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1.发明申请Adaptive Current Control Timing and Responsive Current Control for Interfacing with a Dimmer 审中-公开自适应电流控制与调光器接口的时序和响应电流控制公开(公告)号：US20150351178A1
公开(公告)日：2015-12-03
申请号：US14728039
申请日：2015-06-02
Applicant: Cirrus Logic, Inc.
Inventor： Zhaohui He
IPC: H05B33/08
CPC classification number: 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
Abstract: 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.
Abstract translation: 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。
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2.发明授权Adaptive current control timing and responsive current control for interfacing with a dimmer 有权自适应电流控制定时和响应电流控制，用于与调光器接口公开(公告)号：US09071144B2
公开(公告)日：2015-06-30
申请号：US13715584
申请日：2012-12-14
Applicant: Cirrus Logic, Inc.
Inventor： Zhaohui He
CPC classification number: 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
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：US20130154496A1
公开(公告)日：2013-06-20
申请号：US13715914
申请日：2012-12-14
Applicant: Cirrus Logic, Inc.
Inventor： Siddharth Maru , Zhaohui He , Mohit Sood
CPC classification number: 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
Abstract: In at least one embodiment, an electronic system and method includes a controller to control a switching power converter in at least two different modes of operation depending on whether the controller detects a dimmer or not and/or whether a load requests more power than either of the two operational modes can provide. In at least one embodiment, the controller detects whether a dimmer is phase cutting an input voltage to a switching power converter. The controller operates the switching power converter in a first mode if the dimmer is detected, and the controller operates the switching power converter in a second mode if the dimmer is not detected. The controller also transitions between operating the switching power converter in the first mode and the second mode if a status of detection of the dimmer changes.
Abstract translation: 在至少一个实施例中，电子系统和方法包括控制器，用于根据控制器是否检测到调光器和/或负载是否要求比任何一个调光器更多的功率来控制至少两种不同的操作模式的开关功率转换器 两种操作模式可以提供。 在至少一个实施例中，控制器检测调光器是否相位切割到开关功率转换器的输入电压。 如果检测到调光器，则控制器以第一模式操作开关功率转换器，并且如果未检测到调光器，则控制器在第二模式下操作开关功率转换器。 如果调光器的检测状态改变，则控制器还在第一模式中操作开关电源转换器和第二模式之间转换。
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4.发明申请Switching Parameter Based Discontinuous Mode-Critical Conduction Mode Transition 有权基于开关参数的不连续模式临界导通模式转换公开(公告)号：US20150340955A1
公开(公告)日：2015-11-26
申请号：US14701791
申请日：2015-05-01
Applicant: Cirrus Logic, Inc.
Inventor： John L. Melanson , Zhaohui He
IPC: H02M3/335
CPC classification number: H02M3/33507 , H02M3/33523 , H02M2001/0003 , H02M2001/007 , H05B33/0815 , Y02B20/346
Abstract: 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.
Abstract translation: 电子系统包括控制器，用于至少提供开关功率转换器的双模式导通控制。 在至少一个实施例中，控制器能够使用具有对应于一个时间的近似峰值电压的值的测量的开关时间参数来控制开关功率转换器的不连续导通模式（DCM）和临界导通模式（CRM）之间的转换 - 提供给开关电源转换器的电源电压。 在至少一个实施例中，控制器通过动态地确定开关功率转换器的控制开关的最小非导通时间，在大约电源电压的峰值处使用测量的开关时间参数值来动态地补偿电子系统的变化参数 的电源电压。
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公开(公告)号：US09184666B2
公开(公告)日：2015-11-10
申请号：US13833587
申请日：2013-03-15
Applicant: Cirrus Logic, Inc.
Inventor： Mohit Sood , Spencer Isaacson , Rahul Singh , Zhaohui He
CPC classification number: H02M3/33523 , H02M3/335 , H03K17/145 , H05B33/0815 , H05B33/0848 , H05B33/0884 , Y02B20/341 , Y10T307/406 , Y10T307/832
Abstract: A system and method include a controller that reduces power dissipated by a switch, such as a source-controlled field effect transistor, when an estimated amount of power dissipated by the switch exceeds a predetermined threshold. Reducing the power dissipated by the switch prevents damage to the switch due to overheating. The controller determines the estimated amount of power dissipated by the switch using actual drain-to-source current and drain voltage data. In at least one embodiment, the controller includes a fail-safe, estimated power dissipation determination path that activates when the drain voltage data fails a reliability test. Additionally, in at least one embodiment, the controller includes a model of thermal characteristics of the switch. In at least one embodiment, the controller utilizes real-time estimated power dissipation by the switch and the model to determine when the estimated power dissipated by the switch exceeds a power dissipation protection threshold.
Abstract translation: 一种系统和方法包括当由开关消耗的估计功率超过预定阈值时，减少由诸如源极控制的场效应晶体管等开关消耗的功率的控制器。 降低开关消耗的功率可以防止由于过热而损坏开关。 控制器使用实际的漏极 - 源极电流和漏极电压数据确定开关耗散的功率的估计量。 在至少一个实施例中，控制器包括故障安全的估计功率耗散确定路径，当漏极电压数据失败可靠性测试时激活。 另外，在至少一个实施例中，控制器包括开关的热特性模型。 在至少一个实施例中，控制器利用开关和模型的实时估计的功率消耗来确定由开关消耗的估计功率何时超过功率耗散保护阈值。
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Patent Agency Ranking
6.发明申请ACCELERATION OF OUTPUT ENERGY PROVISION FOR A LOAD DURING START-UP OF A SWITCHING POWER CONVERTER 有权开关电源转换器启动期间负载的输出能量提供的加速公开(公告)号：US20140028095A1
公开(公告)日：2014-01-30
申请号：US13829231
申请日：2013-03-14
Applicant: CIRRUS LOGIC, INC.
Inventor： Siddharth Maru , Zhaohui He , Mohit Sood , Prashanth Drakshapalli , Rahul Singh
IPC: H02M3/335
CPC classification number: H02M3/33523 , H02M3/335 , H03K17/145 , H05B33/0815 , H05B33/0848 , H05B33/0884 , Y02B20/341 , Y10T307/406 , Y10T307/832
Abstract: An electronic system and method include a controller to operate in a start-up mode to accelerate driving a load to an operating voltage and then operates in a post-start-up mode. A start-up condition occurs when the controller detects that a load voltage is below a predetermined voltage threshold level. The predetermined voltage threshold level is set so that the controller will boost the voltage to an operating value of a load voltage at a faster rate than during normal, steady-state operation. The controller causes a switching power converter to provide charge to the load at a rate in accordance with a start-up mode until reaching an energy-indicating threshold. When the energy-indicating threshold has been reached, the controller causes the switching power converter to (i) decrease the amount of charge provided to the load relative to the charge provided during the start-up mode and (ii) operate in a distinct post-start-up-mode.
Abstract translation: 电子系统和方法包括控制器，其以启动模式操作以加速将负载驱动到工作电压，然后在启动后模式下操作。 当控制器检测到负载电压低于预定电压阈值电平时，发生启动条件。 设定预定的电压阈值电平，使得控制器将以比在正常的稳态操作期间更快的速率将电压升高到负载电压的操作值。 控制器使得开关功率转换器以按照启动模式的速率向负载提供电荷，直到达到能量指示阈值。 当达到能量指示阈值时，控制器使开关功率转换器（i）减少提供给负载的相对于启动模式期间提供的电荷的电荷量，以及（ii）在不同的位置操作 - 启动模式。
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7.发明申请Utilizing Secondary-Side Conduction Time Parameters of a Switching Power Converter to Provide Energy to a Load 有权利用开关电源转换器的次级侧传导时间参数为负载提供能量公开(公告)号：US20150340956A1
公开(公告)日：2015-11-26
申请号：US14701946
申请日：2015-05-01
Applicant: Cirrus Logic, Inc.
Inventor： Yanhui Xie , Michael A. Kost , John L. Melanson , Zhaohui He , Chris M. Franklin
IPC: H02M3/335
CPC classification number: H02M3/33507 , H05B33/08 , H05B33/0815 , Y02B20/346
Abstract: 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 switching power converter utilizes a transformer to transfer energy from a primary-side of the transformer to a secondary-side of the transformer. In at least one embodiment, the switching power converter control parameters includes a secondary-side conduction time delay that represents a time delay between when the primary-side ceases conducting a primary-side current and the secondary-side begins to conduct a secondary-side current. In at least one embodiment, determining and accounting for this secondary-side conduction time delay increases the prediction accuracy of the secondary-side current value and accurate delivery of energy to a load when the controller does not directly sense the secondary-side current provided to the load.
Abstract translation: 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，开关功率转换器利用变压器将能量从变压器的初级侧传递到变压器的次级侧。 在至少一个实施例中，开关功率转换器控制参数包括次级侧导通时间延迟，其表示在初级侧停止进行初级侧电流和次级侧之间的时间延迟开始进行二次侧 当前。 在至少一个实施例中，确定和计算该次级侧导通时间延迟增加了次级侧电流值的预测精度，并且当控制器不直接感测提供给 负载。
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公开(公告)号：US09178444B2
公开(公告)日：2015-11-03
申请号：US13715914
申请日：2012-12-14
Applicant: Cirrus Logic, Inc.
Inventor： Siddharth Maru , Zhaohui He , Mohit Sood
CPC classification number: 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
Abstract: In at least one embodiment, an electronic system and method includes a controller to control a switching power converter in at least two different modes of operation depending on whether the controller detects a dimmer or not and/or whether a load requests more power than either of the two operational modes can provide. In at least one embodiment, the controller detects whether a dimmer is phase cutting an input voltage to a switching power converter. The controller operates the switching power converter in a first mode if the dimmer is detected, and the controller operates the switching power converter in a second mode if the dimmer is not detected. The controller also transitions between operating the switching power converter in the first mode and the second mode if a status of detection of the dimmer changes.
Abstract translation: 在至少一个实施例中，电子系统和方法包括控制器，用于根据控制器是否检测到调光器和/或负载是否要求比任何一个调光器更多的功率来控制至少两种不同的操作模式的开关功率转换器 两种操作模式可以提供。 在至少一个实施例中，控制器检测调光器是否相位切割到开关功率转换器的输入电压。 如果检测到调光器，则控制器以第一模式操作开关功率转换器，并且如果未检测到调光器，则控制器在第二模式下操作开关功率转换器。 如果调光器的检测状态改变，则控制器还在第一模式中操作开关功率转换器和第二模式之间转换。
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公开(公告)号：US20140028213A1
公开(公告)日：2014-01-30
申请号：US13833587
申请日：2013-03-15
Applicant: CIRRUS LOGIC, INC.
Inventor： Mohit Sood , Spencer Isaacson , Rahul Singh , Zhaohui He
CPC classification number: H02M3/33523 , H02M3/335 , H03K17/145 , H05B33/0815 , H05B33/0848 , H05B33/0884 , Y02B20/341 , Y10T307/406 , Y10T307/832
Abstract: A system and method include a controller that reduces power dissipated by a switch, such as a source-controlled field effect transistor, when an estimated amount of power dissipated by the switch exceeds a predetermined threshold. Reducing the power dissipated by the switch prevents damage to the switch due to overheating. The controller determines the estimated amount of power dissipated by the switch using actual drain-to-source current and drain voltage data. In at least one embodiment, the controller includes a fail-safe, estimated power dissipation determination path that activates when the drain voltage data fails a reliability test. Additionally, in at least one embodiment, the controller includes a model of thermal characteristics of the switch. In at least one embodiment, the controller utilizes real-time estimated power dissipation by the switch and the model to determine when the estimated power dissipated by the switch exceeds a power dissipation protection threshold.
Abstract translation: 一种系统和方法包括当由开关消耗的估计功率超过预定阈值时，降低由诸如源极控制场效应晶体管的开关消耗的功率的控制器。 降低开关消耗的功率可以防止由于过热而损坏开关。 控制器使用实际的漏极 - 源极电流和漏极电压数据确定开关耗散的功率的估计量。 在至少一个实施例中，控制器包括故障安全的估计功率耗散确定路径，当漏极电压数据失败可靠性测试时激活。 另外，在至少一个实施例中，控制器包括开关的热特性模型。 在至少一个实施例中，控制器利用开关和模型的实时估计的功率消耗来确定由开关消耗的估计功率何时超过功率耗散保护阈值。
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10.发明授权公开(公告)号：US09166485B2
公开(公告)日：2015-10-20
申请号：US14203792
申请日：2014-03-11
Applicant: Cirrus Logic, Inc.
Inventor： Siddharth Maru , Zhaohui He
CPC classification number: H02M3/33507 , H02M1/4258 , H02M3/156 , H05B33/0815 , H05B33/0848 , Y02B20/347 , Y02B70/126
Abstract: An electronic system and method includes a controller to control a switching power converter in at least two different modes of operation, a normal mode and an error reduction mode. The controller controls an amount of charge pushed (i.e. delivered) by the switching power converter to a load to reduce a charge quantization error. The charge quantization error represents an amount of charge pushed to the load beyond a target charge amount. The controller determines an amount of charge to be pushed to the load. Based on the amount of charge to be pushed to the load, the controller generates a current control signal that controls a current control switch in the switching power converter. Determination of the control signal depends on whether the controller is operating in normal mode or error reduction mode. The controller attempts to reduce the charge quantization error to avoid power fluctuations.
Abstract translation: 一种电子系统和方法包括：控制器，其以至少两种不同的操作模式，正常模式和误差降低模式来控制开关功率转换器。 控制器控制由开关功率转换器推送（即传送）到负载的电荷量，以减少电荷量化误差。 电荷量化误差表示被推到负载超过目标电荷量的电荷量。 控制器确定要向负载推送的电量。 基于将被推送到负载的电荷量，控制器产生控制开关电力转换器中的电流控制开关的电流控制信号。 控制信号的确定取决于控制器是在正常模式还是误差降低模式下运行。 控制器尝试降低电荷量化误差以避免功率波动。
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