FIELD: electrical engineering.
SUBSTANCE: invention relates to electrical engineering and can be used to automatically maintain the magnitude of the generated direct current voltage with variations in the magnitude of the load current, for example, with continuous charging of an electric vehicle battery. Automatic control system for a direct current generator comprises a source of rotation of the direct current generator, a battery and a voltage regulator. Source of rotation comprises two magnetic toroids coaxially oriented by the same magnetic poles with opposite curved annular magnetization, one of which is fixed to the rotor of the direct current generator, and the other one, in its mechanical supply device, is fixed to a rotating magnetic toroid with an adjustable magnetic gap in a function of the battery charge current. Voltage regulator is configured as a traction electromagnet with two solenoidal windings – a power one connected in series between the direct current generator and the battery, and control one, connected to the output of the direct current amplifier, and a ferromagnetic core, on one side mechanically connected by a rod with a non-rotating magnetic toroid, installed together with elements of the traction electromagnet in a guide non-magnetic tube, and on the other – with a stop spring, the other end of which is connected to an adjusting screw for adjusting the voltage at the output of the direct current generator when there is no load. Control signal at the input of the direct current amplifier is formed by comparing the voltage on the battery with the reference voltage followed by integrating the differential voltage or filtering it in an inertial RC element.
EFFECT: automatically maintaining the generated direct current voltage while varying the charging current of the battery continuously over time, mainly when the vehicle engine is shut off.
1 cl, 2 dwg
