Patent ID: 8068322

Claim:
An electronic circuit breaker configured to isolate a load from a power-supply unit, comprising: a current sensor configured to be coupled to the power-supply unit; a first switch coupled to the current sensor and configured to be coupled to the load; a switch controller coupled to the current sensor and the first switch, the switch controller configured to be also coupled to and receive power from the power-supply unit and configured to switch OFF the first switch when the current sensor detects an amount of current from the power-supply unit greater than a predetermined amount, the switch controller comprising an anti-latch-up circuit, the anti-latch-up circuit including: a band gap reference including a first cathode and a first anode, and a diode including a second cathode and a second anode coupled in series with the first anode, the anti-latch-up circuit coupled to the power-supply unit and configured to enable the switch controller to maintain the first switch in an ON condition during start-up; and a comparator including: a first negative terminal, a first positive terminal coupled to the first cathode, a first output terminal coupled to the second cathode, and a second switch coupled to the first output terminal and configured to be coupled to the first switch.