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12 条记录 (耗时 0.019 秒)

    Thermal regulation of a class-D audio amplifier
    1.
    发明申请
    Thermal regulation of a class-D audio amplifier 失效
    D类音频放大器的热调节

    公开(公告)号：US20100117731A1

    公开(公告)日：2010-05-13

    申请号：US12591030

    申请日：2009-11-05

    申请人： Chun-Tsung Chen ,  Jwin-Yen Guo ,  Chung-Fu Wang

    发明人： Chun-Tsung Chen ,  Jwin-Yen Guo ,  Chung-Fu Wang

    IPC分类号： H03F1/30 ,  H03F3/217

    CPC分类号： H03F3/2173 ,  H03F1/523 ,  H03F2200/447

    摘要： A class-D audio amplifier is protected by thermal regulation which decreases the gain of the class-D audio amplifier by asserting an over-temperature signal when the temperature of the class-D audio amplifier is detected to be higher than a threshold. The output of the class-D audio amplifier is therefore reduced by the smaller gain, and the chance for the class-D audio amplifier to stop working due to overheating is greatly reduced.

    摘要翻译： D类音频放大器受到热调节的保护，当D类音频放大器的温度检测到高于阈值时，通过断言过温信号来降低D类音频放大器的增益。 因此，D类音频放大器的输出由于较小的增益而减小，D类音频放大器由于过热而停止工作的可能性大大降低。

    Direct current voltage boosting/bucking device
    2.
    发明授权
    Direct current voltage boosting/bucking device 有权
    直流升压/降压装置

    公开(公告)号：US07148666B1

    公开(公告)日：2006-12-12

    申请号：US11183611

    申请日：2005-07-18

    申请人： Liang-Pin Tai ,  Chun-Tsung Chen ,  Chin-Chiang Yeh ,  Po-Shun Chung ,  Kwan-Jen Chu ,  Chung-Lung Pai

    发明人： Liang-Pin Tai ,  Chun-Tsung Chen ,  Chin-Chiang Yeh ,  Po-Shun Chung ,  Kwan-Jen Chu ,  Chung-Lung Pai

    IPC分类号： G05F1/56

    CPC分类号： G05F1/575 ,  H02M2001/0045

    摘要： A direct current voltage boosting/bucking device includes a direct current voltage boosting circuit and a low drop-out (LDO) linear voltage converting circuit. The direct current voltage boosting circuit boosts an input voltage so as to generate an output voltage higher than the input voltage. The LDO linear voltage converting circuit converts the output voltage into a load voltage that is to be provided to a load, and controls the direct current voltage boosting circuit in accordance with a feedback signal from the load such that the output voltage and the load voltage have a minimum drop-out voltage differential therebetween and such that current flow through the load is maintained at a determined level.

    摘要翻译： 直流升压/降压装置包括直流升压电路和低压降（LDO）线性电压转换电路。 直流升压电路提高输入电压，以产生高于输入电压的输出电压。 LDO线性电压转换电路将输出电压转换为要提供给负载的负载电压，并且根据来自负载的反馈信号控制直流升压电路，使得输出电压和负载电压具有 在它们之间的最小脱出电压差，并且使得通过负载的电流保持在确定的水平。

    Overvoltage protection circuit for use in charger circuit system and charge circuit with overvoltage protection function
    3.
    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

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

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

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

    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。

    POWER SAFETY SYSTEM
    4.
    发明申请
    POWER SAFETY SYSTEM 失效
    电力安全系统

    公开(公告)号：US20100231047A1

    公开(公告)日：2010-09-16

    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： H02J7/34

    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。

    DIRECT CURRENT VOLTAGE BOOSTING/BUCKING DEVICE
    6.
    发明申请
    DIRECT CURRENT VOLTAGE BOOSTING/BUCKING DEVICE 有权
    直流电压升压/降压装置

    公开(公告)号：US20060261790A1

    公开(公告)日：2006-11-23

    申请号：US11183611

    申请日：2005-07-18

    申请人： Liang-Pin Tai ,  Chun-Tsung Chen ,  Chin-Chiang Yeh ,  Po-Shun Chung ,  Kwan-Jen Chu ,  Chung-Lung Pai

    发明人： Liang-Pin Tai ,  Chun-Tsung Chen ,  Chin-Chiang Yeh ,  Po-Shun Chung ,  Kwan-Jen Chu ,  Chung-Lung Pai

    IPC分类号： G05F1/00

    CPC分类号： G05F1/575 ,  H02M2001/0045

    摘要： A direct current voltage boosting/bucking device includes a direct current voltage boosting circuit and a low drop-out (LDO) linear voltage converting circuit. The direct current voltage boosting circuit boosts an input voltage so as to generate an output voltage higher than the input voltage. The LDO linear voltage converting circuit converts the output voltage into a load voltage that is to be provided to a load, and controls the direct current voltage boosting circuit in accordance with a feedback signal from the load such that the output voltage and the load voltage have a minimum drop-out voltage differential therebetween and such that current flow through the load is maintained at a determined level.

    摘要翻译： 直流升压/降压装置包括直流升压电路和低压降（LDO）线性电压转换电路。 直流升压电路提高输入电压，以产生高于输入电压的输出电压。 LDO线性电压转换电路将输出电压转换为要提供给负载的负载电压，并且根据来自负载的反馈信号控制直流升压电路，使得输出电压和负载电压具有 在它们之间的最小脱出电压差，并且使得通过负载的电流保持在确定的水平。

    LED driving topology, light source module based thereon, and digital camera having the same
    7.
    发明授权
    LED driving topology, light source module based thereon, and digital camera having the same 失效
    LED驱动拓扑，基于其的光源模块和具有该LED驱动拓扑的数字照相机

    公开(公告)号：US08159138B2

    公开(公告)日：2012-04-17

    申请号：US12379951

    申请日：2009-03-05

    申请人： Chun-Tsung Chen ,  Chun-Hsiung Chang ,  Tsan-Huei Wu ,  Shih-Hui Chen

    发明人： Chun-Tsung Chen ,  Chun-Hsiung Chang ,  Tsan-Huei Wu ,  Shih-Hui Chen

    IPC分类号： G09G3/10

    CPC分类号： H04N5/2256 ,  H05B33/0815 ,  Y02B20/347

    摘要： A LED driving topology includes a LED array and a current source connected in series between two power inputs receiving a positive voltage and a negative voltage respectively. This topology increases the voltage difference across the LED array and hence has the capability of lighting up more serially connected LEDs, without requiring an additional boost circuit or a high voltage. In addition, the circuit of the current source can be made by a low-voltage manufacturing process.

    摘要翻译： LED驱动拓扑结构包括分别连接在两个接收正电压和负电压的电源输入之间的LED阵列和电流源。 该拓扑增加了LED阵列上的电压差，因此具有点亮更串联连接的LED的能力，而不需要额外的升压电路或高电压。 此外，电流源的电路可以通过低电压制造工艺制成。

    Overvoltage protection circuit for use in charger circuit system and charge circuit with overvoltage protection function
    8.
    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

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

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

    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。

    Power safety system
    9.
    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

    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。