Anode protection circuit

The utility model relates to the technical field of circuits, and discloses an anode protection circuit. The circuit comprises a switching circuit, a current detection circuit and a voltage detection circuit. The switching circuit is connected with the negative electrode of the digital cell port, the control end of the single-chip microcomputer is connected with the switching circuit, and the control end of the single-chip microcomputer controls the switching circuit to be turned on or turned off; the switching circuit is connected with the current detection circuit, and the current detection circuit is used for detecting the current of the negative electrode of the digital cell port; the voltage detection circuit is connected with the negative electrode of the digital cell port. The voltage detection circuit is used for detecting the voltage of the negative electrode of the digital cell port. The anode protection circuit can solve the problem that a traditional anode protection circuit is poor in battery pro