公开(公告)号：US08853994B2

公开(公告)日：2014-10-07

申请号：US13373789

申请日：2011-12-01

Applicant: Jing-Meng Liu

Inventor： Jing-Meng Liu

IPC: H01M10/46 ,  G05F1/67 ,  H02J7/35

CPC classification number: G05F1/67 ,  H02J7/35 ,  Y02E10/566 ,  Y02E10/58 ,  Y10T307/50

Abstract: The present invention discloses an analog photovoltaic power circuit, including: a photovoltaic device group for receiving photo energy to generate an input voltage, the input voltage corresponding to an input current; a power stage circuit for receiving the input voltage and generating an output voltage; an optimum current or voltage estimation circuit for receiving a predetermined voltage and estimating an optimum current or voltage point corresponding to an optimal output point according to a direction of variation of the input current and a direction of variation of the power generated by the photovoltaic device group; and an analog comparison and control circuit for comparing the optimum current or voltage with the input current or voltage, to thereby control the operation of the power stage circuit.

Abstract translation: 本发明公开了一种模拟光伏电力电路，包括：用于接收光能以产生输入电压的光电器件组，输入电压对应于输入电流; 功率级电路，用于接收输入电压并产生输出电压; 用于接收预定电压并且根据输入电流的变化方向和由光伏器件组产生的电力的变化方向来估计与最佳输出点相对应的最佳电流或电压点的最佳电流或电压估计电路 ; 以及用于将最佳电流或电压与输入电流或电压进行比较的模拟比较和控制电路，从而控制功率级电路的操作。

公开(公告)号：US08803492B2

公开(公告)日：2014-08-12

申请号：US12379256

申请日：2009-02-18

Applicant: Jing-Meng Liu

Inventor： Jing-Meng Liu

IPC: G05F1/00

CPC classification number: H02M3/1588 ,  H02M2001/0022 ,  H02M2001/007 ,  Y02B70/1466 ,  Y10T307/406

Abstract: A power converter includes a first conversion stage for converting an input voltage to a first output voltage and a second conversion stage for converting the first output voltage to a second output voltage. An error signal is generated according to a reference voltage and a feedback signal extracted from the second conversion stage, and a feed forward signal is generated from the error signal and injected into the first conversion stage to stabilize the first output voltage. The feedback signal is a function of the second output voltage and thus, the error signal varies with the second output voltage. As a result, the first output voltage will be stabilized when the second output voltage varies, due to the varied feed forward signal.

Abstract translation: 功率转换器包括用于将输入电压转换为第一输出电压的第一转换级和用于将第一输出电压转换为第二输出电压的第二转换级。 根据从第二转换级提取的参考电压和反馈信号产生误差信号，并且从误差信号产生前馈信号并将其注入到第一转换级中以稳定第一输出电压。 反馈信号是第二输出电压的函数，因此误差信号随着第二输出电压而变化。 结果，由于前馈信号的变化，当第二输出电压变化时，第一输出电压将被稳定。

公开(公告)号：US08513894B2

公开(公告)日：2013-08-20

申请号：US12584149

申请日：2009-09-01

Applicant: Pei-Cheng Huang ,  Ching-Jung Tseng ,  Jing-Meng Liu

Inventor： Pei-Cheng Huang ,  Ching-Jung Tseng ,  Jing-Meng Liu

IPC: H05B37/02

CPC classification number: H05B37/02 ,  F21K9/232 ,  H05B33/0848 ,  Y02B20/348

Abstract: The present invention discloses a light emitting device control method for adjusting the brightness of the light emitting device by an AC signal, comprising: receiving a signal having a turn ON angle and converting the signal to a DC signal; obtaining an average of the DC signal level, the average being a function of the turn ON angle; determining a reference voltage of a current source circuit according to the average of the DC signal level; and controlling a current flow through the light emitting device by the current source circuit.

Abstract translation: 本发明公开了一种用于通过AC信号调节发光装置的亮度的发光装置控制方法，包括：接收具有转角的信号并将该信号转换成DC信号; 获得DC信号电平的平均值，平均值是转向ON角度的函数; 根据DC信号电平的平均值确定电流源电路的参考电压; 以及通过电流源电路控制通过发光器件的电流。

公开(公告)号：US08508463B2

公开(公告)日：2013-08-13

申请号：US11906512

申请日：2007-10-02

Applicant: Jing-Meng Liu

Inventor： Jing-Meng Liu

IPC: G09G3/36

CPC classification number: H05B33/0827 ,  H05B33/0815

Abstract: The present invention discloses a backlight control circuit, comprising: a voltage supply circuit, under control by a control signal, for receiving an input voltage and generating an output voltage; a plurality of nodes for respectively indicating the current status of corresponding light emission device paths; and a high-low voltage comparison and amplifier circuit for generating the control signal according to a voltage difference between at least two nodes.

Abstract translation: 本发明公开了一种背光控制电路，包括：电压供给电路，由控制信号控制，用于接收输入电压并产生输出电压; 分别表示对应的发光装置路径的当前状态的多个节点; 以及用于根据至少两个节点之间的电压差产生控制信号的高低电压比较和放大电路。

公开(公告)号：US20130169177A1

公开(公告)日：2013-07-04

申请号：US13728541

申请日：2012-12-27

Applicant: Chia-Wei Liao ,  Leng-Nien Hsin ,  Pei-Yuan Chen ,  Roland Van Roy ,  Jing-Meng Liu

Inventor： Chia-Wei Liao ,  Leng-Nien Hsin ,  Pei-Yuan Chen ,  Roland Van Roy ,  Jing-Meng Liu

IPC: G05F1/455 ,  G05F3/02 ,  H05B37/02

CPC classification number: G05F1/455 ,  G05F1/10 ,  G05F3/02 ,  H05B33/0815 ,  H05B37/02 ,  Y02B20/346

Abstract: The present invention discloses an active bleeder circuit capable of triggering a tri-electrode AC switch (TRIAC) circuit in all phase. The active bleeder circuit receives a rectified signal having an OFF phase and an ON phase. The active bleeder includes: a detection circuit for generating a detection signal according to the rectified signal and accumulating the detection signal in the OFF phase of the rectified signal; and a current sinker circuit coupled to the detection circuit, for generates a latching current to trigger the TRIAC circuit by operating a switch when the detection signal exceeds a predetermined level. The present invention also discloses a light emitting device power supply circuit and a TRIAC control method using the active bleeder circuit.

Abstract translation: 本发明公开了一种能够全相触发三电极交流开关（TRIAC）电路的有源放电电路。 有源泄放电路接收具有OFF相位和ON相位的整流信号。 有源放电器包括：检测电路，用于根据整流信号产生检测信号，并将检测信号累积在整流信号的OFF相位; 以及耦合到检测电路的电流沉降电路，用于当检测信号超过预定电平时，通过操作开关产生触发TRIAC电路的锁存电流。 本发明还公开了一种使用有源泄放电路的发光器件电源电路和TRIAC控制方法。

公开(公告)号：US08441196B2

公开(公告)日：2013-05-14

申请号：US13175653

申请日：2011-07-01

Applicant: Jing-Meng Liu

Inventor： Jing-Meng Liu

IPC: H05B37/00

CPC classification number: H05B33/086 ,  H05B33/0827

Abstract: The present invention discloses a multi-color light emitting device circuit, which includes: multiple light emitting device strings of different colors, a timing control circuit, a power regulator circuit, and preferably a dark feedback circuit. Each light emitting device string has multiple light emitting devices coupled in series. The number of the light emitting devices of each light emitting device string is determined by an operational voltage of the light emitting device, wherein at least two of the light emitting device strings have different numbers of the light emitting devices, such that voltage drops of the two light emitting device strings are closer to each other than in a case wherein the two light emitting device strings have the same number of the light emitting devices, and the response time of the light emitting device strings are increased.

Abstract translation: 本发明公开了一种多色发光器件电路，其包括：多种不同颜色的发光器件串，定时控制电路，功率调节电路，最好是暗反馈电路。 每个发光器件串具有串联耦合的多个发光器件。 每个发光器件串的发光器件的数量由发光器件的工作电压确定，其中至少两个发光器件串具有不同数量的发光器件，使得发光器件的电压降 两个发光器件串比两个发光器件串具有相同数量的发光器件的情况彼此更接近，并且发光器件串的响应时间增加。

公开(公告)号：US08400072B2

公开(公告)日：2013-03-19

申请号：US12942179

申请日：2010-11-09

Applicant: Pei-Cheng Huang ,  Jing-Meng Liu ,  Roland Van Roy

Inventor： Pei-Cheng Huang ,  Jing-Meng Liu ,  Roland Van Roy

IPC: H05B41/16 ,  H05B41/24 ,  H05B37/00 ,  H05B39/00 ,  H05B41/00 ,  H05B37/02 ,  H05B39/04 ,  G05F1/00

CPC classification number: H05B33/0818

Abstract: 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.

Abstract translation: 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：US08288967B2

公开(公告)日：2012-10-16

申请号：US12721829

申请日：2010-03-11

Applicant: Jing-Meng Liu

Inventor： Jing-Meng Liu

IPC: H05B37/02

CPC classification number: H05B33/0848 ,  H05B33/0818 ,  Y02B20/346

Abstract: A LED control circuit and method determine the frequency and duty of a LED driving signal according to a swing control signal and a dimming control signal, respectively. Responsive to the swing control signal, a pulse edge generator generates a clock whose frequency is determined by the swing control signal. Responsive to the clock and the dimming control signal, a duty ratio controller generates the LED driving signal whose frequency is determined by the clock frequency and whose duty is determined by the dimming control signal.

Abstract translation: LED控制电路和方法分别根据摆动控制信号和调光控制信号确定LED驱动信号的频率和占空比。 响应于摆动控制信号，脉冲沿发生器产生频率由摆动控制信号确定的时钟。 占空比控制器响应时钟和调光控制信号，产生频率由时钟频率确定的LED驱动信号，其占空比由调光控制信号决定。

公开(公告)号：US08125204B2

公开(公告)日：2012-02-28

申请号：US12008272

申请日：2008-01-10

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

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

IPC: G05F1/00

CPC classification number: G05F1/575

Abstract: 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.

Abstract translation: 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：US20110316424A1

公开(公告)日：2011-12-29

申请号：US13227055

申请日：2011-09-07

Applicant: CHIAWEI LIAO ,  JING-MENG LIU

Inventor： CHIAWEI LIAO ,  JING-MENG LIU

IPC: H05B37/02

CPC classification number: H05B33/089 ,  G02F1/133603 ,  G02F2001/133612

Abstract: 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.

Abstract translation: 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。