Patent ID: 9257965
Filing Date: 2016-02-09
CPC Classification: H02M,H03K,H05B,Y02B

Claim Text:
1. A control circuit configured to control a switching state of a power switch; wherein a first port of the power switch is coupled to an inductor; wherein the control circuit is configured to be coupled to a control port of the power switch; wherein the control port of the power switch is different from the first port of the power switch; the control circuit comprises a control unit configured to generate a control signal for controlling the switching state of the power switch; wherein the control signal is to be provided to the control port of the power switch; and the control circuit comprises free-wheeling sensing means configured to detect a change of a voltage at a measurement port of the power switch; wherein the measurement port of the power switch is different from the first port of the power switch; and wherein the change of the voltage at the measurement port is indicative of free-wheeling of the inductor.