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US 10,095,292 B2Granted
Linear load transition between power supplies and battery backup units
AssigneeDell Products L.P.
InventorsLei Wang, Mehran Mirjafari, Kunrong Wang
Life of this patent
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AssigneeDell Products L.P.
InventorsLei Wang, Mehran Mirjafari, Kunrong Wang
Estimating the term…
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.
A system, comprising:
A memory storage device having program instructions stored thereon that, upon execution by a controller within a Backup Battery Unit (BBU) of an Information Handling System (IHS), cause the BBU to:
A method performed by a controller within a Backup Battery Unit (BBU) of an Information Handling System (IHS), the method comprising:
Dependencies are inferred from the claim text.