FOUR-EIGHT CYCLE DEVICE FOR FOUR-PHASE STEP MOTOR CONTROL Russian patent published in 2014 - IPC H02P8/34 H02P8/36 

FIELD: electricity.

SUBSTANCE: mode of automatic diagnostic of single failures of both the logic and the power part of a device is implemented in the device. For this purpose the device is equipped by the fourth multiplexer, a five-input convolution circuit for module two, amplifiers with threshold power transducers in each phase. Introduction of automatic diagnostics mode allows for timely elimination of device failures thus improving its operational efficiency.

EFFECT: expansion of functionality due to the provision of available switching and idle modes and operation of a motor in mode of alternating cycling controlled by busbars of switching mode selection.

1 dwg, 2 tbl