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1. 发明申请

US20120319609A1 LIGHT EMITTING DIODE DRIVER HAVING OFFSET VOLTAGE COMPENSATING FUNCTION 审中-公开
标题翻译：具有偏置电压补偿功能的发光二极管驱动器
公开(公告)号：US20120319609A1
公开(公告)日：2012-12-20
申请号：US13288728
申请日：2011-11-03
申请人： Joong Ho CHOI , Seok Lee , Jae Hoon Kim , Jae Shin Lee , Yeun Joong Lee , Deuk Hee Park , Sang Hyun Cha , Chang Seok Lee , Jung Eui Park
发明人： Joong Ho CHOI , Seok Lee , Jae Hoon Kim , Jae Shin Lee , Yeun Joong Lee , Deuk Hee Park , Sang Hyun Cha , Chang Seok Lee , Jung Eui Park
IPC分类号： H05B37/02
CPC分类号： H05B33/0812 , H05B33/0848 , Y02B20/345
摘要： There is provided a light emitting diode (LED) driver having an offset voltage compensating function compensating for an offset voltage generated at the time of driving of an LED, the LED driver including: a driving unit detecting a current flowing in an LED unit having at least one LED, as a voltage and controlling the current flowing in the LED unit according to a comparison result between the detected voltage and a reference voltage having a preset voltage level; and an offset compensating unit integrating a voltage difference between the detected voltage and the reference voltage and adding or subtracting a compensating current according to an integration result to thereby compensate for an offset.
摘要翻译：提供一种发光二极管（LED）驱动器，其具有补偿在驱动LED时产生的偏移电压的偏移电压补偿功能，所述LED驱动器包括：驱动单元，其检测在具有至少一个LED作为电压，并且根据检测到的电压和具有预设电压电平的参考电压之间的比较结果来控制在LED单元中流动的电流; 以及偏移补偿单元，其将检测到的电压和参考电压之间的电压差积分，并根据积分结果来补偿或减去补偿电流，从而补偿偏移。

2. 发明申请

US20130033191A1 LIGHT EMITTING DIODE DRIVING DEVICE AND METHOD THEREOF 审中-公开
标题翻译：发光二极管驱动装置及其方法
公开(公告)号：US20130033191A1
公开(公告)日：2013-02-07
申请号：US13278867
申请日：2011-10-21
申请人： Joong Ho CHOI , Seok Lee , Jae Hoon Kim , Jae Shin Lee , Yeun Joong Lee , Deuk Hee Park , Sang Hyun Cha , Chang Seok Lee , Jung Eui Park
发明人： Joong Ho CHOI , Seok Lee , Jae Hoon Kim , Jae Shin Lee , Yeun Joong Lee , Deuk Hee Park , Sang Hyun Cha , Chang Seok Lee , Jung Eui Park
IPC分类号： H05B37/02
CPC分类号： H05B33/0824
摘要： There are provided a light emitting diode (LED) driving device allowing for an increase in an LED driving rate by discharging a charge stored in a capacitor during a certain period of time and a method thereof. The LED driving device includes: a driving unit detecting a current, as a voltage, the current flowing across an LED unit having at least one LED, controlling the current flowing across the LED unit according to a comparison result between the detected voltage and a reference voltage having a pre-set voltage level, and having a capacitor stabilizing an operation of the LED unit when the LED unit is driven; and a discharging unit discharging a charge stored in the capacitor during a pre-set discharge time when the LED unit is initially driven.
摘要翻译：提供了一种发光二极管（LED）驱动装置，其允许通过在一定时间段内放电存储在电容器中的电荷来提高LED驱动速率及其方法。 LED驱动装置包括：驱动单元，检测流过具有至少一个LED的LED单元的电流作为电压，根据检测到的电压和参考值之间的比较结果来控制流过LED单元的电流具有预设电压电平的电压，并且当LED单元被驱动时具有使LED单元的操作稳定的电容器; 以及放电单元，当LED单元被初始驱动时，在预设的放电时间期间放电存储在电容器中的电荷。

3. 发明申请

US20120319605A1 ILLUMINATION DRIVING APPARATUS 有权
标题翻译：照明驱动装置
公开(公告)号：US20120319605A1
公开(公告)日：2012-12-20
申请号：US13290738
申请日：2011-11-07
申请人： Joong Ho CHOI , Yeun Joong Lee , Deuk Hee Park , Sang Huyn Cha , Chang Seok Lee
发明人： Joong Ho CHOI , Yeun Joong Lee , Deuk Hee Park , Sang Huyn Cha , Chang Seok Lee
IPC分类号： H05B37/00
CPC分类号： H05B33/0815 , H05B33/0845 , H05B33/0851
摘要： A fixture-compatible, dimmable illumination driving apparatus including: a rectifying unit rectifying a phase-controlled waveform of an alternating current (AC) power; a comparing unit comparing an output waveform of the rectifying unit with a first voltage according to a preset reference clock; a reference voltage generating unit generating a reference voltage corresponding to the number of high signals higher than the first voltage among outputs of the comparing unit during one cycle of the output waveform; and a pulse width modulation (PWM) signal generating unit generating a PWM signal from the reference voltage and a feedback voltage.
摘要翻译：一种灯具兼容的可调光照明驱动装置，包括：整流单元，对交流（AC）功率的相位控制波形进行整流; 比较单元，根据预设的参考时钟将整流单元的输出波形与第一电压进行比较; 参考电压产生单元，在所述输出波形的一个周期期间，生成与所述比较单元的输出之间高于所述第一电压的高信号的数量相对应的参考电压; 以及脉冲宽度调制（PWM）信号生成单元，从所述基准电压和反馈电压生成PWM信号。

4. 发明申请

US20120086515A1 RELAXATION OSCILLATOR 失效
标题翻译：放松振荡器
公开(公告)号：US20120086515A1
公开(公告)日：2012-04-12
申请号：US13005054
申请日：2011-01-12
申请人： Jeong Mo YANG , Changsik YOO , Young-Jin MOON , Yong-Seong ROH , Joong Ho CHOI , Jae Shin LEE , Jung Chul GONG , Yu Jin JANG
发明人： Jeong Mo YANG , Changsik YOO , Young-Jin MOON , Yong-Seong ROH , Joong Ho CHOI , Jae Shin LEE , Jung Chul GONG , Yu Jin JANG
IPC分类号： H03K3/353
CPC分类号： H03K3/354 , H03K3/0231 , H03K3/03 , H03K5/1534
摘要： There is provided relaxation oscillator. The relaxation oscillator includes: a ramp wave generator generating ramp waves by a complementary operation between a first capacitor module charged and discharged according to a first switching signal and a second capacitor module charged and discharged according to a second switching signal; a negative feedback circuit unit generating a compensation voltage for compensating errors with reference voltage by being fedback with the ramp waves; and a switching signal generator generating the first switching signal controlling the charging and discharging of the first capacitor module and the second switching signal controlling the charging and discharging of the second capacitor module from the compensation voltage and the ramp waves. As a result, the present invention can generate ramp waves having a stable frequency while preventing a frequency from being changed due to a delay or an offset of the comparator.
摘要翻译：提供放松振荡器。张弛振荡器包括：斜波发生器，通过根据第一开关信号充电和放电的第一电容器模块与根据第二开关信号充放电的第二电容器模块之间的互补操作产生斜波; 负反馈电路单元，通过与斜波反馈产生用于通过参考电压补偿误差的补偿电压; 以及切换信号发生器，其产生控制第一电容器模块的充电和放电的第一开关信号和控制第二电容器模块从补偿电压和斜波的充电和放电的第二开关信号。结果，本发明可以产生具有稳定频率的斜坡波，同时防止频率由于比较器的延迟或偏移而改变。

5. 发明申请

US20120087160A1 POWER FACTOR CORRECTION CIRCUIT 有权
标题翻译：功率因数校正电路
公开(公告)号：US20120087160A1
公开(公告)日：2012-04-12
申请号：US13162793
申请日：2011-06-17
申请人： Jeong Mo YANG , Chang Sik YOO , Yung Jin MOON , Yong Seong ROH , Joong Ho CHOI , Jae Shin LEE , Jung Chul GONG , Yu Jin JANG
发明人： Jeong Mo YANG , Chang Sik YOO , Yung Jin MOON , Yong Seong ROH , Joong Ho CHOI , Jae Shin LEE , Jung Chul GONG , Yu Jin JANG
IPC分类号： H02M1/12
CPC分类号： H02M1/4225 , Y02B70/126 , Y02P80/112
摘要： There is provided a power factor correction circuit capable of correcting a power factor of a power converting module through increasing an input current by switching a main switching element of a power converting module on the basis of a first reference wave having a slope based on a first signal and an error voltage, in particular, by limiting a switching frequency on the basis of a first reference wave having a slope based on a second signal lower than a first signal and an error voltage when the switching frequency of the main switching element increases because an input voltage of the power converting module is low.
摘要翻译：提供了一种功率因数校正电路，其能够通过增加输入电流来校正功率转换模块的功率因数，所述功率因数校正电路通过基于第一参考波来切换功率转换模块的主开关元件，所述第一基准波具有基于第一信号和误差电压，特别是通过基于具有基于低于第一信号的第二信号的斜率的第一参考波和当主开关元件的开关频率增加时的误差电压来限制开关频率，因为电力转换模块的输入电压低。

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