Power Supply Circuit and Energy Storage Device Patent Application

ChangeBridge: Patent Apps - Power Supply (H02J)

Published December 5th, 2025

Detected March 26th, 2026

Summary

The USPTO has published a new patent application, US20260088645A1, detailing a power supply circuit and energy storage device. The application, filed on December 5, 2025, describes a system with DC/DC and AC/DC conversion modules designed for flexible charging and inversion modes.

View original document View source feed page

What changed

This document is a new patent application (US20260088645A1) filed with the USPTO on December 5, 2025. It describes a power supply circuit and an energy storage device, featuring a DC/DC conversion module, first and second AC/DC conversion modules, an alternating current input interface, and first and second alternating current output interfaces. The abstract details how these components interact, including the ability of the AC/DC modules to operate in rectification or inversion modes and the DC/DC module to operate in charging or discharging modes.

As this is a patent application, it does not impose direct regulatory obligations or compliance deadlines on businesses. However, it represents a new invention in the field of power supply and energy storage. Companies involved in developing or manufacturing such technologies may wish to review the application for potential intellectual property considerations, such as freedom to operate or opportunities for licensing.

Source document (simplified)

← USPTO Patent Applications

POWER SUPPLY CIRCUIT AND ENERGY STORAGE DEVICE

Application US20260088645A1 Kind: A1 Mar 26, 2026

Inventors

Wenping TONG, Dong WU, Xi CHEN, Lei WANG

Abstract

A power supply circuit includes a DC/DC conversion module, first/second AC/DC conversion modules, an alternating current input interface, and first/second alternating current output interfaces. A first end of the first AC/DC conversion module is connected to a battery module through the DC/DC conversion module, a first end of the second AC/DC conversion module is connected to the first end of the first AC/DC conversion module through a direct current bus, the first alternating current output interface is connected to a second end of the first AC/DC conversion module and a first terminal of the alternating current input interface, the second alternating current output interface is connected to a second end of the second AC/DC conversion module, both the first and second AC/DC conversion modules may operate in a rectification mode or an inversion mode, and the DC/DC conversion module operates in a discharging mode or a charging mode.