Power safety system
    1.
    发明授权
    Power safety system 失效
    电力安全系统

    公开(公告)号:US08203234B2

    公开(公告)日:2012-06-19

    申请号:US12720024

    申请日:2010-03-09

    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。

    Overvoltage protection circuit for use in charger circuit system and charge circuit with overvoltage protection function
    2.
    发明授权
    Overvoltage protection circuit for use in charger circuit system and charge circuit with overvoltage protection function 失效
    用于充电器电路系统和充电电路的过压保护电路具有过压保护功能

    公开(公告)号:US08159195B2

    公开(公告)日:2012-04-17

    申请号:US12381272

    申请日:2009-03-10

    CPC分类号: H02J7/0031

    摘要: The present invention discloses an overvoltage protection (OVP) circuit for use in a charger circuit system, comprising: a power transistor electrically connected between a voltage supply and a battery; an OVP circuit which turns off the transistor when a voltage supply exceeds a threshold value; and a multiplexing circuit electrically connected between an output of the OVP circuit and the gate of the transistor. The present invention also discloses a charger circuit with an OVP function, comprising: a single power transistor electrically connected between a voltage supply and a battery; an OVP control circuit which turns off the power transistor when a voltage supply exceeds a threshold value; and a charger control circuit which controls the gate of the power transistor to determine a charge current to the battery when the voltage supply does not reach the threshold value.

    摘要翻译: 本发明公开了一种用于充电器电路系统的过电压保护(OVP)电路,包括:电连接在电压源和电池之间的功率晶体管; OVP电路,当电压提供超过阈值时,该晶体管截止晶体管; 以及电连接在OVP电路的输出和晶体管的栅极之间的复用电路。 本发明还公开了一种具有OVP功能的充电器电路,包括:电连接在电压源和电池之间的单功率晶体管; OVP控制电路,当电源电压超过阈值时,关断功率晶体管; 以及充电器控制电路,其在电压不达到阈值时控制功率晶体管的栅极以确定到电池的充电电流。

    Overvoltage protection circuit for use in charger circuit system and charge circuit with overvoltage protection function
    3.
    发明申请
    Overvoltage protection circuit for use in charger circuit system and charge circuit with overvoltage protection function 失效
    用于充电器电路系统和充电电路的过压保护电路具有过压保护功能

    公开(公告)号:US20100066312A1

    公开(公告)日:2010-03-18

    申请号:US12381272

    申请日:2009-03-10

    IPC分类号: H02J7/04

    CPC分类号: H02J7/0031

    摘要: The present invention discloses an overvoltage protection (OVP) circuit for use in a charger circuit system, comprising: a power transistor electrically connected between a voltage supply and a battery; an OVP circuit which turns off the transistor when a voltage supply exceeds a threshold value; and a multiplexing circuit electrically connected between an output of the OVP circuit and the gate of the transistor. The present invention also discloses a charger circuit with an OVP function, comprising: a single power transistor electrically connected between a voltage supply and a battery; an OVP control circuit which turns off the power transistor when a voltage supply exceeds a threshold value; and a charger control circuit which controls the gate of the power transistor to determine a charge current to the battery when the voltage supply does not reach the threshold value.

    摘要翻译: 本发明公开了一种用于充电器电路系统的过电压保护(OVP)电路,包括:电连接在电压源和电池之间的功率晶体管; OVP电路,当电压提供超过阈值时,该晶体管截止晶体管; 以及电连接在OVP电路的输出和晶体管的栅极之间的复用电路。 本发明还公开了一种具有OVP功能的充电器电路,包括:电连接在电压源和电池之间的单功率晶体管; OVP控制电路,当电源电压超过阈值时,关断功率晶体管; 以及充电器控制电路,其在电压不达到阈值时控制功率晶体管的栅极以确定到电池的充电电流。

    Charging circuit with application system thereof
    5.
    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

    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。

    CHARGING CONTROL CIRCUIT
    8.
    发明申请
    CHARGING CONTROL CIRCUIT 有权
    充电控制电路

    公开(公告)号:US20140062435A1

    公开(公告)日:2014-03-06

    申请号:US13597653

    申请日:2012-08-29

    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。

    Charging control circuit
    9.
    发明授权
    Charging control circuit 有权
    充电控制电路

    公开(公告)号:US08917062B2

    公开(公告)日:2014-12-23

    申请号:US13597653

    申请日:2012-08-29

    IPC分类号: H02J7/00 H02J7/16 H02J7/06

    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。

    Systems and methods for rich presentation overlays
    10.
    发明授权
    Systems and methods for rich presentation overlays 有权
    丰富的演示文稿叠加的系统和方法

    公开(公告)号:US08397153B1

    公开(公告)日:2013-03-12

    申请号:US13275101

    申请日:2011-10-17

    IPC分类号: G06F17/00

    CPC分类号: G06F17/2247 G06F17/211

    摘要: Systems and methods are disclosed for rendering a presentation document on a plurality of client computing devices by a server. A method includes creating a base layer for a page in the presentation document, wherein the base layer comprises a plurality of placeholder elements wherein each placeholder element has an absolute position and size. The method further includes creating an interactive layer for the page in the presentation document, wherein the interactive layer comprises a plurality of interactive element overlays representing a plurality of interactive elements and each interactive element overlay has an absolute position and size that corresponds to the absolute position and size of a placeholder element in the base layer. The method further includes sending the base layer and interactive layer of the page to each client computing device for rendering, wherein each interactive element overlay is rendered on top of its corresponding placeholder element.

    摘要翻译: 公开了用于通过服务器在多个客户端计算设备上呈现呈现文档的系统和方法。 一种方法包括为演示文稿中的页面创建基本层,其中基本层包括多个占位符元素,其中每个占位符元素具有绝对位置和大小。 该方法还包括为呈现文档中的页面创建交互层,其中交互层包括表示多个交互元素的多个交互元素覆盖层,并且每个交互元素覆盖具有对应于绝对位置的绝对位置和大小 和基础层中占位符元素的大小。 该方法还包括将页面的基本层和交互层发送到每个客户端计算设备进行渲染,其中每个交互元素覆盖在其相应的占位符元素之上。