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There are many kinds of magnetization methods for magnets, and there are also many kinds of magnetization waveforms, such as sine wave and square wave. What I want to tell you today is whether the magnetization waveform of magnets is sine wave or square wave.
Is the magnet magnetization waveform sine wave or square wave good?
Like square wave, it is mainly suitable for occasions where the motor mainly outputs torque, such as power tools.
The sine wave is mainly suitable for occasions that require the motor to run smoothly and with low noise, such as stepper motors.
If the magnet is charged with a square wave, the back EMF of the motor may be a square wave or a sine wave. If the magnet is charged as a sine wave, the back EMF of the motor is mostly a sine wave. Therefore, the magnetizing waveform of the magnet depends on the application of the motor and the driving method. The back EMF is a sine wave, which is suitable for sine wave driving, and the back EMF is a square wave, which is suitable for square wave driving. It is larger than the sine wave driven motor, that is to say, under the same volume, the square wave driven motor will be more powerful than the sine wave driven motor, but the torque output of the square wave motor is less smooth and suitable for power use. The smooth torque output of the wave motor is suitable for servo applications.
The above is the introduction of whether the magnetization waveform of the magnet is a sine wave or a square wave about the magnetization of the magnet.
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