Reduction of ssd burst current using power loss energy store
AssigneeIntel Corporation
InventorsKnut Grimsrud, Adrian Mocanu, Andrew Morning-Smith, Zeljko Zupanc
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Abstract
In embodiments, an apparatus includes a burst current monitor, to detect a burst of input current drawn by a SSD from a host above a pre-defined burst threshold, and control logic coupled to the burst current monitor. The control logic, in response to the detection by the burst current monitor of the input current above the burst threshold, causes a capacitor of the SSD to supply an assistance current to the SSD, to reduce the input current drawn by the SSD. In embodiments, the capacitor is a hold-up capacitor disposed in a PLI circuit of the SSD, and the apparatus is integrated within a hold-up control logic sub-circuit of the PLI circuit.
Claims20
An apparatus, comprising:
- a burst current monitor, to detect a burst of input current, drawn by a solid state device (SSD) from a host, above a pre-defined burst threshold;
- and
- control logic coupled to the burst current monitor, wherein the control logic, in response to the detection by the burst current monitor of the input current above the burst threshold, is to cause a current source associated with the apparatus to supply an assistance current to the SSD, to reduce the input current drawn by the SSD.
One or more non-transitory computer-readable storage media comprising a set of instructions, which, when executed by a device provided in a SSD, cause the device to:
- receive an indication that a burst of input current, drawn by a solid state device (SSD) from a host, is above a pre-defined burst threshold;
- and
- in response to the indication, cause a capacitor of the SSD to supply an assistance current to the SSD, to reduce the input current drawn by the SSD.
A method, comprising:
- detecting that a burst of input current, drawn by a solid state device (SSD) from a host, is above a pre-defined threshold;
- and
- in response to the detection of the input current above the burst threshold, causing a capacitor of the SSD to supply an assistance current to the SSD, to reduce the input current drawn by the SSD.
Dependencies are inferred from the claim text.