公开(公告)号：US20100110593A1

公开(公告)日：2010-05-06

申请号：US12610519

申请日：2009-11-02

申请人： Dong-Hee KIM ,  Jung-Won Kim ,  Dae-Jung Kim

发明人： Dong-Hee KIM ,  Jung-Won Kim ,  Dae-Jung Kim

IPC分类号： H02H7/00

CPC分类号： H02M1/32 ,  H02M1/4225 ,  Y02B70/126

摘要： The present invention relates to a set protection circuit for when a diode short-circuit defect occurs in a power factor correction circuit of a critical conduction mode. In a conventional power factor correction circuit, an excessive amount of current flows to a switch if a diode is short-circuited so that the switch is damaged. In order to prevent damage to the switch, the present invention provides a method for stopping turn-on of the switch when a switch current is excessive.

摘要翻译： 本发明涉及一种用于在临界导通模式的功率因数校正电路中发生二极管短路缺陷的组合保护电路。 在传统的功率因数校正电路中，如果二极管发生短路，则过大的电流流向开关，从而损坏开关。 为了防止对开关的损坏，本发明提供一种当开关电流过大时停止开关接通的方法。

公开(公告)号：US07397567B2

公开(公告)日：2008-07-08

申请号：US11609195

申请日：2006-12-11

申请人： Franz X. Kaertner ,  Jung-Won Kim

发明人： Franz X. Kaertner ,  Jung-Won Kim

IPC分类号： G01B9/02

CPC分类号： G01J9/02 ,  G01J9/04 ,  G04G7/00 ,  H01S3/1304 ,  H01S3/2383

摘要： A balanced optical-RF phase detector for the extraction of low-jitter radiofrequency (RF) signals from optical pulse trains is demonstrated. The extraction of the low-jitter radiofrequency signals is based on the precise phase detection by use of a differentially biased Sagnac-loop interferometer and synchronous detection. The phase-error signal from this balanced optical-RF phase detector, which is robust against drifts and photodetector nonlinearities, is used to regenerate low-jitter radiofrequency signals from optical pulse trains. Alternatively, the phase-error signal is used to generate a low-jitter optical pulse train, synchronized with a master radiofrequency signal or to synchronize multiple modelocked lasers with each other.

摘要翻译： 证明了用于从光脉冲串提取低抖动射频（RF）信号的平衡光 - 射相位检测器。 低抖动射频信号的提取基于通过使用差分偏置的Sagnac环路干涉仪和同步检测的精确相位检测。 来自该平衡光 - RF相位检测器的相位误差信号对于漂移和光电检测器非线性都是鲁棒的，用于再生来自光脉冲串的低抖动射频信号。 或者，相位误差信号用于产生与主射频信号同步的低抖动光脉冲串，或者使多个锁模激光器彼此同步。

公开(公告)号：US20070297415A1

公开(公告)日：2007-12-27

申请号：US11769317

申请日：2007-06-27

申请人： Jae-Ho LEE ,  Jeong-Ho Lee ,  Jung-Won Kim

发明人： Jae-Ho LEE ,  Jeong-Ho Lee ,  Jung-Won Kim

IPC分类号： H04L12/56

CPC分类号： H04L47/521 ,  H04L47/14 ,  H04L47/50 ,  H04L47/56 ,  H04W72/1221 ,  H04W72/1242

摘要： An apparatus and method of scheduling data packets in a communication system are provided, in which the number of first-type data packets to be transmitted with priority is determined according to a predetermined criterion from among total first-type data packets, and the determined number of first-type data packets and second-type data packets are scheduled so as to transmit the determined number of first-type data packets and then transmit the second-type data packets.

摘要翻译： 提供了一种在通信系统中调度数据分组的装置和方法，其中根据来自总第一类型数据分组的预定标准确定要优先发送的第一类型数据分组的数量，并且确定的数目 调度第一类型数据分组和第二类型数据分组，以便发送确定数量的第一类型数据分组，然后发送第二类型数据分组。

公开(公告)号：US20070080509A1

公开(公告)日：2007-04-12

申请号：US11302079

申请日：2005-12-12

申请人： Jung-Won Kim

发明人： Jung-Won Kim

IPC分类号： B60G7/00 ,  B60G7/02 ,  B60G17/016

CPC分类号： B60G7/006 ,  B60G17/0162 ,  B60G2200/14 ,  B60G2200/144 ,  B60G2200/462 ,  B60G2204/421 ,  B60G2204/62 ,  B60G2400/44

摘要： A control lever structure of an active geometry control suspension. The control lever structure has firm supporting force to withstand loads acting in perpendicular and axial directions of a rotating shaft of a control lever, thus allowing the control lever to be reliably mounted and held to a vehicle body.

摘要翻译： 主动几何控制悬架的控制杆结构。 控制杆结构具有坚固的支撑力，以承受作用在控制杆的旋转轴的垂直和轴向方向上的负载，从而允许控制杆可靠地安装并保持在车身上。

公开(公告)号：US20060209481A1

公开(公告)日：2006-09-21

申请号：US11359099

申请日：2006-02-22

申请人： Jung-Won Kim ,  Joo-Han Yoon

发明人： Jung-Won Kim ,  Joo-Han Yoon

IPC分类号： H02H3/24

CPC分类号： H02M1/32 ,  H02M3/33523

摘要： A switching mode power supply and a corresponding method of protection operation is presented. A switching controller of the switching mode power supply receives current sensing information corresponding to the current flowing through a main switch and feedback information corresponding to an output voltage through a single terminal, and performs a protection operation when the voltage at the terminal is maintained to be lower than a reference voltage for more than a predetermined time frame. The power supply requires a low number of terminals, while preserving the protection operation function.

公开(公告)号：US20050280895A1

公开(公告)日：2005-12-22

申请号：US11125457

申请日：2005-05-10

申请人： Franz Kaertner ,  Jung-Won Kim

发明人： Franz Kaertner ,  Jung-Won Kim

IPC分类号： G02B27/14 ,  G02B27/28 ,  H01S3/00

CPC分类号： G02B27/144 ,  G02B27/142 ,  G02B27/283

摘要： A beam splitter includes a substrate. A thin film layer stack is formed on the substrate to achieve the same group delay dispersion (GDD) for both reflection and transmission from any input port and output port of said beam splitter.

摘要翻译： 分束器包括基板。 在衬底上形成薄膜层堆叠，以实现从所述分束器的任何输入端口和输出端口的反射和透射的相同的组延迟色散（GDD）。

公开(公告)号：US20050078493A1

公开(公告)日：2005-04-14

申请号：US10920816

申请日：2004-08-18

申请人： Jung-Won Kim ,  Dong-Young Huh

发明人： Jung-Won Kim ,  Dong-Young Huh

IPC分类号： H02M3/28 ,  H02M3/335

CPC分类号： H02M3/33507 ,  H02M2001/0048 ,  Y02B70/1491

摘要： A switching power supply includes a switch, a bias-sensor to sense the switch-voltage, and a zero-crossing detector (ZCD) to sense time instances when the bias-sensor voltage crosses zero. ZCD generates a ZCD-signal, which transitions between a first and a second level at the sensed crossing instances, with a delay. ZCD-signal is coupled to a blanking circuit, generating a blank-signal and a pulse-signal, controlling the switch. The on-time of the switch can be modified by the input voltage and load. The blank-signal between on-times is adjusted to compensate for this modification, keeping the switching frequency below a predetermined limit and reducing the switching frequency. The switching power supply further includes a pulse width modulation (PWM) signal generator, coupled to the blanking circuit and to the switch. PWM signal generator turns on the switch controlled by the pulse-signal of the blanking circuit. Blanking circuit is controlled by either the on-time or a control voltage and input voltage.

摘要翻译： 开关电源包括开关，感测开关电压的偏置传感器，以及当偏置传感器电压跨越零时检测时间实例的过零检测器（ZCD）。 ZCD产生一个ZCD信号，该ZCD信号在感测到的交叉实例处在第一和第二电平之间以延迟转换。 ZCD信号耦合到消隐电路，产生空白信号和脉冲信号，控制开关。 可以通过输入电压和负载来修改开关的导通时间。 调整接通时间之间的空白信号以补偿该修改，保持开关频率低于预定限制并降低开关频率。 开关电源还包括脉冲宽度调制（PWM）信号发生器，耦合到消隐电路和开关。 PWM信号发生器接通由消隐电路的脉冲信号控制的开关。 消隐电路由导通时间或控制电压和输入电压控制。

公开(公告)号：US06845019B2

公开(公告)日：2005-01-18

申请号：US10346807

申请日：2003-01-17

申请人： Jung-Won Kim ,  Dong-Young Huh

发明人： Jung-Won Kim ,  Dong-Young Huh

IPC分类号： H01F38/42 ,  H02M3/335

CPC分类号： H02M3/33507

摘要： A flyback converter detects an output voltage at the primary coil without using a photo coupler and provides an essentially constant output voltage independent of the load size, thereby minimizing the number of additional coils used in the transformer circuit to realize simple construction and providing accurate power control. In one embodiment, the flyback converter includes: a transformer for changing an input voltage to a predetermined level according to a winding ratio; an output unit for rectifying the voltage signal output from the transformer into a DC signal to drive a load; a switch coupled to the primary coil of the transformer for controlling the on/off state of a power at the primary coil according to a switching control signal; a feedback unit generating a feedback signal and detecting a current of the switch to correct the feedback signal; and a switching controller operating according to the feedback signal.

摘要翻译： 反激转换器在不使用光电耦合器的情况下检测初级线圈处的输出电压，并提供与负载尺寸无关的基本恒定的输出电压，从而最小化变压器电路中使用的附加线圈数量，以实现简单的结构并提供精确的功率控制 。 在一个实施例中，反激转换器包括：变压器，用于根据绕组比将输入电压改变到预定电平; 用于将从变压器输出的电压信号整流为DC信号以驱动负载的输出单元; 耦合到所述变压器的初级线圈的开关，用于根据开关控制信号控制所述初级线圈处的功率的导通/截止状态; 反馈单元，产生反馈信号并检测开关的电流以校正反馈信号; 以及根据反馈信号操作的开关控制器。