Square-wave brushless motor controller driver compared with sine wave driving the advantages and disadvantages

square-wave brushless motor controller drive compared with sine wave driving the advantages and disadvantages of the square wave drive of the main advantages: (1) square wave drive the rotor position sensor structure is simple, the cost is low; 2 position signal only make logic processing, the current link structure is relatively simple, servo drive overall cost is low; (3) effective high material utilization, servo motor under the condition of equal effective materials and square-wave works of motor output torque can be increased about 15%. Square wave drive the main disadvantages: (1) the large torque ripple; 2 high-speed work, the deformation of rectangular wave will occur large current, can lead to reduced torque; (3) the continuous rotation of the stator magnetic field, the additional loss of the stator core is increased. However, a good design and control of the square wave driving torque ripple of brushless servo motor controller of brushless dc servo motor controller can achieve a level. Torque ripple can use a high gain speed closed-loop control to suppress, to obtain good performance at low speed, brushless motor controller makes the speed of the servo system is also 1:10 000. It has a good cost performance, for brushless dc servo motor controller system adjustment experience, are more likely to accept this kind of square wave drive servo system. So the driving mode of servo motor controller and the servo driver is still industrial robots, numerical control machine tools, all kinds of automation machinery one of a kind of ideal driving element. http://www。 tcmotor。 Com/foshan electrical and mechanical equipment co. , LTD. , brushless motor controller, brushless dc motor controller, dc servo motor controller, planetary reducer, brushless drive, electrical and mechanical, foshan electrical and mechanical equipment co. , LTD