| 摘要 |
This motor has a special magnetic circuit which enables it to be powered by a very simple electronic circuitry. This motor has, according to the figure, four U-shaped Yokes (11, 112) with eight unevenly spaced poles (111) surrounding a rotating six-pole rotor (12). The motor is driven by two power semiconductor devices (21) controlled from a Hall sensor (31). The demagnetising energy being set free by switching off the main windings (112X) will be directed through the coupling diodes (22) as premagnetising energy to the secondary windings (113Y) of the following phase (Y). This motor with high speed capability which is inexpensive, simple and quietly running can be mainly used for pumps, fans and blowers for gases and fluids. |
