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1. 发明申请

WO2021081160A1 MULTIPHASE INDUCTIVE BOOST CONVERTER WITH MULTIPLE OPERATIONAL PHASES 审中-公开
公开(公告)号：WO2021081160A1
公开(公告)日：2021-04-29
申请号：PCT/US2020/056782
申请日：2020-10-22
申请人： CIRRUS LOGIC INTERNATIONAL SEMICONDUCTOR LTD. , KING, Eric J.
发明人： MELANSON, John L. , MACKAY, Graeme G. , ZHANG, Lingli
IPC分类号： H02J7/00 , H02M1/00 , H02M3/00 , H02M3/158
摘要： A battery management system configured to electrically couple to a battery may include a boost converter comprising a plurality of switches arranged to provide a boosted output voltage at an output of the boost converter from a source voltage of the battery and a bypass switch coupled between the battery and the output, wherein the battery management system is operable in a plurality of modes comprising a bypass mode wherein the source voltage is bypassed to the output and when the battery management system is in the bypass mode, at least one switch of the plurality of switches is enabled to increase a conductance between the battery and the output.

2. 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。

3. 发明申请

WO2012128794A1 TRAILING EDGE DIMMER COMPATIBILITY WITH DIMMER HIGH RESISTANCE PREDICTION 审中-公开
标题翻译：跟踪边缘调光器兼容性与调光器高电阻预测
公开(公告)号：WO2012128794A1
公开(公告)日：2012-09-27
申请号：PCT/US2011/061033
申请日：2011-11-16
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： H05B33/08 , H05B39/08 , H05B39/04
CPC分类号： H05B37/02 , H05B33/0815 , H05B33/0851 , H05B39/048
摘要： Electronic system (100) including a controller (402), which provides compatibility between an electronic light source (410) and a trailing edge dimmer (404). The controller is capable of predicting an estimated occurrence
摘要翻译：电子系统（100）包括提供电子光源（410）和后缘调光器（404）之间的兼容性的控制器（402）。控制器能够预测相位切断AC电压的下降沿，并且将相位切换电压从后沿转变到预定电压阈值。控制器基于来自相切切断AC电压的一个或多个先前循环的实际观测值来预测相切切断AC电压的后沿的估计出现。

4. 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。

5. 发明申请

WO2012061784A2 SWITCHING POWER CONVERTER INPUT VOLTAGE APPROXIMATE ZERO CROSSING DETERMINATION 审中-公开
标题翻译：开关电源变换器输入电压近似零交叉确定
公开(公告)号：WO2012061784A2
公开(公告)日：2012-05-10
申请号：PCT/US2011/059462
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： H05B37/02
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AC输入电压的周期期间感测前沿，相切AC输入电压值给开关功率变换器。控制器在交流输入电压过零点之前的时间检测电压值，并利用该电压值确定近似过零点。在至少一个实施例中，通过确定AC输入电压的近似过零点，控制器不受调光器的任何干扰的影响，否则可能使得检测过零点成为问题。确定近似过零点的具体方式是设计选择的问题。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输入电压的近似来确定AC输入电压的近似过零点。

6. 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。

7. 发明申请

WO2021050239A1 EFFICIENT USE OF ENERGY IN A SWITCHING POWER CONVERTER 审中-公开
公开(公告)号：WO2021050239A1
公开(公告)日：2021-03-18
申请号：PCT/US2020/047237
申请日：2020-08-20
申请人： CIRRUS LOGIC INTERNATIONAL SEMICONDUCTOR LTD. , KING, Eric J.
发明人： SHARMA, Ajit , ZHANG, Lingli , LARSEN, Christian , MACKAY, Graeme G.
IPC分类号： H02M1/32 , H02M3/156 , H02M3/158 , H02M1/00
摘要： A system may include a power converter having a maximum allowable input power drawn from a power source, an energy storage element coupled to an output of the power converter at a top plate of the energy storage element, wherein the energy storage element is configured to store excess energy, and control circuity configured to, when an input power of the power converter exceeds the maximum allowable input power, cause excess energy stored in the energy storage element to be consumed by circuitry coupled to the output of the power converter, and in order to maintain positive voltage headroom for the circuitry coupled to the output of the power converter, selectively couple a bottom plate of the energy storage element to the power source such that excess energy stored by the circuitry coupled to the output of the power converter is consumed from the energy storage device when the input power of the power converter exceeds the maximum allowable input power.

8. 发明申请

WO2013003810A1 INPUT VOLTAGE SENSING FOR A SWITCHING POWER CONVERTER AND A TRIAC-BASED DIMMER 审中-公开
标题翻译：用于开关电源转换器和基于TRIAC的调光器的输入电压感测
公开(公告)号：WO2013003810A1
公开(公告)日：2013-01-03
申请号：PCT/US2012/045108
申请日：2012-06-29
申请人： CIRRUS LOGIC, INC. , HE, Zhaohui , SINGH, Rahul , KING, Eric J. , MELANSON, John L. , DRAPER, William A.
发明人： HE, Zhaohui , SINGH, Rahul , KING, Eric J. , MELANSON, John L. , DRAPER, William A.
IPC分类号： H02M1/36 , H05B33/08
CPC分类号： H05B33/0815 , H05B33/0845 , Y02B20/346 , Y02B20/383 , Y02B20/386
摘要： An electronic lighting system and method described herein control energy provided to an electronic lighting device, such as one or more light-emitting diodes (LEDs) and/or compact fluorescent lamps (CFLs), of the electronic lighting system. A triac-based dimmer phase cuts a line voltage provided to the electronic lighting system. A controller of the electronic lighting system utilizes a probing system to overcome idiosyncrasies of the triac-based dimmer to allow the controller to probe and sense the line voltage. To reduce energy consumption, rather than probing each cycle of the output voltage of the triac-based dimmer, the controller periodically or intermittently probes the output voltage of the triac-based dimmer.
摘要翻译：本文所述的电子照明系统和方法控制提供给诸如电子照明系统的一个或多个发光二极管（LED）和/或紧凑型荧光灯（CFL）的电子照明装置的能量。基于三端双向可控硅开关控制器的调光器相位切断提供给电子照明系统的线路电压。电子照明系统的控制器利用探测系统来克服基于triac的调光器的特性，以允许控制器探测和感测线路电压。为了降低能耗，而不是探测基于三端双向可控硅的调光器的输出电压的每个周期，控制器周期性或间歇地探测基于三端双向可控硅的调光器的输出电压。

9. 发明申请

WO2012016207A1 MULTIPLE POWER SOURCES FOR A SWITCHING POWER CONVERTER CONTROLLER 审中-公开
标题翻译：用于开关电源转换器控制器的多个电源
公开(公告)号：WO2012016207A1
公开(公告)日：2012-02-02
申请号：PCT/US2011/046002
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
CPC分类号： H02M7/06 , H02M1/36 , H02M3/33507 , H02M2001/0006 , H05B33/0815 , Y02B20/346 , Y10T307/352 , Y10T307/50
摘要： An electronic system (200) includes two power supplies (202, 210) to supply an operating (VDD) voltage to a switching power converter. The first power supply (202), referred to as a start-up power supply, includes a first source follower transistor (212) to conduct a start-up current for a controller (204) and supply an operating voltage for the controller. The controller controls operation of the switching power converter. A second power supply (210), referred to as an auxiliary power supply, includes a second source follower transistor (218) to conduct a steady-state operational current for the controller and supply an operating voltage for the controller. In at least one embodiment, once the second power supply begins supplying the operating voltage to the controller, the start-up power supply automatically ceases supplying the start-up current to the controller.
摘要翻译：电子系统（200）包括向开关功率转换器提供工作（VDD）电压的两个电源（202,210）。被称为启动电源的第一电源（202）包括用于传导控制器（204）的启动电流的第一源极跟随器晶体管（212）并为控制器提供工作电压。控制器控制开关电源转换器的工作。称为辅助电源的第二电源（210）包括用于为控制器传导稳态工作电流并为控制器提供工作电压的第二源极跟随器晶体管（218）。在至少一个实施例中，一旦第二电源开始向控制器提供工作电压，启动电源自动停止向控制器提供启动电流。

10. 发明申请

WO2019245970A1 REMOVAL OF NEAR DC ERRORS IN A PEAK-CONTROLLED BOOST CONVERTER USING A LOW-BANDWIDTH SECONDARY CONTROL LOOP 审中-公开
公开(公告)号：WO2019245970A1
公开(公告)日：2019-12-26
申请号：PCT/US2019/037483
申请日：2019-06-17
申请人： CIRRUS LOGIC INTERNATIONAL SEMICONDUCTOR LTD. , KING, Eric J.
发明人： KING, Eric J. , MARU, Siddharth , HOFF, Thomas , MACKAY, Graeme G.
IPC分类号： H02M3/156 , H02M3/157
摘要： A method may include controlling switching behavior of switches of a switch-mode power supply based on a desired physical quantity associated with the switch-mode power supply, wherein the desired physical quantity is based at least in part on a slope compensation signal, generating the slope compensation signal to have a compensation value of approximately zero as seen by a compensation control loop of the switch-mode power supply, and modifying the slope compensation signal on successive switching cycles of the switch-mode power supply to account for differences in an output of the compensation control loop and an average current of an inductor of the switch-mode power supply in at least one phase of a switching period of a switching cycle of the switch-mode power supply.

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