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    Low pin count LED driver integrated circuit
    1.
    发明授权
    Low pin count LED driver integrated circuit 有权
    低引脚数LED驱动器集成电路

    公开(公告)号：US08729820B2

    公开(公告)日：2014-05-20

    申请号：US12831528

    申请日：2010-07-07

    Applicant: Tsung-Wei Huang ,  Shui-Mu Lin ,  Pao-Hsun Yu ,  Ying-Hsin Hsing

    Inventor： Tsung-Wei Huang ,  Shui-Mu Lin ,  Pao-Hsun Yu ,  Ying-Hsin Hsing

    IPC: H05B41/36 ,  G05F1/10

    CPC classification number: H05B33/0815 ,  H05B33/0845 ,  Y02B20/346

    Abstract: A LED driver integrated circuit has a voltage input pin, a voltage output pin, a capacitor pin, and a switching circuit connected to the capacitor pin and the voltage output pin. The capacitor pin and the voltage output pin are for a flying capacitor to be connected therebetween, and thus the switching circuit and the flying capacitor establish a charge pump to convert an input voltage received by the voltage input pin into an output voltage at the voltage output pin.

    Abstract translation: LED驱动器集成电路具有电压输入引脚，电压输出引脚，电容引脚和连接到电容引脚和电压输出引脚的开关电路。 电容器引脚和电压输出引脚用于连接在其间的飞电容器，因此开关电路和飞跨电容器建立电荷泵，以将由电压输入引脚接收的输入电压转换为电压输出端的输出电压 销。

    Overvoltage protection circuit for use in charger circuit system and charge circuit with overvoltage protection function
    4.
    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

    Applicant: Chien-Ping Lu ,  Nien-Hui Kung ,  Li-Wei Lee ,  Kwan-Jen Chu ,  Ying-Hsin Hsing ,  Chun-Tsung Chen

    Inventor： Chien-Ping Lu ,  Nien-Hui Kung ,  Li-Wei Lee ,  Kwan-Jen Chu ,  Ying-Hsin Hsing ,  Chun-Tsung Chen

    IPC: H02J7/10 ,  H02J7/00 ,  H02J7/04 ,  H02H3/00

    CPC classification number: H02J7/0031

    Abstract: 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.

    Abstract translation: 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。

    LOW PIN COUNT LED DRIVER INTEGRATED CIRCUIT
    8.
    发明申请
    LOW PIN COUNT LED DRIVER INTEGRATED CIRCUIT 有权
    低引脚数LED驱动器集成电路

    公开(公告)号：US20110006697A1

    公开(公告)日：2011-01-13

    申请号：US12831528

    申请日：2010-07-07

    Applicant: TSUNG-WEI HUANG ,  SHUI-MU LIN ,  PAO-HSUN YU ,  YING-HSIN HSING

    Inventor： TSUNG-WEI HUANG ,  SHUI-MU LIN ,  PAO-HSUN YU ,  YING-HSIN HSING

    IPC: H05B37/02

    CPC classification number: H05B33/0815 ,  H05B33/0845 ,  Y02B20/346

    Abstract: A LED driver integrated circuit has a voltage input pin, a voltage output pin, a capacitor pin, and a switching circuit connected to the capacitor pin and the voltage output pin. The capacitor pin and the voltage output pin are for a flying capacitor to be connected therebetween, and thus the switching circuit and the flying capacitor establish a charge pump to convert an input voltage received by the voltage input pin into an output voltage at the voltage output pin.

    Abstract translation: LED驱动器集成电路具有电压输入引脚，电压输出引脚，电容引脚和连接到电容引脚和电压输出引脚的开关电路。 电容器引脚和电压输出引脚用于连接在其间的飞电容器，因此开关电路和飞跨电容器建立电荷泵，以将由电压输入引脚接收的输入电压转换为电压输出端的输出电压 销。

    Overvoltage protection circuit for use in charger circuit system and charge circuit with overvoltage protection function
    9.
    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

    Applicant: Chien-Ping Lu ,  Nien-Hui Kung ,  Li-Wei Lee ,  Kwan-Jen Chu ,  Ying-Hsin Hsing ,  Chun-Tsung Chen

    Inventor： Chien-Ping Lu ,  Nien-Hui Kung ,  Li-Wei Lee ,  Kwan-Jen Chu ,  Ying-Hsin Hsing ,  Chun-Tsung Chen

    IPC: H02J7/04

    CPC classification number: H02J7/0031

    Abstract: 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.

    Abstract translation: 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。

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