Motor controller with data bit expansion mechanism

A motor controller with a data bit expansion mechanism, including:

• an output instruction generation circuit configured to set a plurality of target waveform characteristic data respectively for a plurality of magnetic pole position time intervals to output a motor control output instruction, wherein the target waveform characteristic data of each magnetic pole position time interval has a target bit number;
• a bit number expansion circuit connected to the output instruction generation circuit and configured to generate a plurality of sub-target waveform characteristic data in a bit number expansion instruction according to each target waveform characteristic data whose target bit number is greater than an upper limit bit number, and a plurality of the sub-target waveform characteristic data of each target waveform characteristic data, wherein the bit number of each sub-target waveform characteristic data is less than the upper limit bit number;
• and
• a motor control circuit connected to the bit number expansion circuit and a motor and configured to generate a plurality of waveforms respectively having the plurality of sub-target waveform characteristic data as a plurality of bit number expansion waveforms according to the bit number expansion instruction received from the bit number expansion circuit, and control the motor in a plurality of bit expansion time intervals divided from a bit number expansion time interval according to the plurality of bit number expansion waveforms;
• wherein the motor control circuit outputs a plurality of motor control signals to the motor according to the plurality of the bit number expansion waveforms and a plurality of preset waveforms.