Linear load transition between power supplies and battery backup units
US10095292B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2016 |
| Grant date | Oct 9, 2018 |
| Priority date | — |
| Expiry date | Dec 10, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for achieving a linear load transition between power supplies and battery units are described. In some embodiments, a system may include a Power Supply Unit (PSU) coupled to an Information Handling System (IHS) via a power transmission interface; a Backup Battery Unit (BBU) coupled to the IHS via the power transmission interface in parallel with the PSU; and a controller within the BBU. The controller may be configured to determine that the PSU has turned off; allow the BBU to supply all current consumed by the IHS via the power transmission interface while the PSU is turned off; detect that the PSU has turned back on; and in response to the detection, reduce an internal reference of the BBU such that an output current of the BBU is decreased linearly and an output current of the PSU is increased linearly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.