Patent ID: 9071153
Filing Date: 2015-06-30
Classification: H02M

Abstract:
1. An integrated circuit controller for a power converter, the controller comprising: a control coupled to control switching of a switch to regulate an output of the power converter; a sensor coupled to receive a signal from a terminal of the integrated circuit controller, wherein the signal from the terminal is representative of an input voltage of the power converter during at least a portion of an ON state of the switch, and is representative of an output voltage of the power converter during at least a portion of an OFF state of the switch, wherein the sensor is configured to sample the signal from the terminal during the portion of the ON state to generate a first sample signal and to sample the signal from the terminal during the portion of the OFF state of the switch to generate a second sample signal; and a fault detector coupled between the sensor and the control, wherein the fault detector is coupled to detect a fault condition of the power converter in response to either the first or the second sample signal, wherein the control is coupled to inhibit the switching of the switch to reduce a power output level of the power converter in response to the fault detector detecting the fault condition.