公开(公告)号：US20130099709A1

公开(公告)日：2013-04-25

申请号：US13323829

申请日：2011-12-13

Applicant: Ming-Jung Tsai ,  Kun-Min Chen ,  Ching-Sheng Li

Inventor： Ming-Jung Tsai ,  Kun-Min Chen ,  Ching-Sheng Li

IPC: H02P7/00

CPC classification number: H02P7/29

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20130038973A1

公开(公告)日：2013-02-14

申请号：US13325066

申请日：2011-12-14

Applicant: Ming-Jung Tsai ,  Kun-Min Chen

Inventor： Ming-Jung Tsai ,  Kun-Min Chen

IPC: H02H9/04

CPC classification number: H02H9/004

Abstract: An over voltage protection circuit is disclosed. The over voltage protection circuit comprises an input end, coupled to an input power, for receiving an input voltage provided by the input power; and a driving module, coupled between the input end and a ground end, for generating a discharging current when the input voltage is larger than a predefined voltage, to reduce the input voltage to the predefined voltage.

Abstract translation: 公开了一种过电压保护电路。 过电压保护电路包括耦合到输入功率的输入端，用于接收由输入功率提供的输入电压; 以及耦合在输入端和接地端之间的驱动模块，用于当输入电压大于预定电压时产生放电电流，以将输入电压减小到预定电压。

公开(公告)号：US08154233B2

公开(公告)日：2012-04-10

申请号：US12327814

申请日：2008-12-04

Applicant: Chia-Tai Yang ,  Ching-Sheng Li ,  Kun-Min Chen ,  Tzu-Cheng Teng

Inventor： Chia-Tai Yang ,  Ching-Sheng Li ,  Kun-Min Chen ,  Tzu-Cheng Teng

IPC: H02P6/04

CPC classification number: H02P6/18 ,  H02P6/20

Abstract: A sensorless method for starting a three-phase brushless direct-current motor includes generating a start-up control signal, a start mode selection signal, and a control signal commutation period; switching to a start mode according to the start mode selection signal; implementing a position aligning procedure according to the start-up control signal and the control signal commutation period; detecting a zero crossing point of back electromotive forces during each control signal commutation period; outputting a sensorless mode selection signal while detecting the zero crossing points of the back electromotive forces during consecutive control signal commutation periods; switching to a sensorless mode according to the sensorless mode selection signal; and detecting a zero crossing point of back electromotive forces in the sensorless mode to determine a starting result of the three-phase brushless direct-current motor.

Abstract translation: 用于启动三相无刷直流电动机的无传感器方法包括产生启动控制信号，起动模式选择信号和控制信号换向周期; 根据起动模式选择信号切换到启动模式; 根据启动控制信号和控制信号换向周期实现位置对准程序; 在每个控制信号换向期间检测反电动势的过零点; 在连续控制信号换向周期期间检测反电动势的过零点，输出无传感器模式选择信号; 根据无传感器模式选择信号切换到无传感器模式; 并且在无传感器模式下检测反电动势的过零点以确定三相无刷直流电动机的起动结果。

公开(公告)号：US20110062910A1

公开(公告)日：2011-03-17

申请号：US12647556

申请日：2009-12-28

Applicant: Ming-Jung Tsai ,  Ching-Sheng Li ,  Kun-Min Chen

Inventor： Ming-Jung Tsai ,  Ching-Sheng Li ,  Kun-Min Chen

IPC: H02P6/18

CPC classification number: H02P6/18

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20100244757A1

公开(公告)日：2010-09-30

申请号：US12512024

申请日：2009-07-30

Applicant: Ming-Jung Tsai ,  Ching-Sheng Li ,  Kun-Min Chen

Inventor： Ming-Jung Tsai ,  Ching-Sheng Li ,  Kun-Min Chen

IPC: H02P7/00

CPC classification number: H02P7/285 ,  H02P29/032

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20100176851A1

公开(公告)日：2010-07-15

申请号：US12475615

申请日：2009-06-01

Applicant: Shiue-Shr Jiang ,  Kun-Min Chen ,  Ming-Jung Tsai ,  Ching-Sheng Li

Inventor： Shiue-Shr Jiang ,  Kun-Min Chen ,  Ming-Jung Tsai ,  Ching-Sheng Li

IPC: H03K21/00 ,  H03K3/017

CPC classification number: H03K7/08

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20100090631A1

公开(公告)日：2010-04-15

申请号：US12327814

申请日：2008-12-04

Applicant: Chia-Tai Yang ,  Ching-Sheng Li ,  Kun-Min Chen ,  Tzu-Cheng Teng

Inventor： Chia-Tai Yang ,  Ching-Sheng Li ,  Kun-Min Chen ,  Tzu-Cheng Teng

IPC: H02P6/18 ,  H02P6/20

CPC classification number: H02P6/18 ,  H02P6/20

Abstract: A sensorless method for starting a three-phase brushless direct-current motor includes generating a start-up control signal, a start mode selection signal, and a control signal commutation period; switching to a start mode according to the start mode selection signal; implementing a position aligning procedure according to the start-up control signal and the control signal commutation period; detecting a zero crossing point of back electromotive forces during each control signal commutation period; outputting a sensorless mode selection signal while detecting the zero crossing points of the back electromotive forces during consecutive control signal commutation periods; switching to a sensorless mode according to the sensorless mode selection signal; and detecting a zero crossing point of back electromotive forces in the sensorless mode to determine a starting result of the three-phase brushless direct-current motor.

Abstract translation: 用于启动三相无刷直流电动机的无传感器方法包括产生启动控制信号，起动模式选择信号和控制信号换向周期; 根据起动模式选择信号切换到启动模式; 根据启动控制信号和控制信号换向周期实现位置对准程序; 在每个控制信号换向期间检测反电动势的过零点; 在连续控制信号换向周期期间检测反电动势的过零点，输出无传感器模式选择信号; 根据无传感器模式选择信号切换到无传感器模式; 并且在无传感器模式下检测反电动势的过零点以确定三相无刷直流电动机的起动结果。

公开(公告)号：US09184684B2

公开(公告)日：2015-11-10

申请号：US13609187

申请日：2012-09-10

Applicant: Ming-Jung Tsai ,  Kun-Min Chen ,  Ching-Sheng Li

Inventor： Ming-Jung Tsai ,  Kun-Min Chen ,  Ching-Sheng Li

IPC: H02P6/00 ,  H02P7/29 ,  H02P7/00

CPC classification number: H02P7/2913 ,  H02P7/04

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08441243B2

公开(公告)日：2013-05-14

申请号：US13025120

申请日：2011-02-10

Applicant: Kun-Min Chen ,  Ke-Tsung Chen ,  Ching-Sheng Li ,  Ming-Jung Tsai

Inventor： Kun-Min Chen ,  Ke-Tsung Chen ,  Ching-Sheng Li ,  Ming-Jung Tsai

IPC: G05F1/40

CPC classification number: H02M1/08 ,  H02M2001/0054 ,  H03K17/04206 ,  H03K17/122 ,  H03K17/6872 ,  Y02B70/1491

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20120274411A1

公开(公告)日：2012-11-01

申请号：US13172816

申请日：2011-06-29

Applicant: Chia-Tai Yang ,  Yi-Cheng Liu ,  Ching-Sheng Li ,  Kun-Min Chen ,  Ching-Shan Lu

Inventor： Chia-Tai Yang ,  Yi-Cheng Liu ,  Ching-Sheng Li ,  Kun-Min Chen ,  Ching-Shan Lu

IPC: H03K7/08

CPC classification number: H03K7/08

Abstract: The present invention discloses a pulse width modulation driving IC. The pulse width modulation driving IC includes a first pin, for receiving a first signal, a second pin, for receiving a second signal, a comparing unit, for comparing the first signal with a reference voltage, to generate a comparison result indicating a operating mode of the pulse width modulation driving IC, and an output unit, for outputting a pulse width modulation output signal according to the first signal, the second signal and the comparison result.

Abstract translation: 本发明公开了一种脉宽调制驱动IC。 脉宽调制驱动IC包括用于接收第一信号的第一引脚，用于接收第二信号的第二引脚，用于将第一信号与参考电压进行比较的比较单元，以产生指示操作模式的比较结果 以及输出单元，用于根据第一信号，第二信号和比较结果输出脉宽调制输出信号。