Patent ID: 8098696
Filing Date: 2012-01-17
Classification: G01R,H03K

Abstract:
1. A multiplexer configured to detect leakage current, the multiplexer comprising: a plurality of input channels, each operably connectable to one of a plurality of input devices; a common output channel connected to each of the plurality of input channels; a plurality of bus lines connecting each of the plurality of input channels to the common output channel; a plurality of switches associated with each input channel, each of the plurality of bus lines including one of the plurality of switches, wherein selective control of the plurality of switches determines which of the plurality of input channels is provided on the common output channel; and at least one leakage sense resistor connected to one of the plurality of bus lines, wherein the plurality of bus lines and switches are configured to provide at the common output channel sensed data from the input device associated with the selected input channel and a measured voltage across the leakage sense resistor indicative of a leakage current associated with the selected input channel.