Embodiments provide a method and apparatus for capacitor demand evaluation in a PDN that includes at least one power bus provided with multiple nodes. The multiple nodes are distributed at different positions of the power bus. Each of the multiple nodes is connected to multiple capacitors connected in parallel. Each of the multiple capacitors is provided with a respective one of control switches. The method includes: Multiple adjustment operations are performed. Upon accomplishment of each of the multiple adjustment operations, a respective IR drop of the power bus and a respective running speed of the load circuit are detected; for each of different nodes on the power bus, an ideal capacitance of the node is determined according to the IR drops of the power bus and running speeds of the load circuit detected through the multiple adjustment operations.

A battery system with a large-format Li-ion battery powers attached equipment by discharging battery cells distributed among a plurality of battery packs. The discharging of the battery cells is controlled in an efficient manner while preserving the expected life of the Li-ion battery cells. Each battery pack internally supports a battery management system and may have identical components, thus supporting an architecture that easily scales to higher power/energy. Battery packs may be added or removed without intervention with a user, where one of battery packs serves as a master battery pack and the remaining battery packs serve as slave battery packs. When the master battery pack is removed, one of the slave battery packs becomes the master battery pack. Charging and discharging of the battery cells is coordinated by the master battery pack with the slave battery packs over a communication channel such as a controller area network (CAN) bus.

The original Abstract is canceled in favor of the new Abstract presented on the following page.

A power system, related to the field of electronic power. The power system includes a centralized controller and three power modules. Each phase of an alternating current power supply is connected to one power module, and an input end of each power module is connected to one phase of the alternating current power supply. Each power module includes a low voltage controller and at least two power units. Each power unit includes a unit controller. The centralized controller is connected to each low voltage controller by using a bus. The centralized controller sends a control signal to each unit controller by using each low voltage controller, to control the unit controller and/or a power conversion circuit. The power system can implement hot swap of the power module and improve on-site operation reliability.

An electric storage system is provided including a switching unit which is arranged between an electric storage unit of an electric storage device which is configured to be connectable in parallel with another power supply device and wire which is configured to electrically connect the electric storage device and the another power supply device, wherein the switching unit is configured to switch the electrical connection relationship between the wire and the electric storage unit; and a restriction unit which is connected in parallel with the switching unit between the wire and the electric storage unit, has a higher resistance than the switching unit, and is configured to cause current to flow in a direction from the electric storage unit to the wire and suppress current flowing in a direction from the wire to the electric storage unit.

A power supply circuit is configured to supply power to a display panel. The power supply circuit includes a receiver circuit and a transmitter circuit. The receiver circuit is configured to couple the display panel and output a hot plugging signal. The transmitter circuit is configured to receive the hot plugging signal and couple a power circuit. The transmitter circuit is further configured to communicate the receiver circuit to generate an enable signal. The hot plugging signal and the enable signal are configured to control whether a first voltage signal from the power circuit is transmitted to the receiver circuit and the display panel via the transmitter circuit.

A system for power management of an electronic device. The system comprises a programmable system microcontroller; power ports configured to sink or source electrical power; and a programmable power multiplexor connected between the power ports and the system microcontroller. The system further comprises bi-directional load switches connected between the power port and a bi-directional voltage convertor, and configurable to allow electrical power to flow through the bi-directional load switch. The bi-directional voltage convertor converts a first voltage supplied by the bi-directional load switch to a second voltage and supplies power at the second voltage to the electronic device or external device through the power ports. The programmable system microcontroller controls the direction in which each bi-directional load switch allows power to flow and the second voltage, such that the system sinks or sources power at each of the power ports according to programming of the system microcontroller.

A control circuitry of a switched-mode power module, the switched-mode power module comprising a power stage configured to receive input power from a power supply and to output power to a load, the output power having an output voltage, the control circuitry configured to enable the power stage to output power when the output voltage is lower than a reference voltage by one of: a predetermined amount and an adaptive amount, the control circuitry further configured to disable the power stage from providing the output power when the output voltage exceeds the reference voltage by one of: a predetermined amount and an adaptive amount.

Power systems and methods of using the same to deliver power. A power system referenced herein can include a housing capable of attaching to a workstation, one or more cradles or mounting fixtures to receive at least one energy storage device, electronic circuitry to communicate status of the at least one energy storage device, state of charge of the at least one energy storage device, and/or overall health of the at least one energy storage device, and one or more electrical connectors to allow the at least one energy storage device to charge and/or discharge and communicate with the electronic circuitry, with said housing having an internal power supply and charge circuitry, said power supply capable of receiving input power from an external AC or DC power source; wherein the power system is configured to deliver power to the workstation.

The present disclosure relates to systems, methods, apparatuses, devices, and techniques for providing electronic consoles. The electronic consoles can include a modular assembly that permits components to be arranged if varying configurations. Additionally, the electronic consoles can be configured to operate in various operational modes, including an extended reality (XR) mode, a desktop mode, and a television set top box mode. The electronic consoles can execute extended reality applications, including virtual reality applications, augmented reality applications, and/or mixed reality applications.

A power conversion system comprises a plurality of power modules, each including a power input end; a charging input end; a power output end; at least one power conversion unit, each including an AC/DC conversion unit and at least one DC-Bus capacitor and being connected to the power input end and the power output end; and a pre-charging unit connected to the charging input end for receiving direct current and connected to the DC-Bus capacitor. The pre-charging unit starts to charge the DC-Bus capacitor of one of the power modules when said power module breaks down or the load of the power conversion system is light so that no current flows through the AC/DC conversion unit. The power input ends of the power modules are connected in series and then connected to an AC power source, and the power output ends of the power modules are connected in parallel.