公开(公告)号：US20130181683A1

公开(公告)日：2013-07-18

申请号：US13351917

申请日：2012-01-17

申请人： Hsuan-Kai Wang ,  Nien-Hui Kung ,  Chieh-Wei Chen

发明人： Hsuan-Kai Wang ,  Nien-Hui Kung ,  Chieh-Wei Chen

IPC分类号： H02J7/00 ,  H03K3/011

CPC分类号： H02J7/047 ,  H03K3/011

摘要： The present invention discloses a battery charging circuit adjusting a charging voltage or a charging current according to a battery temperature, which includes: a power stage circuit including at least one power transistor switch and converting input power to charging power by operating the power transistor switch within a temperature range, wherein the charging power includes the charging voltage and the charging current; a reference signal generator obtaining signals representing the battery temperature and generating a reference signal accordingly; and a control circuit generating a switch signal according to the reference signal for operating the power transistor of the power stage circuit, wherein the charging voltage or the charging current is gradually increased as the battery temperature increases in a lower range within the temperature range or gradually decreased as the battery temperature increases in a higher range within the temperature range.

摘要翻译： 本发明公开了一种根据电池温度调节充电电压或充电电流的电池充电电路，其包括：功率级电路，其包括至少一个功率晶体管开关，并通过在其内部操作功率晶体管开关将输入功率转换为充电功率 温度范围，其中充电功率包括充电电压和充电电流; 参考信号发生器获得表示电池温度的信号并相应地产生参考信号; 以及控制电路，根据用于操作功率级电路的功率晶体管的参考信号产生开关信号，其中充电电压或充电电流随着电池温度在温度范围内逐渐升高或逐渐升高 随着电池温度在温度范围内的更高范围内增加而降低。

公开(公告)号：US08653795B2

公开(公告)日：2014-02-18

申请号：US13134036

申请日：2011-05-26

申请人： Hsuan-Kai Wang ,  Nien-Hui Kung ,  Wei-I Li

发明人： Hsuan-Kai Wang ,  Nien-Hui Kung ,  Wei-I Li

IPC分类号： H02J7/04 ,  H02J7/00

CPC分类号： H02J7/0052 ,  Y02B40/90 ,  Y02E70/40

摘要： The present invention discloses a charger circuit. The charger circuit comprises a control circuit and at least two charging paths. The control circuit determines to activate or inactivate each charging path according to a battery feedback signal representing the charging status. Accordingly, the battery is charged by input power in an optimal way so that the charging efficiency is improved and the overheating problem is solved.

摘要翻译： 本发明公开了一种充电器电路。 充电器电路包括控制电路和至少两个充电路径。 控制电路根据表示充电状态的电池反馈信号确定激活或者去激活每个充电路径。 因此，电池以最佳方式由输入电力充电，从而提高充电效率，解决过热问题。

公开(公告)号：US20120112705A1

公开(公告)日：2012-05-10

申请号：US13134036

申请日：2011-05-26

申请人： Hsuan-Kai Wang ,  Nien-Hui Kung ,  Wei-I Li

发明人： Hsuan-Kai Wang ,  Nien-Hui Kung ,  Wei-I Li

IPC分类号： H02J7/04

CPC分类号： H02J7/0052 ,  Y02B40/90 ,  Y02E70/40

摘要： The present invention discloses a charger circuit. The charger circuit comprises a control circuit and at least two charging paths. The control circuit determines to activate or inactivate each charging path according to a battery feedback signal representing the charging status. Accordingly, the battery is charged by input power in an optimal way so that the charging efficiency is improved and the overheating problem is solved.

摘要翻译： 本发明公开了一种充电器电路。 充电器电路包括控制电路和至少两个充电路径。 控制电路根据表示充电状态的电池反馈信号确定激活或者去激活每个充电路径。 因此，电池以最佳方式由输入电力充电，从而提高充电效率，解决过热问题。

公开(公告)号：US20130181522A1

公开(公告)日：2013-07-18

申请号：US13352020

申请日：2012-01-17

申请人： Hsuan-Kai Wang ,  Nien-Hui Kung

发明人： Hsuan-Kai Wang ,  Nien-Hui Kung

IPC分类号： H02J1/04 ,  H02J7/34

CPC分类号： H02J7/0022 ,  H02J2007/0062 ,  Y10T307/422

摘要： A power management control circuit controls a first power transistor to convert a input voltage to an output voltage and controls a second power transistor to charge a battery from the output voltage. The first power transistor is coupled between the input voltage and the output voltage, and the second power transistor is coupled between the output voltage and the battery. The power management control circuit includes: a detection transistor detecting a current through the second power transistor and generating a charging reference voltage; an amplifier comparing the output voltage with the voltage of the battery to generate an amplified signal for controlling the charging reference voltage; a comparator comparing a reference voltage with the charging reference voltage to generate an EOC (End of Charge) signal for determining whether to stop charging the battery; and an offset voltage compensation device compensating an input offset voltage of the amplifier.

摘要翻译： 功率管理控制电路控制第一功率晶体管以将输入电压转换为输出电压，并且控制第二功率晶体管以从输出电压对电池充电。 第一功率晶体管耦合在输入电压和输出电压之间，第二功率晶体管耦合在输出电压和电池之间。 电源管理控制电路包括：检测晶体管，检测通过第二功率晶体管的电流并产生充电参考电压; 放大器，其将输出电压与电池的电压进行比较，以产生用于控制充电参考电压的放大信号; 将参考电压与充电参考电压进行比较以产生用于确定是否停止对电池充电的EOC（充电结束）信号的比较器; 以及补偿放大器的输入偏移电压的偏移电压补偿装置。

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。

公开(公告)号：US20140354050A1

公开(公告)日：2014-12-04

申请号：US13907359

申请日：2013-05-31

申请人： Nien-Hui Kung ,  Hsuan-Kai Wang

发明人： Nien-Hui Kung ,  Hsuan-Kai Wang

IPC分类号： H02J7/00

CPC分类号： H02J7/0068 ,  Y10T307/352

摘要： The present invention discloses a power bank and a control method for supplying power. The power bank includes a rechargeable battery, a charging switch for controlling a charging path to the rechargeable battery, a discharging switch for controlling a discharging path from the rechargeable battery, and a control circuit for controlling the charging switch and the discharging switch according to current information of the charging path, current information of the discharging path, and battery capacity information of the rechargeable battery. The power bank is adapted for being connected in series between a power supply apparatus and a load. The control method detects the supply current from the power supply apparatus and the current required by the load to determine the charging and discharging operations of the power bank.

摘要翻译： 本发明公开了一种电源组和用于供电的控制方法。 电源组包括可再充电电池，用于控制到可再充电电池的充电路径的充电开关，用于控制来自可再充电电池的放电路径的放电开关，以及用于根据电流控制充电开关和放电开关的控制电路 充电路径的信息，放电路径的当前信息，以及可再充电电池的电池容量信息。 电源组适于在电源装置和负载之间串联连接。 控制方法检测来自供电装置的供电电流和负载所需的电流，以确定电力库的充电和放电操作。

公开(公告)号：US08283974B2

公开(公告)日：2012-10-09

申请号：US12984088

申请日：2011-01-04

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

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

IPC分类号： G05F1/10

CPC分类号： G05F3/30

摘要： A fast start-up low-voltage bandgap reference voltage generator uses two current generators to provide a first current having a positive temperature coefficient and a second current having a negative temperature coefficient, respectively, and a resistor to generate a temperature independent output voltage according to the sum of the first and second currents. The current generator for providing the first current has a self-bias circuit which uses a single MOSFET to establish the first current, and thereby avoids error caused by mismatched MOSFETs.

摘要翻译： 快速启动低电压带隙参考电压发生器使用两个电流发生器来分别提供具有正温度系数的第一电流和具有负温度系数的第二电流，以及根据下述方式产生与温度无关的输出电压的电阻器 第一和第二电流的总和。 用于提供第一电流的电流发生器具有使用单个MOSFET建立第一电流的自偏置电路，从而避免由不匹配的MOSFET引起的误差。

公开(公告)号：US09153977B2

公开(公告)日：2015-10-06

申请号：US13958106

申请日：2013-08-02

申请人： Nien-Hui Kung

发明人： Nien-Hui Kung

IPC分类号： H02J7/00

CPC分类号： H02J7/0029 ,  H02J7/0022

摘要： The present invention discloses a bi-directional switching regulator and a control circuit thereof. The bi-directional switching regulator includes a power stage, an operation circuit controlling the power stage, and a power path management circuit. The power path management circuit includes a power path switch electrically connected between the output terminal and the battery, and a power path controller controlling the power path switch. The operation circuit generates the operation signal according to the output voltage or a battery voltage of the battery, and the charging current, so that: (1) a voltage difference between the output voltage and the battery voltage is ICHG*R, wherein ICHG represents the charging current and R represents a conduction resistance when the power path switch is fully conductive; or (2) the output voltage is determined by a higher one of a predetermined voltage level and the sum of ICHG*R plus the battery voltage.

摘要翻译： 本发明公开了一种双向开关调节器及其控制电路。 双向开关调节器包括功率级，控制功率级的操作电路和电源通路管理电路。 电源路径管理电路包括电连接在输出端子和电池之间的电力路径开关，以及控制电源路径开关的电源路径控制器。 操作电路根据电池的输出电压或电池电压以及充电电流产生操作信号，使得：（1）输出电压与电池电压之间的电压差为ICHG * R，其中ICHG表示 充电电流和R表示电源路径开关全导通时的导通电阻; 或（2）输出电压由预定电压电平和ICHG * R之和加上电池电压的较高者之一决定。

公开(公告)号：US20150042298A1

公开(公告)日：2015-02-12

申请号：US14246060

申请日：2014-04-05

申请人： Nien-Hui Kung ,  Chia-Hsiang Ling ,  Yu-Huei Lee

发明人： Nien-Hui Kung ,  Chia-Hsiang Ling ,  Yu-Huei Lee

IPC分类号： H02M3/158

CPC分类号： H02M3/158 ,  H02M3/1588 ,  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 lower-gate switch and an inductor. The upper-gate switch is electrically connected between an input terminal and a switching node. The lower-gate switch is electrically connected between the switching node and ground. The bootstrap capacitor is electrically connected between a boost node and the switching node, wherein the boost node is electrically connected to a voltage supply. When a voltage across the bootstrap capacitor is smaller than a reference voltage, the lower-gate switch is turned on to charge the bootstrap capacitor from the voltage supply. When the charging operation to the bootstrap capacitor has been conducted over a predetermined time period or when the current of the inductor has reached a predetermined value, the charging operation to the bootstrap capacitor is ceased.

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，下栅极开关和电感。 上栅极开关电连接在输入端子和开关节点之间。 下栅极开关电连接在开关节点和地之间。 自举电容器电连接在升压节点和开关节点之间，其中升压节点电连接到电压源。 当自举电容器两端的电压小于参考电压时，下栅极开关导通，从电源供给自举电容器。 当在自适应电容器的充电操作已经在预定时间段内进行时，或者当电感器的电流达到预定值时，停止对自举电容器的充电操作。

公开(公告)号：US20140361730A1

公开(公告)日：2014-12-11

申请号：US13911976

申请日：2013-06-06

申请人： Nien-Hui Kung

发明人： Nien-Hui Kung

IPC分类号： H02J7/00

CPC分类号： H02M3/1584 ,  H02J7/0016 ,  H02J2007/0059

摘要： The present invention discloses a bi-directional switching regulator and a control circuit of the bi-directional switching regulator. The bi-directional switching regulator includes a single power stage, an operation circuit, a power path management circuit and a power path controller. The power path management circuit includes a first power path switch and a second power path switch to be coupled to at least two batteries respectively, so that at least two batteries can be charged by the output voltage supplied by the single power stage.

摘要翻译： 本发明公开了双向开关调节器和双向开关调节器的控制电路。 双向开关调节器包括单个功率级，操作电路，电源路径管理电路和电源路径控制器。 电源路径管理电路包括分别耦合到至少两个电池的第一电源路径开关和第二电源路径开关，使得至少两个电池可以由单个功率级提供的输出电压充电。