Abstract: A carrier board for use with a host computing system includes bus connectors for one or more removable memory modules. The carrier board includes energy storage components and control circuitry to charge the energy storage components using a voltage source provided by the host computing system. If the host computing system experiences a power failure, the control circuitry initiates discharge the energy storage components to power the carrier board. As such, the memory controller on the carrier board may initiate steps to secure any data that would have been lost due to the power failure, such as data that is part of write operations in progress at the time of the power failure or data to be migrated as part of garbage collection operations.

Abstract: Apparatus for managing power in a data storage device, such as a solid state drive (SSD). In some embodiments, an energy management circuit supplies electrical power to a non-volatile memory (NVM). The energy management circuit has cascaded first and second E-Fuse switch circuits each with an input terminal and an output terminal. The second E-Fuse switch circuit receives input power from the first E-Fuse switch circuit used as a rail voltage for the device. The second E-Fuse switch circuit is configured to monitor the rail voltage, deactivate the first E-Fuse switch circuit responsive to the rail voltage falling below a predetermined threshold, and supply backup power to the device from a backup power source.

Abstract: A carrier board for use with a host computing system includes bus connectors for one or more removable memory modules. The carrier board includes energy storage components and control circuitry to charge the energy storage components using a voltage source provided by the host computing system. If the host computing system experiences a power failure, the control circuitry initiates discharge the energy storage components to power the carrier board. As such, the memory controller on the carrier board may initiate steps to secure any data that would have been lost due to the power failure, such as data that is part of write operations in progress at the time of the power failure or data to be migrated as part of garbage collection operations.