Battery control circuitry, battery control method, and electric apparatus

An electric apparatus, comprising:

• a battery control circuitry, including
• a charging interface, a switch circuit, and a first battery pack, the switch circuit including a first auxiliary switcher, a second auxiliary switcher, and a main switcher;
• a second battery pack, wherein a positive electrode of the second battery pack is connected to a negative electrode of the first battery pack;
• and
• a control circuit, configured to:
• in response to detecting that the charging interface receives a charging signal from a low-voltage platform, control the switch circuit to switch to a first connection state to form a first loop for charging a target battery pack, the target battery pack being the first battery pack or the second battery pack, by sequentially connecting
• the first auxiliary switcher, the main switcher, and the second auxiliary switcher, wherein the first auxiliary switcher is configured to, in response to a first trigger signal received from the control circuit, conductively connect an output end of the main switcher to the target battery pack, wherein the first trigger signal is sent in response to the control circuit detecting the charging signal from the low-voltage platform;
• the main switcher is configured to turn on under triggering of the control circuit after the first auxiliary switcher is conductively connected, so as to connect a positive electrode of the charging interface to the output end of the main switcher;
• and
• the second auxiliary switcher is configured to turn on under triggering of the control circuit after the main switcher is conductively connected, so as to connect a negative electrode of the target battery pack to a negative electrode of the charging interface.

A battery control method, comprising:

• providing a battery control circuitry, including
• a charging interface, a switch circuit, and a first battery pack, the switch circuit including a first auxiliary switcher, a second auxiliary switcher, and a main switcher;
• a second battery pack, wherein a positive electrode of the second battery pack is connected to a negative electrode of the first battery pack;
• and
• a control circuit, configured to:
• in response to detecting that the charging interface receives a charging signal from a low-voltage platform, control the switch circuit to switch to a first connection state to form a first loop for charging a target battery pack, the target battery pack being the first battery pack or the second battery pack, by sequentially connecting the first auxiliary switcher, the main switcher, and the second auxiliary switcher, wherein the method further includes
• in response to detecting that the charging interface receives the charging signal from the low-voltage platform, controlling the switch circuit to switch to connect in series to the target battery pack and the charging interface to form the first loop, so as to charge the target battery pack, wherein the target battery pack is the first battery pack or the second battery pack;
• or
• in response to detecting that the charging interface receives a charging signal from a high-voltage platform, controlling the switch circuit to switch to connect in series to the charging interface, the first battery pack and the second battery pack to form a second loop, so as to charge the first battery pack and the second battery pack.