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    CYCLE-BY-CYCLE PEAK CURRENT LIMITING IN CRRENT MODE BUCK/BOOST CONVERTERS
    1.
    发明申请
    CYCLE-BY-CYCLE PEAK CURRENT LIMITING IN CRRENT MODE BUCK/BOOST CONVERTERS 审中-公开

    公开(公告)号：US20180145593A1

    公开(公告)日：2018-05-24

    申请号：US15822110

    申请日：2017-11-24

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Youhao Xi ,  Eric Wayne Tisinger

    IPC: H02M3/158 ,  H03K5/08 ,  G06F1/26 ,  H02M1/32 ,  H02M3/335 ,  G05F1/24

    CPC classification number: H02M3/1582 ,  G05F1/24 ,  G06F1/26 ,  G06F1/263 ,  H02M1/32 ,  H02M3/156 ,  H02M3/33584 ,  H02M2001/0009 ,  H02M2001/0025 ,  H03K5/086

    Abstract: An SMPS current mode control loop with an adjusted cycle-by-cycle peak current limit for buck and boost (and bidirectional buck/boost) regulators. An SMPS regulator can include a PWM driver to drive switching control signals with a PWM duty cycle to an output terminal OUT, and a PWM controller to control the PWM duty cycle based on a current mode control loop that includes slope compensation to provide a signal VPK corresponding to a current sense signal from a current sense terminal CS, based on sensed peak current through the energy storage element, superimposed with an injected slope compensation current corresponding to a predefined slope compensation based on PWM duty cycle. Adjusted peak limit circuitry generates a signal VLMT corresponding to an adjusted peak current limit based on a pre-defined peak current limit threshold for the energy storage element, including generating a peak limit adjustment current corresponding to the injected slope compensation current, and combining the peak limit adjustment current with the pre-defined peak current limit threshold so that VLMT is substantially constant.

    Method and apparatus for synchronous sine wave dimming of luminaries
    2.
    发明授权
    Method and apparatus for synchronous sine wave dimming of luminaries 有权
    同步正弦波调光的方法和装置

    公开(公告)号：US08941315B2

    公开(公告)日：2015-01-27

    申请号：US13261575

    申请日：2011-07-26

    Applicant: Jack Ivan Jmaev

    Inventor： Jack Ivan Jmaev

    IPC: H05B37/02 ,  G05F1/24 ,  H05B41/38

    CPC classification number: G05F1/24 ,  H05B37/02 ,  H05B37/029 ,  H05B41/38 ,  H05B41/3928 ,  Y02B20/202

    Abstract: A luminary dimming system having a three terminal dimming unit. The dimming unit includes a power controller and a receiver and is responsive to dimming directives received by the receiver. The power controller controls a buck switch and a freewheel switch in a manner that allows reduction of alternating current voltages. Such voltage reduction is accomplished in a manner that preserves the waveform of the source voltage and the power factor exhibited by the luminary.

    Abstract translation: 具有三端调光单元的发光调光系统。 调光单元包括功率控制器和接收器，并且响应于由接收器接收的调光指令。 功率控制器以允许降低交流电压的方式控制降压开关和续流开关。 这样的电压降低以保持源电压的波形和由发光体显示的功率因数的方式来实现。

    METHOD AND APPARATUS FOR SYNCHRONOUS SINE WAVE DIMMING OF LUMINARIES
    3.
    发明申请
    METHOD AND APPARATUS FOR SYNCHRONOUS SINE WAVE DIMMING OF LUMINARIES 审中-公开
    方法和装置用于同步波形的波形调制

    公开(公告)号：US20130181634A1

    公开(公告)日：2013-07-18

    申请号：US13261575

    申请日：2011-07-26

    Applicant: Jack Ivan Jmaev

    Inventor： Jack Ivan Jmaev

    IPC: G05F1/24 ,  H05B37/02

    CPC classification number: G05F1/24 ,  H05B37/02 ,  H05B37/029 ,  H05B41/38 ,  H05B41/3928 ,  Y02B20/202

    Abstract: A luminary dimming system having a three terminal dimming unit. The dimming unit includes a power controller and a receiver and is responsive to dimming directives received by the receiver. The power controller controls a buck switch and a freewheel switch in a manner that allows reduction of alternating current voltages. Such voltage reduction is accomplished in a manner that preserves the waveform of the source voltage and the power factor exhibited by the luminary.

    Abstract translation: 具有三端调光单元的发光调光系统。 调光单元包括功率控制器和接收器，并且响应于由接收器接收的调光指令。 功率控制器以允许降低交流电压的方式控制降压开关和续流开关。 这样的电压降低以保持源电压的波形和由发光体显示的功率因数的方式来实现。

    Voltage compensation system
    4.
    发明授权
    Voltage compensation system 失效
    电压补偿系统

    公开(公告)号：US5883503A

    公开(公告)日：1999-03-16

    申请号：US869838

    申请日：1997-06-05

    Applicant: Melvin A. Lace

    Inventor： Melvin A. Lace

    IPC: G05F1/24

    CPC classification number: G05F1/24

    Abstract: A voltage compensation system for an A.C. power line supplying one or more air conditioners, a telephone system or other telecommunication system, a battery charger, or some other utilization system that should have an input voltage within a given normal range. The voltage compensation system includes a transformer unit containing a transformer having at least two windings coupled electromagnetically by a transformer core; one of those windings preferably is in two segments that are connectable in series or in parallel. One winding is connected to an input terminal and to an output terminal. The other winding adds to the A.C. line voltage when the line voltage drops below a low voltage threshold and/or subtracts from the line voltage when the A.C. line voltage exceeds a high voltage threshold. If the A.C. line voltage is in the range required by the utilization system, the other transformer winding is effectively shorted out or otherwise disconnected. In automated versions, a line voltage sensor actuates a switching circuit to effect the desired compensation action. The voltage compensation system may handle under-voltage conditions, over-voltage conditions, or both. For chronic under-voltage or over-voltage conditions, direct winding connections may be employed instead of relays.

    Abstract translation: 供应一个或多个空调，电话系统或其他电信系统，电池充电器或应当具有在给定正常范围内的输入电压的一些其他利用系统的交流电力线路的电压补偿系统。 所述电压补偿系统包括：变压器单元，其包含变压器，所述变压器具有由变压器铁芯电磁耦合的至少两个绕组; 这些绕组中的一个优选地处于可串联或并联连接的两个段中。 一个绕组连接到输入端子和输出端子。 当线路电压低于低电压阈值时，另一个线圈增加了交流线路电压，和/或当交流线路电压超过高电压阈值时从线路电压减去。 如果交流线路电压在使用系统所需的范围内，则其他变压器绕组有效地短路或以其他方式断开。 在自动版本中，线路电压传感器启动开关电路以实现所需的补偿动作。 电压补偿系统可以处理欠电压条件，过压条件或两者兼有。 对于慢性欠电压或过电压条件，可以采用直接绕组连接而不是继电器。

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