MOTOR CONTROL CIRCUIT AND KEYBOARD ASSEMBLY HAVING SAME
    21.
    发明申请
    MOTOR CONTROL CIRCUIT AND KEYBOARD ASSEMBLY HAVING SAME 审中-公开
    电机控制电路和键盘组件

    公开(公告)号:US20130139975A1

    公开(公告)日:2013-06-06

    申请号:US13563755

    申请日:2012-08-01

    IPC分类号: H02P1/22 E05F15/20

    摘要: A motor control circuit for controlling rotation directions of a motor includes a primary power supply, a voltage monitor unit, a motor driving chip, a controller and a backup power supply. The backup power supply is constantly charged by the primary power supply when the primary power supply is in service. The voltage monitor unit is electronically connected to the primary power supply, and is configured for determining whether the primary power supply is in or out of service. The controller controls the motor driving chip to drive the motor to rotate in a first direction when the primary power supply is in service, and alternatively controlling the motor driving chip to drive the motor to rotate in a second direction reverse to the first direction when the primary power supply is out of service.

    摘要翻译: 用于控制电动机的旋转方向的电动机控制电路包括主电源,电压监视器单元,电动机驱动芯片,控制器和备用电源。 当主电源正在使用时,备用电源始终由主电源充电。 电压监视器单元电连接到主电源,并且被配置用于确定主电源是否处于使用中。 当主电源正在使用时,控制器控制电动机驱动芯片驱动电动机沿第一方向旋转,并且当控制电动机驱动芯片驱动电动机以沿与第一方向相反的第二方向旋转时 主电源不工作。

    POWER SUPPLY DEVICE FOR CENTRAL PROCESSING UNIT
    22.
    发明申请
    POWER SUPPLY DEVICE FOR CENTRAL PROCESSING UNIT 审中-公开
    中央处理单元用电源装置

    公开(公告)号:US20130124880A1

    公开(公告)日:2013-05-16

    申请号:US13600238

    申请日:2012-08-31

    IPC分类号: G06F1/26

    摘要: A power supply device is configured for supplying electrical power to a central processing unit (CPU) of an electronic device. The CPU operates in a number of working modes. The power supply device includes a power supply module operating in a number of power supply modules corresponding to the working modes of the CPU, a number of compensation circuits respectively corresponding to the power supply modes, and a control module. The control module determines the working mode of the CPU and controls the corresponding compensation circuit to electrically connect to the power supply module to provide a loop compensation to the power supply module which improves stability and responding speed of the power supply module.

    摘要翻译: 电源装置被配置为向电子设备的中央处理单元(CPU)提供电力。 CPU以多种工作模式运行。 电源装置包括在与CPU的工作模式对应的多个电源模块中工作的电源模块,分别对应于电源模式的多个补偿电路以及控制模块。 控制模块确定CPU的工作模式,并控制相应的补偿电路以电连接到电源模块,以向电源模块提供环路补偿,从而提高电源模块的稳定性和响应速度。

    Buck converter with delay circuit
    23.
    发明授权
    Buck converter with delay circuit 失效
    具有延迟电路的降压转换器

    公开(公告)号:US08395369B2

    公开(公告)日:2013-03-12

    申请号:US13171648

    申请日:2011-06-29

    IPC分类号: G05F5/00 G05F1/40

    摘要: A buck converter includes a power supply unit, two MOSFETs and a delay circuit. The PWM module is coupled to the gates of the two MOSFETs to alternatively turn on the two MOSFETs. The delay circuit is coupled between an output terminal and an input node of the PWM module for making sure that a voltage applied to the PWM module is after a voltage applied to a drain the MOSFETs.

    摘要翻译: 降压转换器包括电源单元,两个MOSFET和延迟电路。 PWM模块耦合到两个MOSFET的栅极,以交替地导通两个MOSFET。 延迟电路耦合在PWM模块的输出端子和输入节点之间,用于确保施加到PWM模块的电压在施加到漏极MOSFET的电压之后。

    MEASUREMENT CIRCUIT FOR MEASURING DIRECT CURRENT RESISTANCE OF INDUCTOR
    24.
    发明申请
    MEASUREMENT CIRCUIT FOR MEASURING DIRECT CURRENT RESISTANCE OF INDUCTOR 审中-公开
    用于测量电感器的直流电阻的测量电路

    公开(公告)号:US20120316817A1

    公开(公告)日:2012-12-13

    申请号:US13181524

    申请日:2011-07-13

    IPC分类号: G06F19/00

    CPC分类号: G01R27/08

    摘要: A circuit for measuring the DC resistance of an inductor includes an input unit, a microprocessor module, a current source and a voltage detecting unit. The microprocessor module receives signals from the input unit and generates different signals to command constant currents through the inductor by the current source. The voltage detecting unit reads voltages of the inductor and outputs the voltages obtained to the microprocessor module. According to the currents and the voltages read, the microprocessor module may calculate the DC resistance(s) of the inductor.

    摘要翻译: 用于测量电感器的直流电阻的电路包括输入单元,微处理器模块,电流源和电压检测单元。 微处理器模块从输入单元接收信号,并产生不同的信号,通过电流源通过电感器指示恒定电流。 电压检测单元读取电感器的电压并将获得的电压输出到微处理器模块。 根据读取的电流和电压,微处理器模块可以计算电感器的直流电阻。

    BUCK CONVERTER
    25.
    发明申请
    BUCK CONVERTER 失效
    BUCK转换器

    公开(公告)号:US20120169314A1

    公开(公告)日:2012-07-05

    申请号:US13093209

    申请日:2011-04-25

    IPC分类号: G05F1/618

    摘要: A buck converter includes a first MOSFET and a second MOSFET connected in series, a PWM module coupled to gates of the first MOSFET and the second MOSFET, and a control unit being coupled to the input current acquired unit, the input voltage acquired unit, the output current acquired unit, the output voltage acquired unit and the PWM module respectively, wherein the control unit controls a switch frequency of the PWM module and acquires the input current, the input voltage, the output current and the output voltage from the input current acquired unit, the input voltage acquired unit, the output current acquired unit and the output voltage acquired unit respectively.

    摘要翻译: 降压转换器包括串联连接的第一MOSFET和第二MOSFET,连接到第一MOSFET和第二MOSFET的栅极的PWM模块,以及耦合到输入电流获取单元的控制单元,输入电压获取单元, 输出电流获取单元,输出电压获取单元和PWM模块,其中控制单元控制PWM模块的开关频率,并从获得的输入电流获取输入电流,输入电压,输出电流和输出电压 单位,输入电压获取单位,输出电流获取单位和输出电压采集单位。

    MEASUREMENT CIRCUIT FOR CAPACITOR
    26.
    发明申请
    MEASUREMENT CIRCUIT FOR CAPACITOR 失效
    电容器测量电路

    公开(公告)号:US20120161781A1

    公开(公告)日:2012-06-28

    申请号:US12981507

    申请日:2010-12-30

    IPC分类号: G01R31/12

    CPC分类号: G01R31/028 G01R31/025

    摘要: A measurement circuit includes a switch unit with a number of keys selectively pressed to output different resistance regulating signals. A resistance setting circuit receives the resistance regulating signals and connects different resistances to a voltage circuit and a current circuit. The voltage circuit outputs different voltages. The current voltage receives a voltage from the voltage circuit and outputs a current to a capacitor. A detecting circuit measures a temperature of the capacitor and outputs the temperature to the resistance setting circuit. The resistance setting circuit compares the received temperature with a preset temperature. If the received temperature is equal to or greater than the preset temperature, the resistance setting circuit outputs short-circuit information of the capacitor. If the received temperature is less than the preset temperature, the resistance setting circuit outputs normal information of the capacitor. A display unit displays the information of the capacitor.

    摘要翻译: 测量电路包括具有多个键的开关单元,其被选择性地按压以输出不同的电阻调节信号。 电阻设定电路接收电阻调节信号,并将不同的电阻连接到电压电路和电流电路。 电压电路输出不同的电压。 电流电压从电压电路接收电压并向电容器输出电流。 检测电路测量电容器的温度并将温度输出到电阻设定电路。 电阻设定电路将接收到的温度与预设温度进行比较。 如果接收到的温度等于或大于预设温度,则电阻设定电路输出电容器的短路信息。 如果接收到的温度低于预设温度,则电阻设定电路输出电容器的正常信息。 显示单元显示电容器的信息。

    POWER DETECTION DEVICE FOR MOTHERBOARD
    27.
    发明申请
    POWER DETECTION DEVICE FOR MOTHERBOARD 审中-公开
    电源检测装置

    公开(公告)号:US20120159227A1

    公开(公告)日:2012-06-21

    申请号:US13070491

    申请日:2011-03-24

    IPC分类号: G06F1/26

    CPC分类号: G06F1/28

    摘要: A motherboard detection device for a motherboard having a plurality of power input terminals. The power detection device includes a current sampling module, a voltage sampling module, a processor, and a display unit. The current sampling module is connected to the power input terminals for obtaining the current of each power input terminal. The voltage sampling module is connected to the power input terminals for obtaining the voltage of each power input terminal. The processor is connected to the current sampling module and the voltage sampling module for acquiring the current and the voltage of each power input terminal and calculating the input power of each power input terminal based on the current and the voltage of each power input terminal to obtain input power data. The display unit is connected to the processor for receiving the input power data from the processor and displaying the input power data.

    摘要翻译: 一种用于具有多个电源输入端子的母板的主板检测装置。 功率检测装置包括电流采样模块,电压采样模块,处理器和显示单元。 电流采样模块连接到电源输入端子,以获得每个电源输入端子的电流。 电压采样模块连接到电源输入端子,以获得每个电源输入端子的电压。 处理器连接到当前采样模块和电压采样模块,用于获取每个电力输入端的电流和电压,并且基于每个电力输入端的电流和电压来计算每个电力输入端的输入功率以获得 输入功率数据。 显示单元连接到处理器,用于从处理器接收输入的电力数据并显示输入的电力数据。

    Sequence control circuit for power source
    28.
    发明授权
    Sequence control circuit for power source 有权
    电源顺序控制电路

    公开(公告)号:US08810064B2

    公开(公告)日:2014-08-19

    申请号:US13181523

    申请日:2011-07-13

    IPC分类号: H02J3/00

    摘要: A sequence control circuit for power sources includes two switched circuits and a sequence control unit. Each of the switched circuits has a control node and is coupled between a power source and a load. The sequence control unit includes two output terminals coupled to the control nodes. The output terminals generate control signals to control the sequence of the circuits being turned on.

    摘要翻译: 用于电源的序列控制电路包括两个开关电路和一个序列控制单元。 每个开关电路具有控制节点并耦合在电源和负载之间。 序列控制单元包括耦合到控制节点的两个输出端。 输出端产生控制信号以控制电路接通的顺序。

    Power supply circuit for a CPU
    29.
    发明授权
    Power supply circuit for a CPU 失效
    CPU供电电路

    公开(公告)号:US08583950B2

    公开(公告)日:2013-11-12

    申请号:US13090469

    申请日:2011-04-20

    IPC分类号: G06F1/26

    CPC分类号: G06F1/305

    摘要: A power supply circuit for a CPU (central processing unit) includes a CPU, a power supply, a plurality of voltage adjustment modules, a pulse width modulator, a plurality of resistivity selection modules, and a module management unit. The resistivity selection module includes an electronic switch, a first resistor, a second resistor, a third resistor, and a fourth resistor. When the CPU operates abnormally, the power supply circuit utilizes the resistors in the resistivity selection module as voltage dividers, thereby restricting MOSFET or other components to operate in a normal voltage range.

    摘要翻译: CPU(中央处理单元)的电源电路包括CPU,电源,多个电压调整模块,脉宽调制器,多个电阻率选择模块和模块管理单元。 电阻率选择模块包括电子开关,第一电阻器,第二电阻器,第三电阻器和第四电阻器。 当CPU工作异常时,电源电路利用电阻率选择模块中的电阻作为分压器,从而限制MOSFET或其他组件在正常电压范围内工作。

    Power supply circuit with spike suppression circuit
    30.
    发明授权
    Power supply circuit with spike suppression circuit 失效
    电源电路采用尖峰抑制电路

    公开(公告)号:US08570777B2

    公开(公告)日:2013-10-29

    申请号:US13207342

    申请日:2011-08-10

    IPC分类号: H02M1/12 H02M1/14

    摘要: A power supply circuit includes a pulse width modulation (PWM) chip, a number of phase circuits, a voltage output end, and a spike suppression circuit. The spike suppression circuit is connected to each of the phase circuits and the voltage output end. The PWM chip controls all of the phase circuits to alternately output power supply voltages according to a predetermined sequence. The spike suppression circuit receives the power supply voltages, and filters out voltage spikes in the power supply voltages, thereby outputting steady voltages to the voltage output end.

    摘要翻译: 电源电路包括脉冲宽度调制(PWM)芯片,多个相位电路,电压输出端和尖峰抑制电路。 尖峰抑制电路连接到每个相电路和电压输出端。 PWM芯片控制所有的相电路,以根据预定的顺序交替地输出电源电压。 尖峰抑制电路接收电源电压,并且滤除电源电压中的电压尖峰,从而向电压输出端输出稳定电压。