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61. 发明授权

US06861968B2 Signal processing system with baseband noise modulation and noise filtering 有权
标题翻译：具有基带噪声调制和噪声滤波的信号处理系统
公开(公告)号：US06861968B2
公开(公告)日：2005-03-01
申请号：US10668397
申请日：2003-09-23
申请人： John L. Melanson , Stephen T. Hodapp , Giri N. K. Rangan
发明人： John L. Melanson , Stephen T. Hodapp , Giri N. K. Rangan
IPC分类号： H03M1/66 , H03M3/00 , H03M3/04 , H03M7/36
CPC分类号： H03M7/3006 , H03M3/344 , H03M3/50 , H03M7/3026
摘要： A digital-to-analog converter (“DAC”) system utilizes notch filters and chopping modulation technology to remove l/f and other baseband noise from a baseband of a signal of interest. Chopping modulation and demodulation circuitry of the DAC operate at a chopping frequency and all harmonics equal to approximately one-half of a digital input signal sampling frequency. A notch filter attenuates signals having frequencies around the chopping frequency prior to chopping to reduce fold back of noise into the baseband due to parasitic modulation. Another notch filter attenuating signals having frequencies around twice the chopping frequency further reduces fold back of noise into the baseband.
摘要翻译：数模转换器（“DAC”）系统利用陷波滤波器和斩波调制技术从感兴趣信号的基带去除l / f和其他基带噪声。 DAC的斩波调制和解调电路工作在斩波频率，所有谐波等于数字输入信号采样频率的大约一半。陷波滤波器在斩波之前衰减具有围绕斩波频率的频率的信号，以减少由于寄生调制而将噪声折回到基带。衰减具有大约斩波频率两倍的频率的信号的另一个陷波滤波器进一步降低了噪声向基带的折回。

62. 发明授权

US06693571B2 Modulation of a digital input signal using a digital signal modulator and signal splitting 有权
标题翻译：使用数字信号调制器和信号分离调制数字输入信号
公开(公告)号：US06693571B2
公开(公告)日：2004-02-17
申请号：US10325145
申请日：2002-12-20
申请人： John L. Melanson , Jack B. Andersen , Michael G. Chorn
发明人： John L. Melanson , Jack B. Andersen , Michael G. Chorn
IPC分类号： H03M300
CPC分类号： H02M3/1584 , H02M3/157 , H03F3/2173 , H03F2200/331 , H03K7/08
摘要： A digital signal modulator modulates a digital input signal to drive a load, such as an opposed current amplifier or other opposed current converter. The combinations of frequency relationships and digital signal modulator elements provide significant digital signal processing capabilities and flexible output signal timing. In one embodiment, a digital signal modulator modulates a digital input signal. Even and odd samples of the input signal propagate along two respective channels (signal paths), which include further digital processing capabilities, such as pulse width modulation, to generate output signals appropriate for the topology of a load. Additionally, a bias signal may be modulated with the digital input signal. By utilizing digital signal processing to modulate the input signal, various processing technologies are applied to the input signal. For example, noise shaping may be implemented using a delta-sigma modulator as an input stage to the two channels.
摘要翻译：数字信号调制器调制数字输入信号以驱动负载，例如相对的电流放大器或其它相对的电流转换器。频率关系和数字信号调制器元件的组合提供了显着的数字信号处理能力和灵活的输出信号时序。在一个实施例中，数字信号调制器调制数字输入信号。输入信号的偶数和奇数样本沿着两个相应的通道（信号路径）传播，其包括进一步的数字处理能力，例如脉冲宽度调制，以产生适合负载拓扑的输出信号。另外，可以用数字输入信号调制偏置信号。通过利用数字信号处理来调制输入信号，各种处理技术被应用于输入信号。例如，可以使用Δ-Σ调制器作为两个通道的输入级来实现噪声整形。

63. 发明授权

US5406634A Intelligent speaker unit for speaker system network 失效
标题翻译：用于扬声器系统网络的智能扬声器单元
公开(公告)号：US5406634A
公开(公告)日：1995-04-11
申请号：US33697
申请日：1993-03-16
申请人： Charles W. Anderson , John L. Melanson , Richard C. Zwiebel
发明人： Charles W. Anderson , John L. Melanson , Richard C. Zwiebel
IPC分类号： H04R27/00
CPC分类号： H04R27/00 , H04R2227/003
摘要： An intelligent speaker unit is controlled by control data transmitted with the digital audio data. The intelligent speaker has a Digital Signal Processor (DSP) for processing the audio data in accordance with the control data. The control data contains an address to select the speaker unit. The DSP for the speaker unit processes audio data digitally based on parameters in the control data. The processed digital audio data is then converted to an analog signal which is amplified and applied to the speaker. The digital audio data is time division multiplexed on a TDM bus. Each time slot on the TDM bus contains audio data for one digital audio channel. The control data is placed on the TDM bus as one channel (time slot) or is distributed as control bits through all the other channels. The control data also contains channel select data. Accordingly the DSP in a selected speaker unit may in turn select its audio data from a plurality of audio channels based on the control data the DSP receives. Further, the DSP may mix the selected audio channels by accumulating the audio data from the selected channels. Further, the control data contains audio control data for volume, speaker equalization and sound delay.
摘要翻译：智能扬声器单元由与数字音频数据一起发送的控制数据控制。智能扬声器具有用于根据控制数据处理音频数据的数字信号处理器（DSP）。控制数据包含选择扬声器单元的地址。用于扬声器单元的DSP基于控制数据中的参数以数字方式处理音频数据。然后将经处理的数字音频数据转换成放大并应用于扬声器的模拟信号。数字音频数据在TDM总线上进行时分复用。 TDM总线上的每个时隙都包含一个数字音频通道的音频数据。控制数据作为一个通道（时隙）放置在TDM总线上，或者通过所有其他通道作为控制位分配。控制数据还包含通道选择数据。因此，所选择的扬声器单元中的DSP可以依据DSP接收的控制数据从多个音频通道中选择其音频数据。此外，DSP可以通过累积来自所选频道的音频数据来混合所选择的音频频道。此外，控制数据包含用于音量，扬声器均衡和声音延迟的音频控制数据。

64. 发明授权

US09497850B2 Controlled power dissipation in a lighting system 有权
标题翻译：照明系统中的受控功耗
公开(公告)号：US09497850B2
公开(公告)日：2016-11-15
申请号：US13289931
申请日：2011-11-04
申请人： John L. Melanson , Eric J. King
发明人： John L. Melanson , Eric J. King
IPC分类号： H05B37/02 , H05B39/02 , H05B39/04 , H05B41/36 , H05K1/02 , H05B33/08
CPC分类号： H05K1/0203 , H05B33/08 , H05B33/0809 , H05B33/0812 , H05B33/0815 , H05B33/0818 , H05B33/0824 , H05B33/0827 , H05B33/0845 , H05B33/0851 , H05B33/0854 , H05B37/02 , Y02B20/19 , Y02B20/346 , Y02B20/347
摘要： In at least one embodiment, a lighting system includes one, some, or all of a switch path, link path, and flyback path power dissipation circuits to actively and selectively control power dissipation of excess energy in a switching power converter of the lighting system. The flyback path power dissipation circuit dissipates power through a flyback path of the switching power converter. In at least one embodiment, the lighting system controls power dissipation through the flyback path by controlling a transformer primary current in the flyback path and, for example, limiting the primary current with a current source and dissipating power in the flyback switch and the current source.
摘要翻译：在至少一个实施例中，照明系统包括开关路径，链路路径和反激路径功率耗散电路中的一个，一个或全部，以有源和选择性地控制照明系统的开关功率转换器中的多余能量的功率耗散。反激路径功耗电路通过开关电源转换器的反激路径耗散功率。在至少一个实施例中，照明系统通过控制回扫路径中的变压器初级电流来控制通过回扫路径的功率耗散，并且例如，利用电流源限制初级电流并且在回扫开关和电流源中消耗功率。

65. 发明授权

US09055620B1 Consolidation of lamp power conversion and external communication control 有权
标题翻译：整合灯功率转换和外部通讯控制
公开(公告)号：US09055620B1
公开(公告)日：2015-06-09
申请号：US13354120
申请日：2012-01-19
申请人： Eric J. King , John L. Melanson
发明人： Eric J. King , John L. Melanson
IPC分类号： H05B37/02 , H04B3/54
CPC分类号： H05B37/02 , H04B3/542 , H04B3/544 , H05B37/0263
摘要： A lighting system includes one or more methods and systems to control an input switching stage of a power converter to provide power for a lamp and modulate a line current supplied to the power converter to carry data related to a state of the lamp. In at least one embodiment, a single controller consolidates the functions of controlling an input stage of the power converter and communicating to an external device by modulating the line current supplied to the power converter to carry data related to a state of the lamp. The particular type of current modulation and communication protocol utilized by the consolidated power conversion-communication controller is a matter of design choice. In at least one embodiment, the lamp includes one or more electronic light sources, such as one or more light emitting diodes (LEDs) and/or one or more compact fluorescent lamps (CFLs).
摘要翻译：照明系统包括一个或多个方法和系统，用于控制功率转换器的输入开关级以为灯提供电力并且调制提供给功率转换器的线电流以承载与灯的状态有关的数据。在至少一个实施例中，单个控制器通过调制提供给功率转换器的线路电流来传送与灯的状态相关的数据来整合控制功率转换器的输入级并且与外部设备通信的功能。综合电力转换通信控制器使用的当前调制和通信协议的特定类型是设计选择。在至少一个实施例中，灯包括一个或多个电子光源，诸如一个或多个发光二极管（LED）和/或一个或多个紧凑型荧光灯（CFL）。

66. 发明授权

US08912781B2 Integrated circuit switching power supply controller with selectable buck mode operation 有权
标题翻译：集成电路开关电源控制器，可选择降压模式运行
公开(公告)号：US08912781B2
公开(公告)日：2014-12-16
申请号：US12973003
申请日：2010-12-20
申请人： Rahul Singh , John L. Melanson
发明人： Rahul Singh , John L. Melanson
IPC分类号： H02M3/156 , H02M3/335 , H05B33/08
CPC分类号： H02M3/33507 , H02M3/156 , H05B33/0815 , H05B33/0851 , Y02B20/347
摘要： An integrated circuit (IC) controller for a switching power supply has a selectable operating mode for supporting multiple switching power supply topologies. The IC controls current by controlling a cycle rate of the switching power supply to provide a constant or variable output current, which may be provided to lighting devices such as light-emitting diodes (LEDs). The selectable operating mode includes at least a buck converter operating mode and another operating mode, which may be a flyback converter operating mode.
摘要翻译：用于开关电源的集成电路（IC）控制器具有用于支持多个开关电源拓扑的可选操作模式。 IC通过控制开关电源的周期速率来控制电流，以提供恒定或可变的输出电流，其可以被提供给诸如发光二极管（LED）的照明装置。可选择的操作模式至少包括降压转换器操作模式和另一操作模式，其可以是反激转换器操作模式。

67. 发明授权

US08841894B1 Pulse-width modulated (PWM) audio power amplifier with output transition slope control 有权
标题翻译：脉宽调制（PWM）音频功率放大器，具有输出过渡斜率控制
公开(公告)号：US08841894B1
公开(公告)日：2014-09-23
申请号：US13327934
申请日：2011-12-16
申请人： Shahrzad Naraghi , Johann Gaboriau , John L. Melanson
发明人： Shahrzad Naraghi , Johann Gaboriau , John L. Melanson
IPC分类号： H02M3/155
CPC分类号： H03F3/217 , H02M1/38 , H02M3/1588 , H02M2001/0029 , H03F1/26 , H03F3/181 , Y02B70/1466
摘要： An audio switching power amplifier having an output with controlled-slope transitions maintains efficiency while avoiding uncontrolled non-overlap intervals during switching transitions. A pair of transistors forming a half-bridge that supplies an output signal at an output terminal of the amplifier are operated so that neither transistor is fully on during an overlap time period. A current source provides an output current to the output terminal during the non-overlap time period to control the output voltage while changing the transistor that conducts the output current from a first one of the pair of transistors to a second one of the pair of transistors. The current source may be provided by operation of one of the transistors in a current source configuration. The voltage of a gate of one of the transistors can be compared with a threshold to provide an indication of the current.
摘要翻译：具有受控斜率转换的输出的音频开关功率放大器保持效率，同时在切换转换期间避免不受控制的非重叠间隔。形成在放大器的输出端提供输出信号的半桥的一对晶体管被操作，使得在重叠时间段期间两个晶体管都不会完全导通。电流源在非重叠时间周期期间向输出端提供输出电流，以在改变将输出电流从该对晶体管中的第一晶体管导通到该对晶体管中的第二晶体管的晶体管时控制输出电压。可以通过当前源配置中的晶体管之一的操作来提供电流源。可以将晶体管中的一个的栅极的电压与阈值进行比较以提供电流的指示。

68. 发明授权

US08723438B2 Switch power converter control with spread spectrum based electromagnetic interference reduction 有权
标题翻译：开关电源转换器控制采用基于扩频的电磁干扰降低
公开(公告)号：US08723438B2
公开(公告)日：2014-05-13
申请号：US12781669
申请日：2010-05-17
申请人： John L. Melanson , Michael A. Kost
发明人： John L. Melanson , Michael A. Kost
IPC分类号： H05B37/02
CPC分类号： H03K7/08 , H02M1/4225 , H02M1/44 , Y02B70/126
摘要： Power control systems generate electromagnetic interference (EMI). In at least one embodiment, a power control system includes a switching power converter and a controller that utilizes a spread spectrum strategy to reduce peak EMI values of the power control system. The controller generates a power regulation, switch control signal to control an input voltage to output voltage conversion by the switching power converter. The controller modulates the period of the control signal in accordance with the spread spectrum strategy. The spread spectrum strategy is an intentional plan to spread the spectrum of the control signal to reduce peak EMI values, and, thus, reduce the potential for degradation in performance, a malfunction, or failure of an electronic circuit caused by the EMI. The controller also modulates a pulse width of the switch control signal in response to modulation of the period of the control signal to provide power factor correction.
摘要翻译：电源控制系统产生电磁干扰（EMI）。在至少一个实施例中，功率控制系统包括开关功率转换器和利用扩展频谱策略来降低功率控制系统的峰值EMI值的控制器。控制器产生功率调节，开关控制信号，以控制输入电压，由开关电源转换器输出电压转换。控制器根据扩频策略对控制信号的周期进行调制。扩频策略是扩展控制信号的频谱以降低EMI值的有意图，从而降低由EMI引起的性能下降，故障或电子电路故障的可能性。控制器还响应于控制信号的周期的调制来调制开关控制信号的脉冲宽度，以提供功率因数校正。

69. 发明授权

US08680771B2 Controller customization system with phase cut angle communication customization data encoding 有权
标题翻译：控制器定制系统具有相切角度通信定制数据编码
公开(公告)号：US08680771B2
公开(公告)日：2014-03-25
申请号：US13430554
申请日：2012-03-26
申请人： Robert T. Grisamore , William A. Draper , Eric J. King , Michael A. Kost , John L. Melanson
发明人： Robert T. Grisamore , William A. Draper , Eric J. King , Michael A. Kost , John L. Melanson
IPC分类号： H05B37/02 , H05B39/04 , H05B41/36
CPC分类号： H05B37/0218 , H05B37/0263 , Y02B20/46
摘要： A controller is configured to generate one or more power control signals for a lamp to supply power to the lamp from a supply voltage. The controller is further configured to receive customization data encoded in the supply voltage. Thus, in at least one embodiment, the controller receives the customization data via one or more power terminals of the lamp. Phase cut angles in the supply voltage provided to the controller encode the customization data, and each phase cut angle encodes N symbols of data. N is an integer greater than or equal to one (1). In at least one embodiment, the customization data alters the controller from one state to another state in accordance with data represented by phase cuts in the supply voltage that encode the customization data. Examples of customization data include calibration data and configuration data.
摘要翻译：控制器被配置为产生灯的一个或多个功率控制信号，以从电源电压向灯供电。控制器还被配置为接收以电源电压编码的定制数据。因此，在至少一个实施例中，控制器经由灯的一个或多个电源端子接收定制数据。提供给控制器的电源电压中的相位角对定制数据进行编码，每个相位切角对N个数据符号进行编码。 N是大于或等于1（1）的整数。在至少一个实施例中，定制数据根据由编码定制数据的电源电压中的相位切断表示的数据，将控制器从一种状态改变到另一种状态。定制数据的示例包括校准数据和配置数据。

70. 发明授权

US08610365B2 Switching power converter input voltage approximate zero crossing determination 有权
标题翻译：开关电源转换器输入电压近似过零点确定
公开(公告)号：US08610365B2
公开(公告)日：2013-12-17
申请号：US13290032
申请日：2011-11-04
申请人： Eric J. King , John L. Melanson
发明人： Eric J. King , John L. Melanson
IPC分类号： H05B41/24
CPC分类号： H03K17/13 , H05B33/0815 , H05B33/0845 , Y02B20/346
摘要： In at least one embodiment, the controller senses a leading edge, phase cut AC input voltage value to a switching power converter during a cycle of the AC input voltage. The controller senses the voltage value at a time prior to a zero crossing of the AC input voltage and utilizes the voltage value to determine the approximate zero crossing. In at least one embodiment, by determining an approximate zero crossing of the AC input voltage, the controller is unaffected by any disturbances of the dimmer that could otherwise make detecting the zero crossing problematic. In at least one embodiment, the controller approximates the AC input voltage using a function that estimates a waveform of the AC input voltage and determines the approximate zero crossing of the AC input voltage from the approximation of the AC input voltage.
摘要翻译：在至少一个实施例中，控制器在交流输入电压的周期期间感测到开关功率转换器的前沿，相切割AC输入电压值。控制器感测交流输入电压过零之前的电压值，并利用电压值来确定近似过零点。在至少一个实施例中，通过确定AC输入电压的近似零交叉，控制器不受调光器的任何干扰影响，否则可能会使检测到零交叉问题。在至少一个实施例中，控制器使用估计AC输入电压的波形的函数来近似AC输入电压，并根据AC输入电压的近似确定AC输入电压的近似过零点。

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