|ABB Inc. Patent applications|
|Patent application number||Title||Published|
|20150253359||DC BUS VOLTAGE MEASUREMENT CIRCUIT - A voltage measuring device includes an input configured to be coupled to a secondary of an inductive coupling of a DC to DC voltage converter. A switch coupled to the input forms a discharge path parallel to a sampling capacitor dependent on the voltage at the input equaling or exceeding a first voltage threshold and independent of an output voltage at the output of the device. The sampling capacitor is coupled to the output. A rectifier in series with the sampling capacitor is biased to conduct upon the input voltage, minus the output voltage, equaling or exceeding a second voltage.||09-10-2015|
Patent applications by ABB Inc.