专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

61. 发明授权

US08593122B2 Control method for high efficiency buck-boost power converter 有权
标题翻译：高效率降压 - 升压功率转换器的控制方法
公开(公告)号：US08593122B2
公开(公告)日：2013-11-26
申请号：US12720034
申请日：2010-03-09
申请人： Ke-Horng Chen , Wei-Quan Wu , Hsin-Hsin Ho
发明人： Ke-Horng Chen , Wei-Quan Wu , Hsin-Hsin Ho
IPC分类号： G05F1/00
CPC分类号： H02M3/1582
摘要： A buck-boost power converter switches the switches thereof with a novel sequence and extends the switching periods of the switches to reduce the switching loss and conduction loss when the input voltage thereof approaches the output voltage thereof. The influence of the load current of the power converter on the duty thereof is taken into account to switch the power converter between modes at correct time points, so as to prevent the output voltage from being affected by the mode switching.
摘要翻译：降压 - 升压功率转换器以新颖的顺序切换其开关，并延长开关的开关周期，以在其输入电压接近其输出电压时降低开关损耗和导通损耗。考虑到功率转换器的负载电流对其占空比的影响，以在正确的时间点在模式之间切换功率转换器，以防止输出电压受模式切换的影响。

62. 发明授权

US08531165B2 Single-inductor multiple-output power converter 有权
标题翻译：单电感多输出功率转换器
公开(公告)号：US08531165B2
公开(公告)日：2013-09-10
申请号：US12720030
申请日：2010-03-09
申请人： Ke-Horng Chen , Ming-Hsin Huang
发明人： Ke-Horng Chen , Ming-Hsin Huang
IPC分类号： G05F1/40
CPC分类号： H02M3/158 , H02M2001/009
摘要： A single-inductor multiple-output power converter includes an inductor having a first terminal and a second terminal. The first terminal of the inductor is coupled to a power input terminal, and the second terminal of the inductor is switched to either of the first terminal of the inductor, multiple power output terminals, and a ground terminal. By switching the second terminal of the inductor between the first terminal of the inductor, the power output terminals, and the ground terminal, the power converter may provide multiple output voltages at the power output terminals respectively, in a less loss and thereby higher efficiency manner.
摘要翻译：单电感器多输出功率转换器包括具有第一端子和第二端子的电感器。电感器的第一端子耦合到电源输入端子，电感器的第二端子切换到电感器的第一端子，多个功率输出端子和接地端子。通过在电感器的第一端子，功率输出端子和接地端子之间切换电感器的第二端子，功率转换器可以以较少的损耗分别在功率输出端子处提供多个输出电压，从而以更高的效率方式。

63. 发明授权

US08502509B2 Power conversion system and power control method for reducing cross regulation effect 有权
标题翻译：电力转换系统和功率控制方法，减少交叉调节效应
公开(公告)号：US08502509B2
公开(公告)日：2013-08-06
申请号：US13568607
申请日：2012-08-07
申请人： Jean-shin Wu , Ke-Horng Chen
发明人： Jean-shin Wu , Ke-Horng Chen
IPC分类号： G05F1/652 , G05F1/613
CPC分类号： H02M3/157 , H02M3/158 , H02M2001/009
摘要： A power conversion system and power control method for reducing cross regulation effect uses a voltage feedback adjustment circuit to modulate an error signal fed back from an output voltage so as to predict the energy of an output corresponding to its load states. While the energy delivered to an output terminal with its load remaining the same does not change, the energy delivered to an output terminal with its load changing is adjusted accordingly. The power conversion system thus effectively reduces the cross regulation effect and obtains excellent steady system output and transient response.
摘要翻译：用于降低交叉调节效应的功率转换系统和功率控制方法使用电压反馈调整电路来调制从输出电压反馈的误差信号，以便预测与其负载状态对应的输出的能量。尽管输送端与其负载保持相同的能量并没有改变，但是相应地调整输出到其输出端的负载变化的能量。因此，电力转换系统有效降低了交叉调节效应，获得了良好的稳定系统输出和瞬态响应。

64. 发明授权

US08471486B2 Energy-saving mechanisms in multi-color display devices 有权
标题翻译：多色显示设备节能机制
公开(公告)号：US08471486B2
公开(公告)日：2013-06-25
申请号：US12764410
申请日：2010-04-21
申请人： Ming-Hsin Huang , Ke-Horng Chen
发明人： Ming-Hsin Huang , Ke-Horng Chen
IPC分类号： H05B37/02
CPC分类号： G05F1/46 , G09G3/3406 , G09G2320/064 , H05B33/0818 , H05B33/0827 , H05B37/02
摘要： Some embodiments regard a method comprising: using an input voltage to generate an output voltage having a first voltage level; in a first period, when the output voltage changes from the first voltage level to a second voltage level, storing electrical charges resulted from the output voltage changing from the first voltage level to the second voltage level; and in a second period subsequent to the first period when the output voltage demands energy, using a voltage generated from the stored electrical charges in place of the input voltage to generate the output voltage.
摘要翻译：一些实施例涉及一种方法，包括：使用输入电压来产生具有第一电压电平的输出电压; 在第一时段中，当输出电压从第一电压电平变为第二电压电平时，将从第一电压电平变化的输出电压产生的电荷存储到第二电压电平; 并且在输出电压需要能量的第一时段之后的第二时段中，使用从存储的电荷产生的电压代替输入电压以产生输出电压。

65. 发明授权

US08253401B2 Voltage conversion apparatus 有权
标题翻译：电压转换装置
公开(公告)号：US08253401B2
公开(公告)日：2012-08-28
申请号：US12557494
申请日：2009-09-10
申请人： Ke-Horng Chen , Yu-Huei Lee , Shih-Jung Wang , Chun-Yu Hsieh , Ying-Hsi Lin
发明人： Ke-Horng Chen , Yu-Huei Lee , Shih-Jung Wang , Chun-Yu Hsieh , Ying-Hsi Lin
IPC分类号： G05F1/10
CPC分类号： H02M3/1588 , Y02B70/1466
摘要： A voltage conversion apparatus includes a DC-to-DC conversion circuit, a sensing circuit, and a compensation circuit. The voltage conversion apparatus is capable of adaptively adjusting the system bandwidth according to the load. The system bandwidth is increased to make the converted voltage responding to the load rapidly when the voltage conversion apparatus is operated at a transient state; and the system bandwidth is decreased to increase the system stability when the voltage conversion circuit is operated at a steady state.
摘要翻译：电压转换装置包括DC-DC转换电路，感测电路和补偿电路。电压转换装置能够根据负载自适应地调整系统带宽。当电压转换装置处于瞬态状态时，增加系统带宽以使转换的电压响应负载快速; 并且当电压转换电路在稳定状态下运行时，系统带宽减小以提高系统稳定性。

66. 发明授权

US08193725B2 Voltage converter, backlight module control system and control method thereof 有权
标题翻译：电压转换器，背光模块控制系统及其控制方法
公开(公告)号：US08193725B2
公开(公告)日：2012-06-05
申请号：US12424549
申请日：2009-04-16
申请人： Ke-Horng Chen , Chun-Yu Hsieh , Chia-Lin Liu , Chi-Neng Mo , Hun-Wei Chen , Ming-Tsung Ho
发明人： Ke-Horng Chen , Chun-Yu Hsieh , Chia-Lin Liu , Chi-Neng Mo , Hun-Wei Chen , Ming-Tsung Ho
IPC分类号： G05F1/00
CPC分类号： H05B33/0827 , H02M3/156 , H05B33/0815 , Y02B20/347
摘要： A backlight module control system includes a plurality of backlight sub-modules, a control signals output unit, a voltage converter and a plurality of current control units. The control signals output circuit is for providing a voltage control signal, a current control signal and a plurality of PWM signals; the voltage converter is coupled to the control signals output circuit and the backlight sub-modules, and is for outputting an output voltage to the backlight sub-modules according to the voltage control signal; the current control units are coupled to the backlight sub-modules, respectively, and each current control unit is for determining a current of its corresponding backlight sub-module according to the current control signal, and each current control unit is further utilized for determining whether its corresponding backlight sub-module is enabled or not according to its corresponding PWM signal. In addition, only one backlight module is enabled at a same time.
摘要翻译：背光模块控制系统包括多个背光子模块，控制信号输出单元，电压转换器和多个电流控制单元。控制信号输出电路用于提供电压控制信号，电流控制信号和多个PWM信号; 电压转换器耦合到控制信号输出电路和背光子模块，并用于根据电压控制信号将输出电压输出到背光子模块; 电流控制单元分别耦合到背光子模块，并且每个电流控制单元用于根据当前控制信号确定其对应的背光子模块的电流，并且每个电流控制单元进一步用于确定是否其对应的背光子模块根据其相应的PWM信号使能或不使能。此外，只有一个背光模块同时启用。

67. 发明申请

US20120081008A1 CONTROL CIRCUIT MODULE OF LIGHT-EMITTING DIODE LAMP 审中-公开
标题翻译：发光二极管灯的控制电路模块
公开(公告)号：US20120081008A1
公开(公告)日：2012-04-05
申请号：US13164918
申请日：2011-06-21
申请人： Ke-Horng CHEN , Shao-Wei Chiu , Chun-Chieh Kuo , Yung-Lin Chen , Shih-Ping Tu
发明人： Ke-Horng CHEN , Shao-Wei Chiu , Chun-Chieh Kuo , Yung-Lin Chen , Shih-Ping Tu
IPC分类号： H05B37/02
CPC分类号： H05B33/0821 , H05B33/0809 , H05B33/083
摘要： The present invention relates to a control circuit module of light-emitting diode (LED) lamp, which comprises: a AC to DC element, for transferring mains AC power to DC power; a plurality of groups of LED; a plurality of switches, corresponding to the number of the groups of LED, for controlling to turn on/off the each group; a linear voltage regulator, for cutting the DC power from the AC to DC element to a plurality of voltage sections; a switch selector, for selecting to open/close the switches according to the voltage sections from the linear voltage regulator; a current selector, for capturing available current sections from the voltage sections of the linear voltage regulator; and a LED current setup device, for controlling the current sections to open/close the plurality of switches by a user according to the LED current setup device and the current selector.
摘要翻译：本发明涉及发光二极管（LED）灯的控制电路模块，其包括：AC至DC元件，用于将市电交流电转换为直流电; 多组LED; 多个开关，对应于LED组的数量，用于控制每个组的开/关; 线性电压调节器，用于将从AC到DC元件的DC电力切割到多个电压部分; 开关选择器，用于根据来自线性稳压器的电压部分选择开关; 电流选择器，用于从线性稳压器的电压部分捕获可用的电流部分; 以及LED电流设置装置，用于根据LED当前设置装置和当前选择器来控制用户根据当前部分打开/关闭多个开关。

68. 发明授权

US08077139B2 Driving circuit of backlight module 有权
标题翻译：背光模块的驱动电路
公开(公告)号：US08077139B2
公开(公告)日：2011-12-13
申请号：US12497542
申请日：2009-07-02
申请人： Shih-Meng Chang , Chia-Lin Liu , Chi-Neng Mo , Ke-Horng Chen , Chi-Lin Chen
发明人： Shih-Meng Chang , Chia-Lin Liu , Chi-Neng Mo , Ke-Horng Chen , Chi-Lin Chen
IPC分类号： G09G3/36
CPC分类号： H05B33/0818
摘要： A driving circuit of a backlight module is provided. The driving circuit has a dimming unit used for transmitting signals, wherein the dimming unit can adjust a current flowing through a light-emitting diode (LED) according a pulse width modulation signal and an enable signal, so as to adjust a light-emitting intensity of the LED. In the present invention, fewer devices are used to implement the dimming unit, and a transmission gate is replaced by a N-type transistor and a P-type transistor, such that a chip area and a circuit cost of the driving circuit are reduced.
摘要翻译：提供背光模块的驱动电路。驱动电路具有用于发送信号的调光单元，其中调光单元可以根据脉宽调制信号和使能信号来调节流过发光二极管（LED）的电流，以便调节发光强度的LED。在本发明中，使用较少的器件来实现调光单元，并且传输门被N型晶体管和P型晶体管代替，使得驱动电路的芯片面积和电路成本降低。

69. 发明授权

US08018210B2 Voltage converting circuit and method thereof 有权
标题翻译：电压转换电路及其方法
公开(公告)号：US08018210B2
公开(公告)日：2011-09-13
申请号：US12696023
申请日：2010-01-28
申请人： Ke-Horng Chen , Shih-Jung Wang , Yu-Huei Lee , Yung-Chih Lai , Hsuan-Yu Tsai
发明人： Ke-Horng Chen , Shih-Jung Wang , Yu-Huei Lee , Yung-Chih Lai , Hsuan-Yu Tsai
IPC分类号： G05F1/613 , G05F1/00
CPC分类号： H02M3/156
摘要： A voltage converting circuit including a power stage, a filter, a comparator, a first and a second feedback units. The power stage receives an input voltage and outputs the input voltage according to a duty cycle. The filter receives the input voltage to convert the input voltage into a current, and filters the current to obtain an output voltage. The first feedback unit amplifies a difference between a reference voltage and the output voltage to obtain an error voltage. The second feedback unit calculates the quadratic differential and integration of the output voltage to obtain a sensing voltage. The comparator compares the error voltage and the sensing voltage, and outputs a comparing result to adjust a duty ratio. Herein, a ripple of the output voltage is linearly proportional to that of the current, and DC divided voltage level of the output voltage is substantially equal to the reference voltage.
摘要翻译：一种电压转换电路，包括功率级，滤波器，比较器，第一和第二反馈单元。功率级接收输入电压，并根据占空比输出输入电压。滤波器接收输入电压以将输入电压转换为电流，并对电流进行滤波以获得输出电压。第一反馈单元放大参考电压和输出电压之间的差以获得误差电压。第二反馈单元计算输出电压的二次微分和积分以获得感测电压。比较器比较误差电压和感测电压，并输出比较结果以调整占空比。这里，输出电压的波动与电流的波动成线性比例，输出电压的直流分压电压基本上等于基准电压。

70. 发明授权

US08018170B2 Light emitting diode driving module 失效
标题翻译：发光二极管驱动模块
公开(公告)号：US08018170B2
公开(公告)日：2011-09-13
申请号：US12147492
申请日：2008-06-27
申请人： Ke-Horng Chen , Chia-Lin Chiu , Lan-Shan Cheng
发明人： Ke-Horng Chen , Chia-Lin Chiu , Lan-Shan Cheng
IPC分类号： H05B37/00
CPC分类号： H05B33/0815 , H05B33/0827
摘要： An LED driving module suitable to drive a plurality of LED strings in parallel connection is disclosed. The LED driving module includes a voltage converting apparatus, a conduction voltage detecting apparatus, a reference voltage generating apparatus and a current-adjusting apparatus. The voltage converting apparatus produces a driving voltage according to a conduction voltage. The conduction voltage detecting apparatus detects the conducting states of the LED strings for producing a conduction voltage and an enabling signal. The reference voltage generating apparatus generates a first reference voltage according to the enabling signal. The current-adjusting apparatus produces a plurality of driving currents according to the first reference voltage, and the driving currents flow through the LED strings.
摘要翻译：公开了一种适合驱动并联连接的多个LED串的LED驱动模块。 LED驱动模块包括电压转换装置，导通电压检测装置，参考电压产生装置和电流调节装置。电压转换装置根据导通电压产生驱动电压。导通电压检测装置检测用于产生导通电压的LED串的导通状态和使能信号。参考电压产生装置根据使能信号产生第一参考电压。电流调节装置根据第一参考电压产生多个驱动电流，并且驱动电流流过LED串。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式