Overcurrent detection using dissimilar biasing of diode networks

A circuit for detecting an overcurrent condition in a load, the circuit comprising:

• a current-sense resistor having first and second terminals, the current-sense resistor in series with the load, the current-sense resistor and the load provided power by a power source;
• a first diode network having first and second terminals, the first terminal of the first diode network connected to the first terminal of the current-sense resistor and the second terminal of the diode network conductively coupled to a first biasing circuit;
• a second diode network having first and second terminals, the first terminal of the second diode network connected to the second terminal of the current-sense resistor and the second terminal of the diode network conductively coupled to a second biasing circuit,
• wherein the first and second biasing circuits are configured to provide current to the first and second diode networks such that a voltage difference between the second terminals of the first and second diode networks is of a first polarity during normal current conditions of the load, and the voltage difference between the second terminals of the first and second diode networks is of a second polarity during overcurrent conditions of the load.