Patent ID: 9054527
Filing Date: 2015-06-09
Classification: H02H,H02M,H03F

Abstract:
1. A circuit comprising: a control circuit configured to detect one or more of a short-to-ground condition or a short-to-supply condition at an output node; a first transistor coupled to the control circuit and controlled by the control circuit for selectively applying a feedback current to a gate electrode of a second transistor; a third transistor having a gate electrode coupled to the gate electrode of the second transistor, wherein the third transistor is configured to detect a detected current flowing through the second transistor; and a current mirror coupled to the first transistor and the third transistor, wherein the current mirror produces the feedback current based on the detected current, wherein the control circuit comprises: a fourth transistor comprising a gate node coupled the gate electrode of the second transistor; a first inverter, coupled to a source node of the fourth transistor; a delay element, coupled to the first inverter; and a second inverter, coupled between the delay element and the first transistor.