专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08421436B2 Step-down converter maintaining stable operation at start up 失效
标题翻译：降压转换器在启动时保持稳定运行
公开(公告)号：US08421436B2
公开(公告)日：2013-04-16
申请号：US12635018
申请日：2009-12-10
申请人： Hyung-wan Kim , Hyeong-sik Choi , Gil-yong Chang
发明人： Hyung-wan Kim , Hyeong-sik Choi , Gil-yong Chang
IPC分类号： H02M3/155
CPC分类号： H02M3/155
摘要： A step-down converter is provided. The step-down converter includes a DC-DC converter including a boost capacitor and an NMOS transistor, the DC-DC converter converting an input direct current (DC) voltage to an output DC voltage; and an electric discharge circuit which adjusts the output voltage to be less than or equal to the input voltage.
摘要翻译：提供降压转换器。降压转换器包括DC-DC转换器，其包括升压电容器和NMOS晶体管，所述DC-DC转换器将输入直流（DC）电压转换为输出直流电压; 以及将输出电压调整为小于或等于输入电压的放电电路。

2. 发明授权

US06975523B2 Power supply capable of protecting electric device circuit 失效
标题翻译：电源能够保护电气设备电路
公开(公告)号：US06975523B2
公开(公告)日：2005-12-13
申请号：US10685564
申请日：2003-10-16
申请人： Hyung-wan Kim , Gil-yong Chang
发明人： Hyung-wan Kim , Gil-yong Chang
IPC分类号： H01L31/12 , H02H3/20 , H02H7/122 , H02H7/125 , H02M1/32 , H02M3/28 , H02M7/122
CPC分类号： H02H7/1252 , H02M1/32 , H02M2001/0006 , H02M2001/0032 , H02M2001/009 , Y02B70/16
摘要： A power supply protecting the electric device circuit when over-voltage is applied, is provided. The power supply has a rectifying unit rectifying AC power externally supplied, into first and second DC power and outputting the first and the second DC power; a main power supply transformer boosting the first DC power and supplying the boosted first DC power to the electric device circuit; a switching controlling unit driven by the second DC power, performing the operation on the main power supply transformer that causes the first DC power to be boosted when the second DC power is received; and a controlling unit determining whether the second DC power is to be supplied to the switching controlling unit, wherein the controlling unit senses the voltage supplied to the electric device circuit and interrupts supplying the second DC power to the switching controlling unit if the sensed voltage exceeds a given value.
摘要翻译：提供了在施加过电压时保护电气设备电路的电源。电源具有将外部交流电源整流到整流单元的第一和第二直流电力并输出第一和第二直流电力; 主电源变压器升压第一直流电源并将升压的第一直流电力提供给电气设备电路; 由所述第二直流电驱动的开关控制单元，在接收到所述第二直流电力时，对所述主电源变压器进行使所述第一直流电力升压的动作; 以及控制单元，确定是否将第二DC电力提供给切换控制单元，其中，如果感测到的电压超过，则控制单元感测提供给电气设备电路的电压并且中断向开关控制单元提供第二DC电力一个给定的值。

3. 发明授权

US08872469B2 Method and apparatus for providing standby power for visual display device 有权
标题翻译：为视觉显示装置提供备用电源的方法和装置
公开(公告)号：US08872469B2
公开(公告)日：2014-10-28
申请号：US12711790
申请日：2010-02-24
申请人： Sung-yong Joo , Gil-yong Chang , Jin-hyung Lee
发明人： Sung-yong Joo , Gil-yong Chang , Jin-hyung Lee
IPC分类号： H01M6/50 , G06F1/26 , H02J7/04 , H02J7/35 , H04W52/02 , H02J9/06
CPC分类号： G06F1/263 , H02J7/045 , H02J7/35 , H02J9/061 , H04W52/0296 , Y02B10/72 , Y02D70/00 , Y10T307/625
摘要： Provided are an apparatus and method thereof for providing standby power to a visual display, the apparatus including: a light collection unit which is operable to receive light and output a charging current; a battery which is operable to receive the charging current and providing the standby power to the visual display; and a controller which determines whether the battery has a voltage below a predetermined value, wherein if the voltage is below the predetermined value, the controller controls the battery to receive the charging current from the light collection unit, and wherein if the voltage is not below the predetermined value, the controller controls the battery to provide the standby power to the visual display.
摘要翻译：提供了一种用于向视觉显示器提供待机电力的装置和方法，该装置包括：光采集单元，其可操作以接收光并输出充电电流; 电池，其可操作以接收所述充电电流并将所述备用电力提供给所述视觉显示器; 以及控制器，其确定电池是否具有低于预定值的电压，其中如果电压低于预定值，则控制器控制电池从光收集单元接收充电电流，并且其中如果电压不低于该预定值，控制器控制电池以向视觉显示提供待机电力。

4. 发明授权

US08569954B2 Luminescence driving apparatus, display apparatus, and driving method thereof 有权
标题翻译：发光驱动装置，显示装置及其驱动方法
公开(公告)号：US08569954B2
公开(公告)日：2013-10-29
申请号：US13053754
申请日：2011-03-22
申请人： Jeong-il Kang , Gil-yong Chang , Young-deok Choi , Hyo-soon Choi
发明人： Jeong-il Kang , Gil-yong Chang , Young-deok Choi , Hyo-soon Choi
IPC分类号： H05B39/10
CPC分类号： H05B33/089 , Y02B20/341
摘要： A luminescence driving apparatus, a display apparatus, and a driving method thereof are provided. The luminescence driving apparatus drives a plurality of light-emitting units and includes: a voltage sensor which senses internal voltages of the plurality of light-emitting units; a current sensor which senses internal currents of the plurality of light-emitting units; a sensing signal generator which receives the internal voltages of the plurality of light-emitting units from the voltage sensor to generate an overvoltage sensing signal; a controller which, if it is determined that an overvoltage state has occurred, according to a level of the overvoltage sensing signal, searches for at least one of the plurality of light-emitting units in which the overvoltage state has occurred, according to levels of the internal currents sensed by the current sensor; and a protector which performs an overvoltage protection (OVP) operation with respect to the searched light-emitting unit.
摘要翻译：提供了发光驱动装置，显示装置及其驱动方法。发光驱动装置驱动多个发光单元，包括：感测多个发光单元的内部电压的电压传感器; 感测多个发光单元的内部电流的电流传感器; 感测信号发生器，其从所述电压传感器接收所述多个发光单元的内部电压，以产生过电压感测信号; 控制器，如果根据过电压感测信号的电平确定已经发生过电压状态，则根据其中发生过电压状态的多个发光单元中的至少一个，根据由电流传感器感测的内部电流; 以及对搜索到的发光单元执行过电压保护（OVP）操作的保护器。

5. 发明授权

US09123298B2 LED driving apparatus, method for driving LED, and display apparatus thereof 有权
标题翻译： LED驱动装置，LED驱动方法及其显示装置
公开(公告)号：US09123298B2
公开(公告)日：2015-09-01
申请号：US13617278
申请日：2012-09-14
申请人： Tae-sung Kim , Jeong-il Kang , Young-soo Kim , Gil-yong Chang
发明人： Tae-sung Kim , Jeong-il Kang , Young-soo Kim , Gil-yong Chang
IPC分类号： H05B37/02 , G09G3/34 , H05B33/08
CPC分类号： G09G3/3406 , H05B33/0815 , H05B33/0848
摘要： A display apparatus is provided. The display apparatus includes a display panel which displays an image, a LED module which provides backlight to the display panel, a LED driving unit which selectively uses current of an inductor to apply driving voltage to the LED module, a sensing unit which senses a current value of the inductor, and a switching control unit which adjusts the driving voltage according to sensing result by the sensing unit.
摘要翻译：提供一种显示装置。显示装置包括显示图像的显示面板，向显示面板提供背光的LED模块，选择性地使用电感器的电流以向LED模块施加驱动电压的LED驱动单元，感测电流的感测单元电感器的值，以及根据感测单元的感测结果来调节驱动电压的开关控制单元。

6. 发明申请

US20110163602A1 METHOD AND APPARATUS FOR PROVIDING STANDBY POWER FOR VISUAL DISPLAY DEVICE 有权
标题翻译：提供视觉显示设备的待机功能的方法和装置
公开(公告)号：US20110163602A1
公开(公告)日：2011-07-07
申请号：US12711790
申请日：2010-02-24
申请人： Sung-yong Joo , Gil-yong Chang , Jin-hyung Lee
发明人： Sung-yong Joo , Gil-yong Chang , Jin-hyung Lee
IPC分类号： H02J9/00 , H02J7/00
CPC分类号： G06F1/263 , H02J7/045 , H02J7/35 , H02J9/061 , H04W52/0296 , Y02B10/72 , Y02D70/00 , Y10T307/625
摘要： Provided are an apparatus and method thereof for providing standby power to a visual display, the apparatus including: a light collection unit which is operable to receive light and output a charging current; a battery which is operable to receive the charging current and providing the standby power to the visual display; and a controller which determines whether the battery has a voltage below a predetermined value, wherein if the voltage is below the predetermined value, the controller controls the battery to receive the charging current from the light collection unit, and wherein if the voltage is not below the predetermined value, the controller controls the battery to provide the standby power to the visual display.
摘要翻译：提供了一种用于向视觉显示器提供待机电力的装置和方法，该装置包括：光采集单元，其可操作以接收光并输出充电电流; 电池，其可操作以接收所述充电电流并将所述备用电力提供给所述视觉显示器; 以及控制器，其确定电池是否具有低于预定值的电压，其中如果电压低于预定值，则控制器控制电池从光收集单元接收充电电流，并且其中如果电压不低于该预定值，控制器控制电池以向视觉显示提供待机电力。

7. 发明授权

US08824181B2 Apparatus and method for a switch mode power supply configured to reduce standby power consumption 有权
标题翻译：用于开关模式电源的装置和方法，其被配置为减少待机功耗
公开(公告)号：US08824181B2
公开(公告)日：2014-09-02
申请号：US13181118
申请日：2011-07-12
申请人： Hyo-soon Choi , Gil-yong Chang
发明人： Hyo-soon Choi , Gil-yong Chang
IPC分类号： H02M7/217
CPC分类号： H02M3/335 , H02M2001/0032 , Y02B70/16
摘要： A switch mode power supply (SMPS) is capable of reducing standby power consumption, and includes a power factor capacitor (PFC) bulk capacitor which supplies power in a standby mode to constant loads by repeatedly charging and discharging a voltage, a PFC controller which controls the voltage to be charged in the PFC bulk capacitor, a first resistor and a second resistor which divide the voltage of the PFC bulk capacitor and output a reference voltage, and a control unit which controls the charging and discharging of the voltage of the PFC bulk capacitor in accordance with the reference voltage.
摘要翻译：开关模式电源（SMPS）能够降低待机功耗，并且包括功率因数电容器（PFC）大容量电容器，其通过重复地对电压进行放电，在待机模式下为恒定负载供电;控制PFC控制器在PFC大容量电容器中要充电的电压，第一电阻器和第二电阻器，其分压PFC大容量电容器的电压并输出参考电压;以及控制单元，其控制PFC体积的电压的充电和放电电容器根据参考电压。

8. 发明授权

US08890443B2 Backlight unit and method for controlling LED 有权
标题翻译：背光单元及LED控制方法
公开(公告)号：US08890443B2
公开(公告)日：2014-11-18
申请号：US13398921
申请日：2012-02-17
申请人： Jeong-il Kang , Ju-taek Lee , Gil-yong Chang
发明人： Jeong-il Kang , Ju-taek Lee , Gil-yong Chang
IPC分类号： H05B37/02 , G09G3/34 , H05B33/08
CPC分类号： G09G3/3406 , G09G2320/041 , G09G2330/045 , H05B33/089
摘要： A backlight unit is provided, which includes a light-emitting diode LED, an LED driving unit which drives the LED, a control unit which measures a temperature of the LED driving unit, and, if the temperature exceeds a preset threshold temperature, interrupts an operation of the LED driving unit, and a threshold temperature adjustment unit which changes the preset threshold temperature based on a limit temperature of a circuit element included in the LED driving unit.
摘要翻译：提供了一种背光单元，其包括发光二极管LED，驱动LED的LED驱动单元，测量LED驱动单元的温度的控制单元，并且如果温度超过预设阈值温度，则中断一个 LED驱动单元的动作以及阈值温度调整单元，其基于LED驱动单元所包含的电路元件的极限温度来改变预设阈值温度。

9. 发明授权

US08698849B2 Display device and driving method with feedback control 失效
标题翻译：具有反馈控制的显示装置和驱动方法
公开(公告)号：US08698849B2
公开(公告)日：2014-04-15
申请号：US12948872
申请日：2010-11-18
申请人： Won-myung Woo , Jin-hyung Lee , Gil-yong Chang
发明人： Won-myung Woo , Jin-hyung Lee , Gil-yong Chang
IPC分类号： G09G5/10
CPC分类号： H05B33/0827 , G09G3/3406 , H05K1/11
摘要： A display device and a driving method are provided. The display device includes: a display panel which displays an image; at least one light emitting diode (LED) which emits light to the display panel; a driver which supplies an operating voltage to the LED and drives the LED; a feedback unit which detects a level of a voltage drop of the LED and outputs a detection signal corresponding to the detected level of the voltage drop; and a first controller which controls a level of the operating voltage supplied to the LED based on the operating voltage supplied to the LED and the detection signal output by the feedback unit.
摘要翻译：提供了显示装置和驱动方法。显示装置包括：显示面板，显示图像; 至少一个发光二极管（LED），其向所述显示面板发光; 向LED提供工作电压并驱动LED的驱动器; 反馈单元，其检测LED的电压降的水平，并输出对应于检测到的电压降的电平的检测信号; 以及第一控制器，其基于提供给LED的工作电压和由反馈单元输出的检测信号来控制提供给LED的工作电压的电平。

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