公开(公告)号：US07786688B2

公开(公告)日：2010-08-31

申请号：US12095989

申请日：2006-12-04

申请人： Hiroaki Hayashi ,  Toshikazu Satake

发明人： Hiroaki Hayashi ,  Toshikazu Satake

IPC分类号： H02P6/00

CPC分类号： H02P7/28 ,  H02P7/29

摘要： A drive signal generation circuit generates drive signals that control ON and OFF states of transistors of a H-bridge circuit, in accordance with a target value of torque. A driver circuit alternatively turns ON and OFF high side transistors, and low side transistors of the H-bridge circuit, based on the drive signals outputted from the drive signal generation circuit. The driver circuit immediately turns OFF the high side transistors, when an instruction is issued to stop a motor, and after a predetermined delay time τd has elapsed, turns OFF the low side transistors.

摘要翻译： 驱动信号生成电路根据转矩的目标值生成控制H桥电路的晶体管的导通和截止状态的驱动信号。 基于从驱动信号发生电路输出的驱动信号，驱动电路交替地接通和断开高侧晶体管和H桥电路的低侧晶体管。 当发出停止电动机的指令时，驱动电路立即关闭高侧晶体管，在经过预定的延迟时间τd之后，关闭低侧晶体管。

公开(公告)号：US20090045762A1

公开(公告)日：2009-02-19

申请号：US12095989

申请日：2006-12-04

申请人： Hiroaki Hayashi ,  Toshikazu Satake

发明人： Hiroaki Hayashi ,  Toshikazu Satake

IPC分类号： H02P3/12 ,  H02P7/29

CPC分类号： H02P7/28 ,  H02P7/29

摘要： A drive signal generation circuit generates drive signals that control ON and OFF states of transistors of a H-bridge circuit, in accordance with a target value of torque. A driver circuit alternatively turns ON and OFF high side transistors, and low side transistors of the H-bridge circuit, based on the drive signals outputted from the drive signal generation circuit. The driver circuit immediately turns OFF the high side transistors, when an instruction is issued to stop a motor, and after a predetermined delay time τd has elapsed, turns OFF the low side transistors.

摘要翻译： 驱动信号生成电路根据转矩的目标值生成控制H桥电路的晶体管的导通和截止状态的驱动信号。 基于从驱动信号发生电路输出的驱动信号，驱动电路交替地接通和断开高侧晶体管和H桥电路的低侧晶体管。 当发出停止电动机的指令时，驱动电路立即关闭高侧晶体管，经过预定的延迟时间taud后，关闭低侧晶体管。

公开(公告)号：US08878472B2

公开(公告)日：2014-11-04

申请号：US13427448

申请日：2012-03-22

申请人： Toshikazu Satake ,  Hiroyuki Ishii

发明人： Toshikazu Satake ,  Hiroyuki Ishii

IPC分类号： H02P6/06 ,  H02P6/00

CPC分类号： H02P6/008 ,  H02P6/26

摘要： A driving device capable of driving a motor more efficiently is provided. A zero-crossing detection comparator 10 compares a pair of Hall signals H+ and H− having reverse phases and representing a rotor position of a fan motor 6, and generates a level-shifted zero-crossing detection signal S1 at each zero-crossing timing when the Hall signals cross each other. A control circuit 20 receives the zero-crossing detection signal S1, switches a driving phase at each zero-crossing timing to rotationally drive the motor, and regeneratively controls the motor during a duration from a first time point ahead of each zero-crossing timing by a first time width τ1 to a second time point behind each zero-crossing timing by a second time width τ2 shorter than the first time width τ1.

摘要翻译： 提供能够更有效地驱动电动机的驱动装置。 过零检测比较器10比较具有反相的一对霍尔信号H +和H，并表示风扇电动机6的转子位置，并且在每个过零时刻产生电平移位过零检测信号S1， 霍尔信号相互交叉。 控制电路20接收过零检测信号S1，在每个过零时刻切换驱动相位以旋转驱动电动机，并且在从每个过零定时之前的第一时间点开始的持续时间内再次控制电动机 在第一时间宽度τ1之后的第二时间宽度τ2到第二时间点的第一时间宽度τ1到第二时间点。