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1. 发明申请

US20130043818A1 SOFT-SWITCHING CONTROL CIRCUIT FOR DC MOTOR 有权
标题翻译：直流电机软开关控制电路
公开(公告)号：US20130043818A1
公开(公告)日：2013-02-21
申请号：US13211988
申请日：2011-08-17
申请人： CHIA-JUNG CHANG , WEI-LINE CHANG
发明人： CHIA-JUNG CHANG , WEI-LINE CHANG
IPC分类号： H02P6/18
CPC分类号： H02P6/008 , H02P6/16 , H02P6/182 , H02P6/20 , H02P6/26
摘要： A soft switching control circuit for a DC motor is provided. The soft switching control circuit has an absolute value generating circuit, a threshold voltage generating circuit, and a comparing circuit. The absolute value generating circuit outputs an absolute value signal according to a pair of Hall signals from the DC motor. The threshold voltage generating circuit receives a detected state signal and at least an end voltage of a coil of the DC motor for determining a current on the coil at an actual state change time defined by the detected state signal. According to the determination, the threshold voltage generating circuit outputs a threshold voltage with an adjusted voltage level. The comparing circuit compares the absolute value signal and the threshold voltage so as to generate a state change adjusting signal for modifying the actual state change time.
摘要翻译：提供一种用于直流电动机的软开关控制电路。软开关控制电路具有绝对值产生电路，阈值电压产生电路和比较电路。绝对值产生电路根据来自直流电动机的一对霍尔信号输出绝对值信号。阈值电压发生电路接收检测到的状态信号和直流电动机线圈的至少一个终端电压，用于在由检测到的状态信号定义的实际状态改变时间确定线圈上的电流。根据该判定，阈值电压生成电路输出具有调整后的电压电平的阈值电压。比较电路比较绝对值信号和阈值电压，以产生用于修改实际状态改变时间的状态改变调整信号。

2. 发明申请

US20130009573A1 LOCK PROTECTION AND STANDBY MODE CONTROL CIRCUIT OF MOTOR DRIVING APPARATUS 有权
标题翻译：电机驱动装置的锁定保护和待机模式控制电路
公开(公告)号：US20130009573A1
公开(公告)日：2013-01-10
申请号：US13179146
申请日：2011-07-08
申请人： CHIA-JUNG CHANG , WEI-LINE CHANG
发明人： CHIA-JUNG CHANG , WEI-LINE CHANG
IPC分类号： H02P6/20
CPC分类号： H02P7/29
摘要： A motor driving apparatus including a lock protection unit, a standby mode control unit, and a motor control circuit is provided. The lock protection unit receives a motor speed signal representing the rotation of the motor and generates a lock signal accordingly. The standby mode control unit receives a PWM signal and the lock signal and generates a standby mode control signal accordingly. The lock protection unit decides whether to stop generating the lock signal or not accordingly to the standby mode control signal. The motor control circuit controls the rotation of the motor according to the PWM signal and changes the operation mode according to the standby mode control signal and the lock signal.
摘要翻译：提供一种包括锁定保护单元，待机模式控制单元和马达控制电路的马达驱动装置。锁定保护单元接收表示电动机旋转的电动机速度信号，并相应地产生锁定信号。待机模式控制单元接收PWM信号和锁定信号，并相应地产生待机模式控制信号。锁定保护单元根据待机模式控制信号决定是否停止产生锁定信号。电机控制电路根据PWM信号控制电动机的旋转，并根据待机模式控制信号和锁定信号改变操作模式。

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