公开(公告)号：US08264184B2

公开(公告)日：2012-09-11

申请号：US12496204

申请日：2009-07-01

申请人： Yen-Hui Wang ,  Chang-Ling Sha ,  Ko-Ming Lin ,  Ko-Yen Lee

发明人： Yen-Hui Wang ,  Chang-Ling Sha ,  Ko-Ming Lin ,  Ko-Yen Lee

IPC分类号： H02P1/04

CPC分类号： G05D23/1917 ,  G06F1/206 ,  H05K7/20209

摘要： A low-pin count fan speed control system and a method thereof include primarily an activation unit to drive a fan to operate. When the fan starts completely, the fan slows down to a pre-determined rotation speed through an idle speed regulation unit. After achieving a pre-determined temperature through a temperature transition unit, the fan speed beings to increase from the idle speed. When the fan is operating, the rotation speed is properly increased in proportion to the temperature, using a positive temperature regulation slope unit. Therefore, through this method, the rotation speed will not be decreased by foreign objects when the fan is operating and a computer host can be provided with proper heat dissipation.

摘要翻译： 低引脚数风扇速度控制系统及其方法主要包括驱动风扇操作的激活单元。 当风扇完全启动时，风扇通过怠速调节单元减慢到预定的转速。 在通过温度转换单元达到预定温度后，风扇转速从空转速度增加。 当风扇运行时，使用正温度调节斜率单元，转速与温度成正比地增加。 因此，通过这种方法，当风扇运行并且计算机主机可以被提供适当的散热时，旋转速度将不会被异物减少。

公开(公告)号：US08253350B2

公开(公告)日：2012-08-28

申请号：US12560790

申请日：2009-09-16

申请人： Chia-Chien Hung ,  Yen-Hui Wang ,  Ko-Yen Lee

发明人： Chia-Chien Hung ,  Yen-Hui Wang ,  Ko-Yen Lee

IPC分类号： G05F1/00

CPC分类号： H05B33/0818 ,  Y02B20/346

摘要： The present invention discloses an open loop LED driving circuit, having a turn-on period and a turn-off period, the circuit comprising: a power stage, used to store a magnetic energy supplied from a voltage source during the turn-on period and deliver the magnetic energy to a set of LEDs during the turn-off period; and a control unit, having a turn-off period control terminal coupled to the voltage source, and a channel of which a first terminal is coupled to the power stage and a second terminal is coupled to a reference ground, wherein the channel is switched on at a time according to the voltage of the voltage source to determine the turn-off period.

摘要翻译： 本发明公开了一种开环LED驱动电路，具有导通周期和关断周期，该电路包括：功率级，用于存储在导通周期期间从电压源提供的磁能;以及 在关闭期间将磁能传递给一组LED; 以及控制单元，具有耦合到所述电压源的关断周期控制端，以及其第一端耦合到所述功率级的通道，以及第二端耦合到参考地，其中所述通道被接通 一次根据电压源的电压来确定关断周期。

公开(公告)号：US08129968B2

公开(公告)日：2012-03-06

申请号：US12707359

申请日：2010-02-17

申请人： Yen-Hui Wang ,  Wei-Chun Hsiao

发明人： Yen-Hui Wang ,  Wei-Chun Hsiao

IPC分类号： G05F1/40

CPC分类号： G06F1/26 ,  G06F1/28

摘要： The present invention discloses an integrated circuit for system calibration, applicable to a power supply, comprising: a comparison module, having a feedback input end coupled to a feedback signal and a reference input end coupled to an analog reference signal for delivering a status signal; a detection and control module, for generating a reference signal and a calibration value according to the status signal, wherein the calibration value is derived from the reference signal at an instant when the status signal changes state, and the calibration value is stored into a calibration value register; a memory module, for receiving, storing and outputting the calibration value; and a reference signal generator, receiving the calibration value to provide the analog reference signal. The present invention can therefore be used to automatically calibrate a system with fewer external components to provide qualified systems.

摘要翻译： 本发明公开了一种用于系统校准的集成电路，可应用于电源，包括：比较模块，其具有耦合到反馈信号的反馈输入端和耦合到用于传送状态信号的模拟参考信号的参考输入端; 检测和控制模块，用于根据状态信号产生参考信号和校准值，其中在状态信号改变状态的瞬间从参考信号导出校准值，并将校准值存储到校准 价值注册 存储模块，用于接收，存储和输出校准值; 以及参考信号发生器，接收校准值以提供模拟参考信号。 因此，本发明可用于自动校准具有较少外部组件的系统以提供合格的系统。

公开(公告)号：US08018742B2

公开(公告)日：2011-09-13

申请号：US12365202

申请日：2009-02-04

申请人： Ko-Ming Lin

发明人： Ko-Ming Lin

IPC分类号： H02M3/335

CPC分类号： H02M3/33507 ,  H02M2001/0032 ,  Y02B70/16

摘要： The present invention discloses a full-range-duty PWM signal generation method for an AC-to-DC power conversion, comprising the steps of: generating a saw-tooth signal with a predetermined valley voltage; generating a reference signal according to at least one of a current feedback signal and a voltage feedback signal; and generating a PWM signal according to voltage comparison of the saw-tooth signal and the reference signal. Furthermore, the present invention also provides a full-range-duty PWM signal generation apparatus for an AC-to-DC power conversion, and a system using the full-range-duty PWM signal generation apparatus.

摘要翻译： 本发明公开了一种用于AC到DC电力转换的全范围占空比PWM信号产生方法，包括以下步骤：产生具有预定谷值电压的锯齿信号; 根据电流反馈信号和电压反馈信号中的至少一个产生参考信号; 并根据锯齿信号和参考信号的电压比较产生PWM信号。 此外，本发明还提供了一种用于AC到DC电力转换的全范围占空比PWM信号产生装置，以及使用全范围占空比PWM信号产生装置的系统。

公开(公告)号：US20110012536A1

公开(公告)日：2011-01-20

申请号：US12505731

申请日：2009-07-20

申请人： Ko-Ming Lin ,  Yen-Ping Wang ,  Pei-Yuan Chen ,  Wei-Chuan Su ,  Chia-Chieh Hung ,  Jian-Shen Li

发明人： Ko-Ming Lin ,  Yen-Ping Wang ,  Pei-Yuan Chen ,  Wei-Chuan Su ,  Chia-Chieh Hung ,  Jian-Shen Li

IPC分类号： H05B41/36

CPC分类号： H05B41/3925 ,  H05B37/0263

摘要： The present invention discloses an electronic ballast with dimming control from power line sensing for a fluorescent lamp, comprising: a control voltage generator, used to generate a control voltage according to a switching count of a power line; an oscillator, used to generate an oscillating signal, wherein the oscillating signal is of a fixed frequency and has a rising voltage portion and a falling voltage portion; and a comparator, used to generate a high side gating signal according to voltage comparison of the oscillating signal and the control voltage.

摘要翻译： 本发明公开了一种具有调光控制功能的电子镇流器，其特征在于包括：控制电压发生器，用于根据电力线的开关量产生控制电压; 用于产生振荡信号的振荡器，其中所述振荡信号是固定频率并具有上升电压部分和下降电压部分; 和比较器，用于根据振荡信号和控制电压的电压比较产生高端选通信号。

公开(公告)号：US20100321957A1

公开(公告)日：2010-12-23

申请号：US12486302

申请日：2009-06-17

申请人： Chang-Ling Sha ,  Ko-Ming Lin ,  Chi-Hao Wu ,  Huang-Chi Lin

发明人： Chang-Ling Sha ,  Ko-Ming Lin ,  Chi-Hao Wu ,  Huang-Chi Lin

IPC分类号： H02M3/335

CPC分类号： H02M3/33507 ,  H02M2001/0025 ,  H02M2001/0032 ,  Y02B70/16

摘要： The present invention discloses a standby power saving method for power module applications, comprising the steps of: generating a mode signal according to voltage comparison of a feedback signal and a threshold voltage, wherein the mode signal has a normal mode state and a standby mode state; generating a pulse signal according to the mode signal, wherein the pulse signal has a normal PWM mode responsive to the normal mode state of the mode signal, and a VCC mode responsive to the standby mode state of the mode signal; and generating a gating signal according to the pulse signal for driving a primary side power switch. The present invention also provides a standby power saving apparatus for power module applications.

摘要翻译： 本发明公开了一种用于功率模块应用的备用节能方法，包括以下步骤：根据反馈信号的电压比较产生模式信号和阈值电压，其中模式信号具有正常模式状态和待机模式状态 ; 根据模式信号产生脉冲信号，其中脉冲信号具有响应于模式信号的正常模式状态的正常PWM模式，以及响应于模式信号的待机模式状态的VCC模式; 以及根据用于驱动一次侧电源开关的脉冲信号产生选通信号。 本发明还提供了一种用于功率模块应用的备用节电装置。

公开(公告)号：US20090165316A1

公开(公告)日：2009-07-02

申请号：US11965632

申请日：2007-12-27

申请人： SHAN-NAN CHEN ,  KEE-WENG LAI

发明人： SHAN-NAN CHEN ,  KEE-WENG LAI

IPC分类号： B43L7/00 ,  G09G5/00

CPC分类号： B43L7/00 ,  G01B3/04 ,  G06F3/1438

摘要： The present invention discloses a measurement apparatus having a display device. The measurement apparatus comprises a control unit, a microprocessing circuit, a display device, and a power supply unit. The control unit is used to change the measurement unit in order to measure different lengths. The measurement apparatus having a display device further comprises a calculating device to provide calculation functionality.

摘要翻译： 本发明公开了一种具有显示装置的测量装置。 测量装置包括控制单元，微处理电路，显示装置和电源单元。 控制单元用于改变测量单位以测量不同的长度。 具有显示装置的测量装置还包括用于提供计算功能的计算装置。

公开(公告)号：US08450940B2

公开(公告)日：2013-05-28

申请号：US12784039

申请日：2010-05-20

申请人： Yen-Ping Wang ,  Pei-Yuan Chen ,  Ko-Ming Lin

发明人： Yen-Ping Wang ,  Pei-Yuan Chen ,  Ko-Ming Lin

IPC分类号： H05B37/02

CPC分类号： H05B41/298

摘要： A gas-discharge lamp controller utilizing a novel preheating phase control mechanism, having: a supply voltage tracking reference voltages generator, biased between a supply voltage and a reference ground, for generating a first reference voltage which is proportional to the supply voltage; and a control unit, for generating a high threshold signal according to the first reference voltage and a saw-tooth signal, the peak value of the saw-tooth signal being proportional to the supply voltage, wherein the control unit has a preheating phase, the high threshold signal is coupled with the first reference voltage during the preheating phase, and the time duration of the preheating phase is set by a predetermined number of periods of the saw-tooth signal.

摘要翻译： 一种利用新型预热相位控制机构的气体放电灯控制器，具有：供电电压跟踪参考电压发生器，其偏置在电源电压和参考地之间，用于产生与电源电压成比例的第一参考电压; 以及控制单元，用于根据第一参考电压和锯齿信号产生高阈值信号，锯齿信号的峰值与电源电压成比例，其中控制单元具有预热阶段， 高阈值信号在预热阶段与第一参考电压耦合，并且预热阶段的持续时间被设定为预定数量的锯齿信号周期。

公开(公告)号：US08314515B2

公开(公告)日：2012-11-20

申请号：US12496245

申请日：2009-07-01

申请人： Yen-Hui Wang ,  Wei-Chun Hsiao

发明人： Yen-Hui Wang ,  Wei-Chun Hsiao

IPC分类号： G05F1/10

CPC分类号： G05F1/46 ,  Y10T307/826 ,  Y10T307/858

摘要： A system corrected programmable integrated circuit is applied to a power supply and includes a comparator unit, a digital output unit and a programming unit. The comparator unit includes an external feedback voltage input end and a reference voltage input end for inputting a feedback voltage and a reference voltage respectively, such that when the feedback voltage equals the reference voltage, the comparator unit transmits a control signal to the digital output unit. When receiving the control signal, the digital output unit stops outputting the reference voltage and the current reference voltage is recorded as a programming voltage for outputting to the programming unit. When receiving the programming voltage, the programming unit programs the programming voltage and transmits the voltage to the reference voltage input end. Accordingly, the present invention automatically detects and compensates a system error to reduce external element, yet still achieving a qualified range of product specification.

摘要翻译： 将系统校正的可编程集成电路应用于电源，并且包括比较器单元，数字输出单元和编程单元。 比较器单元包括外部反馈电压输入端和用于分别输入反馈电压和参考电压的参考电压输入端，使得当反馈电压等于参考电压时，比较器单元向数字输出单元发送控制信号 。 当接收到控制信号时，数字输出单元停止输出参考电压，并且将当前参考电压记录为用于输出到编程单元的编程电压。 编程单元接收编程电压时，对编程电压进行编程，并将电压传输到参考电压输入端。 因此，本发明自动检测和补偿系统误差以减少外部元件，但仍然达到产品规格的合格范围。

公开(公告)号：US08068354B2

公开(公告)日：2011-11-29

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： H02M3/335

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。