公开(公告)号：US08692475B2

公开(公告)日：2014-04-08

申请号：US13569749

申请日：2012-08-08

申请人： Yen-Hui Wang

发明人： Yen-Hui Wang

IPC分类号： H05B37/00

CPC分类号： H05B33/083

摘要： A PFC LED driver capable of reducing current ripple, comprising: a current source unit, having a control terminal coupled to a control voltage, which is a ratio of a full-wave rectified line input voltage, a first channel terminal coupled to a power line, and a second channel terminal used to generate an output current according to the control voltage; and at least one LED load unit, being in series with the current source unit, wherein each of the at least one LED load unit comprises: a first load, including a first parallel combination of an LED module and a capacitor, wherein the LED module has at least one light emitting diode; a diode, being in a first series combination with the first load; and a switch, being in a second parallel combination with the second series combination.

摘要翻译： 一种能够减少电流纹波的PFC LED驱动器，包括：电流源单元，其具有耦合到控制电压的控制端子，所述控制端子是全波整流线路输入电压的比率，耦合到电力线的第一通道端子 以及用于根据控制电压产生输出电流的第二通道端子; 以及与所述电流源单元串联的至少一个LED负载单元，其中所述至少一个LED负载单元中的每一个包括：包括LED模块和电容器的第一并联组合的第一负载，其中所述LED模块 具有至少一个发光二极管; 二极管，与第一负载处于第一串联组合; 以及与第二串联组合处于第二并联组合的开关。

公开(公告)号：US07656217B2

公开(公告)日：2010-02-02

申请号：US11934792

申请日：2007-11-05

申请人： Yen-Hui Wang ,  Ching-Rong Chang

发明人： Yen-Hui Wang ,  Ching-Rong Chang

IPC分类号： H03K5/08 ,  H03L5/00

CPC分类号： H03K5/08 ,  H03K5/24

摘要： A voltage level clamping circuit which can be implemented in an integrated circuit (IC) and a high-speed comparator module, wherein the IC includes a parasitic diode coupled between a first voltage source and a second voltage source. The voltage level clamping circuit includes a switch module coupled between the first voltage source and the second voltage source and a comparator module having an output terminal coupled to the switch module, a first input terminal coupled to the first voltage source, and a second input terminal coupled to the second voltage source, for comparing a voltage level of the first voltage source with a voltage level of the second voltage source to generate an output signal, and transmitting the output signal to the switch module to control a conducting state of the switch module to selectively clamp the voltage level of the second voltage source.

摘要翻译： 一种可以在集成电路（IC）和高速比较器模块中实现的电压电平钳位电路，其中IC包括耦合在第一电压源和第二电压源之间的寄生二极管。 电压电平钳位电路包括耦合在第一电压源和第二电压源之间的开关模块和具有耦合到开关模块的输出端子的比较器模块，耦合到第一电压源的第一输入端子和第二输入端子 耦合到所述第二电压源，用于将所述第一电压源的电压电平与所述第二电压源的电压电平进行比较以产生输出信号，以及将所述输出信号发送到所述开关模块以控制所述开关模块的导通状态 以选择性地钳位第二电压源的电压电平。

公开(公告)号：US20090256545A1

公开(公告)日：2009-10-15

申请号：US12336537

申请日：2008-12-17

申请人： Yen-Hui Wang ,  Chi-Hao Wu ,  Chia-Chieh Hung ,  Chin-Yen Lin

发明人： Yen-Hui Wang ,  Chi-Hao Wu ,  Chia-Chieh Hung ,  Chin-Yen Lin

IPC分类号： G05F5/00

CPC分类号： H02M3/33507

摘要： A current-level controlling device for a power supply includes a reception end for receiving a current sense signal, a reference voltage generator for generating a reference voltage, an adaptive reference voltage generator, coupled to the reference voltage generator and the reception end, for adjusting the reference voltage according to variation of peak values of the current sense signal, so as to generate an adaptive reference voltage, a comparator, coupled to the reception end and the adaptive reference voltage generator, for comparing the current sense signal and the adaptive reference voltage, to generate a comparison result, and a control unit, coupled to the comparator, for controlling a switch transistor of the power supply according to the comparison result.

摘要翻译： 用于电源的电流电平控制装置包括用于接收电流感测信号的接收端，用于产生参考电压的参考电压发生器，耦合到参考电压发生器和接收端的自适应参考电压发生器，用于调整 根据电流检测信号的峰值的变化产生参考电压，以产生耦合到接收端和自适应参考电压发生器的自适应参考电压，比较器，用于比较电流检测信号和自适应参考电压 ，以产生比较结果，以及耦合到比较器的控制单元，用于根据比较结果控制电源的开关晶体管。

公开(公告)号：US06404374B1

公开(公告)日：2002-06-11

申请号：US09689674

申请日：2000-10-13

申请人： Chu-Chiao Yu ,  Her-Y Shih ,  Yen-Hui Wang

发明人： Chu-Chiao Yu ,  Her-Y Shih ,  Yen-Hui Wang

IPC分类号： H03M136

CPC分类号： H03M1/0646 ,  H03M1/36

摘要： A comparator circuit used in an analog-to-digital converter includes an input voltage signal line; a reference voltage signal line; a plurality of comparators connected to said input voltage signal line and said reference voltage signal line; a plurality of amplifiers corresponding separately to each of said plurality of comparators and connected respectively between said input voltage signal lines, said reference voltage signal lines, and their corresponding comparators; and a thermocode channel connected to outputs of said plurality of comparators. A plurality of resistors with resistances in a constant ratio are provided in said reference voltage signal line and each is connected between the inputs of two adjacent amplifiers. A plurality of averaging capacitors are provided and each is connected between the outputs of two adjacent comparators; wherein said plurality of averaging capacitors may have the same capacitance.

摘要翻译： 在模数转换器中使用的比较器电路包括输入电压信号线; 参考电压信号线; 连接到所述输入电压信号线和所述参考电压信号线的多个比较器; 多个放大器分别对应于所述多个比较器中的每一个并分别连接在所述输入电压信号线，所述参考电压信号线及其对应的比较器之间; 以及连接到所述多个比较器的输出端的热电极通道。 在所述参考电压信号线中提供具有恒定比例的电阻的多个电阻器，并且每个电阻器连接在两个相邻放大器的输入端之间。 提供多个平均电容器并且各自连接在两个相邻比较器的输出之间; 其中所述多个平均电容器可以具有相同的电容。

公开(公告)号：US20130291690A1

公开(公告)日：2013-11-07

申请号：US13460935

申请日：2012-05-01

申请人： Yen-Hui Wang ,  Sin-Heng Wang ,  Tsun-Te Wang

发明人： Yen-Hui Wang ,  Sin-Heng Wang ,  Tsun-Te Wang

IPC分类号： B25B13/06 ,  B25B13/00

CPC分类号： B25B13/06 ,  B25B13/48 ,  B25B23/00 ,  B60B29/003

摘要： A socket wrench includes a handle and an actuating head connected with the handle. The handle has a first end provided with a mounting portion and a second end provided with a grip. The mounting portion of the handle has an inner wall provided with a pivot hole pivotally mounted on the actuating head and has an outer wall provided with a first driving arm and a second driving arm. The actuating head has an upper end provided with an extension which has a distal end provided with an elongate guide slot. Each of the first driving arm and the second driving arm of the handle is slidably mounted in the guide slot of the actuating head. The actuating head has a lower end inserted into a socket which is mounted on one bolt of a wheel.

摘要翻译： 套筒扳手包括手柄和与把手连接的致动头。 手柄具有设置有安装部分的第一端和设置有把手的第二端。 手柄的安装部分具有设置有可枢转地安装在致动头上的枢轴孔的内壁，并且具有设置有第一驱动臂和第二驱动臂的外壁。 致动头具有设置有延伸部的上端，该延伸部的远端设置有细长的导槽。 手柄的第一驱动臂和第二驱动臂中的每一个可滑动地安装在致动头的引导槽中。 致动头具有插入到安装在车轮的一个螺栓上的插座中的下端。

公开(公告)号：US08536850B2

公开(公告)日：2013-09-17

申请号：US12880380

申请日：2010-09-13

申请人： Yen-Hui Wang ,  Wei-Chuan Su ,  Yu-Wen Chang

发明人： Yen-Hui Wang ,  Wei-Chuan Su ,  Yu-Wen Chang

IPC分类号： G05F1/00 ,  H03K5/00 ,  H05B37/02 ,  H02M7/06

CPC分类号： H02M3/156

摘要： A high side controller capable of sensing input voltage and output voltage of a power conversion circuit, including: a first switch, having a control end and two channel ends, the control end being coupled to a gate signal, and one of the two channel ends being coupled to a voltage signal, wherein the voltage signal is proportional to a negative version of the input voltage when the gate signal is active; an inverting amplification circuit, having an input end coupled to the other one of the two channel ends, and an output end for providing a first processed voltage; and a first sample and hold circuit, having a control input end coupled to the gate signal, an input end coupled to the first processed voltage, and an output end for providing a first sample voltage.

摘要翻译： 一种能够感测功率转换电路的输入电压和输出电压的高侧控制器，包括：具有控制端和两个通道端的第一开关，所述控制端耦合到栅极信号，并且所述两个通道端之一 耦合到电压信号，其中当栅极信号有效时，电压信号与输入电压的负型成正比; 反相放大电路，具有耦合到两个通道端中的另一个的输入端，以及用于提供第一处理电压的输出端; 以及第一采样和保持电路，其具有耦合到所述栅极信号的控制输入端，耦合到所述第一处理电压的输入端以及用于提供第一采样电压的输出端。

公开(公告)号：US20130187550A1

公开(公告)日：2013-07-25

申请号：US13354398

申请日：2012-01-20

申请人： Yuan-Hung Lo ,  Wei-Chuan Su ,  Yen-Hui Wang

发明人： Yuan-Hung Lo ,  Wei-Chuan Su ,  Yen-Hui Wang

IPC分类号： H05B37/02

CPC分类号： H05B33/0824 ,  H05B33/089

摘要： An LED lighting circuit capable of preventing thermal breakdown, including: an LED module, having a top end coupled to a line voltage; and a controller, coupled to the line voltage and a bottom end of the LED module, the controller including: an amplifier, having a positive input end coupled to an adjustable reference voltage; a transistor, having a gate terminal coupled to an output end of the amplifier, a first channel terminal coupled to the bottom end of the LED module, and a second channel terminal coupled to a negative input end of the amplifier; a current sensing resistor, coupled between the second channel terminal and a ground; and a reference voltage generator, used for generating the adjustable reference voltage according to the line voltage.

摘要翻译： 一种能够防止热击穿的LED照明电路，包括：具有耦合到线路电压的顶端的LED模块; 以及耦合到所述线路电压和所述LED模块的底端的控制器，所述控制器包括：放大器，具有耦合到可调参考电压的正输入端; 晶体管，其具有耦合到所述放大器的输出端的栅极端子，耦合到所述LED模块的底端的第一通道端子和耦合到所述放大器的负输入端的第二通道端子; 耦合在第二通道端子和地之间的电流检测电阻器; 和参考电压发生器，用于根据线路电压产生可调参考电压。

公开(公告)号：US20120306404A1

公开(公告)日：2012-12-06

申请号：US13152116

申请日：2011-06-02

申请人： Yuan-Hung Lo ,  Yen-Hui Wang ,  Wei-Chuan Su

发明人： Yuan-Hung Lo ,  Yen-Hui Wang ,  Wei-Chuan Su

IPC分类号： H05B37/02

CPC分类号： H05B33/083

摘要： An LED driver circuit, including: an LED load, having a top end, a middle end, and a bottom end, wherein the top end is coupled to a line voltage; and a variable load device, having a first input end, a second input end, and an output end, wherein the first input end is coupled to the middle end of the LED load for receiving a first current, the second input end is coupled to the bottom end of the LED load for receiving a second current, and the output end is for providing an output current, which equals the sum of the first current and the second current, and wherein the first current increases/decreases as the second current decreases/increases.

摘要翻译： 一种LED驱动器电路，包括：LED负载，具有顶端，中端和底端，其中所述顶端耦合到线路电压; 以及具有第一输入端，第二输入端和输出端的可变负载装置，其中所述第一输入端耦合到所述LED负载的中端以接收第一电流，所述第二输入端耦合到 用于接收第二电流的LED负载的底端，并且输出端用于提供等于第一电流和第二电流的和的输出电流，并且其中第一电流随着第二电流减小而增加/减小 /增加。

公开(公告)号：US20120299570A1

公开(公告)日：2012-11-29

申请号：US13118208

申请日：2011-05-27

申请人： Chia-Chieh Hung ,  Yen-Hui Wang

发明人： Chia-Chieh Hung ,  Yen-Hui Wang

IPC分类号： G05F1/618

CPC分类号： H02M1/4208 ,  Y02B70/126 ,  Y02P80/112

摘要： A fixed dead time PFC controller, comprising: an amplitude normalization circuit, used to generate a normalized signal according to a full-wave rectified input voltage; a comparator circuit, used to compare the normalized signal with a threshold voltage to generate a select signal, wherein the select signal exhibits a first state when the normalized signal is higher than the threshold voltage, and a second state when the normalized signal is lower than the threshold voltage; and a driving signal selection circuit, having a first input end coupled to a first driving signal, a second input end coupled to a second driving signal, a control end coupled to the select signal, and an output end for outputting a gate driving signal.

摘要翻译： 一种固定死区PFC控制器，包括：振幅归一化电路，用于根据全波整流输入电压产生归一化信号; 比较器电路，用于将归一化信号与阈值电压进行比较以产生选择信号，其中当归一化信号高于阈值电压时，选择信号呈现第一状态，当归一化信号低于阈值电压时，第二状态 阈值电压; 以及驱动信号选择电路，其具有耦合到第一驱动信号的第一输入端，耦合到第二驱动信号的第二输入端，耦合到选择信号的控制端以及用于输出栅极驱动信号的输出端。

公开(公告)号：US08044651B2

公开(公告)日：2011-10-25

申请号：US12331529

申请日：2008-12-10

申请人： Yen-Hui Wang ,  Chin-Yen Lin ,  Chia-Chieh Hung ,  Yu-Min Shih

发明人： Yen-Hui Wang ,  Chin-Yen Lin ,  Chia-Chieh Hung ,  Yu-Min Shih

IPC分类号： G05F1/40

CPC分类号： H02M3/33507 ,  H02M2001/0032 ,  H03K7/08 ,  Y02B70/16 ,  Y10T307/50

摘要： This patent discloses an efficient PWM controller for generating a pulse signal in response to a feedback signal, capable of operating in a normal mode or a green mode, comprising: a capacitor for building a saw-tooth signal by current integration, the saw-tooth signal having a ramp-up period and a ramp-down period; a first composite current source for the ramp-up period, detachable into a first constant current source and a first variable current source; and a second composite current source for the ramp-down period, detachable into a second constant current source and a second variable current source; wherein, the first variable current source is attached to the first constant current source and the second variable current source is attached to the second constant current source respectively in the green mode.

摘要翻译： 该专利公开了一种有效的PWM控制器，用于响应于能够以正常模式或绿色模式操作的反馈信号产生脉冲信号，包括：用于通过电流积分建立锯齿信号的电容器，锯齿 信号具有斜坡上升周期和斜坡下降周期; 用于所述斜坡上升周期的第一复合电流源，可分离成第一恒定电流源和第一可变电流源; 以及用于所述斜坡下降周期的第二复合电流源，可分离成第二恒定电流源和第二可变电流源; 其中，所述第一可变电流源附接到所述第一恒定电流源，并且所述第二可变电流源分别以绿色模式附接到所述第二恒定电流源。