公开(公告)号：US20060203525A1

公开(公告)日：2006-09-14

申请号：US11431538

申请日：2006-05-11

申请人： Chung-che Yu ,  Li-Min Lee ,  Shih-chung Huang ,  Chien-pang Hung ,  Chih-shun Lee

发明人： Chung-che Yu ,  Li-Min Lee ,  Shih-chung Huang ,  Chien-pang Hung ,  Chih-shun Lee

IPC分类号： H02M3/24

CPC分类号： H02M7/53871 ,  H05B41/2825 ,  H05B41/2828 ,  Y02B20/186 ,  Y02B70/1441

摘要： A DC/AC inverter for transforming a DC power source to an AC power, which drives a load. The DC/AC inverter comprises a full-bridge switch circuitry, a resonant tank, a frequency generator and a driver circuit. The full-bridge switch circuitry is electrically connected to the DC power source to convert the DC voltage to a pulse signal. The full-bridge switch circuitry comprises a first power switch, a second power switch, a third power switch, and a fourth power switch. The resonant tank is electrically connected between the full-bridge switch circuitry and a load for boosting and filtering the pulse signal to generate an AC power supplied to the load. The frequency generator generates a pulse signal at one of at least two predetermined operating frequencies based on an operation state of the DC/AC inverter. The driver circuit is coupled to the frequency generator and provides four driving signals based on the pulse signal of the frequency generator for turning on and off the first power switch, the second power switch, the third power switch, and the fourth power switch respectively. The four driving signals have the same frequency, wherein the duty cycle of two of the four driving signals is smaller than 50% and the duty cycle of the other two of the four driving signals is larger than 50%.

摘要翻译： 一种DC / AC逆变器，用于将直流电源转换为驱动负载的交流电源。 DC / AC逆变器包括全桥开关电路，谐振箱，频率发生器和驱动电路。 全桥开关电路与DC电源电连接，将DC电压转换为脉冲信号。 全桥开关电路包括第一电源开关，第二电源开关，第三电源开关和第四电源开关。 谐振箱电连接在全桥开关电路和用于升压和滤波脉冲信号的负载之间以产生提供给负载的AC电力。 频率发生器基于DC / AC逆变器的操作状态，以至少两个预定工作频率中的一个产生脉冲信号。 驱动器电路耦合到频率发生器，并且基于频率发生器的脉冲信号提供四个驱动信号，以分别打开和关闭第一电源开关，第二电源开关，第三电源开关和第四电源开关。 四个驱动信号具有相同的频率，其中四个驱动信号中的两个的占空比小于50％，四个驱动信号中另外两个的占空比大于50％。

公开(公告)号：US20100123405A1

公开(公告)日：2010-05-20

申请号：US12693401

申请日：2010-01-25

申请人： Chung-che Yu ,  Shih-chung Huang ,  Chien-pang Hung ,  Chih-shun Lee

发明人： Chung-che Yu ,  Shih-chung Huang ,  Chien-pang Hung ,  Chih-shun Lee

IPC分类号： H05B41/36

CPC分类号： H02M7/53871 ,  H05B41/2825 ,  H05B41/2828 ,  Y02B20/186 ,  Y02B70/1441

摘要： A feedback circuit is utilized in a DC/AC inverter having a first power switch and a second power switch for driving a fluorescent lamp. The feedback circuit includes a protection circuit for disabling the first power switch and the second power switch when no fluorescent lamp is electrically connected, a first capacitor having a first terminal electrically connected to an output of the DC/AC inverter, a second capacitor having a first terminal electrically connected to a ground, and a second terminal electrically connected to a second terminal of the first capacitor, a diode having an anode electrically connected to the second terminals of the first and second capacitors, and a cathode electrically connected to the protection circuit, and a first resistor having a first terminal electrically connected to the cathode of the diode, and a second terminal electrically connected to the ground.

摘要翻译： 在具有用于驱动荧光灯的第一电源开关和第二电源开关的DC / AC逆变器中使用反馈电路。 所述反馈电路包括用于在没有荧光灯电连接时禁用所述第一电源开关和所述第二电源开关的保护电路，具有电连接到所述DC / AC逆变器的输出的第一端子的第一电容器，具有 电连接到地的第一端子和与第一电容器的第二端子电连接的第二端子，具有电连接到第一和第二电容器的第二端子的阳极的二极管，以及电连接到保护电路的阴极 以及第一电阻器，其具有电连接到二极管的阴极的第一端子和电连接到地的第二端子。

公开(公告)号：US07148633B2

公开(公告)日：2006-12-12

申请号：US10968857

申请日：2004-10-18

申请人： Chung-che Yu ,  Shih-chung Huang ,  Chien-pang Hung ,  Chih-shun Lee

发明人： Chung-che Yu ,  Shih-chung Huang ,  Chien-pang Hung ,  Chih-shun Lee

IPC分类号： H05B37/02

CPC分类号： H02M7/53871 ,  H05B41/2825 ,  H05B41/2828 ,  Y02B20/186 ,  Y02B70/1441

摘要： A DC/AC inverter provided for transforming a DC voltage source into an AC power source, wherein the AC signal is used for driving a fluorescent lamp. The inverter comprises a half-bridge switch circuitry electrically connected to the DC voltage source for outputting an AC signal, a resonant tank electrically connected between the half-bridge switch circuitry and the fluorescent lamp, for stepping up and filtering the AC signal into a high-voltage AC power source which is supplied to a load, and a controller feeding back an output of the fluorescent lamp, providing a pulse width modulation signal for turning on and off the half-bridge switch circuitry, such that the fluorescent lamp can operate consistently and provide a consistent brightness.

摘要翻译： 一种DC / AC逆变器，用于将DC电压源变换为AC电源，其中AC信号用于驱动荧光灯。 逆变器包括电连接到DC电压源的半桥开关电路，用于输出AC信号，电连接在半桥开关电路和荧光灯之间的谐振槽，用于将AC信号升压和滤波成高电平 提供给负载的电压AC电源，以及控制器反馈荧光灯的输出的控制器，提供用于打开和关闭半桥开关电路的脉宽调制信号，使得荧光灯可以一致地操作 并提供一致的亮度。

公开(公告)号：US07737642B2

公开(公告)日：2010-06-15

申请号：US11580186

申请日：2006-10-13

申请人： Chung-che Yu ,  Shih-chung Huang ,  Chien-pang Hung ,  Chih-shun Lee

发明人： Chung-che Yu ,  Shih-chung Huang ,  Chien-pang Hung ,  Chih-shun Lee

IPC分类号： H05B37/02

CPC分类号： H02M7/53871 ,  H05B41/2825 ,  H05B41/2828 ,  Y02B20/186 ,  Y02B70/1441

摘要： A DC/AC inverter provided for transforming a DC voltage source into an AC power source, wherein the AC signal is used for driving a fluorescent lamp. The inverter comprises a half-bridge switch circuitry electrically connected to the DC voltage source, for outputting an AC signal, a resonant tank electrically connected between the half-bridge switch circuitry and the fluorescent lamp, for stepping up and filtering the AC signal into a high-voltage AC power source which is supplied to a load, and a controller feeding back an output of the fluorescent lamp, providing a pulse width modulation signal for turning on and off the half-bridge switch circuitry, such that the fluorescent lamp can operate consistently and provide a consistent brightness.

摘要翻译： 一种DC / AC逆变器，用于将DC电压源变换为AC电源，其中AC信号用于驱动荧光灯。 逆变器包括电连接到DC电压源的半桥开关电路，用于输出AC信号，电连接在半桥开关电路和荧光灯之间的谐振槽，用于将AC信号加压和滤波成为 提供给负载的高压交流电源和控制器反馈荧光灯的输出，提供用于打开和关闭半桥开关电路的脉宽调制信号，使得荧光灯可以操作 始终如一地提供一致的亮度。

公开(公告)号：US20060083036A1

公开(公告)日：2006-04-20

申请号：US10968857

申请日：2004-10-18

申请人： Chung-che Yu ,  Shih-chung Huang ,  Chien-pang Hung ,  Chih-shun Lee

发明人： Chung-che Yu ,  Shih-chung Huang ,  Chien-pang Hung ,  Chih-shun Lee

IPC分类号： H02M3/24

CPC分类号： H02M7/53871 ,  H05B41/2825 ,  H05B41/2828 ,  Y02B20/186 ,  Y02B70/1441

摘要： An AC/DC inverter provided for transforming a DC power source into an AC power source, wherein the AC signal is used for driving a fluorescent filament. The inverter comprises a half-bridge switch electrically connected to the DC power source, wherein the half-bridge switch outputs the AC signal, a resonance groove circuit electrically connected to the half-bridge switch and the fluorescent filament, wherein the resonance groove circuit is provided for stepping up and filtering the AC signal into a high-voltage AC power source, providing a power for a load, and a controller feeding back an output of the fluorescent filament, providing a wavelength adjusting signal for controlling the conduction and cutting off of the half-bridge switch, such that the fluorescent filament can operate consistently and provide a consistent brightness.

摘要翻译： 一种用于将DC电源变换为AC电源的AC / DC逆变器，其中AC信号用于驱动荧光灯丝。 逆变器包括电连接到DC电源的半桥开关，其中半桥开关输出AC信号，电连接到半桥开关和荧光灯丝的谐振槽电路，其中谐振槽电路是 用于将AC信号升压和过滤成高压AC电源，为负载提供电力，并且控制器反馈荧光灯丝的输出，提供用于控制导通和切断的波长调节信号 半桥开关，使得荧光灯丝可以一致地操作并提供一致的亮度。

公开(公告)号：US20070029945A1

公开(公告)日：2007-02-08

申请号：US11580186

申请日：2006-10-13

申请人： Chung-che Yu ,  Shih-chung Huang ,  Chien-pang Hung ,  Chih-shun Lee

发明人： Chung-che Yu ,  Shih-chung Huang ,  Chien-pang Hung ,  Chih-shun Lee

IPC分类号： H05B41/36

CPC分类号： H02M7/53871 ,  H05B41/2825 ,  H05B41/2828 ,  Y02B20/186 ,  Y02B70/1441

摘要： A DC/AC inverter provided for transforming a DC voltage source into an AC power source, wherein the AC signal is used for driving a fluorescent lamp. The inverter comprises a half-bridge switch circuitry electrically connected to the DC voltage source, for outputting an AC signal, a resonant tank electrically connected between the half-bridge switch circuitry and the fluorescent lamp, for stepping up and filtering the AC signal into a high-voltage AC power source which is supplied to a load, and a controller feeding back an output of the fluorescent lamp, providing a pulse width modulation signal for turning on and off the half-bridge switch circuitry, such that the fluorescent lamp can operate consistently and provide a consistent brightness.

摘要翻译： 一种DC / AC逆变器，用于将DC电压源变换为AC电源，其中AC信号用于驱动荧光灯。 逆变器包括电连接到DC电压源的半桥开关电路，用于输出AC信号，电连接在半桥开关电路和荧光灯之间的谐振槽，用于将AC信号加压和滤波成为 提供给负载的高压交流电源和控制器反馈荧光灯的输出，提供用于打开和关闭半桥开关电路的脉宽调制信号，使得荧光灯可以操作 始终如一地提供一致的亮度。

公开(公告)号：US5746647A

公开(公告)日：1998-05-05

申请号：US745514

申请日：1996-11-12

申请人： Shih-chung Huang

发明人： Shih-chung Huang

IPC分类号： B24B41/04 ,  B24B45/00 ,  B24D5/16

CPC分类号： B24B41/042 ,  B24B45/00

摘要： A sleeve flange type mounting device for mounting a grinding wheel on a spindle of a grinding machine consists of a sleeve flange defining a sleeve portion and a flange portion, a pressing plate fitted on the sleeve portion for clamping the grinding wheel on the flange portion, a cover fitted on the pressing plate, three balance weights received in a circular recess defined by the pressing plate and each having a first arc-shaped side abutting against a far wall near a circumferential periphery of the pressing plate and a second arc-shaped side abutting against a circumferential periphery of the cover, and a nut threadedly engaging an extremity of the sleeve portion and exerting a compressive force on the cover.

摘要翻译： 用于将研磨轮安装在研磨机的主轴上的套筒凸缘型安装装置包括限定套筒部分和凸缘部分的套筒凸缘，安装在套筒部分上用于将磨轮夹紧在凸缘部分上的压板， 安装在所述按压板上的盖，三个平衡重接收在由所述按压板限定的圆形凹部中，并且每个具有抵靠靠近所述按压板的圆周周边的远壁的第一弧形侧和第二弧形侧 与盖的圆周边缘抵接，以及与套筒部分的末端螺纹接合并在盖上施加压缩力的螺母。