公开(公告)号：US20140062435A1

公开(公告)日：2014-03-06

申请号：US13597653

申请日：2012-08-29

申请人： Chien-Ping Lu ,  Nien-Hui Kung ,  Li-Wei Lee ,  Chia-Hsiang Lin ,  Chen-Hsiang Hsiao ,  Ko-Ching Su

发明人： Chien-Ping Lu ,  Nien-Hui Kung ,  Li-Wei Lee ,  Chia-Hsiang Lin ,  Chen-Hsiang Hsiao ,  Ko-Ching Su

IPC分类号： G05F1/10

CPC分类号： H02J7/0072

摘要： The present invention discloses a charge control circuit for supplying power from an external power source to a first common node and charging a second common node from the first common node. A regulator circuit is coupled between the external power source and the first common node, and a transistor is coupled between the first common node and the second common node. The present invention detects an operation parameter of the transistor and controls an internal voltage source to generate a non-predetermined voltage difference accordingly. When the sum of the voltage at the second common node and the non-predetermined voltage is equal to or higher than the reference voltage, the voltage at the first common node is regulated to a level higher than the voltage at the second common node, and the transistor is in an optimum conductive state.

摘要翻译： 本发明公开了一种用于从外部电源向第一公共节点提供电力并从第一公共节点对第二公共节点充电的充电控制电路。 调节器电路耦合在外部电源和第一公共节点之间，并且晶体管耦合在第一公共节点和第二公共节点之间。 本发明检测晶体管的操作参数，并且控制内部电压源以相应地产生非预定的电压差。 当第二公共节点和非预定电压之间的电压之和等于或高于参考电压时，第一公共节点处的电压被调节到高于第二公共节点处的电压的电平，以及 晶体管处于最佳导通状态。

公开(公告)号：US08502511B1

公开(公告)日：2013-08-06

申请号：US13733569

申请日：2013-01-03

申请人： Nien-Hui Kung

发明人： Nien-Hui Kung

IPC分类号： G05F1/613 ,  G05F1/40 ,  G05F5/00

CPC分类号： H02M3/1588 ,  H03K2217/0081 ,  Y02B70/1466

摘要： The present invention discloses a buck switching regulator including a power stage, a driver circuit and a bootstrap capacitor. The power stage includes an upper-gate switch, a first lower-gate switch and a second lower-gate switch. The first upper-gate switch is electrically connected between an input terminal and a switching node. The first lower-gate switch is connected in parallel with the second lower-gate switch, both of which are electrically connected between the switching node and a first node. The driver circuit controls the operation of the upper-gate switch and the first lower-gate switch. The bootstrap capacitor is electrically connected between a boot node and the switching node, wherein the boot node is electrically connected to a supply voltage. When a voltage across the bootstrap capacitor is smaller than a reference voltage, the second lower-gate switch is turned on to charge the bootstrap capacitor from the supply voltage.

摘要翻译： 本发明公开了一种降压开关调节器，包括功率级，驱动电路和自举电容。 功率级包括上栅极开关，第一下栅极开关和第二下栅极开关。 第一上栅极开关电连接在输入端子和开关节点之间。 第一下栅极开关与第二下栅极开关并联连接，第二下栅极开关电连接在开关节点和第一节点之间。 驱动电路控制上栅极开关和第一下栅极开关的工作。 自举电容器电连接在引导节点和交换节点之间，其中引导节点电连接到电源电压。 当自举电容器两端的电压小于参考电压时，第二个下栅极开关导通，从自身电源电压向自举电容充电。

公开(公告)号：US20130015822A1

公开(公告)日：2013-01-17

申请号：US13181203

申请日：2011-07-12

申请人： Nien-Hui Kung

发明人： Nien-Hui Kung

IPC分类号： H02J7/04 ,  H02J7/06

CPC分类号： H02J7/045 ,  H02J7/06 ,  H02J7/34

摘要： The present invention discloses a multi-purpose power management apparatus, a power path control circuit, and a control method therefor. The multi-purpose power management apparatus controls power conversion between an input power and an output power and charging operation from the output power to a battery. The multi-purpose power management apparatus includes: a switch circuit including at least one power transistor; a switch control circuit generating a PWM signal to control the power transistor, for controlling the power conversion between the input power and the output power; a charging management circuit for controlling the charging operation from the output power to the battery; and a path selection circuit for determining whether the charging operation is controlled by the charging management circuit.

摘要翻译： 本发明公开了一种多用途电力管理装置，电力路径控制电路及其控制方法。 多用途电力管理装置控制输入电力和输出电力之间的电力转换以及从输出电力到电池的充电操作。 多用途电力管理装置包括：开关电路，包括至少一个功率晶体管; 产生PWM信号以控制功率晶体管的开关控制电路，用于控制输入功率和输出功率之间的功率转换; 充电管理电路，用于控制从所述输出电力到所述电池的充电操作; 以及路径选择电路，用于确定充电操作是否由充电管理电路控制。

公开(公告)号：US20120319662A1

公开(公告)日：2012-12-20

申请号：US13162519

申请日：2011-06-16

申请人： Nien-Hui Kung

发明人： Nien-Hui Kung

IPC分类号： G05F1/10

CPC分类号： H02M3/1588 ,  H02M2001/0032 ,  H02M2001/0054 ,  Y02B70/1466 ,  Y02B70/1491 ,  Y02B70/16

摘要： The present invention discloses a switching regulator, a control circuit and a control method therefor. The switching regulator comprises an upper gate switch, a lower gate switch, and an inductor connected to a switching node. When a current passing through the upper gate switch or the inductor is lower than a threshold, the lower gate switch is kept OFF until a next cycle, and during the cycle wherein the lower gate switch is OFF, the upper gate switch is turned ON for a period of time.

摘要翻译： 本发明公开了一种开关调节器，控制电路及其控制方法。 开关调节器包括上栅极开关，下栅极开关和连接到开关节点的电感器。 当通过上部栅极开关或电感器的电流低于阈值时，下部栅极开关保持截止直到下一个周期，并且在下部栅极开关截止的周期中，上部栅极开关导通， 一段时间。

公开(公告)号：US08269461B2

公开(公告)日：2012-09-18

申请号：US12831494

申请日：2010-07-07

申请人： Nien-Hui Kung ,  Kwan-Jen Chu

发明人： Nien-Hui Kung ,  Kwan-Jen Chu

IPC分类号： H01M10/44 ,  H01M10/46

CPC分类号： H02M3/158 ,  H02J7/0052 ,  H02J2007/0059 ,  H02M2001/0045 ,  Y02T90/127

摘要： A hybrid battery charger includes a control circuit and a power stage. The control circuit includes an error amplifier to generate a first error signal and a second error signal according to an output voltage and an output current of the hybrid battery charger, a linear controller to generate a first control signal according to the first error signal, a PWM controller to generate a second control signal and a third control signal according to the second error signal, and according to a mode signal, a multiplexer to select the first control signal for the power stage to operate the hybrid battery charger in a linear mode, or the second and third control signals for the power stage to operate the hybrid battery charger in a switching mode.

摘要翻译： 混合电池充电器包括控制电路和功率级。 控制电路包括误差放大器，根据混合电池充电器的输出电压和输出电流产生第一误差信号和第二误差信号;线性控制器，用于根据第一误差信号产生第一控制信号; PWM控制器，根据第二误差信号产生第二控制信号和第三控制信号，并且根据模式信号，多路复用器选择用于功率级的第一控制信号以以线性模式操作混合电池充电器， 或用于功率级的第二和第三控制信号以开关模式操作混合电池充电器。

公开(公告)号：US08203234B2

公开(公告)日：2012-06-19

申请号：US12720024

申请日：2010-03-09

申请人： Li-Wei Lee ,  Nien-Hui Kung ,  Kwan-Jen Chu ,  Chun-Tsung Chen

发明人： Li-Wei Lee ,  Nien-Hui Kung ,  Kwan-Jen Chu ,  Chun-Tsung Chen

IPC分类号： H02J1/10 ,  H02J3/38

CPC分类号： H02J7/0031 ,  Y10T307/544

摘要： A power safety system includes a first MOS, a second MOS, a switch and a body controller. The first MOS is connected between a power input and a power output. The second MOSFET is connected between the power output and a charging output. The switch has an end connected to the body of the first MOS, and the opposite end switched between the source and the drain of the first MOS. A body controller controls the switch according to the voltage at the power input and the voltage at the power output, to connect the body of the first MOS to the source or the drain of the first MOS. By switching the switch, the first MOS will have a parasitic diode effective to prevent a reverse current from the power output to the power input.

摘要翻译： 电力安全系统包括第一MOS，第二MOS，开关和主体控制器。 第一个MOS连接在电源输入和电源输出之间。 第二个MOSFET连接在电源输出和充电输出之间。 开关的端部连接到第一MOS的主体，并且相对端在第一MOS的源极和漏极之间切换。 主体控制器根据电源输入端的电压和电源输出端的电压来控制开关，将第一MOS的主体连接到第一个MOS的源极或漏极。 通过切换开关，第一个MOS将有一个有效的寄生二极管，以防止从功率输出到电源输入的反向电流。

公开(公告)号：US08085014B2

公开(公告)日：2011-12-27

申请号：US12378494

申请日：2009-02-17

申请人： Nien-Hui Kung ,  Kwan-Jen Chu ,  Chun-Tsung Chen ,  Tzu-Huan Chiu

发明人： Nien-Hui Kung ,  Kwan-Jen Chu ,  Chun-Tsung Chen ,  Tzu-Huan Chiu

IPC分类号： G05F1/01

CPC分类号： H02M3/1584 ,  H03K17/063 ,  H03K17/122 ,  H03K17/302

摘要： The present invention discloses a dual power switch and a voltage regulator using the dual power switch. The dual power switch comprises a PMOS power switch and an NMOS power switch connected in parallel and operating according to corresponding predetermined conditions, respectively.

摘要翻译： 本发明公开了一种双电源开关和使用双电源开关的电压调节器。 双电源开关包括并联连接的PMOS电源开关和NMOS电源开关，并分别根据相应的预定条件操作。

公开(公告)号：US08049462B2

公开(公告)日：2011-11-01

申请号：US12284235

申请日：2008-09-18

申请人： Nien-Hui Kung ,  Kwan-Jen Chu ,  Jing-Meng Liu

发明人： Nien-Hui Kung ,  Kwan-Jen Chu ,  Jing-Meng Liu

IPC分类号： H02J7/02

CPC分类号： H02J7/0031 ,  H02J2007/0039 ,  H02J2007/0062

摘要： The present invention discloses a universal serial bus (USB) charging circuit, comprising: a charging path for charging a battery from a USB host; a charging switch located on the charging path; a current sensing circuit for sensing current information on the charging path; a maximum available current detection circuit for detecting the maximum available current from the USB host; and a loop controller circuit for controlling the charging switch so that the charging current on the charging path is substantially equal to the maximum available current detected by the maximum available current detection circuit, wherein the maximum available current detection circuit detects the maximum available current during circuit initialization and stores it.

摘要翻译： 本发明公开了一种通用串行总线（USB）充电电路，包括：用于从USB主机对电池充电的充电路径; 位于充电路径上的充电开关; 用于感测充电路径上的当前信息的电流感测电路; 用于检测来自USB主机的最大可用电流的最大可用电流检测电路; 以及环路控制器电路，用于控制充电开关，使得充电路径上的充电电流基本上等于由最大可用电流检测电路检测的最大可用电流，其中最大可用电流检测电路检测电路中的最大可用电流 初始化并存储它。

公开(公告)号：US07940596B2

公开(公告)日：2011-05-10

申请号：US12588946

申请日：2009-11-03

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

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

IPC分类号： G11C5/14

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

摘要： A switching regulator includes a low-side switch having a body diode. During the low-side switch is on, a zero-current sense circuit monitors the inductor current of the switching regulator and triggers a signal to turn off the low-side switch when the inductor current falls down to a zero-current threshold, to prevent reverse inductor current from the output terminal of the switching regulator. A body-diode turn-on time controller monitors the turn-on time of the body diode and adjusts the zero-current threshold according thereto, and the turn-on time of the body diode can be reduced to an optimal interval subsequently. The self-adjustable zero-current threshold is adaptive according to the application conditions, such as the inductor size, input voltage and output voltage of the switching regulator.

摘要翻译： 开关调节器包括具有体二极管的低侧开关。 在低侧开关导通时，零电流检测电路监测开关稳压器的电感电流，并在电感电流下降到零电流阈值时触发信号关闭低边开关，以防止 反向电感电流从开关稳压器的输出端子。 体二极管导通时间控制器监视体二极管的接通时间并根据其调整零电流阈值，并且体二极管的接通时间可以随后降低到最佳间隔。 根据应用条件，自适应零电流阈值是自适应的，如开关稳压器的电感尺寸，输入电压和输出电压。

公开(公告)号：US20090315527A1

公开(公告)日：2009-12-24

申请号：US12457665

申请日：2009-06-18

申请人： Nien-Hui Kung ,  Kwan-Jen Chu

发明人： Nien-Hui Kung ,  Kwan-Jen Chu

IPC分类号： G05F1/10

CPC分类号： H02M3/158 ,  H02M2001/0009

摘要： For output current detection of a voltage regulator, the currents in a high-side transistor and a low-side transistor of the voltage regulator are sensed and summarized to a summed current to flow through a setting resistor. The voltage variation on the setting resistor is monitored to provide a feedback signal for feedback control in the voltage regulator. This detection scheme removes the current sensing resistor from the charging current path of the voltage regulator to prevent efficiency loss on it, and is much less sensitive to noise interference because greater voltage variation is available by using a greater setting resistor.

摘要翻译： 对于电压调节器的输出电流检测，电压调节器的高侧晶体管和低侧晶体管中的电流被感测并汇总为相加电流以流过设定电阻。 监控设定电阻上的电压变化，为电压调节器中的反馈控制提供反馈信号。 该检测方案从电压调节器的充电电流路径中去除电流检测电阻，以防止其上的效率损失，并且对噪声干扰的敏感性要小得多，因为通过使用更大的设置电阻可以获得更大的电压变化。