Proposal of power supply monitoring unit with CANaerospace protocol

Recent aircraft include a sea of electric and electronic systems. These systems are very important to ensure right function of other systems and whole aircraft. Every electric facility needs suitable power supply unit. Because of that power supply unit is most important for electric systems, pilot of the aircraft or operator of the unmanned air vehicle need to know status of power supply unit. The paper is aimed to the proposal of power supply monitoring unit. Voltage measuring is quite simple, so the paper is devoted to current measuring by modern technology, to process measured values, to transmit them through bus CAN (Controller Area Network) with CANaerospace protocol to aircraft cockpit and to display to the pilot or other systems.