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38 条记录 (耗时 0.022 秒)

    CIRCUIT COMBINING A SWITCHING REGULATOR AND AN OVERVOLTAGE DETECTION CIRCUIT
    1.
    发明申请
    CIRCUIT COMBINING A SWITCHING REGULATOR AND AN OVERVOLTAGE DETECTION CIRCUIT 有权
    组合开关调节器的电路和过电压检测电路

    公开(公告)号：US20090289611A1

    公开(公告)日：2009-11-26

    申请号：US12124752

    申请日：2008-05-21

    申请人： Vijay Mangtani ,  Weiyun Chen ,  Ravi Vig

    发明人： Vijay Mangtani ,  Weiyun Chen ,  Ravi Vig

    IPC分类号： G05F1/56

    CPC分类号： G05F1/565 ,  H02M1/32 ,  H02M3/158

    摘要： An electronic circuit combines a synchronous switching regulator circuit with an overvoltage detection circuit. The overvoltage detection circuit is configured to generate an overvoltage signal capable of an overvoltage state indicative of a power supply voltage being above a predetermined threshold voltage. The switching regulator circuit is coupled to receive the overvoltage signal. The switching regulator is also configured, in response to the overvoltage signal being in the overvoltage state, to generate a first control signal resulting in at least one of two series coupled transistors being in an off condition.

    摘要翻译： 电子电路将同步开关调节器电路与过电压检测电路相结合。 过电压检测电路被配置为产生能够表示电源电压高于预定阈值电压的过电压状态的过电压信号。 开关稳压器电路被耦合以接收过电压信号。 开关调节器还被配置为响应于过电压信号处于过电压状态，以产生第一控制信号，导致两个串联耦合晶体管中的至少一个处于关断状态。

    Circuit combining a switching regulator and an overvoltage detection circuit
    2.
    发明授权
    Circuit combining a switching regulator and an overvoltage detection circuit 有权
    组合开关稳压器和过压检测电路的电路

    公开(公告)号：US07834603B2

    公开(公告)日：2010-11-16

    申请号：US12124752

    申请日：2008-05-21

    申请人： Vijay Mangtani ,  Weiyun Chen ,  Ravi Vig

    发明人： Vijay Mangtani ,  Weiyun Chen ,  Ravi Vig

    IPC分类号： G05F1/10 ,  G05F1/656 ,  G05F1/652

    CPC分类号： G05F1/565 ,  H02M1/32 ,  H02M3/158

    摘要： An electronic circuit combines a synchronous switching regulator circuit with an overvoltage detection circuit. The overvoltage detection circuit is configured to generate an overvoltage signal capable of an overvoltage state indicative of a power supply voltage being above a predetermined threshold voltage. The switching regulator circuit is coupled to receive the overvoltage signal. The switching regulator is also configured, in response to the overvoltage signal being in the overvoltage state, to generate a first control signal resulting in at least one of two series coupled transistors being in an off condition.

    摘要翻译： 电子电路将同步开关调节器电路与过电压检测电路相结合。 过电压检测电路被配置为产生能够表示电源电压高于预定阈值电压的过电压状态的过电压信号。 开关稳压器电路被耦合以接收过电压信号。 开关调节器还被配置为响应于过电压信号处于过电压状态，以产生第一控制信号，导致两个串联耦合晶体管中的至少一个处于关断状态。

    CIRCUITRY TO DRIVE PARALLEL LOADS SEQUENTIALLY
    3.
    发明申请
    CIRCUITRY TO DRIVE PARALLEL LOADS SEQUENTIALLY 有权
    电路按顺序驱动并联负载

    公开(公告)号：US20130162152A1

    公开(公告)日：2013-06-27

    申请号：US13334250

    申请日：2011-12-22

    申请人： Nai-Chi Lee ,  Gregory Szczeszynski ,  Vijay Mangtani

    发明人： Nai-Chi Lee ,  Gregory Szczeszynski ,  Vijay Mangtani

    IPC分类号： H05B37/02 ,  H02J4/00

    CPC分类号： H05B33/0851 ,  H02M3/158 ,  H02M2001/0009 ,  H05B33/0818 ,  H05B33/0827 ,  Y02B20/346 ,  Y10T307/25

    摘要： In one aspect, a circuit includes a plurality of comparators. Each comparator is configured to receive a first input from a corresponding load of a plurality of loads and to receive a second input as a regulation voltage. The circuit also includes an amplifier configured to receive signals provided by the plurality of comparators, a pulse-width modulation (PWM) circuit configured to receive a control signal from the amplifier and to provide a signal to a primary switch to control voltage provided to the loads and an output switch sequencer coupled to each of the comparators and configured to provide control signals to control switches coupled to the primary switch enabling one control switch to be active at a time. Each control switch provides a voltage increase to a respective load of the plurality of loads if enabled.

    摘要翻译： 一方面，电路包括多个比较器。 每个比较器被配置为从多个负载的对应负载接收第一输入并且接收作为调节电压的第二输入。 电路还包括放大器，其被配置为接收由多个比较器提供的信号;脉宽调制（PWM）电路，被配置为从放大器接收控制信号，并向初级开关提供信号以控制提供给 负载和输出开关顺序发生器，其耦合到每个比较器并且被配置为提供控制信号以控制耦合到主开关的开关，使得一个控制开关一次有效。 如果启用，每个控制开关为多个负载的相应负载提供电压增加。

    Current sensor
    5.
    发明授权
    Current sensor 有权
    电流传感器

    公开(公告)号：US07075287B1

    公开(公告)日：2006-07-11

    申请号：US11336602

    申请日：2006-01-20

    申请人： Vijay Mangtani ,  Michael C. Doogue ,  William P. Taylor

    发明人： Vijay Mangtani ,  Michael C. Doogue ,  William P. Taylor

    IPC分类号： G01R33/00

    CPC分类号： G01R15/202 ,  G01R1/36 ,  G01R15/207 ,  H01L24/37 ,  H01L24/40 ,  H01L2224/37147 ,  H01L2224/40095 ,  H01L2224/40245 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/73221 ,  H01L2224/84801 ,  H01L2224/8485 ,  H01L2924/01322 ,  H01L2924/1306 ,  H01L2924/14 ,  H01L2924/181 ,  H01L2924/00014 ,  H01L2924/00 ,  H01L2924/00012

    摘要： An integrated circuit current sensor includes a lead frame having at least two leads coupled to provide a current conductor portion, and a substrate having a first surface in which is disposed one or more magnetic field sensing elements, with the first surface being proximate to the current conductor portion and a second surface distal from the current conductor portion. In one particular embodiment, the substrate is disposed having the first surface of the substrate above the current conductor portion and the second surface of the substrate above the first surface. In this particular embodiment, the substrate is oriented upside-down in the integrated circuit in a flip-chap arrangement. The integrated circuit includes an overcurrent circuit responsive to a voltage drop generated by a current.

    摘要翻译： 集成电路电流传感器包括具有耦合以提供电流导体部分的至少两个引线的引线框架，以及具有第一表面的基板，其中设置有一个或多个磁场感测元件，其中第一表面接近电流 导体部分和远离电流导体部分的第二表面。 在一个具体实施例中，衬底被布置成具有衬底的第一表面在电流导体部分上方，衬底的第二表面在第一表面之上。 在该特定实施例中，衬底在倒装芯片布置中在集成电路中上下颠倒。 集成电路包括响应于由电流产生的电压降的过电流电路。

    Electronic Circuits and Techniques for Maintaining a Consistent Power Delivered to a Load
    7.
    发明申请
    Electronic Circuits and Techniques for Maintaining a Consistent Power Delivered to a Load 有权
    用于维持传递给负载的一致功率的电子电路和技术

    公开(公告)号：US20130009556A1

    公开(公告)日：2013-01-10

    申请号：US13177075

    申请日：2011-07-06

    申请人： Gregory Szczeszynski ,  Vijay Mangtani

    发明人： Gregory Szczeszynski ,  Vijay Mangtani

    IPC分类号： H05B37/02 ,  G05F1/618

    CPC分类号： H05B33/0815 ,  H03K7/08 ,  H05B33/0827

    摘要： Circuits and methods used therein provide an adjustable average current through a load in accordance with a pulse width modulated (PWM) signal. A condition detection circuit is configured to identify a condition of the electronic circuit and to generate a condition signal indicative of the condition. A current extension circuit is coupled receive the condition signal and coupled to receive the PWM signal. The current extension circuit is configured to generate, at the output node of the current extension circuit, an extended PWM signal having a first state and a second state. The first state of the extended PWM signal longer in time than a first state of the PWM signal by an amount related to a value or a state of the condition signal. Current pulses through the load are extended to be longer in accordance with the extended PWM signal.

    摘要翻译： 其中使用的电路和方法根据脉宽调制（PWM）信号提供通过负载的可调平均电流。 条件检测电路被配置为识别电子电路的状况并产生指示条件的条件信号。 电流扩展电路被耦合以接收条件信号并被耦合以接收PWM信号。 当前扩展电路被配置为在当前扩展电路的输出节点处产生具有第一状态和第二状态的扩展PWM信号。 扩展PWM信号的第一状态在时间上比PWM信号的第一状态长一个与条件信号的值或状态相关的量。 根据扩展的PWM信号，通过负载的电流脉冲扩展到更长。

    ELECTRONIC CIRCUIT FOR DRIVING A DIODE LOAD
    9.
    发明申请
    ELECTRONIC CIRCUIT FOR DRIVING A DIODE LOAD 有权
    用于驱动二极管负载的电子电路

    公开(公告)号：US20100072922A1

    公开(公告)日：2010-03-25

    申请号：US12629374

    申请日：2009-12-02

    申请人： Gregory Szczeszynski ,  Shashank Wekhande ,  Vijay Mangtani

    发明人： Gregory Szczeszynski ,  Shashank Wekhande ,  Vijay Mangtani

    IPC分类号： H05B41/36

    CPC分类号： G05F1/46

    摘要： An electronic circuit includes circuit portions for identifying a largest voltage drop through one of a plurality of series connected diode strings and for controlling a boost switching regulator according to the largest voltage drop. The electronic circuit can sense an open circuit series connected diode string, which would otherwise have the largest voltage drop, and can disconnect that open circuit series connected diode string from control of the boost switching regulator. Another electronic circuit includes a current limiting circuit coupled to or within a boost switching regulator and configured to operate with a diode load. Another electronic circuit includes a pulse width modulation circuit configured to dim a series connected string of light emitting diodes.

    摘要翻译： 电子电路包括用于识别通过多个串联连接的二极管串中的一个的最大电压降的电路部分，并且用于根据最大电压降来控制升压开关调节器。 电子电路可以感测开路串联的二极管串，否则其将具有最大的电压降，并且可以断开该开路串联连接的二极管串与升压开关调节器的控制。 另一个电子电路包括耦合到升压开关调节器中或其内的限流电路，并配置为在二极管负载下工作。 另一个电子电路包括一个脉冲宽度调制电路，配置成调光串联的发光二极管串。