POWER SOURCE SWITCHING CIRCUIT
    11.
    发明申请
    POWER SOURCE SWITCHING CIRCUIT 有权
    电源切换电路

    公开(公告)号:US20100231048A1

    公开(公告)日:2010-09-16

    申请号:US12477768

    申请日:2009-06-03

    IPC分类号: H02J9/06

    摘要: A power source switching circuit includes a main source input terminal, an auxiliary source input terminal, a control circuit, a first switch, a second switch, and an output terminal. The control circuit is connected to the main source input terminal and the auxiliary source input terminal. The first switch is connected to the main source input terminal and the control circuit. The second switch is connected to the auxiliary source input terminal and the control circuit. The output terminal is connected to the first switch and the second switch. When the main source input terminal is at high level, the auxiliary source input terminal remains high level, the first switch is turned on, and the second switch is turned off by the control circuit.

    摘要翻译: 电源切换电路包括主源输入端子,辅助源极输入端子,控制电路,第一开关,第二开关和输出端子。 控制电路连接到主源输入端子和辅助源输入端子。 第一个开关连接到主源输入端子和控制电路。 第二开关连接到辅助源输入端子和控制电路。 输出端子连接到第一开关和第二开关。 当主源输入端子处于高电平时,辅助电源输入端保持高电平,第一开关导通,第二开关由控制电路断开。

    PULSE MODULATION CIRCUIT AND METHOD
    13.
    发明申请
    PULSE MODULATION CIRCUIT AND METHOD 失效
    脉冲调制电路及方法

    公开(公告)号:US20120038335A1

    公开(公告)日:2012-02-16

    申请号:US12956681

    申请日:2010-11-30

    IPC分类号: G05F1/10

    摘要: A pulse modulation method for adjusting pulse signals according to a working voltage of a load, the method includes the following steps. The working voltage of the load is detected by a feedback terminal of a PWM controller. Whether the load is a light load or a heavy load is determined, if the load is a light load, a pulse skipping mode is entered; the voltage output to the load is detected by the feedback terminal. Whether the voltage output to the load is normal is determined, if the voltage output to the load is low, the pulse skipping mode is stayed for a number of clock cycles; the voltage output to the load is detected to determine whether the voltage is normal. If the voltage output to the load is still low, the pulse skipping mode is jumped out and a normal working mode is entered.

    摘要翻译: 一种用于根据负载的工作电压来调整脉冲信号的脉冲调制方法,该方法包括以下步骤。 负载的工作电压由PWM控制器的反馈端检测。 确定负载是轻负载还是重负载,如果负载是轻负载,则进入脉冲跳跃模式; 通过反馈端检测输出到负载的电压。 确定输出到负载的电压是否正常,如果输出到负载的电压低,则脉冲跳过模式停留多个时钟周期; 检测输出到负载的电压,以确定电压是否正常。 如果输出到负载的电压仍然很低,则跳过脉冲跳跃模式并进入正常工作模式。

    Transient voltage compensation apparatus and power supply using the same
    14.
    发明授权
    Transient voltage compensation apparatus and power supply using the same 有权
    瞬态电压补偿装置和使用其的电源

    公开(公告)号:US08093877B2

    公开(公告)日:2012-01-10

    申请号:US12725457

    申请日:2010-03-17

    IPC分类号: G05F1/40

    CPC分类号: H02M3/156

    摘要: A transient voltage compensation apparatus and a power supply using the same are provided. The power supply mainly uses a compensation circuit coupled between an input terminal and an output terminal of a power converter. When a load of the power supply is switched in a very short time, a power coupled to the compensation circuit is retrieved to compensate the output of the power supply, such that the output voltage is kept steady, and the transient response of the power supply is increased.

    摘要翻译: 提供了瞬态电压补偿装置和使用它的电源。 电源主要使用耦合在功率转换器的输入端子和输出端子之间的补偿电路。 当在非常短​​的时间内切换电源的负载时,检索耦合到补偿电路的功率以补偿电源的输出,使得输出电压保持稳定,并且电源的瞬态响应 增加了。

    Transient voltage compensation apparatus and power supply using the same
    15.
    发明授权
    Transient voltage compensation apparatus and power supply using the same 有权
    瞬态电压补偿装置和使用其的电源

    公开(公告)号:US07714559B2

    公开(公告)日:2010-05-11

    申请号:US11847349

    申请日:2007-08-30

    IPC分类号: G05F1/40

    CPC分类号: H02M3/156

    摘要: A transient voltage compensation apparatus and a power supply using the same are provided. The power supply mainly uses an energy transferring circuit coupled between an input terminal and an output terminal of a power converter. When a load of the power supply is switched in a very short time, a power coupled to the energy transferring circuit is retrieved to compensate the output of the power supply, such that the output voltage is kept steady, and the transient response of the power supply is increased.

    摘要翻译: 提供了瞬态电压补偿装置和使用它的电源。 电源主要使用耦合在功率转换器的输入端子和输出端子之间的能量传递电路。 当在非常短​​的时间内切换电源的负载时,检索耦合到能量传输电路的功率以补偿电源的输出,使得输出电压保持稳定,并且电源的瞬态响应 供应量增加。

    Buck converter
    16.
    发明申请
    Buck converter 有权
    降压转换器

    公开(公告)号:US20070262755A1

    公开(公告)日:2007-11-15

    申请号:US11528337

    申请日:2006-09-28

    IPC分类号: G05F1/00

    摘要: The invention relates to a buck converter including a first high-side switch circuit having an input terminal electrically connected to a first power input terminal, a control terminal electrically connected to a first control signal source, and an output terminal; a second high-side switch circuit having an input terminal electrically connected to a second power input terminal, a control terminal electrically connected to a second control signal source, and an output terminal electrically connected to the output terminal of the first high-side switch; a lower-side switch circuit having a first terminal electrically connected to the output terminal of the first high-side switch and a second terminal electrically connected to a reference power terminal; and a filter electrically connected to the output terminal of the first high-side switch and a power output terminal, wherein the first and second high-side switch circuits will not turn on at the same time.

    摘要翻译: 本发明涉及一种降压转换器,包括第一高侧开关电路,其具有电连接到第一电源输入端子的输入端子,电连接到第一控制信号源的控制端子和输出端子; 第二高侧开关电路,其具有电连接到第二电源输入端子的输入端子,电连接到第二控制信号源的控制端子和电连接到第一高侧开关的输出端子的输出端子; 下侧开关电路,其具有电连接到第一高侧开关的输出端子的第一端子和电连接到参考功率端子的第二端子; 以及电连接到第一高侧开关的输出端子和电力输出端子的滤波器,其中第一和第二高侧开关电路不会同时导通。

    Power source switching circuit
    17.
    发明授权
    Power source switching circuit 有权
    电源开关电路

    公开(公告)号:US08242637B2

    公开(公告)日:2012-08-14

    申请号:US12477768

    申请日:2009-06-03

    IPC分类号: H02J1/00

    摘要: A power source switching circuit includes a main source input terminal, an auxiliary source input terminal, a control circuit, a first switch, a second switch, and an output terminal. The control circuit is connected to the main source input terminal and the auxiliary source input terminal. The first switch is connected to the main source input terminal and the control circuit. The second switch is connected to the auxiliary source input terminal and the control circuit. The output terminal is connected to the first switch and the second switch. When the main source input terminal is at high level, the auxiliary source input terminal remains high level, the first switch is turned on, and the second switch is turned off by the control circuit.

    摘要翻译: 电源切换电路包括主源输入端子,辅助源极输入端子,控制电路,第一开关,第二开关和输出端子。 控制电路连接到主源输入端子和辅助源输入端子。 第一个开关连接到主源输入端子和控制电路。 第二开关连接到辅助源输入端子和控制电路。 输出端子连接到第一开关和第二开关。 当主源输入端子处于高电平时,辅助电源输入端保持高电平,第一开关导通,第二开关由控制电路断开。

    Image processing method for display device
    18.
    发明授权
    Image processing method for display device 有权
    显示设备的图像处理方法

    公开(公告)号:US07755598B2

    公开(公告)日:2010-07-13

    申请号:US11657602

    申请日:2007-01-25

    IPC分类号: G09G5/00

    摘要: The present invention provides an image processing method for a display device. The method includes: calculating an average brightness of an image; adjusting the average brightness to generate an adjusted average brightness; utilizing Brightness Preserving Bi-Histogram Equalization (BBHE) and the adjusted average brightness to process the image; and displaying the image.

    摘要翻译: 本发明提供了一种用于显示装置的图像处理方法。 该方法包括:计算图像的平均亮度; 调整平均亮度以产生调整后的平均亮度; 利用亮度保持双直方图均衡(BBHE)和调整后的平均亮度来处理图像; 并显示图像。

    TRANSIENT VOLTAGE COMPENSATION APPARATUS AND POWER SUPPLY USING THE SAME
    19.
    发明申请
    TRANSIENT VOLTAGE COMPENSATION APPARATUS AND POWER SUPPLY USING THE SAME 有权
    瞬态电压补偿装置和使用它的电源

    公开(公告)号:US20100171474A1

    公开(公告)日:2010-07-08

    申请号:US12725457

    申请日:2010-03-17

    IPC分类号: G05F1/10

    CPC分类号: H02M3/156

    摘要: A transient voltage compensation apparatus and a power supply using the same are provided. The power supply mainly uses a compensation circuit coupled between an input terminal and an output terminal of a power converter. When a load of the power supply is switched in a very short time, a power coupled to the compensation circuit is retrieved to compensate the output of the power supply, such that the output voltage is kept steady, and the transient response of the power supply is increased.

    摘要翻译: 提供了瞬态电压补偿装置和使用它的电源。 电源主要使用耦合在功率转换器的输入端子和输出端子之间的补偿电路。 当在非常短​​的时间内切换电源的负载时,检索耦合到补偿电路的功率以补偿电源的输出,使得输出电压保持稳定,并且电源的瞬态响应 增加了。