A system and method for the overcurrent protection in an electric vehicle is illustrated. The system comprises an AC pin, a DC pin, an electric vehicle charging connector, wherein the electric vehicle charging connector comprises a protection circuit, wherein the protection circuit is configured to control a transmission of power through the electric vehicle charging connector, a sensor, wherein the sensor is configured to detect an output current, and a controller communicatively connected to the sensor. The controller is configured to detect an overcurrent output as a function of the output current and trip the protection circuit as a function of the overcurrent output.

A power supply system with a large number of battery modules, wherein each battery module has a first electrical connection and a second electrical connection, via which the battery modules are connected in series in an interconnection branch of the power supply system. Each battery module also has an accumulator which can be connected via a bridge circuit of the battery module to the first electrical connection and the second electrical connection, and to a charging path via which the power supply system can be charged, and to a discharging path via which the power supply system can deliver electrical power to a connected consumer. The power supply system has a switching component to which the charging path, the discharging path and the interconnection branch are connected, and wherein the switching component can connect the charging path and/or the discharging path electrically conductively to the interconnection branch.

A method for charging a battery set of an autonomous vehicle including: determining charging requirements of the battery set of the autonomous vehicle via a communication from the autonomous vehicle to a charging station, in response to the communication from the autonomous vehicle, connecting a plurality of batteries of the charging station in a first combination to match the charging requirements of the battery set of the autonomous vehicle; and charging the battery set of the autonomous vehicle using the plurality of batteries of the charging station in the first combination.

Embodiments of a system and method for controlling a device charging on a wireless charger are generally described herein. A method may include disabling, in response to determining that the device is currently charging on the wireless charger, haptic feedback at the device, determining whether the device is in a night mode or a day mode, in response to determining that the device is in the night mode and currently charging on the wireless charger, disabling notifications of the device, and enabling, in response to determining that the device is in the day mode, the haptic feedback and the notifications when the device has been removed from the wireless charger.

A respiratory therapy device generates a flow of breathable gas for therapy. The apparatus may include a flow generator in a housing to generate the breathable gas flow. The flow generator may have an operating voltage for such operations. The device may include a battery pack that is engageable with the housing. The battery pack may be configured to power the flow generator and may include a stand-by circuit configured to switch between stand-by and operating modes. The stand-by circuit may be configured to provide a stand-by operations voltage while in the stand-by mode that is less than an operating voltage of the flow generator and may be configured to detect current demand of the flow generator with the stand-by operations voltage while in stand-by mode such as for enabling an increase voltage from the battery pack to produce the operating voltage in the operating mode for the flow generator.

The present disclosure provides a charging method, device, and system. The charging device includes a voltage regulation circuit, and can charge a charged device through voltage step-down or voltage step-up. In addition, the charging device and a charged device can transfer statuses of a circuit and a battery through a change of a switch status, so that the charging device can regulate a charging voltage and/or a charging current based on the statuses of the circuit and the battery.

A secondary battery protection circuit for controlling charge and discharge using a switching circuit to protect a secondary battery from temperature is provided. The switching circuit is configured to be provided in a charge-and-discharge path between the secondary battery and an external device. The secondary battery protection circuit includes a detection terminal configured to be electrically connected, via a resistor, to between the switching circuit and the external device. The secondary battery protection circuit includes a first terminal configured to be electrically connected to a temperature detection terminal of the external device. The secondary battery protection circuit includes a second terminal to which a temperature sensitive element is configured to be electrically connected, the temperature sensitive element having a characteristic value varying in accordance with a change in temperature of the secondary battery.

The present disclosure relates to a charging device. By providing a charge-enabled pin and an engage-enabled pin with different lengths in the charging interface of the charging device, the engage-enabled pin is firstly in contact with a battery when charging. At this time, a charging management circuit controls an LLC half-bridge resonant power supply to soft start. A third end of the charging management circuit outputs a signal to drive a first switch to be turned on, and the output end of the LLC half-bridge resonant power supply charges the battery, and charging soft start and zero-voltage connection are achieved. During the unplugging process, the charge-enabled pin is firstly removed from the battery, and zero-current disconnection can be achieved when unplugging the other pins of the charging interface.

Discussed is a battery system including a battery; a first main relay connected between one electrode and a first output terminal of the battery; a pre-charge relay connected to the first main relay in parallel; a second main relay connected between another electrode and a second output terminal of the battery; and a battery management system controlling charging and discharging of the battery, and controlling the first main relay, the pre-charge relay, and the second main relay, wherein the battery management system opens the first main relay, the pre-charge relay, and the second main relay when a received power voltage is a predetermined reference voltage or less, closes the pre-charge relay and the second main relay to execute a pre-charge when the power voltage is higher than the reference voltage, and closes the first main relay after the pre-charge is completed.

A system for restricting power to a load to prevent engaging a circuit protection device for an electric aircraft includes an energy source. The energy source is communicatively coupled to a load, wherein the load includes a portion of a propulsion system. The system includes sensors configured to sense an electrical parameter. The system includes an aircraft controller communicatively connected to the energy source, wherein the aircraft controller is configured to receive an electrical parameter, compare the electrical parameter to a current allocation threshold, detect that the electrical parameter has reached a current allocation threshold, generate a current allocation threshold notification as a function of the detection, wherein the current allocation threshold notification indicates that the electrical parameter has reached the current allocation threshold.