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91 条记录 (耗时 0.014 秒)

    Quick response switching regulator and control method thereof
    31.
    发明申请
    Quick response switching regulator and control method thereof 失效
    快速响应开关调节器及其控制方法

    公开(公告)号：US20080174286A1

    公开(公告)日：2008-07-24

    申请号：US11892987

    申请日：2007-08-29

    申请人： Kwan-Jen Chu ,  Tzu-Huan Chiu ,  Nien-Hui Kung ,  Chien-Ping Lu

    发明人： Kwan-Jen Chu ,  Tzu-Huan Chiu ,  Nien-Hui Kung ,  Chien-Ping Lu

    IPC分类号： G05F1/00

    CPC分类号： H02M3/1588 ,  H02M2001/0009 ,  Y02B70/1466

    摘要： A quick response switching regulator comprises a power stage having a pair of high-side switch and low-side switch and an inductor connected together by a switching node, a feedback circuit for producing a feedback signal, and a control circuit producing control signals with reference to the feedback signal to control the pair of high-side switch and low-side switch. The feedback circuit is connected to the switching node to shorten the feedback path and speed up the response. The control circuit further monitors the current flowing through the inductor to keep the low-side switch off before the peak of the inductor current becomes higher than a value.

    摘要翻译： 快速响应开关调节器包括具有一对高侧开关和低侧开关的功率级以及由开关节点连接在一起的电感器，用于产生反馈信号的反馈电路以及产生具有参考的控制信号的控制电路 到反馈信号控制一对高侧开关和低侧开关。 反馈电路连接到交换节点以缩短反馈路径并加快响应。 控制电路进一步监测流经电感器的电流，以在电感电流峰值变得高于一个值之前保持低侧开关断开。

    Switching regulator and control circuit and method therefor
    32.
    发明申请
    Switching regulator and control circuit and method therefor 失效
    开关稳压器及其控制电路及其方法

    公开(公告)号：US20080074092A1

    公开(公告)日：2008-03-27

    申请号：US11893956

    申请日：2007-08-17

    申请人： Nien-Hui Kung ,  Kwan-Jen Chu

    发明人： Nien-Hui Kung ,  Kwan-Jen Chu

    IPC分类号： G05F1/00

    CPC分类号： H02M3/158 ,  H02M1/44 ,  H02M2001/0045

    摘要： The present invention discloses a switching regulator, and a control circuit and a control method therefor. The switching regulator comprises two transistors, and the two transistors are never simultaneously OFF.

    摘要翻译： 本发明公开了一种开关调节器及其控制电路及其控制方法。 开关调节器包括两个晶体管，并且两个晶体管从不同时关断。

    Control circuit and method for a fly-back voltage converter
    33.
    发明申请
    Control circuit and method for a fly-back voltage converter 有权

    公开(公告)号：US20060250827A1

    公开(公告)日：2006-11-09

    申请号：US11415223

    申请日：2006-05-02

    申请人： Kwan-Jen Chu ,  Chung-Lung Pai ,  Yuan-Huang Cheng ,  Jing-Meng Liu

    发明人： Kwan-Jen Chu ,  Chung-Lung Pai ,  Yuan-Huang Cheng ,  Jing-Meng Liu

    IPC分类号： H02M3/335

    CPC分类号： H02M3/33507 ,  H02M2001/0009 ,  H02M2001/0038

    摘要： In a fly-back voltage converter that includes a transformer to transform a primary current to a secondary current and a switch serially coupled to the primary winding to switch the primary current in response to a control signal, a detection signal is produced by comparing the secondary current with two threshold values after the primary current is switched off to trigger the next on-time cycle of the switch. Once the secondary current is detected to be greater than a first threshold value, it is determined that the secondary current has been switched on, and until the secondary current is detected to be lower than a second threshold value, it is determined that the secondary current is to be switched off. The hysteresis range of the threshold values prevents error detection of the secondary current.

    Elimination of address-sensitivity by synchronous reference for sense amplifier
    35.
    发明授权
    Elimination of address-sensitivity by synchronous reference for sense amplifier 有权
    通过读出放大器的同步参考消除地址灵敏度

    公开(公告)号：US06639847B1

    公开(公告)日：2003-10-28

    申请号：US10180270

    申请日：2002-06-26

    申请人： Kwan-Jen Chu

    发明人： Kwan-Jen Chu

    IPC分类号： G11C1604

    CPC分类号： G11C7/062 ,  G11C7/14 ,  G11C16/28

    摘要： A method and apparatus for stabilizing a sense amplifier utilized in a memory array of a semiconductor integrated circuit. A memory cell of the memory array may be selected, wherein the selected memory cell is associated with a sense amplifier. A cell current associated with the selected memory cell and a reference current associated with a reference memory cell can be generated. Thereafter, the reference current may be synchronized with a plurality of address inputs to eliminate a source line resistance associated with the selected memory cell, thereby resulting in a stabilization the sense amplifier by the elimination of associated address sensitivity.

    摘要翻译： 一种用于稳定在半导体集成电路的存储器阵列中使用的读出放大器的方法和装置。 可以选择存储器阵列的存储单元，其中所选择的存储单元与读出放大器相关联。 可以产生与所选择的存储器单元相关联的单元电流和与参考存储器单元相关联的参考电流。 此后，参考电流可以与多个地址输入同步以消除与所选择的存储器单元相关联的源极线电阻，从而通过消除相关联的地址灵敏度来使感测放大器稳定。

    Charger circuit
    36.
    发明授权
    Charger circuit 有权
    充电器电路

    公开(公告)号：US08890485B2

    公开(公告)日：2014-11-18

    申请号：US12574035

    申请日：2009-10-06

    申请人： Nien-Hui Kung ,  Kwan-Jen Chu

    发明人： Nien-Hui Kung ,  Kwan-Jen Chu

    IPC分类号： H02J7/04 ,  H02J7/00

    CPC分类号： H02J7/0072

    摘要： A charger circuit comprising: a charging path coupled between an input voltage and a battery; a power switch on the charging path; a switch control circuit controlling the power switch; a timer counting a charging period; and a low current control circuit issuing a signal to the switch control circuit to control the power switch such that a charging current is maintained to be a predetermined low current when the timer counts to a predetermined maximum charging period.

    摘要翻译： 一种充电器电路，包括：耦合在输入电压和电池之间的充电路径; 充电路径上的电源开关; 控制电源开关的开关控制电路; 定时器计数充电周期; 以及低电流控制电路，向开关控制电路发出信号以控制电源开关，使得当定时器计数到预定的最大充电时段时，将充电电流保持为预定的低电流。

    Charging circuit with application system thereof
    38.
    发明授权
    Charging circuit with application system thereof 有权
    充电电路及其应用系统

    公开(公告)号：US08378640B2

    公开(公告)日：2013-02-19

    申请号：US12631988

    申请日：2009-12-07

    申请人： Li-Wei Lee ,  Nien-Hui Kung ,  Kwan-Jen Chu ,  Hsuan-Kai Wang

    发明人： Li-Wei Lee ,  Nien-Hui Kung ,  Kwan-Jen Chu ,  Hsuan-Kai Wang

    IPC分类号： H02J7/00 ,  H02J7/04 ,  H02J7/24

    CPC分类号： H02J7/0073

    摘要： A charging circuit with an application system thereof provides an error amplifier to control a transistor switch for controlling the charging power source to charges the battery. When the voltage difference between the power source and load terminals of the transistor switch drops along with the transistor switch being turned on, the output voltage of the error amplifier changes as well to increase the turning-on resistance of the transistor switch such that the voltage difference between the power source and load terminals is capable of maintaining at a value above a certain reference level for avoiding the unstable state resulting from the charging circuit being turned on and off frequently.

    摘要翻译： 具有其应用系统的充电电路提供误差放大器来控制用于控制充电电源以对电池充电的晶体管开关。 当晶体管开关的电源和负载端子之间的电压差随着晶体管开关导通而下降时，误差放大器的输出电压也改变，以增加晶体管开关的导通电阻，使得电压 电源和负载端子之间的差异能够保持在高于特定参考电平的值，以避免由充电电路频繁接通和断开引起的不稳定状态。

    LIGHT EMITTING DIODE DRIVING APPARATUS
    40.
    发明申请
    LIGHT EMITTING DIODE DRIVING APPARATUS 有权
    发光二极管驱动装置

    公开(公告)号：US20120139443A1

    公开(公告)日：2012-06-07

    申请号：US13034657

    申请日：2011-02-24

    申请人： Kwan-Jen Chu

    发明人： Kwan-Jen Chu

    IPC分类号： H05B37/02

    CPC分类号： H05B33/0827

    摘要： A light emitting diode (LED) driving apparatus is provided, and which includes a first operational amplifier (OPA) having a positive input terminal receiving a predetermined voltage related to a current flowing through an LED string; a first resistor having a first end coupled to a negative input terminal of the first OPA and a second end coupled to a ground; a power transistor having a gate coupled to an output of the first OPA, a drain coupled to a cathode of the LED string and a source coupled to the first end of the first resistor; an error amplifier having a first input terminal coupled to the gate of the power transistor, a second input terminal receiving a reference voltage and an output terminal outputting a control voltage; and a power conversion stage providing a DC voltage to an anode of the LED string according to the outputted control voltage.

    摘要翻译： 提供一种发光二极管（LED）驱动装置，其包括具有正输入端的第一运算放大器（OPA），该正输入端接收与流过LED串的电流相关的预定电压; 第一电阻器，其具有耦合到第一OPA的负输入端子的第一端和耦合到地的第二端; 功率晶体管，具有耦合到第一OPA的输出的栅极，耦合到LED串的阴极的漏极和耦合到第一电阻器的第一端的源极; 误差放大器，具有耦合到功率晶体管的栅极的第一输入端子，接收参考电压的第二输入端子和输出控制电压的输出端子; 以及电力转换级，根据输出的控制电压向LED串的阳极提供直流电压。