Power Module for Common Unmanned System Architecture

Apparatus and methods for controlling unmanned systems (UMSs), such as unmanned aircraft, are provided. A UMS can be provided that includes core systems, auxiliary systems, a payload, and a power system. The power system can provide uninterruptible power for a first power domain that includes the core systems. The power system can provide interruptible power for each of a second power domain and a third power domain. The second power domain can include the auxiliary systems, and the third power domain can include the payload. First circuitry of the power system can prevent a single overcurrent fault in the third power domain from causing an electrical fault in either the first power domain or the second power domain. Second circuitry of the power system can prevent a single overcurrent fault in the second power domain from causing an electrical fault in the first power domain.