Liquid leakage detection circuit, system, method and apparatus, device, and battery management system

Abstract

A liquid leakage detection circuit including: a sampling circuit, the sampling circuit having an output end connected to an input end of an excitation source circuit and used for sending a control signal to the excitation source circuit; and the excitation source circuit , the excitation source circuit having an output end connected to a signal detection circuit and used for generating an excitation signal on the basis of the control signal and sending the excitation signal to the signal detection circuit, and the excitation signal being a periodic pulse signal. The sampling circuities further used for collecting a liquid leakage state signal of a battery pack in the signal detection circuit, wherein the liquid leakage state signal is generated in response to the excitation signal, so that liquid leakage detection for the battery pack can be achieved. A liquid leakage detection system and a battery management system is disclosed.

Dependencies are inferred from the claim text.