A system for controlling charging and discharging of a battery includes a charging and discharging switch configured to perform a switching operation for the charging and discharging of a battery. An analog front end (AFE) unit is configured to detect a voltage of the battery and to be stopped after transmitting a specific signal when detecting a voltage having a certain voltage parameter value or more. A main controller unit (MCU) configured to turn off the charging and discharging switch when receiving the specific signal from the analog front end unit.

A charging system includes a charging input interface, an inductor, a first switch, a second switch, a first voltage acquisition circuit, and a control circuit. The charging input interface is connected to the inductor, which is connected to the first switch and the second switch. The second switch is configured for electrical connection with an energy storage power supply. The first voltage acquisition circuit is connected to the second switch and configured to detect the first voltage output by the charging system in real time. The control circuit cyclically controls the switch on/off time of the first switch based on the first voltage. During the charging process of the charging system, when the first voltage is less than the first preset voltage value, the control circuit controls the first switch to conduct and starts cyclic control. The state of the first switch is opposite to that of the second switch.

A charging system includes a charging input interface, an inductor, a first switch, a second switch, a first voltage acquisition circuit, and a control circuit. The charging input interface is connected to the inductor, which is connected to the first switch and the second switch. The second switch is configured for electrical connection with an energy storage power supply. The first voltage acquisition circuit is connected to the second switch and configured to detect the first voltage output by the charging system in real time. The control circuit cyclically controls the switch on/off time of the first switch based on the first voltage. During the charging process of the charging system, when the first voltage is less than the first preset voltage value, the control circuit controls the first switch to conduct and starts cyclic control. The state of the first switch is opposite to that of the second switch.

A charging system includes a charging input interface, an inductor, a first switch, a second switch, a first voltage acquisition circuit and a control circuit. The charging input interface is connected to the inductor, which is connected to the first switch and the second switch. The second switch is configured for electrical connection with an energy storage power supply. The first voltage acquisition circuit is connected to the second switch and configured to detect the first voltage output by the charging system in real time. The control circuit cyclically controls the switch on/off time of the first switch based on the first voltage. During the charging process of the charging system, when the first voltage is less than the first preset voltage value, the control circuit controls the first switch to conduct and starts cyclic control. The state of the first switch is opposite to that of the second switch.

A charging system includes a charging input interface, an inductor, a first switch, a second switch, a first voltage acquisition circuit, and a control circuit. The charging input interface is connected to the inductor, which is connected to the first switch and the second switch. The second switch is configured for electrical connection with an energy storage power supply. The first voltage acquisition circuit is connected to the second switch and configured to detect the first voltage output by the charging system in real time. The control circuit cyclically controls the switch on/off time of the first switch based on the first voltage. During the charging process of the charging system, when the first voltage is less than the first preset voltage value, the control circuit controls the first switch to conduct and starts cyclic control. The state of the first switch is opposite to that of the second switch.

A charging system includes a charging input interface, an inductor, a first switch, a second switch, a first voltage acquisition circuit, and a control circuit. The charging input interface is connected to the inductor, which is connected to the first switch and the second switch. The second switch is configured for electrical connection with an energy storage power supply. The first voltage acquisition circuit is connected to the second switch and configured to detect the first voltage output by the charging system in real time. The control circuit cyclically controls the switch on/off time of the first switch based on the first voltage. During the charging process of the charging system, when the first voltage is less than the first preset voltage value, the control circuit controls the first switch to conduct and starts cyclic control. The state of the first switch is opposite to that of the second switch.

An intelligent rechargeable battery pack having a battery management system for monitoring and controlling the charging and discharging of the battery pack is described. The battery management system includes a memory for storing data related to the operation of the battery, and the battery management system is also configured to communicate the data related to the operation of the battery to other processors for analysis.

The present description concerns a circuit of protection against overvoltages appearing during a protection against overcurrents comprising: a first diode and a second diode having their cathodes coupled to a first node; a first transient voltage suppressor diode having its cathode coupled to a second node and having its anode coupled to the anode of the first diode; a thyristor having its cathode coupled to the anode of the second diode, having its anode coupled to the second node, and having its gate coupled to the anode of the first diode; and a switch having a first terminal coupled to the first node.

A control system for charging an aircraft, comprising: a battery pack, an input device configured to enable a user to select between different charging modes, two main contactors connecting the battery pack to an electric propulsion unit (EPU) load and an auxiliary load, a EPU load contactor connecting the battery pack to the EPU load and a controller configured to receive the selected charge mode and control the contactors, keep the two main contactors open upon receiving a user selection to charge in a first mode, close the two main contactors and keep an EPU load contactor open upon receiving a user selection to charge in a second mode, and close the two main contactors and the EPU load contactor upon receiving a user selection to charge in a third mode.

A circuit includes three battery groups. A first battery group is coupled to an input port. A negative electrode of a second battery group and a third battery group that are connected in parallel to each other is grounded, and a positive electrode of the second battery group and the third battery group is coupled to the first battery group through a switch. A negative electrode of the first battery group is further grounded through a switch. In addition, the input port is coupled to an output port through a buck circuit, the first battery group and the second battery group that are connected in parallel are coupled to an output of the buck circuit through a switch, and the first battery group is coupled to the output of the buck circuit through another switch. The output port is coupled to the output of the buck circuit.