Excitation formula automatic change -over electric controller

The utility model discloses an excitation formula automatic change -over electric controller, first, two powers respectively with mainly, the stand -by power source drops into the excitation drive arrangement of mechanism and links to each other, for its power supply, first, two sampling modules link to each other with first, two powers respectively, are connected with processing module simultaneously, the signal that can accept the electric information into of high pressure for processing module to after receiving processing module's call instruction, with this signal transmission to processing module, processing module carries out assay to the signal, drops into the excitation drive arrangement of mechanism to main and/or stand -by power source when the judgement needs switching power and sends a signal, the latter drops into this signal conversion mechanical transmission's strong electrical signal for drive owner / stand -by power source, owner / stand -by power source drops into mechanical transmission pu