NOVELTY - The apparatus has two output windings (10, 11) wound in a stator. An output winding side solenoid coil (141) is arranged outside the stator and connected in series with the output windings. A control side solenoid coil (142) is connected in series with the output winding side solenoid coil and positioned outside the stator. A controller (18) controls an electric power generation voltage to a set voltage in response to a detection signal from a voltage sensor, detects the voltage generated in the output windings and controls a control switch (12).    USE - Control apparatus for setting low voltage in a permanent-magnet-type generator that is utilized in an electric vehicle. Can also be used in a motor vehicle, a wind-powered generator, a hybrid vehicle and an energy regenerative power generation machine of a lift.    ADVANTAGE - The apparatus is provided with an output side winding comprising the output windings and the output winding side solenoid coil and the control side winding comprising the control side solenoid coil, where the output side windings and the control side winding are connected in series, so that output voltage is controlled uniformly by using a drooping characteristic of the whole winding number, thus increasing inductance without increasing winding number of the output side winding and the control side winding and controlling suspending-down electric current, and hence utilizing voltage control property by counter electromotive force of a big winding number of the windings. The voltage of the output side winding is set at an edge part of the output winding side solenoid coil, so that voltage fall can be made instantaneously and fixed voltage can be maintained, thus suppressing the raise or fall of instantaneous voltage and controlling desired voltage. The output winding side solenoid coil is positioned outside magnetic flux of a rotor and a stator position is not linked to the control side solenoid coil, so that the inductance is increased and controls lowering of the electric current. The apparatus is provided with a neutral point switch, which can be intermitted in the electric current flowing into a neutral point to connect a part of starting winding in middle of the winding number of the output winding, so that a position of the neutral point can be selectively changed, thus suppressing voltage, which rises with improvement in rotational speed, and hence extending an area of application rotation speed.    DESCRIPTION OF DRAWING(S) - The drawing shows a circuit diagram of a control apparatus of a permanent-magnet-type generator.    Output windings (10, 11)    Control switch (12)    Controller (18)    Output winding side solenoid coil (141)    Control side solenoid coil (142)