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    SYSTEMS AND METHODS FOR 100 PERCENT DUTY CYCLE IN SWITCHING REGULATORS
    1.
    发明公开
    SYSTEMS AND METHODS FOR 100 PERCENT DUTY CYCLE IN SWITCHING REGULATORS 有权
    SYSTEME UND VERFAHRENFÜR100-PROZENT-ARBEITSZYKLUS BEI SCHALTREGLERN

    公开(公告)号：EP2973971A2

    公开(公告)日：2016-01-20

    申请号：EP14718836.1

    申请日：2014-03-13

    申请人： QUALCOMM INCORPORATED

    发明人： GONCALVES, Ricardo T. ,  STOCKSTAD, Troy ,  RUTKOWSKI, Joseph D.

    IPC分类号： H02M3/155 ,  H02M1/08

    CPC分类号： H02M3/158 ,  H02M1/08 ,  H02M3/155 ,  H02M2001/0003 ,  H02M2001/0045

    摘要： The present disclosure includes systems and methods for 100% duty cycle in switching regulators. A switching regulator circuit includes a ramp generator to produce a ramp signal having a period and a comparator to receive the ramp signal and an error signal, and in accordance therewith, produce a modulation signal. In a first mode of operation, the ramp signal increases to intersect the error signal, and in accordance therewith, changes a state of a switching transistor during each period of the ramp signal. In a second mode of operation, the error signal increase above a maximum value of the ramp signal, and in accordance therewith, the switching transistor is turned on for one or more full periods of the ramp signal.

    摘要翻译： 本公开包括用于开关稳压器中的100％占空比的系统和方法。 开关调节器电路包括斜坡发生器，以产生具有周期的斜坡信号和用于接收斜坡信号的比较器和误差信号，并根据其产生调制信号。 在第一操作模式中，斜坡信号增加以与误差信号相交，因此在斜坡信号的每个周期期间改变开关晶体管的状态。 在第二操作模式中，误差信号增加到斜坡信号的最大值之上，并且根据此，开关晶体管导通一个或多个整个斜坡信号周期。

    ADAPTIVE STABILITY CONTROL FOR A DRIVER CIRCUIT
    6.
    发明公开
    ADAPTIVE STABILITY CONTROL FOR A DRIVER CIRCUIT 审中-公开
    自适应稳定器FÜREINE TREIBERSCHALTUNG

    公开(公告)号：EP3150028A1

    公开(公告)日：2017-04-05

    申请号：EP15727508.2

    申请日：2015-05-18

    申请人： Qualcomm Incorporated

    发明人： PENG, Xinli ,  DHAR, Sandeep Chaman ,  STOCKSTAD, Troy

    IPC分类号： H05B33/08

    CPC分类号： H05B33/0845 ,  H03K3/01 ,  H05B33/0809 ,  H05B33/0884

    摘要： A circuit for driving a load may include a control loop having a response characteristic. A headroom signal indicative of the headroom voltage of the circuit may set one or more parameters of the response characteristic. A load sign indicative of electrical loading on the circuit may further set the response characteristic.

    摘要翻译： 用于驱动负载的电路可以包括具有响应特性的控制回路。 指示电路的净空电压的净空信号可以设置响应特性的一个或多个参数。 指示电路上的电负载的负载符号可进一步设定响应特性。

    CIRCUITS AND METHODS FOR CONTROLLING CURRENT IN A LIGHT EMITTING DIODE ARRAY
    7.
    发明公开
    CIRCUITS AND METHODS FOR CONTROLLING CURRENT IN A LIGHT EMITTING DIODE ARRAY 审中-公开
    电路与法的电力控制在布置中LEDS

    公开(公告)号：EP3103314A1

    公开(公告)日：2016-12-14

    申请号：EP15703440.6

    申请日：2015-02-03

    申请人： Qualcomm Incorporated

    发明人： STOCKSTAD, Troy ,  LIU, Bing ,  RUTKOWSKI, Joseph D.

    IPC分类号： H05B33/08

    CPC分类号： H05B33/0815 ,  H05B33/0845

    摘要： In one embodiment, a circuit comprises a current source to produce current to a light emitting diode array. An analog dimming circuit generates a continuous control signal to the current source to control the current in the light emitting diode array according to a range of control signal values when the control signal is above a threshold. Below the threshold, a digital modulation circuit generates an additional modulated digital signal to the current source to control the current in the light emitting diode array according to a range of modulation values when the continuous control signal is below the threshold. The continuous control signal produces current from the current source into the light emitting diode array above a first value. The combination of the continuous control signal and the modulated digital signal produces current in the light emitting diode array below the first value.