Patent ID: 9391501
Filing Date: 2016-07-12
CPC Classification: H02M,H03K,H05B,Y02B

Claim Text:
1. A control circuit configured to re-charge supply voltage provisioning means and configured to control the switching state of a power switch; wherein the supply voltage provisioning means are configured to provide a supply voltage to a gate of the power switch; the control circuit comprising a control switch configured to charging circuitry configured to enable a charging current flowing from the output of the power switch to the supply voltage provisioning means and configured to disable a current flowing from the supply voltage provisioning means to the output of the power switch, when an input of the charging circuitry is coupled to the output of the power switch and when an output of the charging circuitry is coupled to the gate of the power switch and to the supply voltage provisioning means; wherein the charging current is derived from a current flowing through an input-to-output capacitance arranged between an input and the output of the power switch.