DEVICE AND METHOD OF MOTOR CONTROL Russian patent published in 1997 - IPC

FIELD: control systems. SUBSTANCE: device has power supply source, pulse signals pickup connected with pulse shaper (interface), operative control unit connected with interface for receiving control signals whose output and output of pulse shaper are connected, respectively, to first and second inputs of microprocessor-type data processing unit to third input of which power supply source is connected. Output of data processing unit is connected to motor power supply input. Device has additional starting programming pushbutton recording reference points and connected to fourth input of microprocessor-type data processing unit. Pulse signals pickup is made in form of gear wheel installed for rotation in proportion to movement of door whose gear circumference is located close to inductive unit on field transistor detecting passage of wheel teeth by inductive coupler. Motor supply source has bidirectional triode thyristor unit or groups of bidirectional triode thyristors acting to reverse motor power supply phases. EFFECT: enlarged operating capabilities. 10 cl, 3 dwg