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1. 发明授权

US06741047B2 Dual current-limiting circuit for DC brushless motor 失效
标题翻译：直流无刷电机双限流电路
公开(公告)号：US06741047B2
公开(公告)日：2004-05-25
申请号：US10183596
申请日：2002-06-28
申请人： Alex Horng , Yin-Rong Hung , Ying-Ya Lu , Ta-Lun Ko
发明人： Alex Horng , Yin-Rong Hung , Ying-Ya Lu , Ta-Lun Ko
IPC分类号： H02P308
CPC分类号： H02P29/02 , H02P25/03
摘要： A dual current-limiting circuit for a dc brushless motor includes an over-current detective circuit, an operation detective circuit, and a current-limiting circuit. The over-current detective circuit produces a voltage signal used to determine whether an over-current has been input to the motor. The operation detective circuit also produces a voltage signal used to determine whether the motor is being operated in a normal manner. The current-limiting circuit decides to turn on a first switch of a first current-limiting circuit and to subsequently turn on a second switch of a second current-limiting circuit depending upon the two voltage signals. The current-limiting circuit is capable of suppressing current passing through a coil at a low voltage level, which is inadequate to damage a driver circuit and still adequate to restart the motor if an abnormal input current is eliminated.
摘要翻译：用于直流无刷电动机的双限流电路包括过电流检测电路，操作检测电路和限流电路。过电流检测电路产生用于确定过电流是否已输入到电动机的电压信号。操作检测电路还产生用于确定电机是否以正常操作的电压信号。限流电路决定接通第一限流电路的第一开关，并随后根据两个电压信号接通第二限流电路的第二开关。限流电路能够抑制在低电压电平下通过线圈的电流，这不足以损坏驱动器电路，并且如果消除了异常输入电流仍然足够重新启动电动机。

2. 发明授权

US06922038B2 Speed control circuit for a dc brushless motor 失效
标题翻译：直流无刷电机调速电路
公开(公告)号：US06922038B2
公开(公告)日：2005-07-26
申请号：US10856954
申请日：2004-06-01
申请人： Alex Horng , Ying-Ya Lu , Ta-Lun Ko
发明人： Alex Horng , Ying-Ya Lu , Ta-Lun Ko
IPC分类号： H02P4/00 , H02P6/00 , H02P6/08 , H02P1/34 , H02P1/42 , H02P5/28 , H02P7/36 , H02P2/18
CPC分类号： H02P4/00 , H02P6/08 , H02P6/26
摘要： A speed control circuit for a dc brushless motor includes a switch circuit and a voltage-detection circuit. The voltage-detection circuit is actuated depending upon high or low voltage of power supply to thereby cause the switch circuit to output high or low operating voltage to a driver circuit of the motor in response to changes of the voltage of the power supply. The motor is adjusted and operated at desired speeds by a rated range of input voltages according to the high or low operating voltage.
摘要翻译：用于直流无刷电动机的速度控制电路包括开关电路和电压检测电路。电压检测电路根据电源的高电压或低电压被致动，从而使开关电路响应于电源电压的变化而将高或低的工作电压输出到电动机的驱动电路。根据高或低的工作电压，电机按照额定输入电压范围进行调节和运行。

3. 发明授权

US06759819B2 Rotation detection circuit of a dc brushless motor using a fixed bias voltage 失效
标题翻译：使用固定偏置电压的直流无刷电机的旋转检测电路
公开(公告)号：US06759819B2
公开(公告)日：2004-07-06
申请号：US10101709
申请日：2002-03-21
申请人： Alex Horng , Ying-Ya Lu , Ming-Sheng Wang
发明人： Alex Horng , Ying-Ya Lu , Ming-Sheng Wang
IPC分类号： H02P500
CPC分类号： H02P6/16 , H02P6/08 , H02P6/26
摘要： A rotation detection circuit of a dc brushless motor using a fixed bias voltage includes a transistor, and a signal adjuster. The signal adjuster is connected in series between the transistor and driver circuit of the dc brushless motor, for adjusting a signal output by the driver circuit to the according to a fixed bias voltage. The signal adjuster can be selectively supplied with a fixed bias voltage or connected in series with a zener diode. The signal adjuster can be adjusted according to the characteristics of the motor driver circuit, thereby enhancing the design of the rotation detection circuit.
摘要翻译：使用固定偏置电压的直流无刷电动机的旋转检测电路包括晶体管和信号调节器。信号调节器串联连接在直流无刷电动机的晶体管和驱动电路之间，用于根据固定的偏置电压来调节驱动电路输出的信号。信号调节器可以选择性地提供固定偏置电压或与齐纳二极管串联连接。信号调节器可以根据电机驱动电路的特性进行调整，从而提高旋转检测电路的设计。

4. 发明授权

US06744229B2 Safety-guard detective circuit of a fan motor 失效
标题翻译：风扇电机的安全防护检测电路
公开(公告)号：US06744229B2
公开(公告)日：2004-06-01
申请号：US10107457
申请日：2002-03-28
申请人： Alex Horng , Ying-Ya Lu , Ming-Sheng Wang
发明人： Alex Horng , Ying-Ya Lu , Ming-Sheng Wang
IPC分类号： H02K2900
CPC分类号： H02P6/08 , H02P6/26 , H02P29/02
摘要： A safety-guard detective circuit of a fan motor includes a resistor being adapted to limit a large current input into the motor driver circuit, and a discharge member being adapted to perform grounding to discharge the large current limited by the resistor. The resistor and the release member are commonly connected to the third lead of the motor driver circuit.
摘要翻译：风扇马达的安全保护检测电路包括：电阻器，用于限制大电流输入到马达驱动电路;以及放电部件，其适于进行接地以对由电阻器限制的大电流进行放电。电阻器和释放构件通常连接到电动机驱动器电路的第三引线。

5. 发明授权

US06822419B2 Speed control circuit for a DC brushless motor 失效
标题翻译：直流无刷电机调速电路
公开(公告)号：US06822419B2
公开(公告)日：2004-11-23
申请号：US10126578
申请日：2002-04-22
申请人： Alex Horng , Ying-Ya Lu
发明人： Alex Horng , Ying-Ya Lu
IPC分类号： H02P736
CPC分类号： H02P4/00 , H02P6/08 , H02P6/26
摘要： A motor speed control circuit includes a switch circuit and a voltage-detection circuit. The voltage-detection circuit is actuated depending upon high or low voltage of a power supply to thereby cause the switch circuit to output high or low operating voltage to a driver circuit of the motor in response to changes of the voltage of the power supply. The motor is adjusted and operated at desired speeds by a rated range of input voltages according to the high or low operating voltage.
摘要翻译：电动机速度控制电路包括开关电路和电压检测电路。电压检测电路根据电源的高电压或低电压被致动，从而使得开关电路响应于电源的电压的变化而将高或低的工作电压输出到电动机的驱动电路。根据高或低的工作电压，电机按照额定输入电压范围进行调节和运行。

6. 发明授权

US06815916B2 Speed-control drive circuit for a D.C. brushless fan motor 失效
标题翻译：直流无刷风扇电机的调速驱动电路
公开(公告)号：US06815916B2
公开(公告)日：2004-11-09
申请号：US10123280
申请日：2002-04-17
申请人： Alex Horng , Ying-Ya Lu , Ming-Shen Wang
发明人： Alex Horng , Ying-Ya Lu , Ming-Shen Wang
IPC分类号： H02P500
CPC分类号： H02P6/14 , H02P6/08 , H02P25/024
摘要： A speed-control drive circuit for a D.C. brushless fan motor includes a pulse width modulation input end for receiving an external pulse width modulation signal for controlling (and changing) the motor speed, and a motor winding drive circuit. The motor winding drive circuit and the pulse width modulation input end are connected to a set of motor windings. The pulse width modulation signal controls the motor winding drive circuit to cause excitation/unexcitation of the set of motor windings and to alternately changes a direction of current such that the set of motor windings adjusts a speed of the fan motor in response to excitation of the set of motor windings responsive to the pulse width modulation signal. The speed of the fan motor increases when an operational period of the pulse width modulation signal increases, and the speed of the fan motor decreases when the operational period of the pulse width modulation signal decreases.
摘要翻译：用于直流无刷风扇电动机的速度控制驱动电路包括用于接收用于控制（和改变）电动机速度的外部脉宽调制信号的脉宽调制输入端和电动机绕组驱动电路。电动机绕组驱动电路和脉宽调制输入端连接到一组电动机绕组。脉冲宽度调制信号控制电动机绕组驱动电路，引起电动机绕组组的激励/不激励，并且交替地改变电流方向，使得该组电动机绕组响应于风力发电机的激励来调节风扇电动机的转速响应于脉宽调制信号的一组电动机绕组。当脉冲宽度调制信号的操作周期增加时，风扇电动机的速度增加，并且当脉宽调制信号的操作周期减小时，风扇电动机的速度降低。

7. 发明授权

US06664756B2 Conversion circuit for a DC brushless motor 有权
公开(公告)号：US06664756B2
公开(公告)日：2003-12-16
申请号：US10131204
申请日：2002-04-25
申请人： Alex Horng , Ying-Ya Lu
发明人： Alex Horng , Ying-Ya Lu
IPC分类号： H02P150
CPC分类号： H02P6/10
摘要： The conversion circuit for a DC brushless motor in accordance with the present invention mainly comprises a rectifier circuit, a power smoothing circuit, and a low-voltage stabilizing circuit. The conversion circuit is used for converting alternating current into direct current for a driver circuit of the motor.

8. 发明授权

US06593715B1 Single-phase motor with a conversion circuit 失效
标题翻译：单相电机带有转换电路
公开(公告)号：US06593715B1
公开(公告)日：2003-07-15
申请号：US10044970
申请日：2002-01-15
申请人： Alex Horng , Ming-Sheng Wang , Ying-Ya Lu
发明人： Alex Horng , Ming-Sheng Wang , Ying-Ya Lu
IPC分类号： H02K2908
CPC分类号： H02P6/26
摘要： A single-phase motor comprises a [US79KUA] two-phase motor driver IC, a conversion circuit, and a coil for a motor. The driver IC includes two outputs that are serially connected to the conversion circuit and then connected to the coil. The conversion circuit includes two transistors respectively connected two ends of the coil. The outputs of the driver IC respectively send out alternate on/off signals to respectively turn the transistors on and off, thereby controlling directions of current passing the coil. Thus, the coil generates alternative magnetic fields as a result of alternative directions of the current to thereby drive the rotor.
摘要翻译：单相电动机包括[US79KUA]两相电动机驱动器IC，转换电路和用于电动机的线圈。驱动器IC包括串联连接到转换电路然后连接到线圈的两个输出。转换电路包括分别连接线圈两端的两个晶体管。驱动器IC的输出分别发出交替的开/关信号，分别使晶体管导通和关断，从而控制通过线圈的电流方向。因此，线圈由于电流的替代方向产生替代磁场，从而驱动转子。

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