Sanmina Corporation

Istor Networks, Inc.

Alec Shen

Roger Thorpe

Erasmo Javier Brenes

Stephen F O'Neil

Paul Sweere

Arvindhkumar Lalam

James Kenneth White

An apparatus and method of keeping an energy storage cell at or above a target temperature, includes receiving at a processing circuit, an analog voltage that is proportional to a temperature of the energy storage cell, converting, at the processing circuit, the analog voltage to a pulse-width-modulated signal having a duty cycle that is proportional to the analog voltage, and driving a switch, with the pulse-width-modulated signal, between conductive and non-conductive states to modulate a voltage passing across (or a current flowing through) a heating element in series with the switch, the heating element being in thermal communication with the energy storage cell, wherein the duty cycle of the pulse-width-modulated signal is adjusted to maintain the temperature of the energy storage cell at or above the target temperature.

Heating element and circuit managing equivalent series resistance of energy storage cell

A single multichip package is provided, comprising: a substrate having opposing upper and lower surfaces. A first die is mounted on the upper surface of the substrate and includes one or more non-volatile memory devices. A second die is mounted on the upper surface of the substrate, and includes at least one of: (a) a non-volatile memory controller that facilitates transfer of data to/from the one or more non-volatile memory devices, (b) a register clock driver for volatile memory devices, and/or (c) one or more multiplexer switches configured to switch between two or more of the volatile memory devices. A plurality of wire bonds connect the first and second dies. A plurality of solder balls are located on the lower surface of the substrate for mounting the single multichip package to a printed circuit board, the plurality of solder balls electrically coupled to the first die and the second die.

Non-volatile dual in-line memory module (NVDIMM) multichip package

A bi-directional reflective memory channel between a pair of storage controllers is used to maintain a mirrored copy of each storage controller's native buffer contents within the buffer of the other storage controller. To maintain such mirrored copies, buffer write operations that fall within a reflective memory segment of one storage controller are automatically reflected across this channel to the other storage controller for execution, and vice versa. The write operations are preferably transmitted across the reflective memory channel using a protocol that provides for error checking, acknowledgements, and retransmissions. This protocol is preferably implemented entirely in automated circuitry, so that the mirrored copies are maintained without any CPU intervention during error-free operation. When a failover occurs, the surviving storage controller uses the mirrored copy of the failed storage controller's native buffer contents to assume control over the failed storage controller's disk drives.

Storage controller redundancy using bi-directional reflective memory channel

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Irvine, CA, United States of America

Alec Shen