公开(公告)号：US06211635B1

公开(公告)日：2001-04-03

申请号：US09418358

申请日：1999-10-14

申请人： Takayuki Kambe ,  Junichi Takuma ,  Tomoaki Toshi ,  Hiroshi Miyazaki

发明人： Takayuki Kambe ,  Junichi Takuma ,  Tomoaki Toshi ,  Hiroshi Miyazaki

IPC分类号： H02K2300

CPC分类号： H02P6/085 ,  F04D27/004 ,  F05D2260/85 ,  H02P6/21

摘要： This invention relates to a brushless motor driving system for driving an outdoor fan of an air conditioner. The driving system comprises a Hall probe for detecting a position of a rotor of a brushless motor, an inverter circuit consisting of a plurality of switching elements connected in bridge-connection, the inverter circuit supplying ON-OFF electric current to stator coils of the brushless motor, and a control means for switching the switching elements of the inverter circuit based on the output signal of the Hall probe. Before starting the motor, the control means controlls the switching elements to supply DC PWM-controlled current to the stator coils of the motor in synchronization with the output signal of the Hall probe, so that the rotor is braked, stopped and set to home position.

摘要翻译： 本发明涉及一种用于驱动空调的室外风扇的无刷电机驱动系统。 驱动系统包括用于检测无刷电动机的转子位置的霍尔探头，由串联连接的多个开关元件组成的反相器电路，向无刷电机的定子线圈供给通断电流的逆变器电路 电动机以及用于根据霍尔探头的输出信号切换逆变器电路的开关元件的控制装置。 在启动电动机之前，控制装置控制开关元件，与霍尔探头的输出信号同步，控制电动机向定子线圈提供直流PWM控制电流，使转子制动，停止并置于原位 。