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11. 发明申请

WO2012061784A3 SWITCHING POWER CONVERTER INPUT VOLTAGE APPROXIMATE ZERO CROSSING DETERMINATION 审中-公开
标题翻译：切换电源转换器输入电压近似零交叉测量
公开(公告)号：WO2012061784A3
公开(公告)日：2012-07-05
申请号：PCT/US2011059462
申请日：2011-11-04
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： H02M1/08
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. The particular way of determining an approximate zero crossing is a matter of design choice. 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。确定近似过零点的具体方法是设计选择的问题。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。

12. 发明申请

WO2012016221A3 COORDINATED DIMMER COMPATIBILITY FUNCTIONS 审中-公开
标题翻译：协调调光器兼容性功能
公开(公告)号：WO2012016221A3
公开(公告)日：2012-03-29
申请号：PCT/US2011046027
申请日：2011-07-29
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： H02M1/36 , H02M1/00 , H05B33/08
CPC分类号： H02M3/33507 , H02M1/36 , H02M7/06 , H02M2001/0006 , H05B33/0815 , Y02B20/346 , Y10T307/352 , Y10T307/50
摘要： A system and method includes a controller that is configured to coordinate (i) a low impedance path for a dimmer current, (ii), control of switch mode power conversion and (iii) an inactive state to, for example, to allow 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), and (iii), the controller controls a power converter system that is compatible with a triac-based dimmer. In at least one embodiment, the controller coordinates functions (i), (ii), and (iii) in response to a particular dimming level indicated by a phase cut, rectified input voltage supplied to the power converter system.
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）开关模式功率转换的控制和（iii）非活动状态，以例如允许调光器在交流（AC）电源电压的周期到周期之间正常工作。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）和（iii），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。在至少一个实施例中，控制器响应由提供给功率转换器系统的相位切断的整流输入电压指示的特定调光电平来对功能（i），（ii）和（iii）进行协调。

13. 发明申请

WO2016069366A4 POWER STAGE WITH SWITCHED MODE AMPLIFIER AND LINEAR AMPLIFIER 审中-公开
标题翻译：具有开关模式放大器和线性放大器的功率级
公开(公告)号：WO2016069366A4
公开(公告)日：2016-08-11
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：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，布置成以多个开关配置顺序工作的多个开关，以及用于产生包括第一输出端子和第二输出端子，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，并根据其中所述数字输入信号的位除了所述一个或多个最低有效位以顺序地施加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，以便从所述多个开关的输入源功率级到负载。

14. 发明申请

WO2012061781A3 CONTROLLED POWER DISSIPATION IN A LINK PATH IN A LIGHTING SYSTEM 审中-公开
标题翻译：在照明系统中的连接路径中的控制功率消耗
公开(公告)号：WO2012061781A3
公开(公告)日：2012-11-08
申请号：PCT/US2011059459
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 a link path power dissipation circuit to actively and selectively control power dissipation of excess energy in a switching power converter of the lighting system. The link path power dissipation circuit dissipates power through a link path of the switching power converter by controlling a link current of the switching power converter. In at least one embodiment, the controller controls the link path power dissipation circuit to limit the link current with a current source and dissipate power in the current source. In at least one embodiment, the link path power dissipation circuit includes a switch to limit the link current and dissipate power in the link path.
摘要翻译：在至少一个实施例中，照明系统包括链路路径功耗电路，用于主动地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。链路路径功耗电路通过控制开关电源转换器的链路电流来消耗开关电源转换器的链路路径的电力。在至少一个实施例中，控制器控制链路路径功率耗散电路以限制与电流源的链路电流并消耗电流源中的功率。在至少一个实施例中，链路路径功耗电路包括限制链路电流并消耗链路路径中的功率的开关。

15. 发明申请

WO2012061769A2 CONTROLLED POWER DISSIPATION IN A SWITCH PATH IN A LIGHTING SYSTEM 审中-公开
标题翻译：在照明系统中的开关路径中的控制功率消耗
公开(公告)号：WO2012061769A2
公开(公告)日：2012-05-10
申请号：PCT/US2011059438
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： H05B37/02
CPC分类号： H05B33/0815 , H02M1/4225 , H02M2001/0045 , H05B33/0842 , H05B41/245 , H05B41/2928 , H05B41/34 , Y02B20/346 , Y02B70/126
摘要： A lighting system includes one or more methods and systems to control dissipation of excess power in the lighting system when the power into a switching power converter from a leading edge, phase-cut dimmer is greater than the power out of the switching power converter. In at least one embodiment, the lighting system includes a controller that controls dissipation of excess energy in the lighting system to prevent a premature disconnection of the phase-cut dimmer. In at least one embodiment, the controller actively controls power dissipation by generating one or more signals to actively and selectively control power dissipation in the lighting system. By actively and selectively controlling power dissipation in the lighting system, the controller intentionally dissipates power when the power into the lighting system should be greater than the power out to a lamp of the lighting system. In at least one embodiment, the controller creates one or more intermixed and/or interspersed power dissipation phases with one or more switching power converter charging and/or flyback phases.
摘要翻译：照明系统包括一个或多个方法和系统，用于当来自前沿的切换调光器的功率大于开关功率转换器的功率时，控制照明系统中多余功率的耗散。在至少一个实施例中，照明系统包括控制器，其控制照明系统中的多余能量的耗散以防止相位切割调光器的过早断开。在至少一个实施例中，控制器通过产生一个或多个信号主动地和有选择地控制照明系统中的功率耗散来主动地控制功率耗散。通过主动和选择性地控制照明系统中的功率消耗，当进入照明系统的电力应当大于照明系统的灯的电力时，控制器有意地耗散功率。在至少一个实施例中，控制器利用一个或多个开关功率转换器充电和/或反激阶段创建一个或多个混合和/或散置的功率耗散相位。

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