Abstract: The present disclosure relates to a computing-in-memory array, chip and electronic device. The said device comprises: a computing-in-memory array comprising at least one computing-in-memory cell, where said computing-in-memory cell comprises the first switch, the second switch, the third switch, the fourth switch, the coupling capacitor, the first bitline, the second bitline, the third bitline, the first wordline, the second wordline and the third wordline; a control module connected to said computing-in-memory array, which controls the voltages of each wordline and bitline to read and write data through said computing-in-memory array, or to perform computing-in-memory operations.

Abstract: A multifunctional portable energy storage device, particularly, an energy storage device with functions of electric quantity storage, AC and DC charging, electric quantity detection, and DC boost output is provided, which is applicable for AC and DC bidirectional charging. The energy storage device includes an electrical core, a charging interface, and a powering interface. An external power supply charges the electrical core through the charging interface, and the electrical core supplies power to an external device through the powering interface. The energy storage device further includes an AC/DC converter, a control unit, and a charging management unit. The charging interface is connected to an input terminal of the AC/DC converter. An external AC current is converted into a DC current by the AC/DC converter and then input to the charging management unit.