Snubber circuit for buck converter
    31.
    发明授权
    Snubber circuit for buck converter 失效
    降压转换器的缓冲电路

    公开(公告)号:US08513931B2

    公开(公告)日:2013-08-20

    申请号:US13031621

    申请日:2011-02-22

    CPC classification number: H02M3/155 H02M2001/344

    Abstract: A snubber circuit for decreasing a voltage spike of a buck converter includes a resistor unit, a capacitor unit, a detecting unit, and a control unit. The resistor unit provides multiple groups of resistance values. The capacitor unit provides multiple groups of capacitance values. The detecting unit detects voltage spikes of the buck converter corresponding to each group of resistance values and capacitance values. The control unit selects each group of resistance and capacitance to respectively connect to the buck converter and determines a group of resistance and capacitance corresponding to a lowest voltage spike by comparing the detected voltage spikes with each other.

    Abstract translation: 用于降低降压转换器的电压尖峰的缓冲电路包括电阻单元,电容器单元,检测单元和控制单元。 电阻单元提供多组电阻值。 电容器单元提供多组电容值。 检测单元检测对应于每组电阻值和电容值的降压转换器的电压尖峰。 控制单元选择每组电阻和电容分别连接到降压转换器,并通过将检测到的电压尖峰相互比较来确定与最低电压尖峰相对应的一组电阻和电容。

    CIRCUIT FOR MEASURING CAPACITANCE AND PARASITIC RESISTANCE OF A CAPACITOR
    32.
    发明申请
    CIRCUIT FOR MEASURING CAPACITANCE AND PARASITIC RESISTANCE OF A CAPACITOR 审中-公开
    用于测量电容器和电容器抗电弧的电路

    公开(公告)号:US20130166238A1

    公开(公告)日:2013-06-27

    申请号:US13435075

    申请日:2012-03-30

    CPC classification number: G01R27/2605

    Abstract: A measuring circuit includes a voltage converting circuit, a discharging and sampling circuit, a control circuit, and a charging circuit. The voltage converting circuit converts a voltage to a working voltage and outputs the working voltage to the discharging and sampling circuit. The charging circuit charges a capacitor and outputs a stop charging signal to the control circuit. The control circuit includes a microprocessor with a timer, to output a discharging control signal to the discharging and sampling circuit for controlling the capacitor to discharge according to the stop charging signal. The discharging and sampling circuit includes a discharging resistor, and measures voltages of the capacitor and the discharging resistor. The microprocessor obtains a discharging time of the capacitor for calculating a capacitance of the capacitor, and obtains the voltages of the capacitor and the discharging resistor for calculating a parasitic resistance of the capacitor.

    Abstract translation: 测量电路包括电压转换电路,放电和采样电路,控制电路和充电电路。 电压转换电路将电压转换为工作电压,并将工作电压输出到放电和采样电路。 充电电路对电容器充电,并向控制电路输出停止充电信号。 控制电路包括具有定时器的微处理器,用于向放电和采样电路输出放电控制信号,以根据停止充电信号控制电容器放电。 放电和采样电路包括放电电阻器,并测量电容器和放电电阻器的电压。 微处理器获得用于计算电容器的电容的电容器的放电时间,并且获得用于计算电容器的寄生电阻的电容器和放电电阻器的电压。

    MOTOR CONTROL CIRCUIT AND KEYBOARD ASSEMBLY HAVING SAME
    33.
    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:US20130141021A1

    公开(公告)日:2013-06-06

    申请号:US13600208

    申请日:2012-08-30

    CPC classification number: G06F3/0202 E05F15/73 E05Y2900/606

    Abstract: An exemplary motor control circuit for controlling a motor includes a motor driving chip, a sensing unit, and a controller. The motor driving chip motor driving chip is electronically connected to the motor. The sensing unit includes a proximity sensor, the proximity sensor detects whether an external object is proximate to the proximity sensor. The controller is electronically connected to the motor driving chip and the sensing unit, the controller controls the motor driving chip to drive the motor to rotate in a first direction when an external object is detected, and controls the motor driving chip to drive the motor to rotate in a second direction reverse to the first direction when no external object is detected for a predetermined period of time.

    Abstract translation: 用于控制电动机的示例性电动机控制电路包括电动机驱动芯片,感测单元和控制器。 马达驱动芯片马达驱动芯片电连接到马达。 感测单元包括接近传感器,接近传感器检测外部物体是否靠近接近传感器。 控制器电连接到电动机驱动芯片和感测单元,当检测到外部物体时,控制器控制电动机驱动芯片驱动电动机沿第一方向旋转,并且控制电动机驱动芯片以驱动电动机 当在预定时间段内没有检测到外部物体时,沿与第一方向相反的第二方向旋转。

    VOLTAGE ADJUSTING DEVICE FOR SOLID STATE DRIVE
    34.
    发明申请
    VOLTAGE ADJUSTING DEVICE FOR SOLID STATE DRIVE 审中-公开
    用于固态驱动的电压调节装置

    公开(公告)号:US20130119959A1

    公开(公告)日:2013-05-16

    申请号:US13600221

    申请日:2012-08-31

    CPC classification number: G06F1/26 G01R31/40

    Abstract: A voltage regulating device includes a connector, a slot, a voltage regulating circuit, and a control module. The connector is obtains an initial voltage from an external power supply. The slot is configured for electrically connecting to a load. The voltage regulating circuit is connected between the connector and the slot. In accordance with user input into a keyboard connected to a control microchip as to a voltage level required, the voltage regulating circuit converts the initial voltage to a required test voltage and outputs the required test voltage to the load by the slot. The control microchip controls the voltage regulating circuit to convert the initial voltage into the required test voltage.

    Abstract translation: 电压调节装置包括连接器,插槽,电压调节电路和控制模块。 连接器从外部电源获得初始电压。 插槽被配置为电连接到负载。 电压调节电路连接在连接器和插槽之间。 根据用户对连接到控制微芯片的键盘的用户输入,达到所需的电压水平,电压调节电路将初始电压转换为所需的测试电压,并通过插槽将所需的测试电压输出到负载。 控制微芯片控制电压调节电路将初始电压转换成所需的测试电压。

    BALANCING RESISTOR TESTING APPARATUS
    35.
    发明申请
    BALANCING RESISTOR TESTING APPARATUS 审中-公开
    平衡电阻测试装置

    公开(公告)号:US20130049778A1

    公开(公告)日:2013-02-28

    申请号:US13537062

    申请日:2012-06-29

    CPC classification number: G01R31/028 H02J7/0016 H02J7/0021 H02J7/345

    Abstract: A balancing resistor testing apparatus is configured for acquiring a resistance of a balancing resistor electronically connected to a supercapacitor of a series supercapacitor assembly in parallel. The balancing resistor testing apparatus includes a controller and a digital potentiometer. The controller detects a voltage across each supercapacitor of the series supercapacitor. The digital potentiometer comprising a plurality of variable resistors each of which is electronically connected to a supercapacitor in parallel, the controller controls the digital potentiometer to continuously adjust the effective resistance of each potentiometer until the controller detects that each supercapacitor has the same or very similar voltage.

    Abstract translation: 平衡电阻测试装置被配置为并联获取电连接到串联超级电容器组件的超级电容器的平衡电阻器的电阻。 平衡电阻测试装置包括控制器和数字电位计。 控制器检测串联超级电容器的每个超级电容器上的电压。 数字电位器包括多个可变电阻器,每个可变电阻器并联电连接到超级电容器,控制器控制数字电位器以连续调节每个电位器的有效电阻,直到控制器检测到每个超级电容器具有相同或非常相似的电压 。

    Computer fan alarm circuit
    36.
    发明授权
    Computer fan alarm circuit 失效
    电脑风扇报警电路

    公开(公告)号:US08378611B2

    公开(公告)日:2013-02-19

    申请号:US12837437

    申请日:2010-07-15

    CPC classification number: G06F11/0766 G06F1/20 G06F11/0754 G06F11/327

    Abstract: A circuit for alarming abnormal state of a computer fan includes a detection circuit coupled to the computer fan, a controller coupled to the detection circuit and the computer fan, an alarm unit coupled to the controller. The detection circuit detects a power source and a speed control signal received by the computer fan, the controller determines the work state of the computer fan according to the power source, the speed control signal, and a speed signal received from the computer fan and raises an alarm through the alarm unit if the computer fan is not working normally.

    Abstract translation: 用于警报计算机风扇的异常状态的电路包括耦合到计算机风扇的检测电路,耦合到检测电路和计算机风扇的控制器,耦合到控制器的报警单元。 检测电路检测计算机风扇接收的电源和速度控制信号,控制器根据电源,速度控制信号和从计算机风扇接收的速度信号来确定计算机风扇的工作状态,并提高 如果计算机风扇不能正常工作,则通过报警单元进行报警。

    WIRELESS UNLOCKING SYSTEM
    37.
    发明申请
    WIRELESS UNLOCKING SYSTEM 失效
    无线解锁系统

    公开(公告)号:US20120329427A1

    公开(公告)日:2012-12-27

    申请号:US13224347

    申请日:2011-09-02

    CPC classification number: G07C9/00111

    Abstract: A wireless unlocking system includes a programmable telephone. When the programmable telephone receives a call from a communication terminal along with a calling telephone number, the calling telephone number is matched with a number of pre-stored telephone numbers. The programmable telephone transmits an unlocking signal to an electrically controlled lock and unlocks a door if the telephone number of the call successfully matches one of the pre-stored telephone numbers.

    Abstract translation: 无线解锁系统包括可编程电话。 当可编程电话与呼叫电话号码一起接收到来自通信终端的呼叫时,呼叫电话号码与多个预先存储的电话号码相匹配。 可编程电话将解锁信号发送到电控锁,并且如果呼叫的电话号码成功匹配预存的电话号码中的一个,则解锁门。

    Output voltage adjustment circuit for buck circuits
    38.
    发明授权
    Output voltage adjustment circuit for buck circuits 失效
    降压电路的输出电压调整电路

    公开(公告)号:US08339119B2

    公开(公告)日:2012-12-25

    申请号:US13073980

    申请日:2011-03-28

    CPC classification number: H02M3/157 H02M2001/0025

    Abstract: An output voltage adjustment circuit for buck circuits includes a microcontroller, first to eighth keys, and a display unit. The first to eighth keys input voltage adjustment signals to the microcontroller. A first input pin of the microcontroller is connected to a voltage output terminal. A second resistor is connected between the first input pin of the microcontroller and ground. A first to a sixth input/output pin of the microcontroller are connected to the display unit. A first to an eighth output pin of the microcontroller are connected to a pulse width modulation (PWM) controller. The first to eighth keys are selectively activated to provide voltage adjustment signals to the microcontroller, sampling output voltages of the voltage output terminal, comparing with a predetermined voltage, controlling the PWM controller to fine tune the duty cycle to output a stable voltage from the voltage output terminal. The display unit displays the voltages on the voltage output terminal.

    Abstract translation: 用于降压电路的输出电压调节电路包括微控制器,第一至第八键和显示单元。 第一至第八键输入电压调节信号给微控制器。 微控制器的第一个输入引脚连接到电压输出端子。 第二个电阻连接在微控制器的第一个输入引脚和地之间。 微控制器的第一至第六输入/输出引脚连接到显示单元。 微控制器的第一至第八输出引脚连接到脉宽调制(PWM)控制器。 选择性地激活第一至第八键以向微控制器提供电压调整信号,与预定电压相比较,对电压输出端子的输出电压进行采样,控制PWM控制器以微调占空比以从电压输出稳定的电压 输出端子。 显示单元显示电压输出端子上的电压。

    SEQUENCE CONTROL CIRCUIT FOR POWER SOURCE
    39.
    发明申请
    SEQUENCE CONTROL CIRCUIT FOR POWER SOURCE 有权
    电源序列控制电路

    公开(公告)号:US20120306273A1

    公开(公告)日:2012-12-06

    申请号:US13181523

    申请日:2011-07-13

    Abstract: 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.

    Abstract translation: 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。

    Driver circuit
    40.
    发明授权
    Driver circuit 失效
    驱动电路

    公开(公告)号:US08314640B2

    公开(公告)日:2012-11-20

    申请号:US13110917

    申请日:2011-05-19

    CPC classification number: G06F1/26

    Abstract: A driver circuit drives a pulse width modulation (PWM) controller. The driver circuit includes an enabling circuit, a power supply input control circuit, a stabilizing circuit, and a discharge circuit. The stabilizing circuit is electrically connected to the PWM controller. The power supply input control circuit is electrically connected between the enabling circuit and the stabilizing circuit. The discharge circuit is electrically connected between the stabilizing circuit and the ground. In response to the driver circuit working in normal operation, the enabling circuit enables the power supply input control circuit to output a working voltage to the stabilizing circuit, and in response to the process of the driver circuit restarting, the enabling circuit enables the power supply input to stop outputting power supply to the stabilizing circuit. The discharge circuit leads a residual voltage of the stabilizing circuit to the ground, during the process of the driver circuit being restarted.

    Abstract translation: 驱动电路驱动脉宽调制(PWM)控制器。 驱动器电路包括使能电路,电源输入控制电路,稳定电路和放电电路。 稳压电路与PWM控制器电连接。 电源输入控制电路电连接在使能电路和稳定电路之间。 放电电路电连接在稳压电路和地之间。 响应于驱动电路正常工作,使能电路使得电源输入控制电路向稳定电路输出工作电压,并且响应于驱动电路重新启动的过程,使能电路使电源 输入停止向稳定电路输出电源。 在驱动器电路重新启动的过程中,放电电路将稳定电路的剩余电压引向地。

Patent Agency Ranking