Circuit Protection Method and Motor Control Circuit
    1.
    发明申请
    Circuit Protection Method and Motor Control Circuit 审中-公开
    电路保护方法和电机控制电路

    公开(公告)号:US20130099709A1

    公开(公告)日:2013-04-25

    申请号:US13323829

    申请日:2011-12-13

    IPC分类号: H02P7/00

    CPC分类号: H02P7/29

    摘要: A circuit protection method for a motor control circuit includes determining whether the motor control circuit complies with an operating condition when the motor control circuit is in a start mode, a lock mode or a restart mode, and modulating a current outputted from the motor control circuit when the motor control circuit complies with the operating condition.

    摘要翻译: 一种用于电动机控制电路的电路保护方法,包括:确定电动机控制电路是否符合电动机控制电路处于起动模式,锁定模式或再起动模式时的运行状态,以及调节从电动机控制电路输出的电流 当电机控制电路符合工作条件时。

    Method of Driving DC Motor and Related Circuit for Avoiding Reverse Current
    2.
    发明申请
    Method of Driving DC Motor and Related Circuit for Avoiding Reverse Current 有权
    驱动直流电机及相关电路避免反向电流的方法

    公开(公告)号:US20110062910A1

    公开(公告)日:2011-03-17

    申请号:US12647556

    申请日:2009-12-28

    IPC分类号: H02P6/18

    CPC分类号: H02P6/18

    摘要: A motor driving method for driving a direct-current (DC) motor, designed for avoiding a reverse current induced by the Back Electromotive Force (BEMF), includes providing a driver circuit for driving the DC motor; comparing a signal level of a terminal of the DC motor and a predetermined voltage value to produce a comparing result; and controlling a specific lower gate switch to avoid the occurrence of a reverse current of the DC motor according to the comparing result.

    摘要翻译: 用于驱动直流(DC)电动机的电动机驱动方法,设计用于避免由反电动势(BEMF)引起的反向电流,包括提供用于驱动直流电动机的驱动电路; 比较直流电动机的端子的信号电平和预定电压值以产生比较结果; 并根据比较结果控制特定的下门开关以避免直流电动机的反向电流的发生。

    Current Limit Control Method of DC Motor and Related Device and Circuit
    3.
    发明申请
    Current Limit Control Method of DC Motor and Related Device and Circuit 有权
    直流电动机及相关装置及电路的限流控制方法

    公开(公告)号:US20100244757A1

    公开(公告)日:2010-09-30

    申请号:US12512024

    申请日:2009-07-30

    IPC分类号: H02P7/00

    CPC分类号: H02P7/285 H02P29/032

    摘要: A control method of a current limit of a DC motor includes generating a reference voltage according to a preset current limit value of a DC motor; comparing the reference voltage with the voltage drop of a power control switch which drives the DC motor to generate a compare result; and controlling the power delivered to the DC motor according to the compare result in order to limit the current of the DC motor.

    摘要翻译: DC电动机的电流限制的控制方法包括根据直流电动机的预设电流极限值生成参考电压; 将参考电压与驱动DC电机的功率控制开关的电压降进行比较以产生比较结果; 并根据比较结果控制输送到直流电动机的功率,以便限制直流电动机的电流。

    Pulse Width Modulation Circuit Capable of Linearly Adjusting Duty Cycle with Voltage and Related Method
    4.
    发明申请
    Pulse Width Modulation Circuit Capable of Linearly Adjusting Duty Cycle with Voltage and Related Method 有权
    具有电压和相关方法线性调节占空比的脉宽调制电路

    公开(公告)号:US20100176851A1

    公开(公告)日:2010-07-15

    申请号:US12475615

    申请日:2009-06-01

    IPC分类号: H03K21/00 H03K3/017

    CPC分类号: H03K7/08

    摘要: A pulse width modulation circuit capable of linearly adjusting duty cycle with voltage, which comprises an input voltage source for generating an input voltage, a regulator for generating a regulated voltage, a first voltage-dividing unit for providing a first divided voltage, a second voltage-dividing unit for providing a second divided voltage, a third voltage-dividing unit for providing a third divided voltage, a voltage adder for adding the first divided voltage and the third divided voltage for generating a high level voltage, a waveform generator for generating an oscillating signal according to the high level voltage and the third divided voltage, and a comparator having a first input terminal coupled to the second voltage-dividing unit, a second terminal coupled to the waveform generator, and an output terminal for comparing the second divided voltage with the oscillating signal to output a pulse width modulation signal through the output terminal.

    摘要翻译: 一种脉宽调制电路,其能够线性地调整占空比与电压,其包括用于产生输入电压的输入电压源,用于产生调节电压的调节器,用于提供第一分压的第一分压单元,第二电压 用于提供第二分压的分割单元,用于提供第三分压的第三分压单元,用于将第一分压和第三分压相加的电压加法器,用于产生高电平电压;波形发生器, 根据高电平电压和第三分压电压的振荡信号,以及具有耦合到第二分压单元的第一输入端子,耦合到波形发生器的第二端子的比较器和用于将第二分压电压 振荡信号通过输出端输出脉宽调制信号。

    Motor driving circuit and method thereof
    5.
    发明授权
    Motor driving circuit and method thereof 有权
    电机驱动电路及其方法

    公开(公告)号:US09184684B2

    公开(公告)日:2015-11-10

    申请号:US13609187

    申请日:2012-09-10

    IPC分类号: H02P6/00 H02P7/29 H02P7/00

    CPC分类号: H02P7/2913 H02P7/04

    摘要: A motor driving circuit for driving a motor includes: a driving-stage circuit, for converting an input voltage into a first output voltage and a second output voltage, and comprising a first transistor, a second transistor, a third transistor and a fourth transistor; an output stage circuit, for converting the first output voltage or the second output voltage into a motor speed signal; and a control unit, coupled to the first, the second, the third and the fourth transistors and the output stage circuit, for generating first, second, third and fourth transistor control signals to control the first, the second, the third and the fourth transistors respectively.

    摘要翻译: 一种用于驱动电动机的电动机驱动电路包括:驱动级电路,用于将输入电压转换为第一输出电压和第二输出电压,并且包括第一晶体管,第二晶体管,第三晶体管和第四晶体管; 输出级电路,用于将第一输出电压或第二输出电压转换为电动机速度信号; 以及耦合到第一,第二,第三和第四晶体管和输出级电路的控制单元,用于产生第一,第二,第三和第四晶体管控制信号,以控制第一,第二,第三和第四 晶体管。

    Power control circuit, switching power converter, and method for reducing noise and switching loss
    6.
    发明授权
    Power control circuit, switching power converter, and method for reducing noise and switching loss 有权
    功率控制电路,开关电源转换器和降低噪声和开关损耗的方法

    公开(公告)号:US08441243B2

    公开(公告)日:2013-05-14

    申请号:US13025120

    申请日:2011-02-10

    IPC分类号: G05F1/40

    摘要: Power control circuit with reducing noise and switching loss includes a first gate driver for driving a first switch, an additional gate driver for driving the first switch, and a managing circuit for controlling the first and the additional gate driver to drive the first switch according to a switching signal and turning off the additional gate driver according to a switching voltage on a first end of the first switch, wherein the first end of the first switch is coupled to a load, second end of the first switch is coupled to an input power source, a third end of the first switch is coupled to the first and the additional gate drivers.

    摘要翻译: 具有降低噪声和开关损耗的功率控制电路包括用于驱动第一开关的第一栅极驱动器,用于驱动第一开关的附加栅极驱动器,以及用于控制第一和第二栅极驱动器以驱动第一开关的管理电路, 开关信号,并根据第一开关的第一端上的开关电压关闭附加栅极驱动器,其中第一开关的第一端耦合到负载,第一开关的第二端耦合到输入功率 源,第一开关的第三端耦合到第一和附加栅极驱动器。

    Clamp circuit for clamping inrush voltage induced by hot plugging and related chip
    7.
    发明授权
    Clamp circuit for clamping inrush voltage induced by hot plugging and related chip 有权
    用于夹紧由热插拔和相关芯片引起的浪涌电压的钳位电路

    公开(公告)号:US07940107B2

    公开(公告)日:2011-05-10

    申请号:US12398190

    申请日:2009-03-05

    IPC分类号: H03L5/00

    CPC分类号: H02H9/004 Y10S323/908

    摘要: An inrush voltage clamping circuit for an electronic device for clamping an inrush voltage induced by hot plugging is disclosed. The clamp circuit includes a buffer unit and a clamp unit. The buffer unit is coupled to an input power end for receiving an inrush current of the inrush voltage. The clamp unit is coupled to the input power end and the buffer unit for controlling the buffer unit to receive the inrush current according to an input voltage of the input power end.

    摘要翻译: 公开了一种用于钳位由热插拔引起的浪涌电压的电子装置的浪涌电压钳位电路。 钳位电路包括缓冲单元和钳位单元。 缓冲单元耦合到输入电源端,用于接收浪涌电压的浪涌电流。 钳位单元耦合到输入电源端和缓冲单元,用于控制缓冲单元根据输入电源端的输入电压接收浪涌电流。

    Clamp Circuit for Clamping Inrush Voltage Induced by Hot Plugging and Related Chip
    9.
    发明申请
    Clamp Circuit for Clamping Inrush Voltage Induced by Hot Plugging and Related Chip 有权
    用于夹紧由热插拔和相关芯片引起的浪涌电压的钳位电路

    公开(公告)号:US20100045357A1

    公开(公告)日:2010-02-25

    申请号:US12398190

    申请日:2009-03-05

    IPC分类号: H03L5/00

    CPC分类号: H02H9/004 Y10S323/908

    摘要: An inrush voltage clamping circuit for an electronic device for clamping an inrush voltage induced by hot plugging is disclosed. The clamp circuit includes a buffer unit and a clamp unit. The buffer unit is coupled to an input power end for receiving an inrush current of the inrush voltage. The clamp unit is coupled to the input power end and the buffer unit for controlling the buffer unit to receive the inrush current according to an input voltage of the input power end.

    摘要翻译: 公开了一种用于钳位由热插拔引起的浪涌电压的电子装置的浪涌电压钳位电路。 钳位电路包括缓冲单元和钳位单元。 缓冲单元耦合到输入电源端,用于接收浪涌电压的浪涌电流。 钳位单元耦合到输入电源端和缓冲单元,用于控制缓冲单元根据输入电源端的输入电压接收浪涌电流。

    Full Bridge Circuit and DC Motor Capable of Fixing Output Voltage and Avoiding Reverse Current
    10.
    发明申请
    Full Bridge Circuit and DC Motor Capable of Fixing Output Voltage and Avoiding Reverse Current 有权
    全桥电路和直流电机,能够固定输出电压并避免反向电流

    公开(公告)号:US20070285038A1

    公开(公告)日:2007-12-13

    申请号:US11610506

    申请日:2006-12-14

    IPC分类号: H02P7/00

    CPC分类号: H02P6/085 H02P6/26

    摘要: A full bridge circuit includes a first switch, a second switch, a third switch, a fourth switch, a first controller, a second controller, a first operational amplifier, a first multiplexer, a second operational amplifier, and a second multiplexer. The first controller includes a first output coupled to the first switch. The second controller includes a first output coupled to the third switch. The first operational amplifier includes a first input coupled to the first switch and the second switch, and a second input for receiving a first reference voltage. The second operational amplifier includes a first input coupled to the third switch and the fourth switch, and a second input for receiving a second reference voltage. The first multiplexer is coupled to the first operational amplifier, the first controller, and the second switch. The second multiplexer is coupled to the second operational amplifier, the second controller, and the fourth switch.

    摘要翻译: 全桥电路包括第一开关,第二开关,第三开关,第四开关,第一控制器,第二控制器,第一运算放大器,第一多路复用器,第二运算放大器和第二多路复用器。 第一控制器包括耦合到第一开关的第一输出。 第二控制器包括耦合到第三开关的第一输出。 第一运算放大器包括耦合到第一开关和第二开关的第一输入端和用于接收第一参考电压的第二输入端。 第二运算放大器包括耦合到第三开关和第四开关的第一输入端和用于接收第二参考电压的第二输入端。 第一多路复用器耦合到第一运算放大器,第一控制器和第二开关。 第二多路复用器耦合到第二运算放大器,第二控制器和第四开关。