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1. 发明申请

US20100264866A1 MOTOR DRIVE DEVICE WITH LOCK PROTECTION FUNCTION 有权
标题翻译：具有锁定功能的电机驱动装置
公开(公告)号：US20100264866A1
公开(公告)日：2010-10-21
申请号：US12825782
申请日：2010-06-29
申请人： Tomofumi MISHIMA
发明人： Tomofumi MISHIMA
IPC分类号： H02H7/085
CPC分类号： H02H7/093 , H02H7/0858 , H02P6/14 , H02P29/032
摘要： A cooling system is provided with a motor drive device, a fan motor, and a Hall element. The motor drive device includes a lock protection circuit and a lock controller. When a control signal instructing rotation of the fan motor that is to be driven instructs stoppage of the motor for a predetermined time-period or longer, the lock controller has the lock protection circuit inactive. At an occasion when the control signal has continued to instruct stoppage of the fan motor for a first time-period or longer, a standby controller starts time measurement, and after a further predetermined second time-period has elapsed, makes at least a part of the motor drive device transition to a standby mode.
摘要翻译：冷却系统具有电机驱动装置，风扇马达和霍尔元件。电机驱动装置包括锁定保护电路和锁定控制器。当指示要驱动的风扇电动机的旋转的控制信号指示电动机停止预定时间段或更长时间时，锁定控制器使锁定保护电路不活动。在控制信号持续指示第一时间段以上的风扇电动机的停止的情况下，备用控制器开始时间测量，并且在经过了另外的预定的第二时间段之后，使至少一部分电机驱动装置转换到待机模式。

2. 发明申请

US20100225263A1 MOTOR DRIVING CIRCUIT AND METHOD FOR DRIVING MOTOR 有权
标题翻译：电动机驱动电路及其驱动方法
公开(公告)号：US20100225263A1
公开(公告)日：2010-09-09
申请号：US12706988
申请日：2010-02-17
申请人： Tomofumi MISHIMA
发明人： Tomofumi MISHIMA
IPC分类号： H02P1/04
CPC分类号： H02P1/18 , H02P7/29
摘要： A motor driving circuit receives a control pulse signal pulse-width modulated according to a target rotational speed, and drives a fan motor. A start pulse signal generating unit generates a start pulse signal having a predetermined duty ratio. A driving unit drives the fan motor by pulse width modulation according to the driving pulse signal received from a control unit. When the duty ratio of the control pulse signal is switched from zero to a nonzero value when the fan motor is in the stopped state, the control unit commences the driving operation for the fan motor. The control unit outputs, as the driving pulse signal, the start pulse signal, in a predetermined start period Ts from the commencement of the driving operation. After the start period elapses, the control unit outputs the control pulse signal as the driving pulse signal.
摘要翻译：马达驱动电路接收根据目标转速脉宽调制的控制脉冲信号，驱动风扇马达。起始脉冲信号发生单元产生具有预定占空比的起始脉冲信号。驱动单元根据从控制单元接收的驱动脉冲信号通过脉宽调制来驱动风扇电动机。当风扇电动机处于停止状态时，当控制脉冲信号的占空比从零切换到非零值时，控制单元开始风扇电动机的驱动操作。作为驱动脉冲信号，控制单元在从开始运行的预定开始周期Ts中输出起始脉冲信号。在开始周期过去之后，控制单元输出控制脉冲信号作为驱动脉冲信号。

3. 发明申请

US20110089878A1 MOTOR DRIVE DEVICE WITH LOCK PROTECTION FUNCTION 有权
标题翻译：具有锁定功能的电机驱动装置
公开(公告)号：US20110089878A1
公开(公告)日：2011-04-21
申请号：US12981627
申请日：2010-12-30
申请人： Tomofumi MISHIMA
发明人： Tomofumi MISHIMA
IPC分类号： H02H7/085 , G05D23/19
CPC分类号： H02H7/093 , H02H7/0858 , H02P6/14 , H02P29/032
摘要： A cooling system is provided with a motor drive device, a fan motor, and a Hall element. The motor drive device includes a lock protection circuit and a lock controller. When a control signal instructing rotation of the fan motor that is to be driven instructs stoppage of the motor for a predetermined time-period or longer, the lock controller has the lock protection circuit inactive. At an occasion when the control signal has continued to instruct stoppage of the fan motor for a first time-period or longer, a standby controller starts time measurement, and after a further predetermined second time-period has elapsed, makes at least a part of the motor drive device transition to a standby mode.
摘要翻译：冷却系统具有电机驱动装置，风扇马达和霍尔元件。电机驱动装置包括锁定保护电路和锁定控制器。当指示要驱动的风扇电动机的旋转的控制信号指示电动机停止预定时间段或更长时间时，锁定控制器使锁定保护电路不活动。在控制信号持续指示第一时间段以上的风扇电动机的停止的情况下，备用控制器开始时间测量，并且在经过了另外的预定的第二时间段之后，使至少一部分电机驱动装置转换到待机模式。

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