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1. 发明申请

US20110050308A1 STANDBY POWER REDUCTION METHOD AND APPARATUS FOR SWITCHING POWER APPLICATIONS 审中-公开
标题翻译：用于切换电源应用的待机功率减少方法和装置
公开(公告)号：US20110050308A1
公开(公告)日：2011-03-03
申请号：US12553398
申请日：2009-09-03
申请人： Jun-Shiung Huang , Chern-Lin Chen , Chang-Ling Sha , Ko-Yen Lee
发明人： Jun-Shiung Huang , Chern-Lin Chen , Chang-Ling Sha , Ko-Yen Lee
IPC分类号： H03K3/02
CPC分类号： H02M3/33507 , H02M2001/0032 , Y02B70/16
摘要： The present invention discloses a standby power reduction method and apparatus for switching power applications, the method comprising the steps of: performing a hysteresis comparison on a supply voltage to generate a selecting signal having a first state and a second state, wherein the hysteresis comparison has a high threshold voltage compared to the supply voltage when the selecting signal is at the first state, and the hysteresis comparison has a low threshold voltage compared to the supply voltage when the selecting signal is at the second state; and determining a UVLO_ON voltage according to the selecting signal, wherein the UVLO_ON voltage is equal to a first level when the selecting signal is at the first state, and the UVLO_ON voltage is equal to a second level when the selecting signal is at the second state.
摘要翻译：本发明公开了一种用于切换电源应用的待机功率降低方法和装置，所述方法包括以下步骤：对电源电压执行滞后比较，以产生具有第一状态和第二状态的选择信号，其中滞后比较当选择信号处于第一状态时与电源电压相比高的阈值电压，并且与选择信号处于第二状态时的电源电压相比，滞后比较具有低阈值电压; 以及根据选择信号确定UVLO_ON电压，其中当选择信号处于第一状态时，UVLO_ON电压等于第一电平，并且当选择信号处于第二状态时，UVLO_ON电压等于第二电平。

2. 发明授权

US08305047B2 Safety capacitor discharging method and apparatus for AC-to-DC converters 有权
标题翻译：用于AC-DC转换器的安全电容器放电方法和装置
公开(公告)号：US08305047B2
公开(公告)日：2012-11-06
申请号：US12566268
申请日：2009-09-24
申请人： Chun-Liang Lin , Chi-Hao Wu , Ko-Ming Lin , Huang-Chi Lin , Chang-Ling Sha , Jun-Shiung Huang
发明人： Chun-Liang Lin , Chi-Hao Wu , Ko-Ming Lin , Huang-Chi Lin , Chang-Ling Sha , Jun-Shiung Huang
IPC分类号： H02J7/00
CPC分类号： H02M1/126 , H02M2001/322
摘要： The present invention discloses a safety capacitor discharging method for AC-to-DC converters, wherein the AC-to-DC converters have a safety capacitor connected between two line voltages, the method comprising the steps of: detecting at least one line voltage to generate a line-off signal, wherein the line-off signal is at a first state when the peak voltage of the at least one line voltage is above a reference voltage, and the line-off signal is at a second state when the peak voltage of the at least one line voltage is below the reference voltage; and performing discharge of the safety capacitor by generating a conduction path between two plates of the safety capacitor when the line-off signal is at the second state. The present invention also provides a safety capacitor discharging apparatus for AC-to-DC converters.
摘要翻译：本发明公开了一种用于AC-DC转换器的安全电容器放电方法，其中AC-DC转换器具有连接在两个线路电压之间的安全电容器，该方法包括以下步骤：检测至少一个线路电压以产生线路断开信号，其中当所述至少一个线路电压的峰值电压高于参考电压时，所述线路关断信号处于第一状态，并且所述线路关断信号处于第二状态，当所述线路关断信号的峰值电压所述至少一个线路电压低于所述参考电压; 并且当所述线路关断信号处于第二状态时，通过在所述安全电容器的两个板之间产生导电路径来执行所述安全电容器的放电。本发明还提供一种用于AC-DC转换器的安全电容器放电装置。

3. 发明申请

US20110033174A1 CONTROL CIRCUIT FOR A VARIABLE FREQUENCY DC MOTOR 审中-公开
标题翻译：可变频率直流电机的控制电路
公开(公告)号：US20110033174A1
公开(公告)日：2011-02-10
申请号：US12536701
申请日：2009-08-06
申请人： Ko-Yen Lee , Chang-Ling Sha
发明人： Ko-Yen Lee , Chang-Ling Sha
IPC分类号： G05F1/10
CPC分类号： H02P7/29
摘要： The present invention discloses a control circuit for a variable frequency DC motor, the control circuit comprising: a controller, having a voltage sensing input end and a control output end, wherein the control output end is used to deliver an output signal according to the difference between a threshold voltage and the voltage at the voltage sensing input end; a transistor, having a first terminal, a second terminal and a third terminal, wherein the first terminal is coupled to the voltage sensing input end, and the second terminal is coupled to the variable frequency DC motor, and the third terminal is coupled to a reference ground; and a voltage divider, coupled between the second terminal and the third terminal, used to generate a feedback voltage for the voltage sensing input end; wherein the voltage at the second terminal is regulated according to the threshold voltage.
摘要翻译：本发明公开了一种用于变频直流电动机的控制电路，所述控制电路包括：具有电压感测输入端和控制输出端的控制器，其中所述控制输出端用于根据所述差异传送输出信号在阈值电压和电压感测输入端之间的电压之间; 具有第一端子，第二端子和第三端子的晶体管，其中所述第一端子耦合到所述电压感测输入端，并且所述第二端子耦合到所述可变频率DC电动机，并且所述第三端子耦合到参考地以及耦合在所述第二端子和所述第三端子之间的用于产生所述电压感测输入端的反馈电压的分压器; 其中根据所述阈值电压调节所述第二端子处的电压。

4. 发明申请

US20110001445A1 LOW-PIN COUNT FAN SPEED CONTROL SYSTEM AND A METHOD THEREOF 有权
标题翻译：低密码计数风扇速度控制系统及其方法
公开(公告)号：US20110001445A1
公开(公告)日：2011-01-06
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： G05D23/20 , H02P7/29
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。

5. 发明授权

US08264184B2 Low-pin count fan speed control system and a method thereof 有权
标题翻译：低引脚数风扇转速控制系统及其方法
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。

6. 发明申请

US20110169425A1 SINGLE CHIP BALLAST CONTROLLER FOR STEP-DIMMING OF A FLUORESCENT LAMP 审中-公开
标题翻译：单芯片控制器，用于荧光灯的步进调光
公开(公告)号：US20110169425A1
公开(公告)日：2011-07-14
申请号：US12687560
申请日：2010-01-14
申请人： Chang-Ling Sha , Ko-Ming Lin , Yen-Ping Wang , Pei-Yuan Chen , Jian-Shen Li
发明人： Chang-Ling Sha , Ko-Ming Lin , Yen-Ping Wang , Pei-Yuan Chen , Jian-Shen Li
IPC分类号： H05B37/02
CPC分类号： H05B41/3925 , H05B41/2828 , Y02B20/186
摘要： The present invention relates a single chip ballast controller for step-dimming of a fluorescent lamp, comprising: a counting circuit, used to generate a switching count by counting the instances where the supply voltage falls below a threshold voltage; a reference voltage generator, used to generate a reference voltage proportional to the switching count; and a gating signal generator, used to generate a high side driving signal and a low side driving signal according to an error voltage between the reference voltage and a current sensing voltage to regulate the current sensing voltage at the reference voltage, wherein the current sensing voltage is proportional to a lamp current flowing through the fluorescent lamp.
摘要翻译：本发明涉及一种用于荧光灯步进调光的单芯片镇流器控制器，包括：计数电路，用于通过对电源电压低于阈值电压的情况进行计数来产生开关计数; 参考电压发生器，用于产生与开关计数成比例的参考电压; 以及门控信号发生器，用于根据参考电压和电流感测电压之间的误差电压产生高侧驱动信号和低侧驱动信号，以调节参考电压下的电流感测电压，其中电流感测电压与流过荧光灯的灯电流成比例。

7. 发明申请

US20110199024A1 SINGLE CHIP BALLAST CONTROLLER CAPABLE OF PROVIDING BRIGHTNESS LEVELS OVERVIEW AND BRIGHTNESS SETTING OF A FLUORESCENT LAMP 审中-公开
标题翻译：提供亮度水平的单芯片压控控制器荧光灯的概述和亮度设置
公开(公告)号：US20110199024A1
公开(公告)日：2011-08-18
申请号：US12707001
申请日：2010-02-17
申请人： Ko-Ming Lin , Chang-Ling Sha , Yen-Ping Wang , Pei-Yuan Chen , Yun-Chien Liao
发明人： Ko-Ming Lin , Chang-Ling Sha , Yen-Ping Wang , Pei-Yuan Chen , Yun-Chien Liao
IPC分类号： H05B37/02
CPC分类号： H05B41/2825 , H05B41/3925
摘要： The present invention discloses a single chip ballast controller, capable of providing brightness levels overview and brightness setting of a fluorescent lamp during power-on period, having: a switching detection circuit, used to generate a set signal, which changes from an inactive state to an active state when a supply voltage falls below a threshold voltage; a time-varying reference voltage generator, used to generate a time-varying reference voltage varying between a first level and a second level during a power-on period, wherein the time-varying reference voltage can be fixed at a level by the active state of the set signal during the power-on period; and a gating signal generator, used to generate a high side driving signal and a low side driving signal according to an error voltage between the time-varying reference voltage and a current sensing voltage.
摘要翻译：本发明公开了一种单芯片镇流器控制器，其能够在上电期间提供荧光灯的亮度等级概览和亮度设置，具有：切换检测电路，用于生成从非活动状态变为设定信号的设定信号当电源电压低于阈值电压时的激活状态; 时变参考电压发生器，用于在上电周期期间产生在第一电平和第二电平之间变化的时变参考电压，其中时变参考电压可以通过激活状态固定在一个电平上在上电期间的设定信号; 以及门控信号发生器，用于根据时变参考电压和电流感测电压之间的误差电压产生高侧驱动信号和低侧驱动信号。

8. 发明申请

US20100321957A1 STANDBY POWER METHOD AND APPARATUS FOR POWER MODULE APPLICATIONS 审中-公开
标题翻译：用于功率模块应用的待机功率方法和装置
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。

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