A first electronic device receives a first operation, where the first operation is used to switch a power role in a charging process; and sends a first instruction to a second electronic device based on the first operation, where the first instruction indicates the second electronic device to switch to a charged device. Based on the first operation, the first electronic device adjusts the first signal line to be a signal line for the first electronic device to send data to the second electronic device, adjusts the second signal line to be a signal line for the first electronic device to receive data sent by the second electronic device, and adjusts an output voltage of the first electronic device to switch the first electronic device to a power supply device.

Disclosed herein are systems and methods for energy management. A system, such as a vehicle, includes a plurality of energy storage units that include a supercapacitor and an electrochemical battery. The system includes an energy controller that identifies a safety threshold associated with at least a subset of the energy storage units. The energy controller tracks historical power draw from the plurality of energy storage units over time in power tracking data, and identifies a power draw based on the power tracking data. The energy controller switches between a first configuration and a second configuration based on the identified power draw crossing the safety threshold. The first configuration is configured for drawing power from the electrochemical battery and disconnecting from the supercapacitor, while wherein the second configuration is configured for drawing power from the supercapacitor and disconnecting from the electrochemical battery.

A power supply circuit and a ranging device, the power supply circuit includes multiple power supply units, multiple voltage protection modules and a power supply switching module, each voltage protection module is connected to each power supply unit in one-to-one correspondence; the input end of the power supply switching module is connected to each voltage protection module, and the output end of the power supply switching module is configured to connect with the functional module of the ranging device; the power supply switching module is configured to achieve the electric circuits' on and off between power supply units and the functional module.

A method including: monitoring a power supply from a line power source; monitoring a temperature of one or more of a battery and a super-capacitor, when power is available through the line power source: supplying power directly from the line power source to the supported system; and supplying power directly to the charger to charge the battery and the super-capacitor, and in the event of a detected line power outage, supplying power to the supported system from one or more of the battery and super-capacitor based at least on the detected temperature of the one or more of the battery and super-capacitor.

The present disclosure provides an on-board charger and inverter system (100, 200, 300) for a vehicle. The system comprises a unified charger cum traction inverter (UCCTI) configured for bidirectional conversion between alternating current and direct current, a rechargeable battery coupled to the UCCTI (1, 9, 16), and a dual three-phase permanent magnet synchronous motor (PMSM) (3, 11, 18) having a first three-phase terminal set (3a) coupled to the UCCTI (1, 9, 16) and a second three-phase terminal set (3b) selectively connectable to an external alternating current source (5, 13, 20). A controller (4, 12, 19) configures the dual three-phase PMSM (3, 11, 18) to operate as a transformer during charging or as a propulsion motor during traction. The UCCTI (1, 9, 16) operates in a first charging mode using three-phase alternating current, a second charging mode using single-phase alternating current, a third traction mode supplying three-phase alternating current to the PMSM (3, 11, 18), and a fourth traction mode supplying single-phase alternating current to the PMSM (3, 11, 18), thereby enabling integrated charging and propulsion functions.

An inductor and a related apparatus are provided. The inductor includes an upper magnet yoke and a lower magnet yoke that are straight-shaped and are disposed in parallel. A first winding disposed on a first fiber post, and a second winding disposed on a second fiber post. The upper magnet yoke, a first upper fiber post, and a second upper fiber post are integrally molded. The lower magnet yoke, a first lower fiber post, and a second lower fiber post are integrally molded. A clockwise/counterclockwise direction of a current in the first winding is consistent with a clockwise/counterclockwise direction of a current in the second winding.

An integrated synchronous motor charger includes a battery, and a synchronous motor having a set of phase windings, with each phase winding thereof having an open-ended winding configuration, the synchronous motor being electrically connected to the battery via a bidirectional inverter on a first end of at least one phase winding from the set of phase windings, and to a power source on a second end of the at least one phase winding. The synchronous motor is operably shiftable between a charging mode and a driving mode, the synchronous motor allowing electric power to flow bidirectionally between the power source and the battery in the charging mode, and allowing electric power to flow bidirectionally between the battery and the synchronous motor in the driving mode.

A method for periodic deep discharge to extract lithium in silicon-dominant anodes may include providing a cell comprising a cathode, a separator, and a silicon-dominant anode; charging and discharging the cell through a plurality of cycles; and, following the plurality of cycles, performing one or more deep discharge cycles, where each of the one or more deep discharge cycles comprises a cutoff voltage below a normal operating voltage range of the cell. The one or more deep discharge cycles may comprise a C/10 or lower or C/20 or lower discharge current. The one or more deep discharge cycles may include a cutoff voltage of 3.2 V or less, a cutoff voltage of 2.5 V or less, a cutoff voltage of 1.5 V or less, or a cutoff voltage of 1 V or less. The cell may be configured at a higher temperature during the one or more deep discharge cycles.

A backup power supply system is configured to be connected between a power supply and a load. The backup power supply system includes a first port, a second port, a conductive path, a power storage unit, a charging circuit, a discharging circuit, a switch; and a control circuit. The first port is configured to be connected to the power supply. The second port is configured to be connected to the load. The conductive path connects the first port to the second port. The charging circuit is provided in a first path connecting the conductive path to the power storage unit. The discharging circuit is provided in a second path that connecting the conductive path to the power storage unit. The switch is provided in the conductive path between the first port and the charging circuit and between the first port and the discharging circuit, and is configured to make the conductive path electrically conductive or electrically non-conductive. The control circuit is configured to control the switch, the charging circuit, and the discharging circuit.

Systems and methods are described for powering a load, such as a data center, with renewable energy from a renewable energy source. When the renewable energy is greater than a demand of the load, excess renewable energy is used to power a hydrogen production device or charge a battery depending on whether or not the charge level of the battery satisfies an upper threshold charge level, respectively. When the renewable energy is less than the demand of the load and the charge level of the battery satisfies a lower threshold charge level, the load is powered with energy from the battery. When the renewable energy is less than the demand of the load and the charge level of the battery does not satisfy the lower threshold charge level, the load is powered and the battery is charged with energy generated by the hydrogen-based energy generator.