FIELD: electricity.
SUBSTANCE: output signal control device comprises an electric generator (100), which comprises a generator winding (103), an excitation winding (104) and a magnetising winding (102). To reduce the output voltage of the generator winding (103) to the specified value, the magnetising current is varied by increasing/decreasing the duty factor of current flow in a switching element (110), connected to the magnetising winding (102). When a unit of zero duty factor detection (2) and a unit of zero duty factor detection (3) identify that the output duty factor with a zero value continues for a preset period of time, a unit of duty factor value increase limitation (4) limits the upper limit value of the duty factor by the specified preset value as the magnetising current increases. Instead of detection of a zero value of the duty factor a unit of duty factor limitation (21a) may used to limit the duty factor with a maximum value determined by voltage of a smoothening capacitor (SC).
EFFECT: invention provides for stabilisation of an output voltage, when a phase-anticipating load is connected to an electric generator.
3 cl, 10 dwg
