Definition of target impedance admissible values of independent power supply system

It is described definition method of target impedance admissible values of independent power supplie system at early design stages in conditions of the limited information about power consumption channels. It is conducted research of dependences of an entrance impedance of the power consumption channel with secondary power supply from its parameters with using channel models in Pspice format. It is offered the way of easing of requirements to a target impedance of power supplies system.