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1. 发明公开

EP2792060A2 ADAPTIVE CURRENT CONTROL TIMING AND RESPONSIVE CURRENT CONTROL FOR INTERFACING WITH A DIMMER 审中-公开
标题翻译： ANPASSUNGSFÄHIGESTROMSTEUERUNGSTAKTUNG UND REAKING STROMSTEUERUNG ZUR SCHNITTSTELLENBILDUNG MIT EINEM DIMMER
公开(公告)号：EP2792060A2
公开(公告)日：2014-10-22
申请号：EP12818709.3
申请日：2012-12-14
申请人： Cirrus Logic, Inc. , He, Zhaohui
发明人： HE, Zhaohui
IPC分类号： H02M5/257 , H02M1/44
CPC分类号： H02M3/33507 , H02M1/4258 , H02M1/44 , H02M3/33523 , H02M3/33561 , H02M3/33576 , H02M5/2576 , H02M7/217 , H02M2001/0006 , H02M2001/0048 , H05B33/0815 , H05B33/0845 , H05B37/02 , Y02B20/346 , Y02B20/347 , Y02B70/126 , Y02B70/1491
摘要： In at least one embodiment, an electronic system adapts current control timing for half line cycle of a phase-cut input voltage and responsively controls a dimmer current in a power converter system. The adaptive current control time and responsive current control provides, for example, interfacing with a dimmer. The electronic system and method include a dimmer, a switching power converter, and a controller to control the switching power converter and controls a dimmer current. In at least one embodiment, the controller determines a predicted time period from a zero crossing until a leading edge of a phase-cut input voltage and then responsively controls the dimmer current to, for example, reduce current and voltage perturbations (referred to as "ringing"), improve efficiency, and reduce an average amount of power handled by various circuit components.
摘要翻译：电子系统和方法包括：主动地控制从开关功率转换器的初级绕组到辅助电源的辅助绕组的功率传递的控制器。开关电源转换器被控制和配置为使得在向辅助绕组传递电力时，开关功率转换器不将电荷传送到开关功率转换器的一个或多个二次绕组。因此，开关功率转换器将一个或多个次级变压器绕组电流与辅助绕组电流隔离。通过将输送到一个或多个次级绕组的电荷从传送到辅助绕组的电荷隔离，控制器可以精确地确定传送到次级绕组的电荷量，从而准确地确定负载。

2. 发明申请

WO2012167127A1 CONTROL DATA DETERMINATION FROM PRIMARY-SIDE SENSING OF A SECONDARY-SIDE VOLTAGE IN A SWITCHING POWER CONVERTER 审中-公开
标题翻译：在开关电源转换器中控制二次侧电压初级侧感测的数据确定
公开(公告)号：WO2012167127A1
公开(公告)日：2012-12-06
申请号：PCT/US2012/040522
申请日：2012-06-01
申请人： CIRRUS LOGIC, INC. , GRISAMORE, Robert T. , HE, Zhaohui
发明人： GRISAMORE, Robert T. , HE, Zhaohui
IPC分类号： H02M3/335 , H05B33/08
CPC分类号： H05B33/0815 , H02M3/33523 , Y02B20/346 , Y02B70/1433
摘要： A power distribution system includes controller of a switching power converter to control the switching power converter and determine one or more switching power converter control parameters. In at least one embodiment, the controller determines the one or more switching power converter control parameters using a resonant period factor from a reflected secondary-side voltage and an occurrence of an approximate zero voltage crossing of the secondary-side voltage during a resonant period of the secondary-side voltage. In at least one embodiment, the switching power converter control parameters include (i) an estimated time of a minimum value of the secondary-side voltage during the resonant period and (ii) an estimated time at which a current in the secondary-side of the transformer decayed to approximately zero.
摘要翻译：配电系统包括开关电源转换器的控制器，以控制开关功率转换器并确定一个或多个开关功率转换器控制参数。在至少一个实施例中，控制器使用来自反射的次级侧电压的谐振周期因子和在次级侧电压的共振周期期间发生次级侧电压的近似零电压交叉来确定一个或多个开关功率转换器控制参数次级侧电压。在至少一个实施例中，开关功率转换器控制参数包括（i）在谐振周期期间次级侧电压的最小值的估计时间，以及（ii）次级侧电流的估计时间变压器衰减到零。

3. 发明申请

WO2012083222A3 SWITCHING PARAMETER BASED DISCONTINUOUS MODE-CRITICAL CONDUCTION MODE TRANSITION 审中-公开
公开(公告)号：WO2012083222A3
公开(公告)日：2012-06-21
申请号：PCT/US2011/065593
申请日：2011-12-16
申请人： CIRRUS LOGIC, INC. , MELANSON, John L. , HE, Zhaohui
发明人： MELANSON, John L. , HE, Zhaohui
IPC分类号： H05B41/282 , H02M3/335 , H05B37/02
摘要： An electronic system includes a controller to provide at least dual-mode conduction control of a switching power converter. In at least one embodiment, the controller is capable to control transitions between discontinuous conduction mode (DCM) and critical conduction mode (CRM) of the switching power converter using a measured switching time parameter having a value corresponding with an approximately peak voltage of a time-varying supply voltage supplied to the switching power converter. In at least one embodiment, the controller dynamically compensates for changing parameters of the electronic system by dynamically determining a minimum non-conductive time of the control switch of the switching power converter using the measured switching time parameter value at approximately the peak of the supply voltage of the supply voltage.

4. 发明申请

WO2013090852A3 ADAPTIVE CURRENT CONTROL TIMING AND RESPONSIVE CURRENT CONTROL FOR INTERFACING WITH A DIMMER 审中-公开
标题翻译：自适应电流控制时序和响应电流控制用于与DIMM连接
公开(公告)号：WO2013090852A3
公开(公告)日：2014-08-21
申请号：PCT/US2012069949
申请日：2012-12-14
申请人： CIRRUS LOGIC INC , HE ZHAOHUI
发明人： HE ZHAOHUI
IPC分类号： H02M5/257 , H02M1/00 , H02M1/44
CPC分类号： H02M3/33507 , H02M1/4258 , H02M1/44 , H02M3/33523 , H02M3/33561 , H02M3/33576 , H02M5/2576 , H02M7/217 , H02M2001/0006 , H02M2001/0048 , H05B33/0815 , H05B33/0845 , H05B37/02 , Y02B20/346 , Y02B20/347 , Y02B70/126 , Y02B70/1491
摘要： In at least one embodiment, an electronic system adapts current control timing for half line cycle of a phase-cut input voltage and responsively controls a dimmer current in a power converter system. The adaptive current control time and responsive current control provides, for example, interfacing with a dimmer. The electronic system and method include a dimmer, a switching power converter, and a controller to control the switching power converter and controls a dimmer current. In at least one embodiment, the controller determines a predicted time period from a zero crossing until a leading edge of a phase-cut input voltage and then responsively controls the dimmer current to, for example, reduce current and voltage perturbations (referred to as "ringing"), improve efficiency, and reduce an average amount of power handled by various circuit components.
摘要翻译：在至少一个实施例中，电子系统适应相切切输入电压的半线周期的电流控制定时，并且响应于控制功率转换器系统中的调光器电流。自适应电流控制时间和响应电流控制提供例如与调光器的接口。电子系统和方法包括调光器，开关电源转换器和控制器以控制开关功率转换器并控制调光器电流。在至少一个实施例中，控制器确定从零交叉直到相切输入电压的前沿的预测时间段，然后响应地控制调光器电流，例如减小电流和电压扰动（称为“ 振铃“），提高效率，并减少各种电路组件处理的平均功率。

5. 发明申请

WO2013090852A2 ADAPTIVE CURRENT CONTROL TIMING AND RESPONSIVE CURRENT CONTROL FOR INTERFACING WITH A DIMMER 审中-公开
标题翻译：自适应电流控制时序和响应电流控制用于与DIMM连接
公开(公告)号：WO2013090852A2
公开(公告)日：2013-06-20
申请号：PCT/US2012/069949
申请日：2012-12-14
申请人： CIRRUS LOGIC, INC. , HE, Zhaohui
发明人： HE, Zhaohui
IPC分类号： H02M5/257
CPC分类号： H02M3/33507 , H02M1/4258 , H02M1/44 , H02M3/33523 , H02M3/33561 , H02M3/33576 , H02M5/2576 , H02M7/217 , H02M2001/0006 , H02M2001/0048 , H05B33/0815 , H05B33/0845 , H05B37/02 , Y02B20/346 , Y02B20/347 , Y02B70/126 , Y02B70/1491
摘要： In at least one embodiment, an electronic system adapts current control timing for half line cycle of a phase-cut input voltage and responsively controls a dimmer current in a power converter system. The adaptive current control time and responsive current control provides, for example, interfacing with a dimmer. The electronic system and method include a dimmer, a switching power converter, and a controller to control the switching power converter and controls a dimmer current. In at least one embodiment, the controller determines a predicted time period from a zero crossing until a leading edge of a phase-cut input voltage and then responsively controls the dimmer current to, for example, reduce current and voltage perturbations (referred to as "ringing"), improve efficiency, and reduce an average amount of power handled by various circuit components.
摘要翻译：在至少一个实施例中，电子系统适应相切切输入电压的半线周期的电流控制定时，并且响应于控制功率转换器系统中的调光器电流。自适应电流控制时间和响应电流控制提供例如与调光器的接口。电子系统和方法包括调光器，开关电源转换器和控制器以控制开关功率转换器并控制调光器电流。在至少一个实施例中，控制器确定从零交叉直到相切输入电压的前沿的预测时间段，然后响应地控制调光器电流，例如减小电流和电压扰动（称为“ 振铃“），提高效率，并减少各种电路组件处理的平均功率。

6. 发明申请

WO2023069285A1 CALIBRATION OF FULLY-DIFFERENTIAL INPUT SYSTEM 审中-公开
公开(公告)号：WO2023069285A1
公开(公告)日：2023-04-27
申请号：PCT/US2022/046403
申请日：2022-10-12
申请人： CIRRUS LOGIC INTERNATIONAL SEMICONDUCTOR LTD. , HE, Zhaohui
发明人： PRAMANIK, Neel , ZHANG, Lingli , XU, Wei , DRAKSHAPALLI, Prashanth
IPC分类号： H03F3/45 , H03F3/181 , H03F3/187
摘要： A method for calibrating a fully-differential input system may include determining a first voltage of a first node of the fully-differential input system, wherein the first node is coupled at the first node to a plurality of first resistors in a first star configuration, determining a second voltage of a second node of the fully-differential input system, wherein the second node is coupled at the second node to a plurality of second resistors in a second star configuration, each resistor of the plurality of second resistors corresponding to a respective resistor of the plurality of first resistors, and trimming individual resistances of the plurality of first resistors and the plurality of second resistors in order to maintain a difference of a first voltage at the first node and a second voltage of the second node at approximately zero.

7. 发明申请

WO2017127132A1 SWITCHED MODE CONVERTER WITH VARIABLE COMMON MODE VOLTAGE BUFFER 审中-公开
标题翻译：具有可变公共模式电压缓冲器的开关模式转换器
公开(公告)号：WO2017127132A1
公开(公告)日：2017-07-27
申请号：PCT/US2016/040072
申请日：2016-06-29
申请人： CIRRUS LOGIC INTERNATIONAL SEMICONDUCTOR, LTD. , HE, Zhaohui
发明人： HE, Zhaohui , KING, Eric J. , MARU, Siddharth , MELANSON, John L.
IPC分类号： H03F3/217
CPC分类号： H03F1/32 , H03F1/0211 , H03F1/0227 , H03F1/0244 , H03F3/183 , H03F3/217 , H03F3/2171 , H03F3/2173 , H03F3/45076 , H03F2200/03 , H03F2203/45034 , H04R3/00 , H04R2420/03
摘要： A switching power stage for producing a load voltage at a load output of the switching power stage, wherein the load output comprises a first load terminal having a first load voltage and a second load terminal having a second load voltage such that the load voltage comprises a difference between the first and the second load voltages, that may include: a power converter comprising a power inductor and a plurality of switches, wherein the power converter is configured to drive a power converter output terminal; a linear amplifier configured to drive a linear amplifier output terminal; and a controller for controlling the plurality of switches and the linear amplifier in order to generate the load voltage as a function of an input signal to the controller such that energy delivered to the load output is supplied predominantly by the power converter.
摘要翻译：开关功率级，用于在所述开关功率级的负载输出端处产生负载电压，其中所述负载输出端包括具有第一负载电压的第一负载端子和具有第二负载的第二负载端子使得所述负载电压包括所述第一负载电压与所述第二负载电压之间的差值，所述负载电压可以包括：包括功率电感器和多个开关的功率转换器，其中所述功率转换器被配置为驱动功率转换器输出端子; 配置成驱动线性放大器输出端子的线性放大器; 以及控制器，用于控制所述多个开关和所述线性放大器，以便根据到所述控制器的输入信号来生成所述负载电压，使得输送到所述负载输出的能量主要由所述功率转换器提供。

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

WO2017127353A1 HYBRID SWITCHED MODE AMPLIFIER 审中-公开
标题翻译：混合开关模式放大器
公开(公告)号：WO2017127353A1
公开(公告)日：2017-07-27
申请号：PCT/US2017/013756
申请日：2017-01-17
申请人： CIRRUS LOGIC INTERNATIONAL SEMICONDUCTOR, LTD. , HE, Zhaohui
发明人： HE, Zhaohui , KING, Eric J. , MARU, Siddharth , MELANSON, John L.
IPC分类号： H03F3/217
CPC分类号： H03F3/217 , H03F1/04 , H03F1/34 , H03F3/185 , H03F3/2171 , H03F3/2173 , H03F3/45475 , H03F2200/351 , H03F2200/432 , H03F2203/45034 , H04R3/12 , H04R2420/03
摘要： A switching power stage for producing a load voltage may include a first processing path having a first output, a second processing path having a second output, a first plurality of switches comprising at least a first switch coupled between the first output and a first load terminal and a second switch coupled between the first output and the second load terminal, a second plurality of switches comprising at least a third switch coupled between the second output and the first load terminal and a fourth switch coupled between the second output and the second load terminal, and a controller configured to control switches in order to generate the load voltage as a function of an input signal such that one of the first switch and the second switch operates in a linear region of operation and one of the third switch and the fourth switch operates in a saturated region of operation for a predominance of a dynamic rage of the load voltage.
摘要翻译：用于产生负载电压的开关功率级可以包括具有第一输出的第一处理路径，具有第二输出的第二处理路径，包括至少第一开关的第一多个开关，所述第一开关耦合在所述第一输出以及耦合在所述第一输出和所述第二负载端子之间的第一开关和第二开关;第二开关，所述第二开关包括耦合在所述第二输出和所述第一负载端子之间的至少第三开关;以及第四开关，所述第二输出和所述第二负载端子以及控制器，所述控制器被配置为控制开关以便根据输入信号产生所述负载电压，使得所述第一开关和所述第二开关中的一个在线性工作区域中操作，并且一个第三开关和第四开关的操作在饱和操作区域内对于负载电压的动态范围占主导地位。

10. 发明申请

WO2012167161A1 PRIMARY-SIDE CONTROL OF A SWITCHING POWER CONVERTER WITH FEED FORWARD DELAY COMPENSATION 审中-公开
标题翻译：具有进给延迟补偿的开关电源转换器的主侧控制
公开(公告)号：WO2012167161A1
公开(公告)日：2012-12-06
申请号：PCT/US2012/040564
申请日：2012-06-01
申请人： CIRRUS LOGIC, INC. , HE, Zhaohui , GRISAMORE, Robert T. , KOST, Michael A.
发明人： HE, Zhaohui , GRISAMORE, Robert T. , KOST, Michael A.
IPC分类号： H05B33/08
CPC分类号： H05B33/0815 , Y02B20/346
摘要： An electronic system includes controller to control a switching power converter to provide power to a load. To control the amount of power provided to the load, in at least one embodiment, the controller senses a current value representing a current in the switching power converter and detects when the current value reaches a target peak value. However, due to delays in the controller and/or the switching power converter, the detected target peak value will not be the actual current peak value generated by the switching power converter. In at least one embodiment, the controller adjusts the detected target peak value with a post-detection delay compensation factor to generate a delay compensated current value that more accurately represents an actual peak current value associated with the current in the switching power converter.
摘要翻译：电子系统包括控制器以控制开关功率转换器以向负载提供电力。为了控制提供给负载的功率量，在至少一个实施例中，控制器感测表示开关功率转换器中的电流的电流值，并检测当前值何时达到目标峰值。然而，由于控制器和/或开关功率转换器的延迟，检测到的目标峰值将不是由开关功率转换器产生的实际电流峰值。在至少一个实施例中，控制器利用检测后延迟补偿因子调整检测到的目标峰值，以产生更精确地表示与开关功率转换器中的电流相关联的实际峰值电流值的延迟补偿电流值。

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