公开(公告)号：US07940107B2

公开(公告)日：2011-05-10

申请号：US12398190

申请日：2009-03-05

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

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

IPC: H03L5/00

CPC classification number: H02H9/004 ,  Y10S323/908

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20100045357A1

公开(公告)日：2010-02-25

申请号：US12398190

申请日：2009-03-05

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

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

IPC: H03L5/00

CPC classification number: H02H9/004 ,  Y10S323/908

Abstract: 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.

Abstract translation: 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。

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：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：US08157536B2

公开(公告)日：2012-04-17

申请号：US12344190

申请日：2008-12-24

Applicant: Tzu-Cheng Teng ,  Ching-Sheng Li ,  Ming-Jung Tsai ,  Shen-Min Lo

Inventor： Tzu-Cheng Teng ,  Ching-Sheng Li ,  Ming-Jung Tsai ,  Shen-Min Lo

IPC: F04B49/00

CPC classification number: F04D27/004 ,  H02P7/29 ,  Y10S388/91 ,  Y10S388/934

Abstract: A rotating speed adjustment circuit for a heat dissipation fan includes a first node, a second node, a reception end for receiving a first control signal, a first resistor coupled to a voltage source and the first node, a second resistor coupled to the first node and the second node, a third resistor coupled to the second node and a ground end, a capacitor coupled to the first node and the ground end, a transistor coupled to the reception end, the second node and the ground end, an oscillator for generating an oscillating signal, and a comparator for comparing a signal of the first node and the oscillating signal, so as to output a second control signal to control a rotating speed of the heat dissipation fan.

Abstract translation: 用于散热风扇的转速调节电路包括第一节点，第二节点，用于接收第一控制信号的接收端，耦合到电压源和第一节点的第一电阻器，耦合到第一节点的第二电阻器 并且所述第二节点，耦合到所述第二节点的第三电阻器和接地端，耦合到所述第一节点和所述接地端的电容器，耦合到所述接收端，所述第二节点和所述接地端的晶体管，用于产生 振荡信号和用于比较第一节点和振荡信号的信号的比较器，以便输出第二控制信号以控制散热风扇的转速。

公开(公告)号：US20100054964A1

公开(公告)日：2010-03-04

申请号：US12344190

申请日：2008-12-24

Applicant: Tzu-Cheng Teng ,  Ching-Sheng Li ,  Ming-Jung Tsai ,  Shen-Min Lo

Inventor： Tzu-Cheng Teng ,  Ching-Sheng Li ,  Ming-Jung Tsai ,  Shen-Min Lo

IPC: F04B17/00 ,  H02P7/00

CPC classification number: F04D27/004 ,  H02P7/29 ,  Y10S388/91 ,  Y10S388/934

Abstract: A rotating speed adjustment circuit for a heat dissipation fan includes a first node, a second node, a reception end for receiving a first control signal, a first resistor coupled to a voltage source and the first node, a second resistor coupled to the first node and the second node, a third resistor coupled to the second node and a ground end, a capacitor coupled to the first node and the ground end, a transistor coupled to the reception end, the second node and the ground end, an oscillator for generating an oscillating signal, and a comparator for comparing a signal of the first node and the oscillating signal, so as to output a second control signal to control a rotating speed of the heat dissipation fan.

Abstract translation: 用于散热风扇的转速调节电路包括第一节点，第二节点，用于接收第一控制信号的接收端，耦合到电压源和第一节点的第一电阻器，耦合到第一节点的第二电阻器 并且所述第二节点，耦合到所述第二节点的第三电阻器和接地端，耦合到所述第一节点和所述接地端的电容器，耦合到所述接收端，所述第二节点和所述接地端的晶体管，用于产生 振荡信号和用于比较第一节点和振荡信号的信号的比较器，以便输出第二控制信号以控制散热风扇的转速。