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Samsung patents backup power system to prevent data loss during sudden power cuts

Samsung has filed a patent for an electronic device design that protects data during sudden power failures. The system uses a shared wire to connect the battery controller to storage drives, allowing the battery to send emergency power to the drives when a power loss is detected. This ensures that any data currently being written to the storage is safely saved before the device shuts down.

Why it mattersThis improves data reliability in devices like laptops or servers by preventing file corruption when power is unexpectedly cut.

In the filing’s own words

An electronic device includes a plurality of storage devices respectively connected to a plurality of first connectors, a battery device connected to a plurality of second connectors, a plurality of first wires respectively connected to the plurality of first connectors and respectively connected to the plurality of second connectors, and a second wire, wherein a first storage device from among the plurality of storage devices includes: a first capacitor configured to supply a first auxiliary power to a first storage device, and a first storage power port connected to the second wire, wherein the battery device includes: a first battery power port connected to the second wire, a battery controller, and a battery, wherein the battery controller is configured to supply a second auxiliary power from the battery to the first battery power port based on the information in response to a sudden power off (SPO) event being detected.

What exactly they claim (claim 1)

1. An electronic device comprising: a plurality of storage devices respectively connected to a plurality of first connectors; a battery device connected to a plurality of second connectors; a plurality of first wires respectively connected to the plurality of first connectors and respectively connected to the plurality of second connectors; and a second wire, wherein a first storage device from among the plurality of storage devices includes: a first nonvolatile memory device; a first storage controller configured to store first data in the first nonvolatile memory device; a first capacitor configured to supply a first auxiliary power to the first storage device; and a first storage power port connected to the second wire, wherein the battery device includes: a first battery power port connected to the second wire; a battery controller including a shared register, the shared register configured to store information related to the plurality of storage devices through the plurality of first wires; and a battery, wherein the battery controller is configured to supply a second auxiliary power from the battery to the first battery power port based on the information in response to a sudden power off (SPO) event being detected.

Facts

Company
Samsung (Samsung Electronics Co., Ltd.)
Official title
ELECTRONIC DEVICE RESOLVING SUDDEN POWER OFF
Publication number
US20260277288A1
Application number
19667894
Filed
May 5, 2026
Published
Sep 17, 2026
Inventors
3
Claims
20

Classified under

G06F 1/263 Physics & computing
Read the full filing (official PDF) ↗ Open in the Patent Tracker

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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.