In certain applications, the system needs to provide uninterrupted sources of power. If one of the input power supplies were to fail, the system needs to automatically switchover to a backup power source without interrupting normal operation. In this example, two scenarios will be demonstrated. The first example will prioritize a 12-V main supply, and switchover to a 5-V auxiliary supply whenever the 12 V is not present. The second example will showcase power redundancy with two 12-V supplies. If one 12-V supply were to fail, the device will seamlessly switchover to the backup supply.