Determination of transfer function self-excited inverters for problems automatic control

The way of obtaining the transfer functions of self-excited inverters using the direct Laplace transform of initial linear differential equations that describe processes in systems of the devices, based on the classic concept of the transfer function is offered. The scheme of the parallel inverter of current is taken for basic option, but this approach is rather general and can be extended not only to group of inverters of current and inverters of voltage, and is fair also for more difficult schemes of the inverters having periodic nature of processes. For receiving transfer functions of the inverter for separate intervals of time of this work periodic function of switching is used.