Patent ID: 9541948
Date: 2017-01-10
CPC Classifications: G01R,G04G,G06F

Claim:
1. A detecting circuit of a Real-Time Clock (RTC) battery, comprising: a power capturing unit coupled to a power supply output terminal of the RTC battery, receiving a detecting-controlled signal and capturing a power supply signal from the power supply output terminal in response to the detecting-controlled signal, wherein the power capturing unit provides the power supply signal when the detecting-controlled signal having high level, and the power capturing unit stops to provide the power supply signal when the detecting-controlled signal having low level; a voltage dividing unit coupled to the power capturing unit and configured to divide the power supply signal captured by the power capturing unit to generate a dividing signal; and an output unit coupled to the voltage dividing unit to receive the dividing signal, wherein the output unit generates a detecting result signal related to a configuration status of the RTC battery according to the dividing signal, wherein the voltage dividing unit comprises: wherein the output unit comprise: wherein the power capturing unit comprises: