Multi-parameter current sharing
AssigneeDell Products L.P.
InventorsMehran Mirjafari, Mark A. Muccini, Lei Wang
Life of this patent
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Abstract
Systems and methods for providing multi-parameter current sharing are described. In some embodiments, a system may include an Information Handling System (IHS) and a plurality of Power Supply Unit (PSU) coupled to the IHS in a parallel configuration, a given PSU configured to: receive an indication of an output current provided by the given PSU and available to the IHS via a power transmission interface; and modify the output current using a current sharing signal calculated based upon two or more parameters of the system.
Claims12
A system, comprising:
- an Information Handling System (IHS);
- and
- a plurality of Power Supply Units (PSUs) coupled to the IHS in a parallel configuration, a given PSU configured to:
- receive an indication of an output current provided by the given PSU and available to the IHS via a power transmission interface;
- and
- modify the output current using a current sharing signal calculated based upon two or more parameters of the system, wherein a first parameter includes the output current, multiplied by a first weighting factor, and wherein a second parameter includes an error between an output voltage of the given PSU and a reference voltage internal to the given PSU, multiplied by a second weighting factor different from the first weighting factor.
A hardware memory storage device having program instructions stored thereon that, upon execution by a logic circuit within a Power Supply Unit (PSU) of an Information Handling System (IHS), cause the PSU to:
- receive an indication of an output current provided by the PSU and available to the IHS via a power transmission interface;
- and
- modify the output current using a current sharing signal calculated based upon two or more parameters internal to the IHS, wherein a first parameter includes the output current, weighed by a first weight, and wherein a second parameter includes an error between an output voltage of the PSU and a reference voltage internal to the PSU, weighed by a second weight different from the first weight.
A method performed by a controller within a Power Supply Unit (PSU) of an Information Handling System (IHS), the method comprising:
- receiving an indication of an output current provided by the PSU and available to the IHS via a power transmission interface;
- and
- modifying the output current using a current sharing signal calculated based upon two or more parameters internal to the IHS, wherein a first parameter includes the output current multiplied by a first factor, and wherein a second parameter includes an error between an output voltage of the PSU and a reference voltage internal to the PSU, multiplied by a second factor different from the first factor.
Dependencies are inferred from the claim text.