缩写：
BLDC Motors（Brushless DC Motors）：直流无刷电机
PMSM Motors （Permanent Magnet Synchronous Motors）：永磁同步电机
Ebemf（Back emf）：反电动势
| BLDC | PMSM | ||
| Synchronous machine | 同步电机 | Synchronous machine | 同步电机 |
| Fed with direct currents | 直流电供电 | Fed with sinusoidal currents | 正弦电流驱动 |
| Trapezoidal Bemf | 梯形反电动势 | Sinusoidal Bemf | 正弦反电动势 |
| Stator Flux position commutation each 60° | 定子磁链位置每60°换向 | Continuous stator flux position variation | 定子磁链位置连续变化 |
| Only two phases ON at the same time | 只允许两相同时开启 | Possible to have three phases ON at the same time | 有可能三相同时开启 |
| Torque ripple at commutations | 换向时的转矩脉动 | No torque ripple at commutations | 无换向时的转矩脉动 |
| Low order current harmonics in the audible range | 可闻范围内电流低次谐波 | Less harmonics due to sinusoidal excitation | 正弦激励引起的谐波较少 |
| Higher core losses due to harmonic content | 由于谐波含量，铁芯损耗更大 | Lower core loss | 磁心损耗低 |
| Less switching losses | 更少的切换损失 | Higher switching losses at the same switching freq. | 在相同的开关频率下，开关损耗更高 |
| Control algorithms are relatively simple | 控制算法相对简单 | Control algorithms are mathematically intensive | 控制算法是数学密集型的 |
