公开(公告)号：US20150244295A1

公开(公告)日：2015-08-27

申请号：US14501659

申请日：2014-09-30

Applicant: DELTA ELECTRONICS, INC.

Inventor： Chung-Hung TANG ,  Chien-Sheng LIN ,  Chin-Fa CHIU ,  Chun-Lung CHIU

IPC: H02P6/00 ,  H02P7/00 ,  H02P6/08

CPC classification number: H02P6/26 ,  H02P6/085 ,  H02P25/188

Abstract: A driving circuit drives a motor containing a first coil and a second coil. The driving circuit includes a switching unit, an operation unit and a control unit. The switching unit receives a switching signal from the control unit for driving the motor. The control unit detects the rotation speed of the motor. When the rotation speed of the motor is greater than a predetermined rotation speed, the control unit outputs a first operation signal to the operation unit to couple the first terminals of the first and second coils and couple the second terminals of the first and second coils. When the rotation speed of the motor is less than or equal to the predetermined rotational speed, the control unit outputs a second operation signal to the operation unit to couple the second terminal of the first coil to the first terminal of the second coil.

Abstract translation: 驱动电路驱动包含第一线圈和第二线圈的马达。 驱动电路包括切换单元，操作单元和控制单元。 切换单元从控制单元接收用于驱动马达的切换信号。 控制单元检测电动机的转速。 当电动机的转速大于预定转速时，控制单元向操作单元输出第一操作信号，以耦合第一和第二线圈的第一端子并耦合第一和第二线圈的第二端子。 当电机的转速小于或等于预定转速时，控制单元向操作单元输出第二操作信号，以将第一线圈的第二端子耦合到第二线圈的第一端子。