METHOD TO CONTROL PULSE STABILISER OF DC VOLTAGE Russian patent published in 2012 - IPC G05F1/56 

FIELD: electricity.

SUBSTANCE: method to control an AC voltage pulse stabiliser based on pulse-length modulation of a control signal with a regulating element, consisting in the fact that the current value of the stabilised voltage is measured, the measured value is compared with the permanent reference voltage, and the working frequency of the pulse-length modulated signal synchronisation is varied based on the comparison result, besides, if the regulation depth is in the range of 1:8-1:15, the working frequency of the pulse-length modulated signal synchronisation is reduced six times, preserving at the same time the maximum duration of the saw-toothed signal, i.e. increasing duration of the pause between saw-toothed pulses by 5 periods of the nominal working frequency of a PLM signal, by blocking of 5 pulses of the synchronisation signal and letting through each sixth pulse.

EFFECT: expanded control range towards low output voltages.

2 dwg