Patent attributes
A system includes a first switch, an amplifier, a second switch, and a capacitor. The first switch is electrically coupled between a first reference voltage and a node. The amplifier has a first input, a second input, and an output, the amplifier to receive a second reference voltage on the first input and a sample voltage on the second input. The second switch is electrically coupled between the output of the amplifier and the second input of the amplifier. The capacitor is electrically coupled between the second input of the amplifier and the node. The first switch and the second switch are closed to initialize the node to the first reference voltage and to initialize the amplifier in unity-gain configuration. The first switch and the second switch are opened to detect a leakage current by sensing a change in the sample voltage.
