公开(公告)号：US08072159B2

公开(公告)日：2011-12-06

申请号：US12416163

申请日：2009-04-01

申请人： Chien-Hung Chen ,  Chin-Po Cheng ,  Yong-Long Lee

发明人： Chien-Hung Chen ,  Chin-Po Cheng ,  Yong-Long Lee

IPC分类号： H05B41/36

CPC分类号： H05B41/282 ,  H05B41/2827

摘要： A multi-lamp driving circuit for driving a plurality of lamps includes at least one power stage circuit, at least one transformer circuit, a balancing circuit, and a control circuit. The power stage circuit converts external electrical signals to alternating current (AC) signals. The transformer circuit is connected to the power stage circuit, to convert the AC signals to high voltage electrical signals capable of driving the lamps. The balancing circuit balances current flowing through the lamps, and includes a capacitor balancing circuit and a transformer balancing circuit. The control circuit is connected between the balancing circuit and the power stage circuit, to control output of the power stage circuit according to variation of the current flowing through the lamps.

摘要翻译： 用于驱动多个灯的多灯驱动电路包括至少一个功率级电路，至少一个变压器电路，平衡电路和控制电路。 功率级电路将外部电信号转换为交流（AC）信号。 变压器电路连接到功率级电路，将交流信号转换成能够驱动灯的高电压电信号。 平衡电路平衡流过灯的电流，并且包括电容器平衡电路和变压器平衡电路。 控制电路连接在平衡电路和功率级电路之间，根据流过灯的电流的变化来控制功率级电路的输出。

公开(公告)号：US08310164B2

公开(公告)日：2012-11-13

申请号：US12772925

申请日：2010-05-03

申请人： Chin-Po Cheng ,  Yong-Long Lee

发明人： Chin-Po Cheng ,  Yong-Long Lee

IPC分类号： H05B39/00

CPC分类号： H05B41/2822 ,  H01F38/10

摘要： A multi-lamp driving system includes a power supply and at least one balance transformer. Each balance transformer includes two cores, two primary windings, two secondary windings and two protection windings. Each primary winding is wrapped around a core and serially connected to a lamp to form a first circuit branch in parallel connection with each other. The first circuit branches are powered by the power supply. The Each secondary winding is wrapped around a core and connected to a primary winding. The two secondary windings are connected in series to form a short circuit loop. Each of the protection windings is wrapped around a core and connected to a primary winding. The protection windings are wrapped in opposite directions and connected in series to form a second circuit branch. The second circuit branch outputs voltage signals to the power supply when induced voltages crossing the protection windings are unequal.

摘要翻译： 多灯驱动系统包括电源和至少一个平衡变压器。 每个平衡变压器包括两个磁芯，两个初级绕组，两个次级绕组和两个保护绕组。 每个初级绕组缠绕在芯上并串联连接到灯以形成彼此并联连接的第一电路支路。 第一个电路分支由电源供电。 每个次级绕组缠绕在芯上并连接到初级绕组。 两个次级绕组串联连接形成一个短路回路。 每个保护绕组缠绕在芯上并连接到初级绕组。 保护绕组缠绕在相反的方向并串联连接以形成第二电路支路。 当穿过保护绕组的感应电压不相等时，第二电路支路向电源输出电压信号。

公开(公告)号：US08093824B2

公开(公告)日：2012-01-10

申请号：US12483233

申请日：2009-06-11

申请人： Yong-Long Lee ,  Chin-Po Cheng

发明人： Yong-Long Lee ,  Chin-Po Cheng

IPC分类号： H05B37/00

CPC分类号： H05B41/2827 ,  G09G3/3406 ,  G09G2330/021 ,  G09G2330/04 ,  G09G2330/12 ,  H05B41/2855

摘要： A backlight driving system comprises an inverter module, a current balance module, a feedback module and an open-lamp protection detection module. The inverter module provides electrical signals to a plurality of lamps. The current balance module balances currents flowing through the plurality of lamps. The feedback module detects the current of the backlight and generates a feedback signal to the invert module accordingly. The open-lamp protection detection module detects voltage variations of the feedback transformer and generates a detection signal to the inverter module accordingly. The inverter module regulates the currents flowing through the plurality of lamps according to the feedback signal and determines one or more of the plurality of lamps are faulty according to the detection signal generated by the open-lamp protection detection module, and stops providing the electrical signals to the plurality of lamps.

摘要翻译： 背光驱动系统包括逆变器模块，电流平衡模块，反馈模块和开路灯保护检测模块。 逆变器模块向多个灯提供电信号。 当前的平衡模块平衡流过多个灯的电流。 反馈模块检测背光的电流，并相应地向反相模块生成反馈信号。 开路灯保护检测模块检测反馈变压器的电压变化，并相应地向逆变器模块产生检测信号。 逆变器模块根据反馈信号调节流过多个灯的电流，并且根据由开路灯保护检测模块产生的检测信号确定多个灯中的一个或多个是故障的，并且停止提供电信号 到多个灯。

公开(公告)号：US08344653B2

公开(公告)日：2013-01-01

申请号：US12826600

申请日：2010-06-29

申请人： Yong-Long Lee ,  Chin-Po Cheng

发明人： Yong-Long Lee ,  Chin-Po Cheng

IPC分类号： H05B37/02

CPC分类号： H05B33/0815 ,  H05B33/0827 ,  Y02B20/347

摘要： A light emitting diode (LED) backlight driving system drives at least one LED array, and includes a boost power stage circuit, a controller, a multi-channel constant current driving circuit, a voltage dividing circuit, and an offset voltage generating circuit. The boost power stage circuit boosts direct current (DC) power signals to output driving voltage to drive the LED array. The multi-channel constant current driving circuit controls current flowing through the LED array, and outputs regulating voltage to the controller to regulate the driving voltage. The voltage dividing circuit divides the driving voltage to generate feedback voltage to send to the controller. The offset voltage generating circuit generates offset voltage to modify the feedback voltage according to at least one mode selection signal. The controller controls the driving voltage according to the modified feedback voltage and the regulating voltage.

摘要翻译： 发光二极管（LED）背光驱动系统驱动至少一个LED阵列，并且包括升压功率级电路，控制器，多通道恒流驱动电路，分压电路和偏移电压产生电路。 升压功率级电路提升直流（DC）电源信号，输出驱动电压驱动LED阵列。 多通道恒流驱动电路控制流经LED阵列的电流，并向控制器输出调节电压以调节驱动电压。 分压电路对驱动电压进行分压，生成反馈电压，发送给控制器。 偏移电压产生电路根据至少一个模式选择信号产生偏移电压以修改反馈电压。 控制器根据修正的反馈电压和调节电压来控制驱动电压。

公开(公告)号：US08436540B2

公开(公告)日：2013-05-07

申请号：US13110006

申请日：2011-05-18

申请人： Chin-Po Cheng ,  Yong-Long Lee

发明人： Chin-Po Cheng ,  Yong-Long Lee

IPC分类号： H05B37/02

CPC分类号： G09G3/342 ,  G09G3/2096 ,  G09G2310/024 ,  G09G2320/064 ,  G09G2320/0653

摘要： A multi-lamp driving system includes a pulse width modulation (PWM) controller, transformers, a current difference detection circuit, a lighting detection circuit, a frequency scanning detection circuit, a frequency regulating circuit, and a duty cycle regulating circuit. The current difference detection circuit detects difference among current flowing through lamps to determine if the current fluctuates. The lighting detection circuit determines if the lamps are lit according to the current, and generates a lighting indication signal after the lamps are lit. The frequency scanning detection circuit determines if the multi-lamp driving system is in a frequency scanning process according to the lighting indication signal, and generates a frequency scanning indication signal if the multi-lamp driving system is in the frequency scanning process. The duty cycle regulating circuit regulates duty cycles of the PWM signals upon the condition that the current fluctuates and the multi-lamp driving system is in the frequency scanning process.

摘要翻译： 多灯驱动系统包括脉宽调制（PWM）控制器，变压器，电流差检测电路，点亮检测电路，频率扫描检测电路，频率调节电路和占空比调节电路。 电流差检测电路检测流过灯的电流之间的差异，以确定电流是否波动。 照明检测电路根据电流确定灯是否点亮，并且在灯被点亮之后产生点亮指示信号。 频率扫描检测电路根据点亮指示信号来判断多灯驱动系统是否处于频率扫描处理，如果多灯驱动系统处于频率扫描处理中，则产生频率扫描指示信号。 占空比调节电路在电流波动，多灯驱动系统处于频率扫描过程中调节PWM信号的占空比。

公开(公告)号：US07986110B2

公开(公告)日：2011-07-26

申请号：US12411411

申请日：2009-03-26

申请人： Ying-Tsun Wu ,  Chin-Po Cheng ,  Yong-Long Lee

发明人： Ying-Tsun Wu ,  Chin-Po Cheng ,  Yong-Long Lee

IPC分类号： H05B37/02

CPC分类号： H05B37/03

摘要： A light source driving device for driving a light source includes a power stage circuit, a transformer circuit, a control circuit, and a fault detecting circuit. The power stage circuit converts an external electrical signal to an alternating current (AC) signal. The transformer circuit is connected between the power stage circuit and the light source to convert the AC signal to a high voltage electrical signal adapted for driving the light source. The fault detecting circuit detects whether the light source is nonfunctional, and outputs a fault signal upon the condition that the light source is nonfunctional. The fault detecting circuit includes a voltage level comparison circuit and a variable-benchmark voltage circuit. The control circuit is connected between the fault detecting circuit and the power stage circuit to output a control signal to the power stage circuit based on the fault signal.

摘要翻译： 用于驱动光源的光源驱动装置包括功率级电路，变压器电路，控制电路和故障检测电路。 功率级电路将外部电信号转换为交流（AC）信号。 变压器电路连接在功率级电路和光源之间，以将AC信号转换成适用于驱动光源的高电压电信号。 故障检测电路检测光源是否不起作用，并且在光源不起作用的情况下输出故障信号。 故障检测电路包括电压电平比较电路和可变基准电压电路。 控制电路连接在故障检测电路和功率级电路之间，根据故障信号向功率级电路输出控制信号。

公开(公告)号：US07266076B2

公开(公告)日：2007-09-04

申请号：US10743429

申请日：2003-12-23

申请人： Feng-Hsiang Lo ,  Yong-Long Lee ,  Kuo-Ding Shin ,  Chin-Shou Huang ,  Shin-Huei Wu ,  Chih-Chung Wu ,  Shin-Bo Wang

发明人： Feng-Hsiang Lo ,  Yong-Long Lee ,  Kuo-Ding Shin ,  Chin-Shou Huang ,  Shin-Huei Wu ,  Chih-Chung Wu ,  Shin-Bo Wang

IPC分类号： G11B7/00

CPC分类号： G11B7/0053 ,  G11B7/0941

摘要： An automatic detecting device of land pre-pits signal is disclosed. The device adjusts gain of push-pull signals to raise the signal to noise ratio of the land pre-pits signal to the wobble signal. Digital logic computation is also utilized to recognize the practical position of the land pre-pits. The level automatic detection of the RC circuit and the fixed slice level compose an automatic slice level, which is the basis for detecting the land pre-pits. The disclosed device eliminates the drawback of not easy to obtain correct land pre-pits signal from written disks by the conventional of fixed land pre-pits slice level technology.

摘要翻译： 公开了一种陆地预制坑信号的自动检测装置。 该装置调整推挽信号的增益，以将陆地预制凹坑信号的信噪比提高到摆动信号。 数字逻辑计算也用于识别土地预制坑的实际位置。 RC电路的电平自动检测和固定切片电平构成自动切片电平，是检测土地预制坑的基础。 所公开的装置消除了通过常规的固定地面预制切片级技术不容易从写入盘获得正确的地面预制凹坑信号的缺点。

公开(公告)号：US20050002304A1

公开(公告)日：2005-01-06

申请号：US10743429

申请日：2003-12-23

申请人： Feng-Hsiang Lo ,  Yong-Long Lee ,  Kuo-Ding Shin ,  Chin-Shou Huang ,  Shin-Huei Wu ,  Chih-Chung Wu ,  Shin-Bo Wang

发明人： Feng-Hsiang Lo ,  Yong-Long Lee ,  Kuo-Ding Shin ,  Chin-Shou Huang ,  Shin-Huei Wu ,  Chih-Chung Wu ,  Shin-Bo Wang

IPC分类号： G11B7/00 ,  G11B7/005 ,  G11B7/09

CPC分类号： G11B7/0053 ,  G11B7/0941

摘要： An automatic detecting device of land pre-pits signal is disclosed. The device adjusts gain of push-pull signals to raise the signal to noise ratio of the land pre-pits signal to the wobble signal. Digital logic computation is also utilized to recognize the practical position of the land pre-pits. The level automatic detection of the RC circuit and the fixed slice level compose an automatic slice level, which is the basis for detecting the land pre-pits. The disclosed device eliminates the drawback of not easy to obtain correct land pre-pits signal from written disks by the conventional of fixed land pre-pits slice level technology.

摘要翻译： 公开了一种陆地预制坑信号的自动检测装置。 该装置调整推挽信号的增益，以将陆地预制凹坑信号的信噪比提高到摆动信号。 数字逻辑计算也用于识别土地预制坑的实际位置。 RC电路的电平自动检测和固定切片电平构成自动切片电平，是检测土地预制坑的基础。 所公开的装置消除了通过常规的固定地面预制切片级技术不容易从写入盘获得正确的地面预制凹坑信号的缺点。

公开(公告)号：US06621778B1

公开(公告)日：2003-09-16

申请号：US09721797

申请日：2000-11-24

申请人： Shu-Tai Lu ,  Kuang-Yang Chuang ,  Jyh-Shong Ju ,  Feng-Hsiang Lo ,  Kuo-Ding Shin ,  Yong-Long Lee ,  Ching-Ping Kuei

发明人： Shu-Tai Lu ,  Kuang-Yang Chuang ,  Jyh-Shong Ju ,  Feng-Hsiang Lo ,  Kuo-Ding Shin ,  Yong-Long Lee ,  Ching-Ping Kuei

IPC分类号： G11B712

CPC分类号： G11B7/1263

摘要： This specification discloses an automatic calibration method for the output power of a pickup head for an optical information recording apparatus, which avoids laser diode thermal effects using duty cycle control and obtains the correct conversion function between the output current of a front monitor diode and the output power of the pickup head by curve fitting. This method only needs to measure one set of front monitor diode output current and output power conversion function of the pickup head. The same conversion function is applicable to all pickup heads of the same type. The optical information recording apparatus automatically detects the corresponding parameter for the pickup head. Each optical information recording apparatus can also automatically detect the specific power control parameters for each set of power control channel to obtain the optimal recording characteristics.

摘要翻译： 本说明书公开了一种用于光信息记录装置的拾取头的输出功率的自动校准方法，其避免了使用占空比控制的激光二极管热效应，并获得前监视二极管的输出电流与输出之间的正确转换功能 通过曲线拟合获得头部的力量。 该方法只需要测量一组前置监视二极管输出电流和输出电源转换功能的拾音头。 相同的转换功能适用于相同类型的所有拾音头。 光信息记录装置自动检测拾取头的相应参数。 每个光学信息记录装置还可以自动检测每组功率控制信道的特定功率控制参数以获得最佳记录特性。

公开(公告)号：US20080191639A1

公开(公告)日：2008-08-14

申请号：US11599185

申请日：2006-11-14

申请人： Shih-Ming Chen ,  Yong-Long Lee

发明人： Shih-Ming Chen ,  Yong-Long Lee

IPC分类号： H05B41/16 ,  H04N3/14

CPC分类号： H05B41/2822

摘要： A backlight module that includes a lamp and a single side driving inverter that is coupled to one end of the lamp. The single side driving inverter is configured to control an operating current of the lamp to be within 80% to 100% of a saturation luminance current. The lamp has a characteristic such that when the operating current is lower than the saturation luminance current, the lamp luminance increases as the operating current increases, and when the operating current is substantially equal to or higher than the saturation luminance current, the lamp luminance does not increase as the operating current increases.

摘要翻译： 一种背光模块，其包括灯和耦合到所述灯的一端的单侧驱动逆变器。 单侧驱动逆变器被配置为将灯的工作电流控制在饱和亮度电流的80％至100％之内。 该灯具有这样的特征：当工作电流低于饱和亮度电流时，灯的亮度随着工作电流的增加而增加，当工作电流基本上等于或高于饱和亮度电流时，灯的亮度 不随着工作电流的增加而增加。