公开(公告)号：US08994281B2

公开(公告)日：2015-03-31

申请号：US13620290

申请日：2012-09-14

申请人： Jong Tae Hwang ,  Deuk Hee Park ,  Sang Hyun Cha ,  Chang Seok Lee ,  Yun Joong Lee

发明人： Jong Tae Hwang ,  Deuk Hee Park ,  Sang Hyun Cha ,  Chang Seok Lee ,  Yun Joong Lee

IPC分类号： H05B37/00 ,  H05B37/02 ,  H05B33/08

CPC分类号： H05B33/0815

摘要： There is provided a light emitting diode driving apparatus capable of supplying a constant average current to a light emitting diode by generating a reference voltage used for driving the light emitting diode according to input power and a switching signal switching a path of a current supplied to the light emitting diode. The light emitting diode driving apparatus includes: a reference voltage generating unit generating a reference voltage set based on input power and a switching signal for supplying driving power to a light emitting diode; and a driving unit supplying the driving power to the light emitting diode according to the reference voltage.

摘要翻译： 提供了一种发光二极管驱动装置，其能够通过根据输入功率产生用于驱动发光二极管的参考电压，并向切换信号切换提供给发光二极管的电流的路径，向发光二极管提供恒定的平均电流 发光二极管。 发光二极管驱动装置包括：参考电压产生单元，其基于输入功率产生基准电压和用于向发光二极管提供驱动电力的开关信号; 以及驱动单元，根据参考电压将驱动电力提供给发光二极管。

公开(公告)号：US08917025B2

公开(公告)日：2014-12-23

申请号：US13605101

申请日：2012-09-06

申请人： Deuk Hee Park ,  Yun Joong Lee ,  Sang Hyun Cha ,  Jae Shin Lee ,  Chang Seok Lee

发明人： Deuk Hee Park ,  Yun Joong Lee ,  Sang Hyun Cha ,  Jae Shin Lee ,  Chang Seok Lee

IPC分类号： H05B37/00 ,  H05B33/08

CPC分类号： H05B33/0845 ,  H05B33/0806 ,  H05B33/083

摘要： Disclosed herein is a light emitting diode (LED) driving apparatus including: at least one energy storages connected in series with each other; a plurality of LEDs each connected in parallel with each of the energy storages; and a switching control unit selectively connecting the at least one energy storages according to a level of applied voltage to charge/discharge voltage in/from the selected energy storages and control driving of the LEDs by the charging/discharging operation. Therefore, it is possible to easily drive the LEDs without a converter.

摘要翻译： 本文公开了一种发光二极管（LED）驱动装置，包括：至少一个彼此串联连接的能量存储器; 每个与每个能量存储器并联连接的多个LED; 以及开关控制单元，其根据所施加的电压的水平选择性地将所述至少一个能量存储器连接到所选择的能量存储器中的/从所选择的能量存储器中的充电/放电电压，并且通过所述充电/放电操作控制所述LED的驱动。 因此，可以容易地驱动没有转换器的LED。

公开(公告)号：US20140035476A1

公开(公告)日：2014-02-06

申请号：US13620290

申请日：2012-09-14

申请人： Jong Tae HWANG ,  Deuk Hee PARK ,  Sang Hyun CHA ,  Chang Seok LEE ,  Yun Joong LEE

发明人： Jong Tae HWANG ,  Deuk Hee PARK ,  Sang Hyun CHA ,  Chang Seok LEE ,  Yun Joong LEE

IPC分类号： H05B37/00

CPC分类号： H05B33/0815

摘要： There is provided a light emitting diode driving apparatus capable of supplying a constant average current to a light emitting diode by generating a reference voltage used for driving the light emitting diode according to input power and a switching signal switching a path of a current supplied to the light emitting diode. The light emitting diode driving apparatus includes: a reference voltage generating unit generating a reference voltage set based on input power and a switching signal for supplying driving power to a light emitting diode; and a driving unit supplying the driving power to the light emitting diode according to the reference voltage.

摘要翻译： 提供了一种发光二极管驱动装置，其能够通过根据输入功率产生用于驱动发光二极管的参考电压，并向切换信号切换提供给发光二极管的电流的路径，向发光二极管提供恒定的平均电流 发光二极管。 发光二极管驱动装置包括：参考电压产生单元，其基于输入功率产生基准电压和用于向发光二极管提供驱动电力的开关信号; 以及驱动单元，根据参考电压将驱动电力提供给发光二极管。

公开(公告)号：US20130076253A1

公开(公告)日：2013-03-28

申请号：US13605101

申请日：2012-09-06

申请人： Deuk Hee Park ,  Yun Joong Lee ,  Sang Hyun Cha ,  Jae Shin Lee ,  Chang Seok Lee

发明人： Deuk Hee Park ,  Yun Joong Lee ,  Sang Hyun Cha ,  Jae Shin Lee ,  Chang Seok Lee

IPC分类号： H05B37/00

CPC分类号： H05B33/0845 ,  H05B33/0806 ,  H05B33/083

摘要： Disclosed herein is a light emitting diode (LED) driving apparatus including: at least one energy storages connected in series with each other; a plurality of LEDs each connected in parallel with each of the energy storages; and a switching control unit selectively connecting the at least one energy storages according to a level of applied voltage to charge/discharge voltage in/from the selected energy storages and control driving of the LEDs by the charging/discharging operation. Therefore, it is possible to easily drive the LEDs without a converter.

摘要翻译： 本文公开了一种发光二极管（LED）驱动装置，包括：至少一个彼此串联连接的能量存储器; 每个与每个能量存储器并联连接的多个LED; 以及开关控制单元，其根据所施加的电压的水平选择性地将所述至少一个能量存储器连接到所选择的能量存储器中的/从所选择的能量存储器中的充电/放电电压，并且通过所述充电/放电操作控制所述LED的驱动。 因此，可以容易地驱动没有转换器的LED。

公开(公告)号：US20140001973A1

公开(公告)日：2014-01-02

申请号：US13613692

申请日：2012-09-13

申请人： Deuk Hee PARK ,  Yun Joong Lee ,  Sang Hyun Cha ,  Chang Seok Lee

发明人： Deuk Hee PARK ,  Yun Joong Lee ,  Sang Hyun Cha ,  Chang Seok Lee

IPC分类号： H05B37/02

CPC分类号： H05B33/0815 ,  H02M1/4258 ,  Y02B20/346 ,  Y02B70/126

摘要： There is provided a light emitting diode driving apparatus for controlling the light emitting diode driving according to a feedback signal input through a positive feedback loop, the light emitting diode driving apparatus including: a power converting unit switching input power and supplying driving power to at least one light emitting diode; a feedback unit detecting and feeding back a voltage of the driving power of the power converting unit; and a controlling unit including a comparator having a negative terminal receiving a reference voltage having a set voltage level and a positive terminal receiving the detected voltage from the feedback unit and comparing the reference voltage with the detected voltage to control a switching of the power converting unit according to a comparison result.

摘要翻译： 提供了一种发光二极管驱动装置，用于根据通过正反馈环路输入的反馈信号来控制发光二极管驱动，该发光二极管驱动装置包括：功率转换单元，用于切换输入电力并将驱动功率提供给至少 一个发光二极管; 反馈单元，检测并反馈所述电力转换单元的驱动电力的电压; 以及控制单元，其包括比较器，其具有接收具有设定电压电平的参考电压的负极端子和从所述反馈单元接收所述检测到的电压的正极端子，并且将所述参考电压与所述检测到的电压进行比较，以控制所述功率转换单元 根据比较结果。