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1. 发明申请

WO2016069366A3 POWER STAGE WITH SWITCHED MODE AMPLIFIER AND LINEAR AMPLIFIER 审中-公开
标题翻译：功率级带开关模式放大器和线性放大器
公开(公告)号：WO2016069366A3
公开(公告)日：2016-06-23
申请号：PCT/US2015056846
申请日：2015-10-22
申请人： CIRRUS LOGIC INC
发明人： KING ERIC J , AMADI CHRISTOPHE J , MELANSON JOHN L
IPC分类号： H03F1/02 , H03F1/08 , H03F3/181 , H03F3/217
CPC分类号： H03F3/2175 , H03F1/0277 , H03F1/083 , H03F3/181 , H03F3/185 , H03F3/217 , H03F3/2171 , H03F3/2173 , H03F3/2178 , H03F2200/03 , H03F2200/231
摘要： A method for producing an output voltage to a load may include, in a power stage comprising power converter having a power inductor, a plurality of switches arranged to sequentially operate in a plurality of switch configurations, and an output for producing the output voltage comprising a first output terminal and a second output terminal, controlling the linear amplifier to transfer electrical energy from the input source of the power stage to the load in accordance with one or more least significant bits of a digital input signal, and controlling the power converter in accordance with bits of the digital input signal other than the one or more least significant bits to sequentially apply switch configurations from the plurality of switch configurations to selectively activate or deactivate each of the plurality of switches in order to transfer electrical energy from the input source of the power stage to the load.
摘要翻译：一种用于向负载产生输出电压的方法可以包括：在包括具有功率电感器的功率转换器的功率级中，多个开关被布置成以多个开关配置顺序地操作，并且用于产生输出电压的输出包括第一输出端和第二输出端，控制线性放大器根据数字输入信号的一个或多个最低有效位将电能从功率级的输入源传输到负载，并且根据利用除所述一个或多个最低有效位之外的所述数字输入信号的位顺序地应用来自所述多个开关配置的开关配置，以选择性地激活或去激活所述多个开关中的每一个，以便从所述输入源功率级到负载。

2. 发明申请

WO2015119956A3 SWITCHED MODE AMPLIFIER 审中-公开
标题翻译：开关模式放大器
公开(公告)号：WO2015119956A3
公开(公告)日：2015-10-08
申请号：PCT/US2015014274
申请日：2015-02-03
申请人： CIRRUS LOGIC INC
发明人： MELANSON JOHN L , TUCKER JOHN C , KING ERIC J , SWANSON ERIC
IPC分类号： H03F1/02 , H02M3/158 , H03F3/181 , H03F3/185 , H03F3/217 , H04R1/00
CPC分类号： H02M3/158 , H03F1/0227 , H03F1/0238 , H03F3/181 , H03F3/185 , H03F3/217 , H03F3/2178 , H03F2200/03 , H03F2200/504 , H04R1/00
摘要： A switching power stage for producing an output voltage to a load may include a power converter and a controller. The power converter may include a power inductor and plurality of switches arranged to sequentially operate in a plurality of switch configurations. The controller may be configured to, based on a measured parameter associated with the switching power stage, select a selected operational mode of the power converter from a plurality of operational modes, and sequentially apply switch configurations from the plurality of switch configurations to selectively activate or deactivate each of the plurality of switches in order to transfer electrical energy from an input source of the power converter to the load in accordance with the selected operational mode.
摘要翻译：用于产生负载的输出电压的开关功率级可以包括功率转换器和控制器。功率转换器可以包括功率电感器和布置成顺序地以多个开关配置操作的多个开关。控制器可以被配置为基于与开关功率级相关联的测量参数，从多个操作模式中选择功率转换器的所选择的操作模式，并且从多个开关配置顺序地施加开关配置以选择性地激活或停用多个开关中的每一个，以便根据所选择的操作模式将电能从功率转换器的输入源传输到负载。

3. 发明申请

WO2015116489A3 LOW-COST LOW-POWER LIGHTING SYSTEM AND LAMP ASSEMBLY 审中-公开
公开(公告)号：WO2015116489A3
公开(公告)日：2015-09-24
申请号：PCT/US2015012611
申请日：2015-01-23
申请人： CIRRUS LOGIC INC
发明人： MELANSON JOHN L , KING ERIC J
IPC分类号： H05B33/08 , H05B39/04
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.

4. 发明申请

WO2015116489A2 LOW-COST LOW-POWER LIGHTING SYSTEM AND LAMP ASSEMBLY 审中-公开
标题翻译：低成本低功耗照明系统和灯组件
公开(公告)号：WO2015116489A2
公开(公告)日：2015-08-06
申请号：PCT/US2015012611
申请日：2015-01-23
申请人： CIRRUS LOGIC INC
发明人： MELANSON JOHN L , KING ERIC J
IPC分类号： H05B33/08
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，一种方法和设备可以包括从调光器接收输入波形，其中输入波形在第一频率处是周期性的。该方法和装置还可以包括产生与耦合到输出波形的负载无关的输出波形，其中该输出波形在基本上大于第一频率的第二频率处是周期性的，其中第二频率和振幅的至少其中之一输出波形基于指示调光器的控制设置的输入波形的切相角。

5. 发明申请

WO2015171931A4 SYSTEM WITH MULTIPLE SIGNAL LOOPS AND SWITCHED MODE CONVERTER 审中-公开
标题翻译：具有多个信号灯和开关模式转换器的系统
公开(公告)号：WO2015171931A4
公开(公告)日：2015-12-30
申请号：PCT/US2015029747
申请日：2015-05-07
申请人： CIRRUS LOGIC INC
发明人： KING ERIC J , MELANSON JOHN L , MARU SIDDHARTH
IPC分类号： H03F3/181 , H03F3/217
CPC分类号： H03F1/083 , G05F1/575 , H02M3/158 , H03F1/0277 , H03F3/181 , H03F3/217 , H03F3/2178 , H03F2200/03 , H03F2200/372
摘要： In accordance with embodiments of the present disclosure, a system may include an impedance estimator configured to estimate an impedance of a load and generate a target current based at least on an input voltage and the impedance, a voltage feedback loop responsive to a difference between the input voltage and an output voltage of the load, and a current controller configured to, responsive to the voltage feedback loop, the impedance estimator, and the input voltage, generate an output current to the load.
摘要翻译：根据本公开的实施例，系统可以包括阻抗估计器，其被配置为基于至少基于输入电压和阻抗来估计负载的阻抗并产生目标电流，电压反馈回路响应于输入电压和负载的输出电压;以及电流控制器，被配置为响应于电压反馈环路，阻抗估计器和输入电压，产生到负载的输出电流。

6. 发明申请

WO2012061782A3 THERMAL MANAGEMENT IN A LIGHTING SYSTEM USING MULTIPLE, CONTROLLED POWER DISSIPATION CIRCUITS 审中-公开
标题翻译：使用多个控制功率放电电路的照明系统中的热管理
公开(公告)号：WO2012061782A3
公开(公告)日：2013-01-10
申请号：PCT/US2011059460
申请日：2011-11-04
申请人： CIRRUS LOGIC INC , MELANSON JOHN L , KING ERIC J
发明人： MELANSON JOHN L , KING ERIC J
IPC分类号： H02M3/00 , H05B33/08 , H05B37/02
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： A lighting system includes a controller that is configured to provide thermal management for the lighting system by distributing excess energy in the lighting system through multiple power dissipation circuits. In at least one embodiment, the lighting system is a phase cut compatible, dimmable lighting system having one or more light sources selected from a group consisting of at least one light emitting diode and at least one compact fluorescent lamp. In at least one embodiment, the controller is configured to control the plurality of power dissipation circuits in accordance with a thermal management strategy to dissipate the excess energy in the phase cut compatible, dimmable lighting system. The particular thermal management strategy is a matter of design choice. The power distribution circuits include two of more of: a controlled switch path power dissipation circuit, a controlled link path power dissipation circuit, and a controlled flyback path power dissipation circuit.
摘要翻译：照明系统包括控制器，其被配置为通过多个功率消耗电路在照明系统中分配多余的能量来为照明系统提供热管理。在至少一个实施例中，照明系统是具有从由至少一个发光二极管和至少一个紧凑型荧光灯组成的组中选择的一个或多个光源的相切兼容的可调光照明系统。在至少一个实施例中，控制器被配置为根据热管理策略来控制多个功率消耗电路，以耗散相切兼容的可调光照明系统中的多余能量。特定的热管理策略是设计选择的问题。功率分配电路包括以下两个中的一个：受控开关路径功耗电路，受控链路路径功耗电路和受控反激路径功耗电路。

7. 发明申请

WO2012027507A3 MULTI-MODE DIMMER INTERFACING INCLUDING ATTACHED STATE CONTROL 审中-公开
标题翻译：多模式调光器接口，包括连接状态控制
公开(公告)号：WO2012027507A3
公开(公告)日：2012-06-21
申请号：PCT/US2011049019
申请日：2011-08-24
申请人： CIRRUS LOGIC INC , KING ERIC J , MELANSON JOHN L
发明人： KING ERIC J , MELANSON JOHN L
IPC分类号： H05B33/08 , H05B37/02
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。

8. 发明申请

WO2015119958A4 SYSTEMS AND METHODS FOR CONTROLLING COMMON MODE VOLTAGE OF MULTI-MODE POWER CONVERTER 审中-公开
标题翻译：用于控制多模式功率转换器的共模电压的系统和方法
公开(公告)号：WO2015119958A4
公开(公告)日：2015-10-29
申请号：PCT/US2015014282
申请日：2015-02-03
申请人： CIRRUS LOGIC INC
发明人： KING ERIC J , MELANSON JOHN L
IPC分类号： H03F1/02 , H03F3/181 , H03F3/217
CPC分类号： H02M3/158 , H03F1/0227 , H03F1/0238 , H03F3/181 , H03F3/185 , H03F3/217 , H03F3/2178 , H03F2200/03 , H03F2200/504 , H04R1/00
摘要： A switching power stage for producing an output voltage to a load may include a power converter and a controller. The power converter may include a power inductor and plurality of switches arranged to sequentially operate in a plurality of switch configurations. The controller may be configured to, based at least on an input signal to the switching power stage, determine the differential output voltage to be driven at the load, and based on the differential output voltage to be driven at the load, apply a switch configuration from the plurality of switch configurations to selectively activate or deactivate each of the plurality of switches in order to generate the differential output voltage.
摘要翻译：用于向负载产生输出电压的开关功率级可以包括功率转换器和控制器。功率转换器可以包括功率电感器和布置成以多个开关配置顺序操作的多个开关。控制器可以被配置为至少基于到开关功率级的输入信号来确定要在负载处被驱动的差分输出电压并且基于要在负载处被驱动的差分输出电压来施加开关配置从所述多个开关配置中选择性地激活或去激活所述多个开关中的每一个，以便产生所述差分输出电压。

9. 发明申请

WO2013126836A8 MIXED LOAD CURRENT COMPENSATION FOR LED LIGHTING 审中-公开
标题翻译： LED照明的混合负载电流补偿
公开(公告)号：WO2013126836A8
公开(公告)日：2014-08-07
申请号：PCT/US2013027507
申请日：2013-02-22
申请人： CIRRUS LOGIC INC
发明人： KING ERIC J , MELANSON JOHN L , BAKER DANIEL J
IPC分类号： H05B33/08 , H05B37/02
CPC分类号： H05B37/02 , H05B33/0815 , H05B33/0845
摘要： In at least one embodiment, a system and method provide current compensation in a lighting system by controlling a lamp current to prevent a current through a triac-based dimmer from undershooting a holding current value. In at least one embodiment, at least one of the lamps includes a controller that controls circuitry in the lamp to draw more lamp current for a period of time than needed to illuminate a brightness of the lamp at a level corresponding to particular phase-cut angle of the supply voltage. By drawing more current than needed, the controller increases the dimmer current during the period of time to prevent the dimmer current from falling below the holding current value. In at least one embodiment, the period of time corresponds to a compensating pulse of the lamp current at a time when the dimmer current would otherwise fall below the holding current value.
摘要翻译：在至少一个实施例中，系统和方法通过控制灯电流来提供照明系统中的电流补偿，以防止通过基于三端双向可控硅开关控制器的调光器的电流低于保持电流值。在至少一个实施例中，灯中的至少一个包括控制器，该控制器控制灯中的电路，以在比与特定相切角对应的水平下照亮灯的亮度所需的时间段吸取更多的灯电流的电源电压。通过吸收比所需更多的电流，控制器在一段时间内增加调光器电流，以防止调光器电流降至保持电流值以下。在至少一个实施例中，该时间段对应于当调光电流否则将低于保持电流值时的灯电流的补偿脉冲。

10. 发明申请

WO2012061774A3 CONTROLLED ENERGY DISSIPATION IN A SWITCHING POWER CONVERTER 审中-公开
标题翻译：开关电源转换器中的控制能量消耗
公开(公告)号：WO2012061774A3
公开(公告)日：2012-11-08
申请号：PCT/US2011059447
申请日：2011-11-04
申请人： CIRRUS LOGIC INC , MELANSON JOHN L , KING ERIC J
发明人： MELANSON JOHN L , KING ERIC J
IPC分类号： H02M3/00 , H05B33/08 , H05B37/02
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。

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