STABILISED ELECTRIC DRIVE Russian patent published in 2012 - IPC H02P7/14 

FIELD: electricity.

SUBSTANCE: invention relates to electric engineering and may be used in systems of transmission and reproduction of information, and also in sight and searching and scanning systems. A unit for comparison of frequencies of a stabilised electric drive is arranged in the form of a comparison circuit, a register, a pulse counter, a high-frequency generator and an OR circuit. The new circuit of the frequency comparison unit makes it possible to do anticipatory unlocking of a pulse frequency-phase discriminator into a proportional mode of operation, at the moment when the error value by angular speed Δω_k becomes less than the value optimal by time of synchronisation.

EFFECT: reduced time of electric drive synchronisation in a wide range of working frequencies of rotation.

3 dwg