load controller selectively determines the operating state of the load. A power factor control (PFC) circuit is coupled to the power supply and cooperates with the power supply to maintain the power factor of the power supply output within desired ranges. The load controller may provide the PFC circuit with a pending load change notification prior to a pending change in the operating state of the controlled load or prior to the activation of additional loads on the power supply output, enabling the PFC circuit to predictively adjust operation to avoid or minimize power factor fluctuations arising from changes in operating state of the load or activation of an additional loads.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.