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    Power factor correction
    2.
    发明授权
    Power factor correction 有权
    功率因数校正

    公开(公告)号：US09263938B2

    公开(公告)日：2016-02-16

    申请号：US14114202

    申请日：2012-04-27

    申请人： Jamie Kelly ,  Deepak Makwana

    发明人： Jamie Kelly ,  Deepak Makwana

    IPC分类号： H02M1/42 ,  H05B37/02 ,  H02M1/00

    CPC分类号： H02M1/42 ,  H02M1/4225 ,  H02M2001/0022 ,  H05B37/02 ,  Y02B70/126

    摘要： A power factor correction circuit includes an inductor L1, a diode D1, a switch Q3 and a controller 24. An input voltage Vin is applied to the inductor L1 which is cyclically discharged through the diode D1 by the operation of the switch Q3. The method of operation includes: operating a controller 24 to obtain an indication of the voltage across the switch Q3, monitoring the indication of the voltage across the switch Q3 to determine when the inductor L1 reaches a discharged state in response to the switch being in an off state, and the switch Q3 being controlled by the controller 24 to vary the on period of the switch Q3, during which the inductor is charged, for adjusting an output voltage Vbus towards a target value Vbus—target. The controller 24 monitors at least one of the indication of the voltage across the switch Q3 and the ratio of the switch on period Ton to the switch off period Toff for detecting that the input voltage Vin has a low value.

    摘要翻译： 功率因数校正电路包括电感器L1，二极管D1，开关Q3和控制器24.输入电压Vin被施加到通过开关Q3的操作通过二极管D1循环放电的电感器L1。 操作方法包括：操作控制器24以获得开关Q3两端的电压的指示，监测开关Q3两端的电压的指示，以确定电感器L1何时响应于开关处于放电状态而达到放电状态 关闭状态，并且开关Q3由控制器24控制，以改变电感器充电期间的开关Q3的导通周期，用于将输出电压Vbus调整到目标值Vbus-target。 控制器24监视开关Q3两端的电压的指示和开关导通周期Ton与断开时段Toff之间的比值中的至少一个，用于检测输入电压Vin具有低值。

    METHOD AND CIRCUIT FOR POWER FACTOR CORRECTION
    3.
    发明申请
    METHOD AND CIRCUIT FOR POWER FACTOR CORRECTION 有权
    功率因数校正的方法和电路

    公开(公告)号：US20120133285A1

    公开(公告)日：2012-05-31

    申请号：US13384117

    申请日：2010-07-07

    申请人： Jamie Kelly

    发明人： Jamie Kelly

    IPC分类号： H05B37/02 ,  H05B37/00 ,  G05F1/70

    CPC分类号： H02M1/4225 ,  H02M3/156 ,  H02M2001/0009 ,  Y02B70/126

    摘要： A method and circuit for correcting a power factor in an alternating current/direct current power transformer. The circuit has an inductance fed by a rectified AC voltage, and a switch by which the inductance can be charged and discharged by closing and opening the switch, and further has a diode by which the discharge current of the inductance is fed to the output of the circuit. During the discharge phase, a voltage Vmon corresponding to the output voltage VBUS is measured, and the measured values are stored. It is further determined when the discharge current reaches or crosses the zero line at the end of a discharge phase. Switch-on and switch-off signals for actuating the switch are generated by analyzing the information determined. The switch should not be switched on again until a particular minimum switch-off time has been reached.

    摘要翻译： 一种校正交流/直流电力变压器功率因数的方法和电路。 该电路具有由整流的AC电压馈送的电感，以及通过闭合和断开开关可以对电感进行充电和放电的开关，并且还具有二极管，通过该二极管将电感的放电电流馈送到 电路。 在放电阶段期间，测量对应于输出电压VBUS的电压Vmon，并存储测量值。 进一步确定放电电流何时在放电阶段结束时到达或跨越零线。 通过分析确定的信息产生用于启动开关的接通和关闭信号。 在达到特定的最小关闭时间之前，不应再次打开开关。

    POWER FACTOR CORRECTION
    4.
    发明申请
    POWER FACTOR CORRECTION 有权
    功率因数校正

    公开(公告)号：US20140049181A1

    公开(公告)日：2014-02-20

    申请号：US14114202

    申请日：2012-04-27

    申请人： Jamie Kelly ,  Deepak Makwana

    发明人： Jamie Kelly ,  Deepak Makwana

    IPC分类号： H02M1/42 ,  H05B37/02

    CPC分类号： H02M1/42 ,  H02M1/4225 ,  H02M2001/0022 ,  H05B37/02 ,  Y02B70/126

    摘要： A power factor correction circuit includes an inductor L1, a diode D1, a switch Q3 and a controller 24. An input voltage Vin is applied to the inductor L1 which is cyclically discharged through the diode D1 by the operation of the switch Q3. The method of operation includes: operating a controller 24 to obtain an indication of the voltage across the switch Q3, monitoring the indication of the voltage across the switch Q3 to determine when the inductor L1 reaches a discharged state in response to the switch being in an off state, and the switch Q3 being controlled by the controller 24 to vary the on period of the switch Q3, during which the inductor is charged, for adjusting an output voltage Vbus towards a target value Vbus—target. The controller 24 monitors at least one of the indication of the voltage across the switch Q3 and the ratio of the switch on period Ton to the switch off period Toff for detecting that the input voltage Vin has a low value.

    摘要翻译： 功率因数校正电路包括电感器L1，二极管D1，开关Q3和控制器24.输入电压Vin被施加到通过开关Q3的操作通过二极管D1循环放电的电感器L1。 操作方法包括：操作控制器24以获得开关Q3两端的电压的指示，监测开关Q3两端的电压的指示，以确定电感器L1何时响应于开关处于放电状态而达到放电状态 关闭状态，并且开关Q3由控制器24控制，以改变电感器充电期间的开关Q3的导通周期，用于将输出电压Vbus调整到目标值Vbus-target。 控制器24监视开关Q3两端的电压的指示和开关导通周期Ton与断开时段Toff之间的比值中的至少一个，用于检测输入电压Vin具有低值。

    Power factor correction
    5.
    发明授权
    Power factor correction 有权
    功率因数校正

    公开(公告)号：US09362817B2

    公开(公告)日：2016-06-07

    申请号：US14114217

    申请日：2012-04-27

    申请人： Jamie Kelly ,  Deepak Makwana ,  Kevin McDermott ,  Paul Dalby ,  Wayne Bell

    发明人： Jamie Kelly ,  Deepak Makwana ,  Kevin McDermott ,  Paul Dalby ,  Wayne Bell

    IPC分类号： H02M1/12 ,  H02M1/42 ,  H02M1/00

    CPC分类号： H02M1/4225 ,  H02M2001/0003 ,  Y02B70/126

    摘要： A power factor correction circuit includes an inductor L1, a diode D1, a switch Q3 and a controller 24. An input voltage Vin is applied to the inductor L1 which is cyclically discharged through the diode D1 by the operation of the switch Q3. The switch Q3 is controlled by the controller 24 which varies the on period of the switch Q3, during which the inductor is charged, for adjusting an output voltage Vbus towards a target value Vbus_target. The method includes obtaining an indication of the inductor L1 reaching a discharged state in response to the switch being in an off state. The controller 24 monitors at least one of the switch on period Ton and the switch off period Toff to identify when the input voltage Vin is an alternating voltage AC input, and when it is likely to be a non-alternating voltage DC input. When a non alternating voltage is detected, steps may be taken to reduce interference.

    摘要翻译： 功率因数校正电路包括电感器L1，二极管D1，开关Q3和控制器24.输入电压Vin被施加到通过开关Q3的操作通过二极管D1循环放电的电感器L1。 开关Q3由控制器24控制，控制器24改变电感器充电的开关Q3的导通周期，用于将输出电压Vbus调整到目标值Vbus_target。 该方法包括响应于该开关处于断开状态而获得达到放电状态的电感器L1的指示。 控制器24监视开关导通周期Ton和关断周期Toff中的至少一个，以识别输入电压Vin何时为交流电压AC输入，何时可能是非交流电压DC输入。 当检测到非交流电压时，可采取步骤来减少干扰。

    Method, operating device, and lighting system
    6.
    发明授权
    Method, operating device, and lighting system 有权
    方法，操作装置和照明系统

    公开(公告)号：US08742690B2

    公开(公告)日：2014-06-03

    申请号：US13143907

    申请日：2010-01-07

    申请人： Chong Ng ,  Paul Dalby ,  Jamie Kelly

    发明人： Chong Ng ,  Paul Dalby ,  Jamie Kelly

    IPC分类号： H05B37/02

    CPC分类号： H05B41/285 ,  Y02B20/183

    摘要： The application relates to a circuit for operating a light-emitting means, having a half-bridge or full-bridge circuit for providing a supply voltage for the at least one light-emitting means, and a control circuit for the closed-loop control of the operation of the light-emitting means and/or fault identification. A measurement signal which represents the current through the bridge circuit and/or a measurement signal which represents the lamp current and a measurement signal which represents the voltage across the at least one light-emitting means are supplied to the control circuit at the same input.

    摘要翻译： 本申请涉及一种用于操作发光装置的电路，具有用于提供至少一个发光装置的电源电压的半桥或全桥电路，以及用于闭环控制的控制电路 发光装置的操作和/或故障识别。 表示通过桥接电路的电流和/或表示灯电流的测量信号的测量信号和表示至少一个发光装置两端的电压的测量信号在相同的输入端被提供给控制电路。

    POWER FACTOR CORRECTION
    7.
    发明申请
    POWER FACTOR CORRECTION 有权
    功率因数校正

    公开(公告)号：US20140049993A1

    公开(公告)日：2014-02-20

    申请号：US14114217

    申请日：2012-04-27

    申请人： Jamie Kelly ,  Deepak Makwana ,  Kevin McDermott ,  Paul Dalby ,  Wayne Bell

    发明人： Jamie Kelly ,  Deepak Makwana ,  Kevin McDermott ,  Paul Dalby ,  Wayne Bell

    IPC分类号： H02M1/42

    CPC分类号： H02M1/4225 ,  H02M2001/0003 ,  Y02B70/126

    摘要： A power factor correction circuit includes an inductor L1, a diode D1, a switch Q3 and a controller 24. An input voltage Vin is applied to the inductor L1 which is cyclically discharged through the diode D1 by the operation of the switch Q3. The switch Q3 is controlled by the controller 24 which varies the on period of the switch Q3, during which the inductor is charged, for adjusting an output voltage Vbus towards a target value Vbus—target. The method includes obtaining an indication of the inductor L1 reaching a discharged state in response to the switch being in an off state. The controller 24 monitors at least one of the switch on period Ton and the switch off period Toff to identify when the input voltage Vin is an alternating voltage AC input, and when it is likely to be a non-alternating voltage DC input. When a non alternating voltage is detected, steps may be taken to reduce interference.

    摘要翻译： 功率因数校正电路包括电感器L1，二极管D1，开关Q3和控制器24.输入电压Vin被施加到通过开关Q3的操作通过二极管D1循环放电的电感器L1。 开关Q3由控制器24控制，控制器24改变电感器充电的开关Q3的导通周期，用于将输出电压Vbus调整到目标值Vbus-target。 该方法包括响应于该开关处于断开状态而获得达到放电状态的电感器L1的指示。 控制器24监视开关导通周期Ton和关断周期Toff中的至少一个，以识别输入电压Vin何时为交流电压AC输入，何时可能是非交流电压DC输入。 当检测到非交流电压时，可采取步骤来减少干扰。

    Method and circuit for power factor correction
    9.
    发明授权
    Method and circuit for power factor correction 有权
    功率因数校正方法与电路

    公开(公告)号：US09166470B2

    公开(公告)日：2015-10-20

    申请号：US13384117

    申请日：2010-07-07

    申请人： Jamie Kelly

    发明人： Jamie Kelly

    IPC分类号： H05B37/00 ,  H02M1/42 ,  H02M3/156 ,  H02M1/00

    CPC分类号： H02M1/4225 ,  H02M3/156 ,  H02M2001/0009 ,  Y02B70/126

    摘要： A method and circuit for correcting a power factor in an alternating current/direct current power transformer. The circuit has an inductor fed by a rectified AC voltage, and a switch by which the inductor can be charged and discharged by closing and opening the switch, and further has a diode by which the discharge current of the inductor is fed to the output of the circuit. During the discharge phase, a voltage corresponding to the output voltage is measured, and the measured values are stored. It is further determined when the discharge current reaches or crosses the zero line at the end of a discharge phase. Switch-on and switch-off signals for actuating the switch are generated by analyzing the information determined. The switch should not be switched on again until a particular minimum switch-off time has been reached.

    摘要翻译： 一种校正交流/直流电力变压器功率因数的方法和电路。 该电路具有由整流的交流电压馈送的电感器，以及通过关闭和断开开关使电感器能够被充电和放电的开关，并且还具有二极管，通过该二极管将电感器的放电电流馈送到 电路。 在放电阶段期间，测量与输出电压对应的电压，并存储测量值。 进一步确定放电电流何时在放电阶段结束时到达或跨越零线。 通过分析确定的信息产生用于启动开关的接通和关闭信号。 在达到特定的最小关闭时间之前，不应再次打开开关。

    Method, operating device, and lighting system
    10.
    发明申请
    Method, operating device, and lighting system 有权
    方法，操作装置和照明系统

    公开(公告)号：US20110304272A1

    公开(公告)日：2011-12-15

    申请号：US13143907

    申请日：2010-01-07

    申请人： Chong Ng ,  Paul Dalby ,  Jamie Kelly

    发明人： Chong Ng ,  Paul Dalby ,  Jamie Kelly

    IPC分类号： H05B37/02 ,  H05B41/36

    CPC分类号： H05B41/285 ,  Y02B20/183

    摘要： The application relates to a circuit for operating a light-emitting means, having a half-bridge or full-bridge circuit for providing a supply voltage for the at least one light-emitting means, and a control circuit for the closed-loop control of the operation of the light-emitting means and/or fault identification. A measurement signal which represents the current through the bridge circuit and/or a measurement signal which represents the lamp current and a measurement signal which represents the voltage across the at least one light-emitting means are supplied to the control circuit at the same input.

    摘要翻译： 本申请涉及一种用于操作发光装置的电路，具有用于提供至少一个发光装置的电源电压的半桥或全桥电路，以及用于闭环控制的控制电路 发光装置的操作和/或故障识别。 表示通过桥接电路的电流和/或表示灯电流的测量信号的测量信号和表示至少一个发光装置两端的电压的测量信号在相同的输入端被提供给控制电路。