公开(公告)号：US20100164581A1

公开(公告)日：2010-07-01

申请号：US12500923

申请日：2009-07-10

Applicant: Zhihong Zhang ,  Xujiang Huang

Inventor： Zhihong Zhang ,  Xujiang Huang

IPC: H03K3/017

CPC classification number: H02P6/085 ,  F04D27/004 ,  H02P6/26 ,  H02P27/08

Abstract: A pulse width modulated (PWM) controller has an input terminal for receiving a pulsed input signal having a first duty cycle, a power supply terminal for receiving a power supply voltage. a minimum duty cycle reference voltage signal, and a control circuit for providing a pulse-width-modulated (PWM) output signal having a second duty cycle related to the first duty cycle of the pulsed input signal. The PWM output control signal having a minimum duty cycle that is adjustable in response to a change in the power supply voltage. In an embodiment, the second duty cycle and the first duty cycle are correlated in a substantially linear relationship. In an embodiment, the PWM control circuit also has a triangle wave generation circuit for generating a triangle wave signal configured to oscillate between an upper limit voltage and a lower limit voltage, which are adjustable in response to a change in the power supply voltage.

Abstract translation: 脉冲宽度调制（PWM）控制器具有用于接收具有第一占空比的脉冲输入信号的输入端子，用于接收电源电压的电源端子。 最小占空比参考电压信号，以及用于提供具有与脉冲输入信号的第一占空比相关的第二占空比的脉冲宽度调制（PWM）输出信号的控制电路。 PWM输出控制信号具有响应于电源电压变化而可调节的最小占空比。 在一个实施例中，第二占空比和第一占空比以基本线性关系相关。 在一个实施例中，PWM控制电路还具有三角波产生电路，用于产生三角波信号，该三角波信号被配置为在上限电压和下限电压之间振荡，这可以响应于电源电压的变化而调节。

公开(公告)号：US07741799B2

公开(公告)日：2010-06-22

申请号：US11826156

申请日：2007-07-12

Applicant: Alex Horng ,  Chung-Ken Cheng ,  Shih-Chang Hsu

Inventor： Alex Horng ,  Chung-Ken Cheng ,  Shih-Chang Hsu

IPC: H02P6/00

CPC classification number: H02P6/16 ,  H02P6/26

Abstract: A brushless DC motor drive circuit includes a drive unit and a transient current suppression circuit. The drive unit comprises a Hall component, a drive component, a first transistor and a second transistor. The Hall component detects the position of a rotor of the DC motor and transmits digital command signals to the drive component; the drive component further generates two complementary digital command signals; and the first and second transistors connect with the drive component respectively. The transient current suppression circuit comprises a first auxiliary transistor and a second auxiliary transistor, wherein the first auxiliary transistor receives one of the complementary digital command signals different from the other one received by the first transistor and the second auxiliary transistor receives the other one of the complementary digital command signals different from the one received by the second transistor.

Abstract translation: 无刷直流电机驱动电路包括驱动单元和瞬态电流抑制电路。 驱动单元包括霍尔元件，驱动元件，第一晶体管和第二晶体管。 霍尔元件检测直流电机转子的位置，并向驱动部件发送数字指令信号; 驱动组件进一步产生两个互补的数字命令信号; 并且第一和第二晶体管分别与驱动部件连接。 瞬态电流抑制电路包括第一辅助晶体管和第二辅助晶体管，其中第一辅助晶体管接收与第一晶体管接收的另一个不同的互补数字指令信号之一，第二辅助晶体管接收另一个 互补的数字命令信号与第二晶体管接收的信号不同。

公开(公告)号：US20100092275A1

公开(公告)日：2010-04-15

申请号：US12248417

申请日：2008-10-09

Applicant: George Savitz

Inventor： George Savitz

IPC: F04B17/03 ,  F04D27/00

CPC classification number: F24C7/08 ,  F24C15/325 ,  H02P6/182 ,  H02P6/26 ,  H02P25/04

Abstract: A household appliance including a fan speed controller, and a method of controlling fan speed of a household appliance, are provided. The system includes a fan speed controller that cut a voltage to the fan motor, measures an electromotive force (EMF) of the fan motor at a predetermined time after the cutting of the voltage to the fan motor, and compares the measured electromotive force (EMF) to a table.

Abstract translation: 提供一种家用电器，包括风扇速度控制器和控制家用电器的风扇速度的方法。 该系统包括风扇转速控制器，其切断风扇电动机的电压，在切断风扇电动机的电压之后的预定时间测量风扇电动机的电动势（EMF），并将测得的电动势 ）到桌子

公开(公告)号：US20090256508A1

公开(公告)日：2009-10-15

申请号：US12361551

申请日：2009-01-29

Applicant: Benjamin HAAS ,  Frank Heller

Inventor： Benjamin HAAS ,  Frank Heller

IPC: H02P6/14

CPC classification number: H02P6/157 ,  H02P6/15 ,  H02P6/26

Abstract: An electronically commutated motor (20) has a rotor (28) and a rotor position sensor (30), which sensor, during operation, furnishes a rotational position signal (34). A stator interacts with the rotor (28). The stator has a stator winding strand (26) in an H bridge (22), and a control apparatus (36) which, during operation, performs the steps of: (A) controlling the H bridge (22) so that current pulses (+i1, −i1) flow through the stator winding strand (26), in alternate directions, each pulse starting at a first point in time (t1); (B) at the beginning of each commutation, starting from a second point in time (t2), operating in short circuit the winding strand (26), in order to cause a decreasing loop current (I*) through the stator winding strand (26), which loop current (I*) reaches zero at a third point in time (t3); and (C) stepwise modifying, toward a minimum, the time interval (TCC) between the first and third points in time (t1, t3).

Abstract translation: 电子换向马达（20）具有转子（28）和转子位置传感器（30），所述传感器在操作期间提供旋转位置信号（34）。 定子与转子（28）相互作用。 定子在H桥（22）中具有定子绕组（26），以及控制装置（36），其在操作期间执行以下步骤：（A）控制H桥（22）使得电流脉冲 + i1，-i1）在交替的方向上流过定子绕组线（26），每个脉冲从第一时间点（t1）开始; （B）在每次换向开始时，从第二时间点（t2）开始，使绕组线（26）短路操作，以便通过定子绕组线圈产生减小的回路电流（I *）（ 26），在第三时间点（t3），哪个回路电流（I *）达到零; 和（C）逐步地修改第一和第三时间点（t1，t3）之间的时间间隔（TCC）。

公开(公告)号：US07586276B2

公开(公告)日：2009-09-08

申请号：US10597585

申请日：2004-12-28

Applicant: Konstantin Dornhof

Inventor： Konstantin Dornhof

IPC: H02P6/00

CPC classification number: H02P6/10 ,  H02P6/08 ,  H02P6/085 ,  H02P6/26

Abstract: The invention relates to an electronically commutated motor (10) and to a method of controlling an electronically commutated motor (10). In order to reduce commutation noise, it is proposed to influence the working range of the power-stage transistors (20, 22) with the aid of a component (48), in such a way that each transistors produces, during energization of each respective stator winding, a substantially constant current through the stator winding (12, 14). Preferably, each power-stage transistor operates within a pinch-off range.

Abstract translation: 本发明涉及一种电子换向马达（10）和一种控制电子换向马达（10）的方法。 为了减少换向噪声，提出了借助于分量（48）来影响功率级晶体管（20,22）的工作范围，使得每个晶体管在各自的通电期间产生 定子绕组，通过定子绕组（12,14）的基本上恒定的电流。 优选地，每个功率级晶体管在夹断范围内工作。

公开(公告)号：US20080317444A1

公开(公告)日：2008-12-25

申请号：US12068429

申请日：2008-02-06

Applicant: Chi-Lin Hsu ,  En-Hsun Hsiao ,  Meng-Hsun Lee

Inventor： Chi-Lin Hsu ,  En-Hsun Hsiao ,  Meng-Hsun Lee

IPC: H02P7/29

CPC classification number: H02P6/26

Abstract: A driving device is provided for controlling rotation of a motor. The driving device comprises an inputting module, a comparing module and a processing module. The inputting module includes a first current source, a first voltage source and a first capacitance. The first capacitance is coupled between the first current source and the first voltage source for charging/discharging and generating a voltage signal. The comparing module is coupled to the inputting module for comparing a selecting signal with the voltage signal and generating a comparing signal. The processing module is coupled to the comparing module and generates a control signal according to a clock signal and the comparing signal, wherein the driving device controls the rotation of the motor by the control signal.

Abstract translation: 提供驱动装置用于控制电动机的旋转。 驱动装置包括输入模块，比较模块和处理模块。 输入模块包括第一电流源，第一电压源和第一电容。 第一电容耦合在第一电流源和第一电压源之间用于充电/放电并产生电压信号。 比较模块耦合到输入模块，用于将选择信号与电压信号进行比较并产生比较信号。 处理模块耦合到比较模块，并根据时钟信号和比较信号产生控制信号，其中驱动装置通过控制信号控制电动机的旋转。

公开(公告)号：US20080253750A1

公开(公告)日：2008-10-16

申请号：US11685652

申请日：2007-03-13

Applicant: JAO-CHING LIN ,  LIN-ABEL CHU ,  YOU-KANG LIN ,  CHENG-CHUNG TSAU ,  CHUNG-YI SHEN

Inventor： JAO-CHING LIN ,  LIN-ABEL CHU ,  YOU-KANG LIN ,  CHENG-CHUNG TSAU ,  CHUNG-YI SHEN

IPC: H02P7/29 ,  H02P27/00

CPC classification number: H02P6/08 ,  H02P6/26

Abstract: A protect-control device capable of limiting current for reducing noise resulting from switchover of a motor includes a motor coil set, a driving unit, a sensing unit and a control unit. The motor coil set constituting a motor. The driving unit is electrically connected to the motor coil and provides a driving level to pass through the motor coil for driving the motor. The sensing unit is electrically connected to the motor coil set, provides a preset reference level, detects the driving level, compares the driving level to the preset reference level and outputs identifying signal. The control signal is electrically connected to the driving unit, the sensing unit and a Hall component, adjusts the driving level based on the identifying signal for driving unit output maintaining a basic duty cycle.

Abstract translation: 能够限制电流以减少由电动机的切换引起的噪声的保护控制装置包括电动机线圈组，驱动单元，感测单元和控制单元。 电动机线圈组构成电动机。 驱动单元电连接到电动机线圈，并且提供驱动电平以通过用于驱动电动机的电机线圈。 感测单元电连接到电机线圈组，提供预设的参考电平，检测驱动电平，将驱动电平与预设参考电平进行比较，并输出识别信号。 控制信号电连接到驱动单元，感测单元和霍尔元件，基于保持基本占空比的驱动单元输出的识别信号来调节驱动电平。

公开(公告)号：US20080100255A1

公开(公告)日：2008-05-01

申请号：US11976873

申请日：2007-10-29

Applicant: Kwok Kuen Tse

Inventor： Kwok Kuen Tse

IPC: H02P1/46

CPC classification number: H02P27/16 ,  H02P1/465 ,  H02P6/15 ,  H02P6/22 ,  H02P6/26

Abstract: An electronic start control device for unidirectionally rotating a permanent-magnet rotor (14) of a synchronous motor (10), comprises: a static switch (22) for series connection to a winding of a stator (12) of the synchronous motor (10); and a position sensor (24) for detecting a position of the rotor (14) of the synchronous motor (10) and for providing a corresponding output (Pcon). The device is characterised by including an AC to AC converter (26) having an input (Va) from an alternating current-voltage source (Vac) at a fixed frequency connected in series with the stator (12) of the synchronous motor (10), and a single output (Vc) derived from the voltage input (Va); and an XNOR unit (28) having a first input (G1) in communication with the output (Vc) of the AC to AC converter (26), a second input (G2) in communication with an output (P) of the position sensor (24), and an output (GO) in communication with the static switch (22). The static switch (22) is controllable by a signal (Gcon) output from the XNOR unit (28), so that the rotor (14) of the synchronous motor (10) only rotates in a single direction. Preferably, the AC to AC converter is a phase-shifter (26).

Abstract translation: 一种用于单向同步电动机（10）的永磁转子（14）旋转的电子起动控制装置，包括：静止开关（22），用于与同步电动机（10）的定子（12）的绕组串联连接 ）; 以及位置传感器（24），用于检测所述同步电动机（10）的转子（14）的位置并提供相应的输出（P）。 该装置的特征在于包括AC至AC转换器（26），其具有来自交流电压源（V SUB）的固定频率的输入（V SUB） 与所述同步电动机（10）的定子（12）串联连接，以及从所述电压输入端（V SUB）导出的单个输出端（V SUB）。 和具有与AC至AC转换器（26）的输出（V SUB）之间的通信的第一输入（G SUB 1）的XNOR单元（28），第二 与位置传感器（24）的输出（P）通信的输入（G 2 2＆gt;）和与静态开关（22）通信的输出（G ）。 静态开关（22）可以通过从XNOR单元（28）输出的信号（G <）来控制，使得同步电动机（10）的转子（14）仅以单个 方向。 优选地，AC至AC转换器是移相器（26）。

公开(公告)号：US06861819B2

公开(公告)日：2005-03-01

申请号：US10382015

申请日：2003-03-05

Applicant: Elio Marioni

Inventor： Elio Marioni

IPC: H02K7/118 ,  H02K29/08 ,  H02P6/00 ,  H02P6/20 ,  H02P5/28

CPC classification number: H02K29/08 ,  H02K7/1185 ,  H02P6/20 ,  H02P6/26

Abstract: An electronic device for starting a permanent-magnet synchronous motor, comprising logic control means, at least one switch arranged in series between a power supply source and a permanent-magnet synchronous motor, sensor means suitable to determine the polarity and position of the rotor of the motor, the logic control means being suitable to send a driving signal to the switch means as a function of a signal that arrives from the sensor means and a voltage signal of the power supply source.

Abstract translation: 一种用于启动永磁同步电动机的电子装置，包括逻辑控制装置，串联布置在电源和永磁同步电动机之间的至少一个开关，适于确定转子的极性和位置的传感器装置 电动机，逻辑控制装置适合于根据从传感器装置到达的信号和电源的电压信号向开关装置发送驱动信号。

公开(公告)号：US20040178753A1

公开(公告)日：2004-09-16

申请号：US10811970

申请日：2004-03-30

Applicant: Minebea Co., Ltd.

Inventor： Junnan Xi

IPC: H02P005/06

CPC classification number: H02P6/085 ,  H02M7/538 ,  H02P6/26 ,  H03K17/063

Abstract: A pre-drive circuit for a brushless DC single-phase motor permits a cost reduction and an easy adjustment for the control input voltage of a switching device adjacent to a power source in a wider range, especially in increasing the control input voltage. In a drive circuit having four switching devices making up an H-bridge circuit with a motor coil being sandwiched therebetween, a control voltage exceeding a power supply voltage is required to turn ON the switching devices adjacent to the power source. The pre-drive circuit changes the duty ratio of the control voltage controlling motor speed. A circuit unit for generating pulse signals for controlling the switching devices uses an inexpensive logic circuit. Drive circuits receiving step-up voltages to amplify the pulse signals for controlling the switching devices adjacent to the power source to a level exceeding the power supply voltage and supplying the amplified pulse signals to the control input terminals of the switching devices adjacent to the power source are separately configured from peripheral circuits.

Abstract translation: 用于无刷直流单相电动机的预驱动电路允许成本降低并且容易地调节在较宽范围内与电源相邻的开关装置的控制输入电压，特别是在增加控制输入电压。 在具有四个开关装置的驱动电路中，其中夹在电机线圈之间的H桥电路构成，需要超过电源电压的控制电压来接通与电源相邻的开关装置。 预驱动电路改变控制电压控制电机速度的占空比。 用于产生用于控制开关装置的脉冲信号的电路单元使用廉价的逻辑电路。 驱动电路接收升压电压以放大用于控制与电源相邻的开关器件的脉冲信号至超过电源电压的电平，并将放大的脉冲信号提供给与电源相邻的开关器件的控制输入端 由外围电路单独配置。