INTEGRATING SYNCHRONISATION DEVICE Russian patent published in 2011 - IPC H02M1/08 

FIELD: electricity.

SUBSTANCE: integrating synchronisation device represents two serially connecting astable cascades with frequency-width-pulse modulation that operate in the mode of external synchronisation with the grid voltage frequency. The first astable cascade is synchronised directly from the grid voltage, and the second one - by sawtooth voltage, synchronised with a signal from the output of the first astable cascade. The device comprises a grid voltage bus 1, a summator 2, the second integrator 3, the second relay element 4, a gate multivibrator 5, a sawtooth voltage generator 6, the first integrator 7, the first relay element 8 and the unit of "equivalence" logical function 9.

EFFECT: improved accuracy of synchronisation.

4 dwg