A voltage division circuit parameter detection circuit and method and an electric power measuring chip

The invention belongs to the technical field of voltage detection and provides a voltage division circuit parameter detection circuit comprising a voltage division circuit coupled with a first signalsource with a first frequency, wherein the voltage division circuit comprises a first voltage divider, a second voltage divider and a third voltage divider which are connected in series, the second voltage divider is connected with a voltage measuring module in parallel. The detection circuit also comprises a second signal source and a third signal source. The voltage measuring module is used fordetecting a first signal component of a second frequency on the second voltage divider under the condition that only a first switch is turned on, detecting a second signal component of a third frequency on the second voltage divider under the condition that only a second switch is turned on, and determining whether the voltage parameters of the voltage division circuit are normal. 本发明属于电压检测技术领域，提供了种分压电路参数的检测电路，包括与具有第频率的第信号