公开(公告)号：US08421511B2

公开(公告)日：2013-04-16

申请号：US12909838

申请日：2010-10-22

Applicant: Li-Min Lee ,  Shian-Sung Shiu ,  Chung-Che Yu ,  Ji-Ming Chen

Inventor： Li-Min Lee ,  Shian-Sung Shiu ,  Chung-Che Yu ,  Ji-Ming Chen

IPC: H03K7/08

CPC classification number: H02M1/08

Abstract: A pulse width modulation signal controlling apparatus including a signal pin, a core circuit, a setting judging circuit, a signal adjusting and selecting circuit, and a timer circuit is disclosed. The signal pin is connected to a setting device for receiving an external input signal. The setting judging circuit receives and compares a setting signal with a reference value to generate a setting judgment result. The signal adjusting and selecting circuit couples the signal pin to the setting judging circuit and adjusts the external input signal into the setting signal according to the setting device in a first state, and couples the signal pin to the core circuit in a second state. The timer circuit controls the state of the signal adjusting and selecting circuit, wherein the timer circuit sets the signal adjusting and selecting circuit in the first state during a predetermined time period.

Abstract translation: 公开了一种包括信号引脚，核心电路，设定判断电路，信号调整和选择电路以及定时器电路的脉宽调制信号控制装置。 信号引脚连接到用于接收外部输入信号的设置装置。 设置判断电路接收并将设置信号与参考值进行比较以产生设置判断结果。 信号调节和选择电路将信号引脚耦合到设置判断电路，并根据第一状态的设置装置将外部输入信号调整为设置信号，并将信号引脚耦合到核心电路处于第二状态。 定时器电路控制信号调整和选择电路的状态，其中定时器电路在预定时间段内将信号调节和选择电路设置在第一状态。

公开(公告)号：US08334661B2

公开(公告)日：2012-12-18

申请号：US12886504

申请日：2010-09-20

Applicant: Li-Min Lee ,  Chung-Che Yu ,  Shian-Sung Shiu ,  Xi Tu

Inventor： Li-Min Lee ,  Chung-Che Yu ,  Shian-Sung Shiu ,  Xi Tu

IPC: G05F1/00

CPC classification number: H05B33/0815 ,  H05B33/0848

Abstract: An exemplary embodiment of the invention provides a set of an initial value of an error amplifying signal in the feedback control circuit for feedback control, so as to reduce the time and the amplitude of oscillation of the error amplifying signal. Accordingly, a feedback control circuit and a power converting circuit provided in an exemplary embodiment of the invention not only reduce the degree and the time of overshoot but also provide accurate and stable feedback control.

Abstract translation: 本发明的示例性实施例提供了用于反馈控制的反馈控制电路中的误差放大信号的初始值的集合，以便减少误差放大信号的时间和振幅。 因此，在本发明的示例性实施例中提供的反馈控制电路和功率转换电路不仅减小过冲的程度和时间，而且还提供准确和稳定的反馈控制。

公开(公告)号：US20120268088A1

公开(公告)日：2012-10-25

申请号：US13284974

申请日：2011-10-30

Applicant: Li-Min Lee ,  Chung-Che Yu ,  Shian-Sung Shiu ,  Chao Shao

Inventor： Li-Min Lee ,  Chung-Che Yu ,  Shian-Sung Shiu ,  Chao Shao

IPC: G05F1/46

CPC classification number: H02M3/1588 ,  H02M2001/0022 ,  H02M2001/0025 ,  Y02B70/1466

Abstract: A constant on-time period of a DC to DC buck converting controller is adjusted according to a level of a preset output voltage. Therefore, the DC to DC buck converting controller of the present invention is suitable for any applications with different requests of output voltages or different operating mode.

Abstract translation: DC-DC降压转换控制器的恒定导通时间段根据预设输出电压的电平进行调整。 因此，本发明的DC-DC降压转换控制器适用于具有不同输出电压或不同工作模式要求的任何应用。

公开(公告)号：US20120268011A1

公开(公告)日：2012-10-25

申请号：US13244653

申请日：2011-09-25

Applicant: Shian-Sung Shiu ,  Li-Min Lee ,  Chung-Che Yu ,  Xi Tu ,  Ying Wang

Inventor： Shian-Sung Shiu ,  Li-Min Lee ,  Chung-Che Yu ,  Xi Tu ,  Ying Wang

IPC: H05B37/02

CPC classification number: H05B33/0815 ,  H05B33/0827

Abstract: An LED driving circuit includes a first and a second LED modules, a first and a second switching converters, an extreme voltage detecting and selecting circuit, a current balance circuit and a controller. The first switching converter transforms electric power of an input power supply into a first output voltage for lighting the first LED module. The second switching converter transforms electric power of the input power supply into a second output voltage for lighting the second LED module. The current balance circuit balances the currents flowing through the first and the second LED modules. The extreme voltage detecting and selecting circuit detects the first and the second LED modules and selects to output one of detecting results. The controller controls the transforming of the first switching converter and the second switching converter to light the first and the second LED modules in response to the outputted detecting result.

Abstract translation: LED驱动电路包括第一和第二LED模块，第一和第二开关转换器，极值电压检测和选择电路，电流平衡电路和控制器。 第一开关转换器将输入电源的电力变换为第一输出电压以点亮第一LED模块。 第二开关转换器将输入电源的电力转换成用于照亮第二LED模块的第二输出电压。 电流平衡电路平衡流经第一和第二LED模块的电流。 极端电压检测和选择电路检测第一和第二LED模块，并选择输出检测结果之一。 控制器控制第一开关转换器和第二开关转换器的变换，以响应于输出的检测结果点亮第一和第二LED模块。

公开(公告)号：US20120105244A1

公开(公告)日：2012-05-03

申请号：US13013776

申请日：2011-01-25

Applicant: Lung-Hsun Song ,  Li-Min Lee

Inventor： Lung-Hsun Song ,  Li-Min Lee

IPC: G08B21/00 ,  G09G5/00 ,  H04B1/38

CPC classification number: G09G5/00 ,  G09G2340/0492 ,  G09G2380/14

Abstract: An electronic device includes a main body, a display module, a storage module, an input module, and a control module all assembled to the main body. The storage module is used for storing a plurality of image files. The control module is electrically connected to the display module, the input module, and the storage module. When the display module displays the image files, the control module drives the display module to adjust a viewing direction of the image files according to a format data of the image files, which is an exchangeable image file format (EXIF), and adjusts an input mode of the input module according to an operation status of the main body. An electronic device and an operation method thereof are also provided.

Abstract translation: 电子设备包括主体，显示模块，存储模块，输入模块和控制模块，其全部组装到主体。 存储模块用于存储多个图像文件。 控制模块电连接到显示模块，输入模块和存储模块。 当显示模块显示图像文件时，控制模块驱动显示模块根据作为可交换图像文件格式（EXIF）的图像文件的格式数据来调整图像文件的观看方向，并且调整输入 根据主体的运行状态输入模块的模式。 还提供了一种电子设备及其操作方法。

公开(公告)号：US20120104967A1

公开(公告)日：2012-05-03

申请号：US13118557

申请日：2011-05-30

Applicant: Li-Min Lee ,  Shian-Sung Shiu ,  Chung-Che Yu ,  Xi Tu

Inventor： Li-Min Lee ,  Shian-Sung Shiu ,  Chung-Che Yu ,  Xi Tu

IPC: H05B37/02 ,  H03K5/04

CPC classification number: H05B33/0824 ,  H05B33/0815

Abstract: A non-linear load driving circuit and a controller for controlling a conversion circuit to drive a non-linear load are provided. The controller includes a feedback unit, a pulse width control unit, and an overshoot reduction unit. The feedback unit generates a feedback signal according to a current feedback signal that represents a load current flowing through the non-linear load. The pulse width control unit generates a control signal according to the feedback signal to control a power output of the conversion circuit. The overshoot reduction unit generates an overshoot reduction signal when the load current changes from being smaller than to being greater than a predetermined value according to the current feedback signal. The pulse width control unit receives the overshoot reduction signal and reduces the duty cycle of the control signal accordingly. Thereby, stability of feedback control is improved and damage to circuit is prevented.

Abstract translation: 提供了非线性负载驱动电路和用于控制转换电路以驱动非线性负载的控制器。 控制器包括反馈单元，脉冲宽度控制单元和过冲减少单元。 反馈单元根据表示流过非线性负载的负载电流的电流反馈信号产生反馈信号。 脉冲宽度控制单元根据反馈信号产生控制信号，以控制转换电路的功率输出。 当负载电流根据电流反馈信号从小于大于预定值变化时，过冲减少单元产生过冲减小信号。 脉冲宽度控制单元接收过冲减小信号并相应地减小控制信号的占空比。 由此，能够提高反馈控制的稳定性，防止对电路的损坏。

公开(公告)号：US20110291575A1

公开(公告)日：2011-12-01

申请号：US13086365

申请日：2011-04-13

Applicant: Shian-Sung Shiu ,  Chung-Che Yu ,  Li-Min Lee

Inventor： Shian-Sung Shiu ,  Chung-Che Yu ,  Li-Min Lee

IPC: H05B37/02 ,  G05F1/00

CPC classification number: H05B33/0827 ,  H05B33/0815 ,  H05B33/089 ,  Y02B20/347

Abstract: A control circuit adapted to control a power converting circuit for stabilizing an output of the power converting circuit is provided. The control circuit includes a capacitor, a charging unit, a discharging unit, a feedback control unit, and a duty-cycle adjusting unit. The charging unit has a first current source coupled to the capacitor for charging the capacitor. The discharging unit is coupled to the capacitor for discharging the capacitor. The feedback control unit controls the charging unit to charge the capacitor according to a feedback signal which represents the output of the power converting circuit. The duty-cycle adjusting unit generates a control signal and adjusts a duty cycle of the control signal according to a voltage of the capacitor.

Abstract translation: 提供一种适于控制用于稳定电力转换电路的输出的功率转换电路的控制电路。 控制电路包括电容器，充电单元，放电单元，反馈控制单元和占空比调节单元。 充电单元具有耦合到电容器的用于对电容器充电的第一电流源。 放电单元耦合到用于放电电容器的电容器。 反馈控制单元控制充电单元根据表示功率转换电路的输出的反馈信号对电容器充电。 占空比调整单元生成控制信号，根据电容器的电压来调整控制信号的占空比。

公开(公告)号：US20110279103A1

公开(公告)日：2011-11-17

申请号：US12909838

申请日：2010-10-22

Applicant: Li-Min Lee ,  Shian-Sung Shiu ,  Chung-Che Yu ,  Ji-Ming Chen

Inventor： Li-Min Lee ,  Shian-Sung Shiu ,  Chung-Che Yu ,  Ji-Ming Chen

IPC: G05F1/10 ,  H03K3/01

CPC classification number: H02M1/08

Abstract: A pulse width modulation signal controlling apparatus including a signal pin, a core circuit, a setting judging circuit, a signal adjusting and selecting circuit, and a timer circuit is disclosed. The signal pin is connected to a setting device for receiving an external input signal. The setting judging circuit receives and compares a setting signal with a reference value to generate a setting judgment result. The signal adjusting and selecting circuit couples the signal pin to the setting judging circuit and adjusts the external input signal into the setting signal according to the setting device in a first state, and couples the signal pin to the core circuit in a second state. The timer circuit controls the state of the signal adjusting and selecting circuit, wherein the timer circuit sets the signal adjusting and selecting circuit in the first state during a predetermined time period.

Abstract translation: 公开了一种包括信号引脚，核心电路，设定判断电路，信号调整和选择电路以及定时器电路的脉宽调制信号控制装置。 信号引脚连接到用于接收外部输入信号的设置装置。 设置判断电路接收并将设置信号与参考值进行比较以产生设置判断结果。 信号调节和选择电路将信号引脚耦合到设置判断电路，并根据第一状态的设置装置将外部输入信号调整为设置信号，并将信号引脚耦合到核心电路处于第二状态。 定时器电路控制信号调整和选择电路的状态，其中定时器电路在预定时间段内将信号调节和选择电路设置在第一状态。

公开(公告)号：US20110279061A1

公开(公告)日：2011-11-17

申请号：US12886504

申请日：2010-09-20

Applicant: Li-Min Lee ,  Chung-Che Yu ,  Shian-Sung Shiu ,  Xi Tu

Inventor： Li-Min Lee ,  Chung-Che Yu ,  Shian-Sung Shiu ,  Xi Tu

IPC: H05B41/36

CPC classification number: H05B33/0815 ,  H05B33/0848

Abstract: An exemplary embodiment of the invention provides a set of an initial value of an error amplifying signal in the feedback control circuit for feedback control, so as to reduce the time and the amplitude of oscillation of the error amplifying signal. Accordingly, a feedback control circuit and a power converting circuit provided in an exemplary embodiment of the invention not only reduce the degree and the time of overshoot but also provide accurate and stable feedback control.

Abstract translation: 本发明的示例性实施例提供了用于反馈控制的反馈控制电路中的误差放大信号的初始值的集合，以便减小误差放大信号的时间和振荡幅度。 因此，在本发明的示例性实施例中提供的反馈控制电路和功率转换电路不仅减小过冲的程度和时间，而且还提供准确和稳定的反馈控制。

公开(公告)号：US20110089865A1

公开(公告)日：2011-04-21

申请号：US12902290

申请日：2010-10-12

Applicant: CHEN-HSUNG WANG ,  CHUNG-CHE YU ,  LI-MIN LEE ,  SHIAN-SUNG SHIU

Inventor： CHEN-HSUNG WANG ,  CHUNG-CHE YU ,  LI-MIN LEE ,  SHIAN-SUNG SHIU

IPC: H05B41/36 ,  H03K17/56 ,  H03K17/687 ,  H03K17/60

CPC classification number: H05B33/0827

Abstract: A load driving circuit and a multi-load feedback circuit is disclosed. The load driving circuit and the multi-load feedback circuit are adapted to drive a LED module that has a current balancing circuit for balancing the currents flowing through LEDs. The load driving circuit and the multi-load feedback circuit modules the electric power transmitted by the LED driving apparatus to a LED module according to voltage level(s) of current balancing terminals having insufficient voltage in the current balancing circuit, and so the voltage levels of the current balancing terminals are higher than or equal to a preset voltage level, further increasing the efficiency thereof.

Abstract translation: 公开了一种负载驱动电路和多负载反馈电路。 负载驱动电路和多负载反馈电路适于驱动具有用于平衡流过LED的电流的电流平衡电路的LED模块。 负载驱动电路和多负载反馈电路根据电流平衡电路中具有不足电压的电流平衡端子的电压电平将由LED驱动装置传输的电力模块组合到LED模块，因此电压电平 的电流平衡端子高于或等于预设电压电平，进一步提高其效率。