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6 条记录 (耗时 0.176 秒)

    Power factor correction
    1.
    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
    2.
    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
    3.
    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, operating device, and lighting system
    6.
    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。