公开(公告)号：US20140167639A1

公开(公告)日：2014-06-19

申请号：US13903591

申请日：2013-05-28

Applicant: Cirrus Logic, Inc.

Inventor： Eric J. King ,  Daniel J. Baker ,  John L. Melanson

IPC: F21V23/02

CPC classification number: F21V23/02 ,  H05B33/0815

Abstract: Methods and systems to provide compatibility between a load and a secondary winding of an electronic transformer driven by a leading-edge dimmer may include: (a) responsive to determining that energy is available from the electronic transformer, drawing a requested amount of power from the electronic transformer thus transferring energy from the electronic transformer to an energy storage device in accordance with the requested amount of power; and (b) transferring energy from the energy storage device to the load at a rate such that a voltage of the energy storage device is regulated within a predetermined voltage range.

Abstract translation: 提供由前缘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方法和系统可以包括：（a）响应于确定来自电子变压器的能量可用，从 电子变压器，因此根据所要求的功率量将能量从电子变压器传输到能量存储装置; 和（b）以能够将能量存储装置的电压调节到规定的电压范围内的速度将能量从能量存储装置传递给负载。

公开(公告)号：US20130221871A1

公开(公告)日：2013-08-29

申请号：US13774914

申请日：2013-02-22

Applicant: CIRRUS LOGIC, INC.

Inventor： Eric J. King ,  John L. Melanson ,  Daniel J. Baker

IPC: H05B37/02

CPC classification number: H05B37/02 ,  H05B33/0815 ,  H05B33/0845

Abstract: In at least one embodiment, a system and method provide current compensation in a lighting system by controlling a lamp current to prevent a current through a triac-based dimmer from undershooting a holding current value. In at least one embodiment, at least one of the lamps includes a controller that controls circuitry in the lamp to draw more lamp current for a period of time than needed to illuminate a brightness of the lamp at a level corresponding to particular phase-cut angle of the supply voltage. By drawing more current than needed, the controller increases the dimmer current during the period of time to prevent the dimmer current from falling below the holding current value. In at least one embodiment, the period of time corresponds to a compensating pulse of the lamp current at a time when the dimmer current would otherwise fall below the holding current value.

Abstract translation: 在至少一个实施例中，系统和方法通过控制灯电流来提供照明系统中的电流补偿，以防止通过基于三端双向可控硅开关控制器的调光器的电流低于保持电流值。 在至少一个实施例中，灯中的至少一个包括控制器，该控制器控制灯中的电路，以在比与特定相切角对应的水平下照亮灯的亮度所需的时间段吸取更多的灯电流 的电源电压。 通过吸收比所需更多的电流，控制器在一段时间内增加调光器电流，以防止调光器电流降至保持电流值以下。 在至少一个实施例中，该时间段对应于当调光电流否则将低于保持电流值时的灯电流的补偿脉冲。

公开(公告)号：US20140167652A1

公开(公告)日：2014-06-19

申请号：US13903632

申请日：2013-05-28

Applicant: Cirrus Logic, Inc.

Inventor： Eric J. King ,  Daniel J. Baker ,  John L. Melanson

IPC: H05B33/08

CPC classification number: F21V23/02 ,  H05B33/0815

Abstract: In accordance with systems and methods of the present disclosure, an apparatus may include a power converter and a controller. The controller may be configured to monitor a voltage at an input of the power converter, cause the power controller to transfer energy from the input to a load at a target current, decrease the target current responsive to determining that the voltage is less than or equal to an undervoltage threshold, and increase the target current responsive to determining that the voltage is greater than or equal to a maximum threshold voltage.

Abstract translation: 根据本公开的系统和方法，装置可以包括功率转换器和控制器。 控制器可以被配置为监视功率转换器的输入处的电压，使得功率控制器将能量从输入传递到目标电流的负载，响应于确定电压小于或等于 响应于确定电压大于或等于最大阈值电压而增加目标电流。

公开(公告)号：US09273858B2

公开(公告)日：2016-03-01

申请号：US13903591

申请日：2013-05-28

Applicant: Cirrus Logic, Inc.

Inventor： Eric Jerome King ,  Daniel J. Baker ,  John L. Melanson

IPC: H05B37/00 ,  F21V23/02 ,  H05B33/08

CPC classification number: F21V23/02 ,  H05B33/0815

Abstract: Methods and systems to provide compatibility between a load and a secondary winding of an electronic transformer driven by a leading-edge dimmer may include: (a) responsive to determining that energy is available from the electronic transformer, drawing a requested amount of power from the electronic transformer thus transferring energy from the electronic transformer to an energy storage device in accordance with the requested amount of power; and (b) transferring energy from the energy storage device to the load at a rate such that a voltage of the energy storage device is regulated within a predetermined voltage range.

Abstract translation: 提供由前缘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方法和系统可以包括：（a）响应于确定来自电子变压器的能量可用，从 电子变压器，因此根据所要求的功率量将能量从电子变压器传输到能量存储装置; 和（b）以能够将能量存储装置的电压调节到规定的电压范围内的速度将能量从能量存储装置传递给负载。

公开(公告)号：US09167662B2

公开(公告)日：2015-10-20

申请号：US13774914

申请日：2013-02-22

Applicant: Cirrus Logic, Inc.

Inventor： Eric J. King ,  John L. Melanson ,  Daniel J. Baker ,  Mohit Sood ,  Rahul Singh

IPC: H05B37/02 ,  H05B33/08

CPC classification number: H05B37/02 ,  H05B33/0815 ,  H05B33/0845

Abstract: In at least one embodiment, a system and method provide current compensation in a lighting system by controlling a lamp current to prevent a current through a triac-based dimmer from undershooting a holding current value. In at least one embodiment, at least one of the lamps includes a controller that controls circuitry in the lamp to draw more lamp current for a period of time than needed to illuminate a brightness of the lamp at a level corresponding to particular phase-cut angle of the supply voltage. By drawing more current than needed, the controller increases the dimmer current during the period of time to prevent the dimmer current from falling below the holding current value. In at least one embodiment, the period of time corresponds to a compensating pulse of the lamp current at a time when the dimmer current would otherwise fall below the holding current value.

Abstract translation: 在至少一个实施例中，系统和方法通过控制灯电流来提供照明系统中的电流补偿，以防止通过基于三端双向可控硅开关控制器的调光器的电流低于保持电流值。 在至少一个实施例中，灯中的至少一个包括控制器，该控制器控制灯中的电路，以在比与特定相切角对应的水平下照亮灯的亮度所需的时间段吸取更多的灯电流 的电源电压。 通过吸收比所需更多的电流，控制器在一段时间内增加调光器电流，以防止调光器电流降至保持电流值以下。 在至少一个实施例中，该时间段对应于当调光电流否则将低于保持电流值时的灯电流的补偿脉冲。