公开(公告)号：US08248000B2

公开(公告)日：2012-08-21

申请号：US12787574

申请日：2010-05-26

申请人： Jing-Meng Liu

发明人： Jing-Meng Liu

IPC分类号： H05B37/02

CPC分类号： H05B33/0827 ,  H05B33/0815

摘要： The present invention discloses a light emitting device array controller which controls a power stage to supply an output voltage to one end of each of a plurality of light emitting device strings. The other end of each of the light emitting device strings is coupled to a corresponding transistor having a current inflow end, a current outflow end and a control end. The present invention obtains signals from the control ends of the transistors instead of the current inflow ends, and feedback controls the output voltage according to the highest voltage of the control ends. Thus, the number of pins required for a circuit chip is reduced.

摘要翻译： 本发明公开了一种发光器件阵列控制器，其控制功率级以将输出电压提供给多个发光器件串中的每一个的一端。 每个发光器件串的另一端耦合到具有电流流入端，电流流出端和控制端的相应晶体管。 本发明从晶体管的控制端而不是电流流入端获得信号，反馈根据控制端的最高电压来控制输出电压。 因此，减少了电路芯片所需的引脚数。

公开(公告)号：US20120187997A1

公开(公告)日：2012-07-26

申请号：US13189968

申请日：2011-07-25

申请人： Chia-Wei Liao ,  Roland Van Roy ,  Jing-Meng Liu ,  Leng-Nien Hsiu

发明人： Chia-Wei Liao ,  Roland Van Roy ,  Jing-Meng Liu ,  Leng-Nien Hsiu

IPC分类号： G06F1/04

CPC分类号： H05B33/0815 ,  G01R1/28 ,  H05B33/0854

摘要： The present invention discloses a circuit and a method for providing absolute information for floating grounded integrated circuit. The method includes: receiving an absolute information sense signal carrying absolute information; converting the absolute information sense signal to a current signal; and generating an internal reference signal according to the current signal, wherein the internal reference signal or a relationship between the internal reference signal and a floating ground level is related to the absolute information.

摘要翻译： 本发明公开了一种用于提供浮动接地集成电路的绝对信息的电路和方法。 该方法包括：接收绝对信息的绝对信息检测信号; 将绝对信息感测信号转换成电流信号; 以及根据所述当前信号产生内部参考信号，其中所述内部参考信号或所述内部参考信号与浮动地面电平之间的关系与所述绝对信息相关。

公开(公告)号：US20120112717A1

公开(公告)日：2012-05-10

申请号：US13352797

申请日：2012-01-18

申请人： Jing-Meng Liu ,  Chung-Lung Pai ,  Wei-Che Chiu

发明人： Jing-Meng Liu ,  Chung-Lung Pai ,  Wei-Che Chiu

IPC分类号： G05F1/573 ,  G05F1/10

CPC分类号： G05F1/575

摘要： The present invention discloses a power supply comprising: a switching regulator circuit converting an input voltage to an intermediate voltage; a low dropout linear regulator circuit converting the intermediate voltage to an output voltage so as to supply a load current to a load; and a feedback control circuit which increases the noise filtering effect of the low dropout linear regulator circuit when the load current increases.

摘要翻译： 本发明公开了一种电源，包括：将输入电压转换为中间电压的开关调节器电路; 将中间电压转换为输出电压以便向负载提供负载电流的低压差线性稳压器电路; 以及反馈控制电路，其在负载电流增加时增加低压降线性调节器电路的噪声滤波效果。

公开(公告)号：US20110248643A1

公开(公告)日：2011-10-13

申请号：US13072710

申请日：2011-03-27

申请人： Jing-Meng Liu ,  Shen Tu

发明人： Jing-Meng Liu ,  Shen Tu

IPC分类号： H05B37/02 ,  H02J13/00

CPC分类号： H05B37/0272

摘要： The present invention discloses a wireless remote control lighting unit and a wireless remote control lighting system and a control method thereof. The wireless remote control lighting unit comprises a power on detection circuit, which detects and counts the power on times of a power source during a predetermined period. When the power on times reach a threshold number, the wireless remote control lighting unit enters an address setting mode to set its address.

摘要翻译： 本发明公开了一种无线遥控照明单元和无线遥控照明系统及其控制方法。 无线遥控照明单元包括上电检测电路，其在预定时段期间检测并计数电源的通电时间。 当通电时间达到阈值时，无线遥控照明单元进入地址设置模式以设置其地址。

公开(公告)号：US08035606B2

公开(公告)日：2011-10-11

申请号：US11906477

申请日：2007-10-02

申请人： Chiawei Liao ,  Jing-Meng Liu

发明人： Chiawei Liao ,  Jing-Meng Liu

IPC分类号： G09G3/36 ,  G09G5/00 ,  H05B37/02 ,  H05B37/00

CPC分类号： H05B33/089 ,  G02F1/133603 ,  G02F2001/133612

摘要： The present invention discloses a backlight control circuit, comprising: a voltage supply circuit for receiving an input voltage and generating an output voltage under control by a control signal; at least one voltage comparison path respectively coupled to at least one light emission device path; a voltage operative amplifier circuit for generating the control signal according to a lowest voltage on the at least one voltage comparison path; and at least one under current detection circuit for detecting whether a corresponding one of the at least one light emission device path is in an under current status, whereby when anyone of the under current detection circuits detects the under current status, it sends an exclusion signal excluding a corresponding one of the at least one voltage comparison path from being an effective input of the voltage operative amplifier.

摘要翻译： 本发明公开了一种背光控制电路，包括：电压供给电路，用于接收输入电压，并通过控制信号控制输出电压; 至少一个电压比较路径分别耦合到至少一个发光器件路径; 电压操作放大器电路，用于根据所述至少一个电压比较路径上的最低电压产生所述控制信号; 以及至少一个欠电流检测电路，用于检测所述至少一个发光器件路径中的相应一个发光器件路径是否处于低电流状态，由此当所述欠电流检测电路中的任何一个检测到当前状态时，发送排除信号 不包括所述至少一个电压比较路径中的相应一个电压作为所述电压运算放大器的有效输入。

公开(公告)号：US20110133657A1

公开(公告)日：2011-06-09

申请号：US12942179

申请日：2010-11-09

申请人： PEI-CHENG HUANG ,  Jing-Meng Liu ,  Roland Van Roy

发明人： PEI-CHENG HUANG ,  Jing-Meng Liu ,  Roland Van Roy

IPC分类号： H05B37/00 ,  H05B41/36

CPC分类号： H05B33/0818

摘要： The present invention discloses a light emitting device driver circuit and a method for driving a light emitting device. In the present invention, the secondary windings of a transformer provide positive and negative secondary voltages, so as to generate positive and negative output voltages. A light emitting device circuit is coupled between the positive and negative output voltages. As such, the specification to withstand high voltage for a device in the circuit is reduced.

摘要翻译： 本发明公开了一种发光器件驱动电路和驱动发光器件的方法。 在本发明中，变压器的次级绕组提供正和负二次电压，从而产生正和负的输出电压。 发光器件电路耦合在正和负输出电压之间。 因此，降低了用于承受电路中器件的高电压的规范。

公开(公告)号：US20110057637A1

公开(公告)日：2011-03-10

申请号：US12848480

申请日：2010-08-02

申请人： Jing-Meng Liu

发明人： Jing-Meng Liu

IPC分类号： G05F1/618

CPC分类号： H02M3/156

摘要： The present invention discloses a boundary conduction mode (BCM) switching regulator, and a driver circuit and a control method of the switching regulator, for controlling a power stage to convert an input voltage to an output voltage or output current. The BCM switching regulator detects whether it is operating in continuous conduction mode (CCM) or discontinuous conduction mode (DCM), and adjusts the On-time, Off-time, or frequency of the power stage accordingly, so that the switching regulator operates in or near BCM.

摘要翻译： 本发明公开了一种边界导通模式（BCM）开关调节器，以及用于控制功率级以将输入电压转换为输出电压或输出电流的开关调节器的驱动电路和控制方法。 BCM开关稳压器检测其是工作在连续导通模式（CCM）还是不连续导通模式（DCM），并相应调整功率级的导通时间，关断时间或频率，以使开关稳压器工作在 或BCM附近。

公开(公告)号：US07795855B2

公开(公告)日：2010-09-14

申请号：US11826449

申请日：2007-07-16

申请人： Hung-Der Su ,  Jing-Meng Liu

发明人： Hung-Der Su ,  Jing-Meng Liu

IPC分类号： G05F1/40

CPC分类号： H02M1/08 ,  H02M3/156 ,  Y10T307/858

摘要： Two step driving technique is used to turn on the power switch of a power management apparatus in such a manner that the power switch is weakly turned on first and then goes into a low ON-resistance region. The power switch is so avoided to operate at highest gate and drain voltages simultaneously even a non-uniform turn on happens, and is thereby away from avalanche breakdown. The safe operation region of the power management apparatus is therefore extended with minimum efficiency degradation.

摘要翻译： 使用两步驱动技术，以使得电源开关首先弱开然后进入低导通电阻区域的方式来接通电源管理装置的电源开关。 电源开关如此避免同时在最高的栅极和漏极电压下工作，即使发生不均匀的导通，也因此远离雪崩击穿。 因此，功率管理装置的安全操作区域以最小的效率降低而延长。

公开(公告)号：US20100225249A1

公开(公告)日：2010-09-09

申请号：US12711515

申请日：2010-02-24

申请人： Chia-Wei Liao ,  Jing-Meng Liu ,  Roland Van Roy

发明人： Chia-Wei Liao ,  Jing-Meng Liu ,  Roland Van Roy

IPC分类号： H05B41/36

CPC分类号： H02M3/33507 ,  H05B33/0815 ,  Y02B20/347

摘要： The present invention discloses an LED driver with direct AC-DC conversion and control function, and a method and integrated circuit therefor. The LED driver comprises: a primary side circuit receiving rectified AC power, the primary side circuit including at least one power switch; a transformer coupled to the primary side circuit and controlled by the at least one power switch to convert a primary voltage to a secondary voltage which is supplied to an LED circuit; and a secondary side circuit coupled to the transformer, the secondary side circuit directly controlling current flowing through the LED circuit and sending a feedback signal to the primary side circuit to control the at least one power switch thereby.

摘要翻译： 本发明公开了具有直接AC-DC转换和控制功能的LED驱动器及其方法和集成电路。 所述LED驱动器包括：初级侧电路，接收整流的AC电力，所述初级侧电路包括至少一个电源开关; 耦合到所述初级侧电路并由所述至少一个电源开关控制的变压器，以将初级电压转换为提供给LED电路的次级电压; 以及耦合到所述变压器的次级侧电路，所述次级侧电路直接控制流过所述LED电路的电流并向所述初级侧电路发送反馈信号以控制所述至少一个电源开关。

公开(公告)号：US07751471B2

公开(公告)日：2010-07-06

申请号：US12349130

申请日：2009-01-06

申请人： Kwan-Jen Chu ,  Chung-Lung Pai ,  Po-Shun Chung ,  Jing-Meng Liu

发明人： Kwan-Jen Chu ,  Chung-Lung Pai ,  Po-Shun Chung ,  Jing-Meng Liu

IPC分类号： H03K7/08

CPC分类号： H02M3/156

摘要： A pulse width modulation (PWM) Regulator System with automatically switching pulse skipping mode (PSM) is disclosed. The PWM regulator system comprises a PWM regulator, a PSM switching module and a pulse generator. The PWM regulator converts the input voltage by PWM. The PSM switching module determines to enter or exit the PSM. The pulse generator adaptively produces pulse signal for the switching regulator to operate in PSM.

摘要翻译： 公开了具有自动切换脉冲跳跃模式（PSM）的脉冲宽度调制（PWM）调节器系统。 PWM调节器系统包括PWM调节器，PSM开关模块和脉冲发生器。 PWM调节器通过PWM转换输入电压。 PSM切换模块确定进入或退出PSM。 脉冲发生器自适应地产生用于开关调节器的脉冲信号以在PSM中操作。