公开(公告)号：US09496844B1

公开(公告)日：2016-11-15

申请号：US14102135

申请日：2013-12-10

申请人： KONINKLIJKE PHILIPS N.V.

发明人： Michael A. Kost ,  Eric J. King

IPC分类号： H03H7/19 ,  H05B33/08 ,  H05B37/02

CPC分类号： H05B37/02 ,  H03H17/0294 ,  H03H2017/0297 ,  H05B33/0815 ,  H05B33/0854

摘要： In accordance with systems and methods of the present disclosure, an apparatus may include a variable bandwidth filter having an input for receiving an input signal and an output for receiving an output signal, wherein the output signal is generated by filtering the input signal in conformity with a variable bandwidth of the variable bandwidth filter and the variable bandwidth is set based on an integrated error between the input signal and the output signal.

摘要翻译： 根据本公开的系统和方法，装置可以包括具有用于接收输入信号的输入和用于接收输出信号的输出的可变带宽滤波器，其中通过对输入信号进行滤波来生成输出信号， 基于输入信号和输出信号之间的积分误差来设定可变带宽滤波器的可变带宽和可变带宽。

公开(公告)号：US09385598B2

公开(公告)日：2016-07-05

申请号：US14303068

申请日：2014-06-12

申请人： KONINKLIJKE PHILIPS N.V.

发明人： Kan Wang ,  Michael A. Kost ,  Eric J. King ,  John L. Melanson ,  James P. McFarland

IPC分类号： H02M3/156 ,  H05B33/08

CPC分类号： H02M3/156 ,  H05B33/0815 ,  Y02B20/346

摘要： A low voltage lamp includes a boost converter stage and a load. The load may include low voltage light producing elements including low voltage light emitting diodes. The boost converter stage receives an electronic transformer output and includes an inductor coupled to a switch and a switch controller that receives one or more controller inputs. Inductor current may be returned to the transformer when the switch is closed and provided to a rectifier coupled to the load when the switch is open. Controller inputs may include a transformer input that receives the transformer output, a sense input indicating switch current, and a load input indicating load voltage. Controller logic may synchronize assertions of a control signal for the switch with edge transitions of the transformer output to maintain peak inductor current within a specified range and to selectively transfer stored energy in the inductor to the load or back to the transformer.

摘要翻译： 低压灯包括升压转换器级和负载。 负载可以包括低电压发光元件，包括低电压发光二极管。 升压转换器级接收电子变压器输出并且包括耦合到开关的电感器和接收一个或多个控制器输入的开关控制器。 当开关关闭时，电感电流可以返回到变压器，当开关打开时，电感电流提供给耦合到负载的整流器。 控制器输入可以包括接收变压器输出的变压器输入，指示开关电流的感测输入和指示负载电压的负载输入。 控制器逻辑可以使开关的控制信号的断言与变压器输出的边沿跃迁同步，以将峰值电感器电流保持在指定范围内，并有选择地将存储在电感器中的能量转移到负载或返回到变压器。

公开(公告)号：US09577538B2

公开(公告)日：2017-02-21

申请号：US14701946

申请日：2015-05-01

申请人： KONINKLIJKE PHILIPS N.V.

发明人： Yanhui Xie ,  Michael A. Kost ,  John L. Melanson ,  Zhaohui He ,  Chris M. Franklin

IPC分类号： H05B37/02 ,  H02M3/335 ,  H05B33/08

CPC分类号： H02M3/33507 ,  H05B33/08 ,  H05B33/0815 ,  Y02B20/346

摘要： A power distribution system includes controller of a switching power converter to control the switching power converter and determine one or more switching power converter control parameters. In at least one embodiment, the switching power converter utilizes a transformer to transfer energy from a primary-side of the transformer to a secondary-side of the transformer. In at least one embodiment, the switching power converter control parameters includes a secondary-side conduction time delay that represents a time delay between when the primary-side ceases conducting a primary-side current and the secondary-side begins to conduct a secondary-side current. In at least one embodiment, determining and accounting for this secondary-side conduction time delay increases the prediction accuracy of the secondary-side current value and accurate delivery of energy to a load when the controller does not directly sense the secondary-side current provided to the load.

摘要翻译： 配电系统包括开关电源转换器的控制器，以控制开关功率转换器并确定一个或多个开关功率转换器控制参数。 在至少一个实施例中，开关功率转换器利用变压器将能量从变压器的初级侧传递到变压器的次级侧。 在至少一个实施例中，开关功率转换器控制参数包括次级侧导通时间延迟，其表示在初级侧停止进行初级侧电流和次级侧之间的时间延迟开始进行二次侧 当前。 在至少一个实施例中，确定和计算该次级侧导通时间延迟增加了次级侧电流值的预测精度，并且当控制器不直接感测提供给 负载。

公开(公告)号：US09385621B2

公开(公告)日：2016-07-05

申请号：US14276535

申请日：2014-05-13

申请人： KONINKLIJKE PHILIPS N.V.

发明人： Michael A. Kost ,  Eric J. King ,  John L. Melanson ,  Kan Wang ,  Ramin Zanbaghi

IPC分类号： H05B33/08 ,  H02M5/458

CPC分类号： H02M5/458 ,  H05B33/0815 ,  H05B33/0887

摘要： An electronic transformer stabilization circuit includes a detection circuit and a reactive load. The detection circuit may be configured to receive a transformer output or a transformer signal derived from the transformer output. The detection circuit may determine whether the transformer that generated the transformer output is an electronic transformer. The determination may be made based on the presence of absence of high frequency components in the transformer output. Responsive to determining that an electronic transformer generated the transformer output, the stabilization circuit may operate a switch to connect the reactive load across an output of the transformer. The reactive load may include an inductor and may be configured to draw a stabilization current from the transformer. The stabilization current may ensure that the total current drawn from the transformer exceeds an oscillation current required to maintain reliable operation of the electronic transformer.

摘要翻译： 电子变压器稳定电路包括检测电路和无功负载。 检测电路可以被配置为接收从变压器输出导出的变压器输出或变压器信号。 检测电路可以确定产生变压器输出的变压器是电子变压器。 可以基于变压器输出中是否存在高频分量进行确定。 响应于确定电子变压器产生变压器输出，稳定电路可以操作开关以连接变压器输出端上的无功负载。 无功负载可以包括电感器，并且可以被配置成从变压器抽出稳定电流。 稳定电流可以确保从变压器抽出的总电流超过维持电子变压器可靠运行所需的振荡电流。