Patent ID: 9444331
Filing Date: 2016-09-13
CPC Classification: H02M

Claim Text:
1. A circuit comprising: a switch coupled between a first reference terminal and a first output terminal, wherein the first output terminal is floating when the switch is open; an inductive element coupled between an input terminal and a second output terminal; a diode coupled between the first output terminal and the input terminal; a controller coupled to a control terminal of the switch, wherein the controller is configured to determine a switching signal based on an output signal at the second output terminal and provide the switching signal to the control terminal of the switch; and a sensing circuit coupled to the second output terminal, wherein the sensing circuit comprises a resistive voltage divider coupled between the second output terminal and the first reference terminal; and wherein the controller is further configured to determine the switching signal based on an output of the resistive voltage divider, wherein the switching signal is based on the output of the resistive voltage divider only when the switch is closed.