Abstract:

An important part of the aerocraft power supply system,the airborne secondary power supply is an electric equipment that changes primary power supply into another form or standard to satisfy the demand of different airborne electric equipments.For the airborne secondary power supply to handle and save the important data parameters timely and effectively in power down,this paper proposes a circuit according to actual user demands,adjusting the parameter to satisfy the time of different processing data to meet the power supply requirements precisely and timely.

Key words: airborne secondary power supply;redundancy power supply;counter;default detection