公开(公告)号：US06828748B2

公开(公告)日：2004-12-07

申请号：US10445920

申请日：2003-05-28

申请人： Alex Horng ,  Ta-Lun Ko

发明人： Alex Horng ,  Ta-Lun Ko

IPC分类号： G05B1128

CPC分类号： H02P25/024

摘要： A speed control circuit for a brushless dc motor includes a motor drive circuit, a drive member and a PWM control circuit. The motor drive circuit includes at least one coil and at least one transistor serially connected to the coil. The drive member is provided with a plurality of output terminals adapted to output a driving signal to the transistor of the motor drive circuit. The PWM control circuit is in connection between the transistor of the motor drive circuit and the output terminal of the drive member, thereby turning the transistor on or off.

摘要翻译： 用于无刷直流电动机的速度控制电路包括电动机驱动电路，驱动部件和PWM控制电路。 马达驱动电路包括至少一个线圈和串联连接到线圈的至少一个晶体管。 驱动构件设置有多个输出端子，适于将驱动信号输出到电动机驱动电路的晶体管。 PWM控制电路连接在电动机驱动电路的晶体管和驱动部件的输出端子之间，从而使晶体管接通或断开。

公开(公告)号：US06940236B2

公开(公告)日：2005-09-06

申请号：US10638352

申请日：2003-08-12

申请人： Alex Horng ,  Ching-Sheng Hong ,  Ta-Lun Ko

发明人： Alex Horng ,  Ching-Sheng Hong ,  Ta-Lun Ko

IPC分类号： H02P6/00 ,  H02P6/16 ,  H02P5/06 ,  H02K23/00

CPC分类号： H02P6/16 ,  H02P6/28

摘要： A parallel connected double-phase full-wave brushless dc motor includes a first drive member, a second drive member, a first sensor member, a second sensor member, a first motor coil and a second motor coil. The first drive member is connected to the first sensor member and the first motor coil, and the second drive member is connected to the second sensor member and the second motor coil. Hall signals of the first sensor member and the second sensor member are in control of an alternative direction of a first current and a second current passing through the first motor coil and the second motor coil. Thereby, the first motor coil and the second motor coil are excited in full wave. In operation, the first motor coil and the second motor coil are excited synchronous due to the parallel connection of the first motor coil and the second motor coil.

摘要翻译： 并联的双相全波无刷直流电动机包括第一驱动构件，第二驱动构件，第一传感器构件，第二传感器构件，第一电动机线圈和第二电动机线圈。 第一驱动构件连接到第一传感器构件和第一电动机线圈，并且第二驱动构件连接到第二传感器构件和第二电动机线圈。 第一传感器构件和第二传感器构件的霍尔信号控制通过第一电动机线圈和第二电动机线圈的第一电流和第二电流的替代方向。 由此，第一电动机线圈和第二电动机线圈以全波激励。 在操作中，由于第一电动机线圈和第二电动机线圈的并联，第一电动机线圈和第二电动机线圈被同步励磁。

公开(公告)号：US20050035732A1

公开(公告)日：2005-02-17

申请号：US10657229

申请日：2003-09-09

申请人： Alex Horng ,  Ching-Sheng Hong ,  Ta-Lun Ko

发明人： Alex Horng ,  Ching-Sheng Hong ,  Ta-Lun Ko

IPC分类号： H02P7/00 ,  H02P29/02

CPC分类号： H02P29/02

摘要： A brushless dc motor includes a fan motor drive circuit, an over-current-detecting/current-limiting circuit and a multi-functional speed control circuit. The fan motor drive circuit is connected to the over-current-detecting/current-limiting circuit which is further connected to the multi-functional speed control circuit. The over-current-detecting/current-limiting circuit is adapted to detect a rotational speed and an over-current. Detecting an over-current, the over-current-detecting/current-limiting circuit controls a current at a low voltage level for passing through the fan motor drive circuit and inadequate to destroy it. The multi-functional speed control circuit sends a predetermined speed signal to control the over-current-detecting/current-limiting circuit for carrying out speed control of the brushless dc motor.

摘要翻译： 无刷直流电动机包括风扇电动机驱动电路，过电流检测/限流电路和多功能速度控制电路。 风扇电动机驱动电路连接到进一步连接到多功能速度控制电路的过电流检测/限流电路。 过电流检测/限流电路适于检测转速和过电流。 检测过电流时，过电流检测/限流电路控制低电压电流通过风扇马达驱动电路，不足以破坏电流。 多功能速度控制电路发送预定速度信号以控制用于执行无刷直流电动机的速度控制的过电流检测/限流电路。

公开(公告)号：US20120007534A1

公开(公告)日：2012-01-12

申请号：US12895343

申请日：2010-09-30

申请人： Ta-Lun KO

发明人： Ta-Lun KO

IPC分类号： H02P7/288

CPC分类号： H02P7/288 ,  G06F1/206

摘要： A rotation speed control device for a heat-dissipating fan includes an impedance unit, a regulating unit, and a driving circuit. The impedance unit includes a first resistor having a first end connected to a first node, and a second end connected to a second node, and a second resistor having a third end connected to the second node, and a fourth end. The regulating unit is connected to the impedance unit and is configurable for varying an effective impedance of the impedance unit to adjust magnitude of current flowing through the impedance unit. The driving circuit is connected to the impedance unit and is adapted to control rotation speed of the heat-dissipating fan according to the magnitude of the current flowing through the impedance unit.

摘要翻译： 用于散热风扇的转速控制装置包括阻抗单元，调节单元和驱动电路。 阻抗单元包括第一电阻器，其具有连接到第一节点的第一端和连接到第二节点的第二端，以及具有连接到第二节点的第三端的第二电阻器和第四端。 调节单元连接到阻抗单元，并且可配置为改变阻抗单元的有效阻抗，以调节流过阻抗单元的电流的大小。 驱动电路连接到阻抗单元，并且适于根据流过阻抗单元的电流的大小来控制散热风扇的转速。

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。

公开(公告)号：US06845000B2

公开(公告)日：2005-01-18

申请号：US10633519

申请日：2003-08-05

申请人： Alex Horng ,  Ta-Lun Ko

发明人： Alex Horng ,  Ta-Lun Ko

IPC分类号： H02H3/087 ,  H02H7/08 ,  H02H7/085 ,  H02H9/02 ,  H02H3/00

CPC分类号： H02H7/0833 ,  H02H3/087 ,  H02H7/0858 ,  H02H9/02

摘要： A limiting circuit for a brushless dc motor in accordance with the present invention comprises a first transistor, a second transistor, a first resistor and a second resistor. The first transistor, the second transistor, the first resistor and the second resistor are arranged in complementary connection to constitute the limiting circuit which has a first terminal connected to a power source and a second terminal connected to a motor drive circuit.

摘要翻译： 根据本发明的用于无刷直流电动机的限制电路包括第一晶体管，第二晶体管，第一电阻器和第二电阻器。 第一晶体管，第二晶体管，第一电阻器和第二电阻器互补地布置以构成限制电路，其具有连接到电源的第一端子和连接到电动机驱动电路的第二端子。

公开(公告)号：US06838849B2

公开(公告)日：2005-01-04

申请号：US10638435

申请日：2003-08-12

申请人： Alex Horng ,  Ching-Sheng Hong ,  Ta-Lun Ko

发明人： Alex Horng ,  Ching-Sheng Hong ,  Ta-Lun Ko

IPC分类号： H02K13/00 ,  H02K23/00 ,  H02P6/16 ,  H02P7/06 ,  H02P5/06

CPC分类号： H02P6/16

摘要： A serially connected double-phase full-wave brushless dc motor includes a first drive member, a second drive member, a first sensor member, a second sensor member, a first motor coil and a second motor coil. The first drive member is connected to a power source to thereby obtain a first voltage, and connected to the first sensor member and the first motor coil. The first drive member is further in serial connection with a second drive member and a second sensor member, and provides with a second voltage thereto. The second drive member is connected to the second sensor member and the second motor coil. Hall signals of the first and second sensor members are in control of an alternative direction of the first and second motor coils for conduction, and thereby the first and second motor coils are synchronously excited in full wave by the first and second voltages respectively.

摘要翻译： 串联的双相全波无刷直流电动机包括第一驱动构件，第二驱动构件，第一传感器构件，第二传感器构件，第一电动机线圈和第二电动机线圈。 第一驱动构件连接到电源，从而获得第一电压，并连接到第一传感器构件和第一电动机线圈。 第一驱动构件进一步与第二驱动构件和第二传感器构件串联连接，并向其提供第二电压。 第二驱动构件连接到第二传感器构件和第二电动机线圈。 第一传感器构件和第二传感器构件的霍尔信号控制第一和第二电动机线圈的替代方向以进行导通，从而第一和第二电动机线圈分别通过第一和第二电压以全波同步激励。

公开(公告)号：US06806598B1

公开(公告)日：2004-10-19

申请号：US10622699

申请日：2003-07-21

申请人： Alex Horng ,  Ching-Sheng Hong ,  Ta-Lun Ko

发明人： Alex Horng ,  Ching-Sheng Hong ,  Ta-Lun Ko

IPC分类号： H02K1100

CPC分类号： H02K29/08 ,  H02P6/16

摘要： A double-phase half-wave brushless dc motor in accordance with the present invention includes a first sensor/drive member, a second sensor/drive member, a first motor coil and a second motor coil. Each of the sensor/drive members has two pins for electrical connection. Each of the motor coils is consisted of a first terminal and a second terminal for electrical connection. The first terminals of the first and second motor coils are commonly connected to a power source. The second terminal of the first motor coil is connected to one of the pins of the first sensor/drive member and one of the pins of the second sensor/drive member in common. And, the second terminal of the second motor coil is connected to the other pin of the first sensor/drive member and the other pin of the second sensor/drive member in common.

摘要翻译： 根据本发明的双相半波无刷直流电动机包括第一传感器/驱动构件，第二传感器/驱动构件，第一电动机线圈和第二电动机线圈。 每个传感器/驱动器件都有两个用于电气连接的销。 每个电动机线圈由第一端子和用于电连接的第二端子组成。 第一和第二电动机线圈的第一端子通常连接到电源。 第一电动机线圈的第二端子共同地连接到第一传感器/驱动构件的一个销和第二传感器/驱动构件的销中的一个。 并且，第二电动机线圈的第二端子共同地连接到第一传感器/驱动构件的另一个销和第二传感器/驱动构件的另一个销。

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。

公开(公告)号：US07064940B2

公开(公告)日：2006-06-20

申请号：US10442157

申请日：2003-05-21

申请人： Alex Horng ,  Ta-Lun Ko

发明人： Alex Horng ,  Ta-Lun Ko

IPC分类号： H02H5/04

CPC分类号： H02H7/0852 ,  H02H5/042

摘要： A over heat protection circuit for a brushless dc motor includes a thermal sensitive resistor, a resistor and a transistor. The thermal sensitive resistor and the resistor are commonly connected to a base of the transistor while an emitter of the transistor connecting to a motor coil. The thermal sensitive resistor has a resistance value which can be changed in response to an operational temperature. The thermal sensitive resistor is preset to operate at a safety temperature within a predetermined thermal preference. When the operational temperature of the motor coil exceeds the safety temperature, the over heat protection circuit may to cut off a motor current so that the motor coil is protected.

摘要翻译： 用于无刷直流电动机的过热保护电路包括热敏电阻器，电阻器和晶体管。 热敏电阻器和电阻器通常连接到晶体管的基极，而晶体管的发射极连接到电动机线圈。 热敏电阻具有可以响应于工作温度而改变的电阻值。 热敏电阻器预设为在预定的热偏好内的安全温度下工作。 当电机线圈的工作温度超过安全温度时，过热保护电路可能会切断电机电流，以保护电机线圈。