Abstract: A voltage detection circuit comprises a plurality of even-number voltage detection nodes, at least one odd-number voltage detection node, a voltage differential generation circuit, a selection circuit and a computing circuit. The selection circuit is for controlling the coupling relationship between the voltage differential generation circuit and the even and odd-number voltage detection nodes, so that the voltage differential generation circuit generates a voltage differential between the nodes. The computing circuit knows a voltage of a first even-number voltage detection node being as a reference voltage or obtains the voltage of the first even-number voltage detection node on the basis of the reference voltage, and respectively obtains a voltage of the nodes on the basis of the voltage differential between two adjacent nodes and the obtained voltage of a first even-number voltage detection node.

Abstract: A voltage detection circuit comprises a plurality of even-number voltage detection nodes, at least one odd-number voltage detection node, a voltage differential generation circuit, a selection circuit and a computing circuit. The selection circuit is for controlling the coupling relationship between the voltage differential generation circuit and the even and odd-number voltage detection nodes, so that the voltage differential generation circuit generates a voltage differential between the nodes. The computing circuit knows a voltage of a first even-number voltage detection node being as a reference voltage or obtains the voltage of the first even-number voltage detection node on the basis of the reference voltage, and respectively obtains a voltage of the nodes on the basis of the voltage differential between two adjacent nodes and the obtained voltage of a first even-number voltage detection node.

Abstract: A charge/discharge protection circuit adapted in an electronic apparatus and a discharge protection method are provided. The charge/discharge protection circuit comprises a positive electrode, a ground for discharging, a switch module, a battery module, a negative electrode for charging, a sensing device and a control module. The battery module is electrically connected to the switch module and the ground to form a discharging path. The switch module is electrically connected to the positive electrode. The sensing device is electrically connected to the battery module and the negative electrode to form a charging path. The sensing device passively disconnects the charging path when the charging path is abnormal. The control module actively turns the switch open when the discharging path, the charging path or the battery module is abnormal.