Device generation control power vehicle power generatrice

The invention relates to a power generator of a power generation control device (1) for a vehicle comprising voltage detecting means (10) for sampling a battery voltage (3); range of service setting means (12) for setting a range for a ratio ON / OFF of a control switching element (7); Service control calculating means (13) for calculating the ratio ON / OFF of the element (7) on the basis of the range of service from a deviation between a target voltage and voltage information from sampling; and drive means for modulating field pulse (14) for controlling the ON / OFF switching of the element (7) at an interval based on the clock signal from the ON ratio / OFF calculated .