Dynamic peak power management for multi-die operations
AssigneeYangtze Memory Technologies Co., Ltd.
InventorsJason GUO, Qiang TANG
Life of this patent
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Abstract
A system includes multiple memory dies. Each of the memory dies includes a PPM circuit including a first pull driver, a second pull driver, and a PPM contact pad connected between the first pull driver and the second pull driver. The PPM contact pads of the multiple memory dies are electrically connected with each other. The PPM circuits of the multiple memory dies are configured to manage peak power operations according to a first pull current flowing through a certain first pull driver of a certain PPM circuit. The first pull current is a sum of second pull currents flowing through second pull drivers of the PPM circuit. Each of the second pull currents is proportional to a current level of a corresponding memory die.
Claims20
A system comprising multiple memory dies, each of the memory dies comprising:
- a peak power management (PPM) circuit comprising a first pull driver, a second pull driver, and a PPM contact pad connected between the first pull driver and the second pull driver,
- wherein the PPM contact pads of the multiple memory dies are electrically connected with each other;
- the PPM circuits of the multiple memory dies are configured to manage peak power operations according to a first pull current flowing through a certain first pull driver of a certain PPM circuit;
- the first pull current is a sum of second pull currents flowing through second pull drivers of the PPM circuits;
- and
- each of the second pull currents is proportional to a current level of a corresponding memory die.
A method of peak power management (PPM) for a storage system with multiple memory dies, wherein each of the memory dies comprises a PPM circuit having a PPM contact pad, and PPM contact pads of the multiple memory dies are electrically connected, the method comprising:
- regulating second pull currents flowing through second pull drivers of the PPM circuits on the multiple memory dies;
- and
- managing peak power operations of the multiple memory dies according to a first pull current flowing through a certain first pull driver in a certain PPM circuit, wherein the first pull current is a sum of the second pull currents, and each of the second pull currents is proportional to a current level of a corresponding memory die.
A storage system, comprising:
- a memory controller;
- and
- multiple memory dies coupled to the memory controller, wherein each of the memory dies comprises a peak power management (PPM) circuit, each PPM circuit comprising:
- a first pull driver;
- a second pull driver;
- and
- a PPM contact pad connected between the first pull driver and the second pull driver, wherein:
- the PPM contact pads of PPM circuits on the multiple memory dies are electrically connected with each other;
- and
- the PPM circuits of the multiple memory dies are configured to manage peak power operations for the multiple memory dies according to a first pull current flowing through a certain first pull driver of a certain PPM circuit, the first pull current being a sum of second pull currents flowing through second pull drivers of the PPM circuits, each of the second pull currents being proportional to a current level of a corresponding memory die.
Dependencies are inferred from the claim text.