STABILISED ELECTRIC DRIVE Russian patent published in 2016 - IPC H02P7/292 

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering and can be used in systems for transmitting and reproducing information, for example in drive of video recording devices and target search and scanning systems. Stabilized electric drive includes determination of angular velocity error absence lock, single-bit counter, analogue-to-digital converter, computing device, comparator, second switch, second adder, three “AND” elements, two “OR-NOT” elements, two “NOT” elements, memory unit, frequencies comparator unit. First input of comparator unit is connected to frequency-determining unit, second input is connected to output to pulse sensor of rotation frequency, and output is connected to control input of non-contacting key. Input unit for determining absence of mismatch at angular velocity and main input of second switch are connected to output of differentiating unit; output of said unit is connected to control input of storage device and to input of single-bit counter, which output is connected to first inputs of first and second “AND” element, to third input of frequency-phase discriminator and through first “NOT” element to first input of third “AND” element, which second input is connected to additional output of frequency-phase discriminator, and output is connected to control input of second key, which output is connected to first input of first adder, which second input is connected to output of first “OR-NOT” element, which first input is connected to output of second “OR-NOT” element, which first input is connected to main output of frequency-phase discriminator, and second input is connected to output of first “AND” element, which second input together with input of second “NOT” element is connected to output of comparator, which input is connected to output of second adder. Positive input of adder is connected to output of analogue-to-digital converter, and negative input is connected to output of storage device, which main input through computer is connected to output of analogue-to-digital converter, which input is connected to output of first “OR-NOT” element, which second input connected to output of second “AND” element, which second input is connected to output of second “NOT” element.

EFFECT: high efficiency during synchronisation mode, shorter time for synchronisation and reduced value of electric drive re-adjustment.

1 cl, 2 dwg