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公开(公告)号：US09385598B2
公开(公告)日：2016-07-05
申请号：US14303068
申请日：2014-06-12
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。
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公开(公告)号：US09532415B2
公开(公告)日：2016-12-27
申请号：US14477297
申请日：2014-09-04
发明人： Eric J. King , John L. Melanson
CPC分类号： H05B33/0815 , H05B37/02 , H05B39/044 , Y10S315/04
摘要： A system and method includes a controller that is configured to coordinate (i) a low impedance path for a dimmer current, (ii) attaching a dimmer to a power converter system at the leading edge of a phase-cut, rectified input voltage, (iii), control of switch mode power conversion, and (iv) an inactive state to, for example, reduce the dimmer current while allowing a dimmer to function normally from cycle to cycle of an alternating current (AC) supply voltage. In at least one embodiment, the dimmer functions normally when the dimmer conducts at a correct phase angle indicated by a dimmer input setting and avoids prematurely resetting while conducting. In at least one embodiment, by coordinating functions (i), (ii), (iii), and (iv) the controller controls a power converter system that is compatible with a triac-based dimmer.
摘要翻译： 一种系统和方法包括控制器，其被配置为协调（i）用于调光器电流的低阻抗路径，（ii）在相切割整流的输入电压的前沿将调光器附接到功率转换器系统（ iii），开关模式功率转换的控制，以及（iv）非活动状态，例如降低调光器电流，同时允许调光器从交流（AC）电源电压的周期到周期正常工作。 在至少一个实施例中，当调光器以由调光器输入设置指示的正确相位角传导时，调光器正常工作，并避免在导通时过早复位。 在至少一个实施例中，通过协调功能（i），（ii），（iii）和（iv），控制器控制与基于三端双向可控硅的调光器兼容的功率转换器系统。
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公开(公告)号：US09496844B1
公开(公告)日：2016-11-15
申请号：US14102135
申请日：2013-12-10
发明人： Michael A. Kost , Eric J. King
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。
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公开(公告)号：US09341358B2
公开(公告)日：2016-05-17
申请号：US13903632
申请日：2013-05-28
发明人： Eric J. King , Daniel J. Baker , John L. Melanson
CPC分类号： F21V23/02 , H05B33/0815
摘要： In accordance with systems and methods of the present disclosure, an apparatus may include a power converter and a controller. The controller may be configured to monitor a voltage at an input of the power converter, cause the power controller to transfer energy from the input to a load at a target current, decrease the target current responsive to determining that the voltage is less than or equal to an undervoltage threshold, and increase the target current responsive to determining that the voltage is greater than or equal to a maximum threshold voltage.
摘要翻译： 根据本公开的系统和方法，装置可以包括功率转换器和控制器。 控制器可以被配置为监视功率转换器的输入处的电压，使得功率控制器将能量从输入传递到目标电流的负载，响应于确定电压小于或等于 响应于确定电压大于或等于最大阈值电压而增加目标电流。
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公开(公告)号：US09521711B2
公开(公告)日：2016-12-13
申请号：US14166211
申请日：2014-01-28
发明人： John L. Melanson , Eric J. King
CPC分类号： H05B33/0845 , H05B33/0803 , H05B33/0809 , H05B33/0815 , H05B37/02 , H05B39/04
摘要： In accordance with embodiments of the present disclosure, a method and apparatus may include receiving an input waveform from a dimmer, wherein the input waveform is periodic at a first frequency. The method and apparatus may also include generating an output waveform independent of a load coupled to the output waveform, wherein the output waveform is periodic at a second frequency substantially greater than the first frequency, wherein at least one of the second frequency and an amplitude of the output waveform is based on a phase-cut angle of the input waveform indicative of a control setting of the dimmer.
摘要翻译： 根据本公开的实施例，方法和装置可以包括从调光器接收输入波形，其中输入波形是以第一频率周期性的。 所述方法和装置还可以包括生成独立于耦合到输出波形的负载的输出波形，其中输出波形在基本上大于第一频率的第二频率周期性地，其中第二频率和幅度中的至少一个 输出波形基于表示调光器的控制设置的输入波形的相位角。
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公开(公告)号：US09385621B2
公开(公告)日：2016-07-05
申请号：US14276535
申请日：2014-05-13
发明人： Michael A. Kost , Eric J. King , John L. Melanson , Kan Wang , Ramin Zanbaghi
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。
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