公开(公告)号：US09167664B2

公开(公告)日：2015-10-20

申请号：US13798926

申请日：2013-03-13

Applicant: Cirrus Logic, Inc.

Inventor： Yanhui Xie ,  Eric Jerome King ,  John L. Melanson ,  Michael A. Kost

IPC: H05B37/02 ,  H05B33/08

CPC classification number: H05B37/02 ,  H05B33/0803 ,  H05B33/0809 ,  H05B33/0815 ,  H05B33/0845 ,  Y02B20/383

Abstract: In accordance with these and other embodiments of the present disclosure, a system and method for providing compatibility between a load and a secondary winding of an electronic transformer driven by a trailing-edge dimmer may include predicting based on an electronic transformer secondary signal an estimated occurrence of a high-resistance state of the trailing-edge dimmer, wherein the high-resistance state occurs when the trailing-edge dimmer begins phase-cutting an alternating current voltage signal and operating the load in a high-current mode for a period of time immediately prior to the estimated occurrence of the high-resistance state.

Abstract translation: 根据本公开的这些和其他实施例，用于提供由后沿调光器驱动的电子变压器的负载和次级绕组之间的兼容性的系统和方法可以包括基于电子变压器次级信号预测估计出现 的后缘调光器的高电阻状态，其中当后沿调光器开始相位切割交流电压信号并且以高电流模式操作负载一段时间时，发生高电阻状态 紧接在估计出现高电阻状态之前。

公开(公告)号：US08933648B1

公开(公告)日：2015-01-13

申请号：US14037001

申请日：2013-09-25

Applicant: Cirrus Logic, Inc.

Inventor： Richard Dean Putman ,  Yanhui Xie ,  Michael Kost ,  Jean Charles Pina

IPC: H05B37/02

CPC classification number: H05B33/0815 ,  H05B33/0845 ,  Y02B20/383

Abstract: According to systems and methods of this disclosure, a controller may be configured to: operate in a first compatibility mode of operation, determine from an input signal of the lamp assembly during operation in the first compatibility mode whether the first compatibility mode of operation provides compatibility between the lamp assembly and a power infrastructure to which it is coupled, select the first compatibility mode of operation from a plurality of modes of operation as a compatibility mode responsive to determining that the first compatibility mode of operation provides compatibility between the lamp assembly and a power infrastructure to which it is coupled, and select a second compatibility mode of operation from the plurality of modes of operation as the compatibility mode responsive to determining that the first compatibility mode of operation does not provide compatibility between the lamp assembly and the power infrastructure to which it is coupled.

Abstract translation: 根据本公开的系统和方法，控制器可以被配置为：在第一兼容性操作模式下操作，在第一兼容性模式下的操作期间，从灯组件的输入信号确定第一兼容性操作模式是否提供兼容性 在灯组件和与其耦合的电力基础设施之间，从多种操作模式中选择第一兼容性模式作为兼容性模式，以响应于确定第一兼容性操作模式提供灯组件和灯组件之间的兼容性 并且从多个操作模式中选择第二兼容性操作模式作为兼容性模式，以响应于确定第一兼容性操作模式不提供灯组件和电力基础设施之间的兼容性 它是耦合的。

公开(公告)号：US20140009078A1

公开(公告)日：2014-01-09

申请号：US13798926

申请日：2013-03-13

Applicant: CIRRUS LOGIC, INC.

Inventor： Yanhui Xie ,  Eric Jerome King ,  John L. Melanson ,  Michael A. Kost

IPC: H05B37/02

CPC classification number: H05B37/02 ,  H05B33/0803 ,  H05B33/0809 ,  H05B33/0815 ,  H05B33/0845 ,  Y02B20/383

Abstract: In accordance with these and other embodiments of the present disclosure, a system and method for providing compatibility between a load and a secondary winding of an electronic transformer driven by a trailing-edge dimmer may include predicting based on an electronic transformer secondary signal an estimated occurrence of a high-resistance state of the trailing-edge dimmer, wherein the high-resistance state occurs when the trailing-edge dimmer begins phase-cutting an alternating current voltage signal and operating the load in a high-current mode for a period of time immediately prior to the estimated occurrence of the high-resistance state.

Abstract translation: 根据本公开的这些和其他实施例，用于提供由后沿调光器驱动的电子变压器的负载和次级绕组之间的兼容性的系统和方法可以包括基于电子变压器次级信号预测估计出现 的后缘调光器的高电阻状态，其中当后沿调光器开始相位切割交流电压信号并且以高电流模式操作负载一段时间时，发生高电阻状态 紧接在估计出现高电阻状态之前。

公开(公告)号：US20140009079A1

公开(公告)日：2014-01-09

申请号：US13799010

申请日：2013-03-13

Applicant: CIRRUS LOGIC, INC.

Inventor： Yanhui Xie ,  Eric Jerome King ,  John L. Melanson

IPC: H05B37/02

CPC classification number: H05B37/02 ,  H05B33/0803 ,  H05B33/0809 ,  H05B33/0815 ,  H05B33/0845 ,  Y02B20/383

Abstract: A system and method for providing compatibility between a load and a secondary winding of a magnetic transformer driven at its primary winding by a trailing-edge dimmer may include determining from a magnetic transformer secondary signal a period of a half-line cycle of an output signal of the dimmer, determining from the magnetic transformer secondary signal an estimated occurrence of an end of a phase-cut angle of the dimmer, and generating a driving signal to the load based on the period and the estimated occurrence of the end of the phase-cut angle. A lamp assembly may include a lamp for generating light and a controller for controlling operation of the lamp, the controller comprising a timing control circuit for determining a period of a periodic signal received by the lamp assembly.

Abstract translation: 用于提供在其初级绕组上由后缘调光器驱动的磁变压器的负载和次级绕组之间的兼容性的系统和方法可以包括从磁变压器辅助信号确定输出信号的半行周期的周期 从所述磁性变压器二次信号中确定所述调光器的相位角的结束的估计出现，并且基于所述相位切换角度的所述周期的周期和所述估计出现，向所述负载产生驱动信号， 切角。 灯组件可以包括用于产生光的灯和用于控制灯的操作的控制器，所述控制器包括用于确定由灯组件接收的周期性信号的周期的定时控制电路。

公开(公告)号：US09024541B2

公开(公告)日：2015-05-05

申请号：US14201050

申请日：2014-03-07

Applicant: Cirrus Logic, Inc.

Inventor： Yanhui Xie ,  Michael A. Kost ,  John L. Melanson ,  Zhaohui He ,  Chris M. Franklin

IPC: H05B37/02 ,  H02M3/335 ,  H05B33/08

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。

公开(公告)号：US20140252981A1

公开(公告)日：2014-09-11

申请号：US14201050

申请日：2014-03-07

Applicant: Cirrus Logic, Inc.

Inventor： Yanhui Xie ,  Michael A. Kost ,  John L. Melanson ,  Zhaohui He ,  Chris M. Franklin

IPC: H02M3/335 ,  H05B33/08

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。

公开(公告)号：US09215770B2

公开(公告)日：2015-12-15

申请号：US14039355

申请日：2013-09-27

Applicant: Cirrus Logic, Inc.

Inventor： Poornima Mazumdar ,  Michael A. Kost ,  Yanhui Xie ,  Sahil Singh

IPC: H05B37/02 ,  H05B33/08

CPC classification number: H05B33/0818 ,  H05B33/0815

Abstract: A controller may be configured to: (i) predict based on an electronic transformer secondary signal an estimated occurrence of a high-resistance state of a trailing-edge dimmer coupled to a primary winding of an electronic transformer, wherein the high-resistance state occurs when the trailing-edge dimmer begins phase-cutting an alternating current voltage signal; (ii) operate a power converter in a trailing-edge exposure mode for a first period of time immediately prior to the estimated occurrence of the high-resistance state, such that the power converter is enabled to transfer energy from the secondary winding to the load during the trailing-edge exposure mode; and (iii) operate the power converter in a power mode for a second period of time prior to and non-contiguous with the first period of time, such that the power converter is enabled to transfer energy from the secondary winding to the load during the power mode.

Abstract translation: 控制器可以被配置为：（i）基于电子变压器次级信号预测耦合到电子变压器的初级绕组的后缘调光器的高电阻状态的估计出现，其中发生高电阻状态 当后缘调光器开始切割交流电压信号时; （ii）在估计出现高电阻状态之前的第一时间段内以后沿曝光模式操作功率转换器，使得功率转换器能够将能量从次级绕组传递到负载 在后缘曝光模式期间; 以及（iii）在第一时间段之前和不连续的第二时间段内以功率模式操作功率转换器，使得功率转换器能够在第一时间段期间将能量从次级绕组传递到负载 电源模式。

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。

公开(公告)号：US20140028214A1

公开(公告)日：2014-01-30

申请号：US14039355

申请日：2013-09-27

Applicant: Cirrus Logic, Inc.

Inventor： Poornima Mazumdar ,  Michael A. Kost ,  Yanhui Xie ,  Sahil Singh

IPC: H05B33/08

CPC classification number: H05B33/0818 ,  H05B33/0815

Abstract: A controller may be configured to: (i) predict based on an electronic transformer secondary signal an estimated occurrence of a high-resistance state of a trailing-edge dimmer coupled to a primary winding of an electronic transformer, wherein the high-resistance state occurs when the trailing-edge dimmer begins phase-cutting an alternating current voltage signal; (ii) operate a power converter in a trailing-edge exposure mode for a first period of time immediately prior to the estimated occurrence of the high-resistance state, such that the power converter is enabled to transfer energy from the secondary winding to the load during the trailing-edge exposure mode; and (iii) operate the power converter in a power mode for a second period of time prior to and non-contiguous with the first period of time, such that the power converter is enabled to transfer energy from the secondary winding to the load during the power mode.

Abstract translation: 控制器可以被配置为：（i）基于电子变压器次级信号预测耦合到电子变压器的初级绕组的后缘调光器的高电阻状态的估计出现，其中发生高电阻状态 当后缘调光器开始切割交流电压信号时; （ii）在估计出现高电阻状态之前的第一时间段内以后沿曝光模式操作功率转换器，使得功率转换器能够将能量从次级绕组传递到负载 在后缘曝光模式期间; 以及（iii）在第一时间段之前和不连续的第二时间段内以功率模式操作功率转换器，使得功率转换器能够在第一时间段期间将能量从次级绕组传递到负载 电源模式。

公开(公告)号：US20150061536A1

公开(公告)日：2015-03-05

申请号：US14266003

申请日：2014-04-30

Applicant: Cirrus Logic, Inc.

Inventor： Yanhui Xie ,  Sahil Singh ,  Michael A. Kost

IPC: H05B33/08 ,  H02M3/335

CPC classification number: H05B33/0845 ,  H02M1/425 ,  H05B33/0815 ,  Y02B70/126

Abstract: In accordance with embodiments of the present disclosure, an apparatus may comprise a controller to provide compatibility between a load and a secondary winding of an electronic transformer. The controller may be configured to operate a single-stage power converter in a first power mode for a first period of time, such that the single-stage power converter is enabled to transfer energy from the secondary winding to the load during the first power mode and operate the single-stage power converter in a second power mode for a second period of time prior to the first period of time, such that the single-stage power converter is enabled to transfer energy from the secondary winding to the load during the second power mode, wherein the first power mode and the second power mode occur within a half-line cycle of an electronic transformer secondary signal present on the secondary winding.

Abstract translation: 根据本公开的实施例，装置可以包括控制器，以提供电子变压器的负载和次级绕组之间的兼容性。 控制器可以被配置为在第一时间段内以第一功率模式操作单级功率转换器，使得单级功率转换器能够在第一功率模式期间将能量从次级绕组传递到负载 以及在所述第一时间段之前的第二时间段内以第二功率模式操作所述单级功率转换器，使得所述单级功率转换器能够在第二时间段期间将能量从所述次级绕组传递到所述负载 功率模式，其中第一功率模式和第二功率模式发生在次级绕组上存在的电子变压器次级信号的半线周期内。