Topic The speed regulator for the brush less DC motor is offered.SolutionsThe DC motor, has the stator, the rotor and the electromagnet, as for the electromagnet is near the stator, the rotor generates the permanent magnetic field, the electromagnet is done, as generated the electric field which the police box is done energization furthermore has power source and the adjustment element, with that as for the torque where the adjustment element is connected by power source, adjusts the electric power supply to the electromagnet, while using, occurs by the DC motor in the speed regulator for the brush less DC motor which is adjusted, as for the speed regulator rotary speed of the rotor, position of the rotor (), as a function of load and motor energization of the rotor voltage (V ())It is possible to occur, as for the speed regulator instantaneous torque T () near pole characteristic reversing of the drive magnetic field derivative ()/ basically it is zero at least, in order secondary derivative 2 T () to be compiled under the conditions/2 basically being monotone function, voltage V () of the motor change is set as a function of rotor position . Selective figure Figure 4
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