MULTIPOINT INTEGRATING AC VOLTAGE CONTROLLER WITH AUTOMATIC CONTROL CHANNEL BACKUP Russian patent published in 2012 - IPC G06G7/12 G05B11/00 

FIELD: physics; control.

SUBSTANCE: invention relates to controllers. Disclosed is a controller, having series-connected control signal source - input terminal, a first adder, an integrator whose output is connected to the input of the first, second and third relay elements, whose outputs are connected to inputs of the first, second and third comparators, respectively; the output of the first, second and third comparators is connected to the D input of a first, second and third dynamic D flip-flops, respectively, phase A, B and C buses connected to the corresponding inputs of a three-phase load with a neutral terminal through the first, second and third power switches, respectively, whose control inputs are respectively connected to the output of the first, second and third dynamic D flip-flop; the controller also has a second adder whose output is connected to the second input of the first adder; fourth, fifth and sixth comparators whose inputs are connected to phase A, B and C buses, respectively; the outputs of the fourth, fifth and sixth comparator are connected to the C input of the first, second and third dynamic D flip-flop, respectively; wherein the controller also has seventh, eighth and ninth comparators, whose outputs are connected to corresponding inputs of the second adder, and the inputs of the seventh, eighth and ninth comparators are connected to outputs of the first, second and third dynamic D flip-flops, respectively.

EFFECT: possibility of self-backup and high reliability of the controller.

8 dwg, 1 tbl