The meaning of the brushless motor controller KV value

by:Hoprio     2020-07-19

the brushless motor controller KV value significance of the brushless motor controller has a lot of key parameters, the KV value is one of them, and join with you today to explore the significance of the brushless motor controller KV value. Brushless motor controller KV value defined as RPM/V, means the input voltage increase 1 KV, brushless motor controller speed value of the idle speed increase. From the point of this definition, we can know, brushless motor controller voltage input and idle speed controller is a strict linear proportional relationship. Brushless motor controller KV value not only explain the meaning of a strict linear proportional relationship speed and the voltage controller, also for the performance of the motor controller has an open sex said. Brushless motor controller used mostly have the feeling of customers, with level ( Outside diameter) Brushless motor controller, the outer rotor and inner rotor current compare, will find external rotor torque motor controller, to some 'hard', inner rotor torque motor controller slightly smaller, 'soft' to some, a look at the motor controller parameters, exterior rotor motor controller brushless motor controller KV value of more than 800, more than 1000 to more than 2000 inner rotor motor controller. Look again at speed, the rotating speed of rotor motor controller was obviously higher than that of external rotor motor controller. These features are associated with brushless motor controller KV value, according to the definition of a brushless motor controller KV value to explain, the idling speed brushless motor controller, is brushless motor controller KV value multiplied by the input voltage, this also explains why the speed of the inner rotor motor controller is higher than the exterior rotor brushless motor controller. For torque characteristics, brushless motor controller KV value a sense embodies the torque motor controller performance, exterior rotor motor controller, for one, no-load speed of the motor controller is ordinary, but add load ( Such as chain wheel) After its speed down to 60% no-load speed 70%, but with the same level within the rotor motor controller to test, the speed can only load to the no-load speed of 30% 40%, which obviously reflects the torque characteristics of the two motor controller, inner rotor motor controller with load capacity is relatively low, in order to satisfy the torsion power, inner rotor motor controller is necessary to slow down, increase by electric current, in the case of constant voltage, output power brushless motor controller is increased. With series with the dimensions of the brushless motor controller, brushless motor controller KV value can also be the difference between the characteristics of the motor controller, such as a brushless motor controller is 1860 KV values, a brushless motor controller KV value is 2075, the first torque of motor controller is larger, the peak current work is relatively small; The second motor controller of some high speed, but the torsion properties is worse than the first motor controller to, peak current will be larger.
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