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

US08531113B2 Driving apparatus and driving method of LED device 有权
标题翻译： LED装置的驱动装置和驱动方法
公开(公告)号：US08531113B2
公开(公告)日：2013-09-10
申请号：US13106708
申请日：2011-05-12
申请人： Ilyong Jung , Chan Son , Moonho Choi , Seunguk Yang
发明人： Ilyong Jung , Chan Son , Moonho Choi , Seunguk Yang
IPC分类号： H05B37/02
CPC分类号： H05B33/089 , H05B33/0815 , H05B33/0824 , H05B33/0827 , Y02B20/341 , Y02B20/347
摘要： A driving apparatus of an LED device is provided. The LED device includes a plurality of LED channels, and each LED channel includes a plurality of LEDs connected in series. A power converter has an output terminal connected to a first terminal of each LED channel, and converts an input voltage into an output voltage to output the output voltage to the output terminal. A plurality of current controllers correspond to the plurality of LED channels, respectively. Each current controller is connected to a second terminal of a corresponding LED channel, and controls a current of the corresponding LED channel. The voltage sensor outputs a sensed voltage corresponding to the output voltage of the output terminal. The fault controller determines whether to stop operation of the power converter by comparing the sensed voltage with a reference voltage.
摘要翻译：提供了一种LED装置的驱动装置。 LED装置包括多个LED通道，并且每个LED通道包括串联连接的多个LED。电源转换器具有连接到每个LED通道的第一端子的输出端子，并且将输入电压转换为输出电压以将输出电压输出到输出端子。多个电流控制器分别对应于多个LED通道。每个电流控制器连接到相应的LED通道的第二端子，并控制对应的LED通道的电流。电压传感器输出与输出端子的输出电压对应的检测电压。故障控制器通过将检测到的电压与参考电压进行比较来确定是否停止功率转换器的操作。

2. 发明授权

US08912724B2 LED emitting device and driving method thereof 有权
标题翻译： LED发光装置及其驱动方法
公开(公告)号：US08912724B2
公开(公告)日：2014-12-16
申请号：US13570628
申请日：2012-08-09
申请人： Chan Son , Ilyong Jung , Moonho Choi
发明人： Chan Son , Ilyong Jung , Moonho Choi
IPC分类号： H05B37/02 , H05B33/08
CPC分类号： H05B33/0812 , H05B33/0815 , H05B33/0848 , Y02B20/341 , Y02B20/343 , Y02B20/346
摘要： The present invention relates to an LED emitting device and a driving method thereof. The LED emitting device receives an input voltage and supplies a power supply voltage needed for operating an LED channel according to a switching operation of a power switch. The LED emitting device controls the power supply and also controls a load switch between the LED channel and an output voltage. The LED emitting device determines the LED channel to be short circuited when the output voltage is reduced to a predetermined threshold voltage during a predetermined short circuit sense period starting from the time when the output voltage reaches a regulated voltage before the LED channel is dimmed. During the short circuit sense period, the power supply is stopped and the load switch is turned on.
摘要翻译：本发明涉及LED发光装置及其驱动方法。 LED发光装置接收输入电压，并且根据电源开关的切换操作提供操作LED通道所需的电源电压。 LED发光装置控制电源，并且还控制LED通道和输出电压之间的负载开关。当在LED通道变暗之前从输出电压达到调节电压的时间开始的预定短路感测期间，当输出电压降低到预定阈值电压时，LED发光器件确定LED通道短路。在短路检测期间，电源停止，负载开关接通。

3. 发明授权

US08816607B2 LED emitting device and driving method thereof 有权
标题翻译： LED发光装置及其驱动方法
公开(公告)号：US08816607B2
公开(公告)日：2014-08-26
申请号：US13354115
申请日：2012-01-19
申请人： Jinhwa Chung , Byunghak Ahn , Moonho Choi , Jaewoon Kim
发明人： Jinhwa Chung , Byunghak Ahn , Moonho Choi , Jaewoon Kim
IPC分类号： H05B37/02 , F21S9/04 , H05B33/08
CPC分类号： H05B33/0815 , H05B33/0818 , H05B33/0827 , H05B33/0851
摘要： The present invention relates to an LED light emitting device and a driving method thereof. The LED light emitting device supplies a power supply voltage to at least two LED channels. The LED light emitting device samples channel voltages of the at least two LED channels to detect a minimum voltage from among the sampled voltages, and amplifies a difference between the detected minimum voltage and a predetermined reference voltage to generate an error amplifying signal. The LED light emitting device generates an enable signal having a duty extended by a predetermined delay period from a duty of a dimming signal for controlling light emission periods of the at least two LED channels. In this instance, the error generator is operable by the enable signal.
摘要翻译：本发明涉及一种LED发光装置及其驱动方法。 LED发光装置向至少两个LED通道提供电源电压。 LED发光器件对至少两个LED通道的通道电压进行采样，以检测采样电压中的最小电压，并放大检测到的最小电压和预定参考电压之间的差以产生误差放大信号。 LED发光装置生成使能信号，该使能信号具有从用于控制至少两个LED通道的发光周期的调光信号的占空比延长了预定延迟周期的占空比。在这种情况下，误差发生器可由使能信号操作。

4. 发明授权

US08729822B2 LED emitting device and driving method thereof 有权
标题翻译： LED发光装置及其驱动方法
公开(公告)号：US08729822B2
公开(公告)日：2014-05-20
申请号：US13191174
申请日：2011-07-26
申请人： Jinhwa Chung , Frank Chang , Byunghak Ahn , Moonho Choi
发明人： Jinhwa Chung , Frank Chang , Byunghak Ahn , Moonho Choi
IPC分类号： H05B37/02
CPC分类号： H05B33/0827
摘要： The present invention relates to an LED emitting device and a driving method thereof including at least two LED channels. If a power source voltage supplied to an LED emitting device reaches a predetermined threshold voltage, the power source voltage is maintained as a threshold voltage during an overvoltage regulation period.
摘要翻译：本发明涉及一种LED发光装置及其驱动方法，其包括至少两个LED通道。如果提供给LED发射装置的电源电压达到预定阈值电压，则在过电压调节周期期间将电源电压维持为阈值电压。

5. 发明授权

US08365209B2 Optical disc drive 失效
标题翻译：光盘驱动器
公开(公告)号：US08365209B2
公开(公告)日：2013-01-29
申请号：US13071026
申请日：2011-03-24
申请人： Jaesung Lee , Moonho Choi , Seunghon Yoo , Yoonchul Rhim , Hyeonggi Kim
发明人： Jaesung Lee , Moonho Choi , Seunghon Yoo , Yoonchul Rhim , Hyeonggi Kim
IPC分类号： G11B33/14
CPC分类号： G11B33/022 , G11B33/148
摘要： An optical disc drive is disclosed. The optical disc drive comprises a housing including an upper housing and a lower housing; and a herringbone pattern that is protruded toward the inner space of the housing on the inner surface of the upper housing and causes an air flow generated by the rotation of an optical disc to be switched to the direction of the optical disc. The herringbone pattern comprises at least one inflection point, and makes an acute angle at the inflection point relative to the direction of the air flow formed along the inner surface of the upper housing. Accordingly, the optical disc can be stably chucked and rotated by switching the air flow generated by the rotation of the optical disc to the direction of the optical disc.
摘要翻译：公开了一种光盘驱动器。光盘驱动器包括壳体，其包括上壳体和下壳体; 以及在上壳体的内表面上朝向壳体的内部空间突出的人字形图案，并且使由光盘旋转产生的空气流切换到光盘的方向。人字形图案包括至少一个拐点，并且在相对于沿着上壳体的内表面形成的空气流的方向的拐点处形成锐角。因此，通过将由光盘的旋转产生的空气流切换到光盘的方向，可以稳定地夹持和旋转光盘。

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