Patent ID: 7781908

Claim:
A power converter circuit of a power converter configured to provide a high power output and a low power output, the power converter circuit comprising: a current sensor adapted to sense the high power output and generate a sensor signal, wherein the high power output voltage is substantially constant; a logic circuit adapted to receive the sensor signal and change the state of a logic signal in response to the high power output exceeding a power threshold; a control circuit in electronic communication with a low power output stage, and configured to receive an overload signal and change states in response to receiving the overload signal, wherein the overload signal is generated in response to an overload condition at the low power output stage; and a controller in electronic communication with the control circuit and the logic circuit, wherein the controller is configured to monitor the state of the control circuit, such that the controller is adapted to inhibit the low power output in response to a change of state of the control circuit while the power converter circuit provides the high power output, wherein the controller is configured to inhibit the low power output in response to a change of state in the logic circuit, and wherein the controller is configured to re-engage the low power output after a lapsing of a predetermined time interval and in response to the logic circuit not indicating the high power output exceeding the power threshold and in response to the control circuit not indicating the presence of the overload signal.