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公开(公告)号：US20140354170A1
公开(公告)日：2014-12-04
申请号：US14290584
申请日：2014-05-29
Applicant: Lutron Electronics Co., Inc.
Inventor： Timothy P. Gredler , Matthew R. Zartman
CPC classification number: H05B33/0845 , H05B33/0812 , H05B33/0815 , H05B33/0851 , H05B33/0887 , H05B33/089 , H05B37/02 , H05B37/0209
Abstract: A load control device for controlling the intensity of a lighting load, such as a light-emitting diode (LED) light source, may include a power converter circuit operable to receive a rectified AC voltage and to generate a DC bus voltage, a load regulation circuit operable to receive the bus voltage and to control the magnitude of a load current conducted through the lighting load, and a control circuit operatively coupled to the load regulation circuit for pulse width modulating or pulse frequency modulating the load current to control the intensity of the lighting load to a target intensity. The control circuit may control the intensity of the lighting load by pulse width modulating the load current when the target intensity is above a predetermined threshold and control the intensity of the lighting load by pulse frequency modulating the load current when the target intensity is below the predetermined threshold.
Abstract translation: 用于控制诸如发光二极管（LED）光源的照明负载强度的负载控制装置可以包括功率转换器电路，其可操作以接收经整流的AC电压并产生DC总线电压，负载调节 电路，其可操作以接收总线电压并且控制通过照明负载传导的负载电流的大小，以及可操作地耦合到负载调节电路的控制电路，用于脉宽调制或脉冲频率调制负载电流以控制负载电流的强度 照明负载到目标强度。 控制电路可以通过在目标强度高于预定阈值时对负载电流进行脉冲宽度调制来控制照明负载的强度，并且当目标强度低于预定阈值时通过脉冲频率调制负载电流来控制照明负载的强度 阈。
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公开(公告)号：US20190008012A1
公开(公告)日：2019-01-03
申请号：US16127163
申请日：2018-09-10
Applicant: Lutron Electronics Co., Inc.
Inventor： Robert D. Stevens, JR. , Matthew R. Zartman
CPC classification number: H05B33/0848 , H05B33/0812 , H05B33/0815 , H05B33/0845 , H05B33/0851 , H05B37/0272 , H05B37/0281
Abstract: A load control device for an electrical load may operate in a normal mode and a burst mode to adjust the amount of power delivered to the electrical load. The load control device may comprise a control circuit that operates in the normal mode to regulate an average magnitude of a load current conducted through the load between a maximum rated current and a minimum rated current. During the normal mode, the control circuit may control the operating period of a load regulation circuit between a high-end operating period and a low-end operating period. The control circuit may operate in the burst mode to regulate the average magnitude of the load current below the minimum rated current. During the burst mode, the control circuit may adjust the low-end operating period to be less than or equal to a minimum on time of the load regulation circuit.
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公开(公告)号：US10004131B2
公开(公告)日：2018-06-19
申请号：US15258961
申请日：2016-09-07
Applicant: LUTRON ELECTRONICS CO., INC.
Inventor： Venkatesh Chitta , Russell L. MacAdam , Matthew R. Zartman
IPC: H05B41/298 , H05B41/30 , H05B41/36 , H05B41/39 , H05B37/02 , H05B41/38 , H05B41/392 , H05B33/08
CPC classification number: H05B41/39 , H05B33/0809 , H05B33/0845 , H05B37/02 , H05B41/38 , H05B41/392
Abstract: An electronic dimming ballast or light emitting diode (LED) driver for driving a gas discharge lamp or LED lamp may be operable to control the lamp to avoid flickering and flashing of the lamp during low temperature or low mercury conditions. Such a ballast or driver may include a control circuit that is operable to adjust the intensity of the lamp. Adjusting the intensity of the lamp may include decreasing the intensity of the lamp. The control circuit may be operable to stop adjustment of the intensity of the lamp if a magnitude of the lamp voltage across the lamp is greater than an upper threshold, and subsequently begin to adjust the intensity of the lamp when the lamp voltage across the lamp is less than a lower threshold. Subsequently beginning to adjust the intensity of the lamp may include subsequently decreasing the intensity of the lamp.
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公开(公告)号：US09814112B2
公开(公告)日：2017-11-07
申请号：US15460973
申请日：2017-03-16
Applicant: Lutron Electronics Co., Inc.
Inventor： Timothy P. Gredler , Matthew R. Zartman
CPC classification number: H05B33/0845 , H05B33/0812 , H05B33/0815 , H05B33/0851 , H05B33/0887 , H05B33/089 , H05B37/02 , H05B37/0209
Abstract: A load control device for controlling the intensity of a lighting load, such as a light-emitting diode (LED) light source, may include a power converter circuit operable to receive a rectified AC voltage and to generate a DC bus voltage, a load regulation circuit operable to receive the bus voltage and to control the magnitude of a load current conducted through the lighting load, and a control circuit operatively coupled to the load regulation circuit for pulse width modulating or pulse frequency modulating the load current to control the intensity of the lighting load to a target intensity. The control circuit may control the intensity of the lighting load by pulse width modulating the load current when the target intensity is above a predetermined threshold and control the intensity of the lighting load by pulse frequency modulating the load current when the target intensity is below the predetermined threshold.
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公开(公告)号：US20170238386A1
公开(公告)日：2017-08-17
申请号：US15583425
申请日：2017-05-01
Applicant: Lutron Electronics Co., Inc.
Inventor： Robert D. Stevens, JR. , Matthew R. Zartman
CPC classification number: H05B33/0848 , H05B33/0812 , H05B33/0815 , H05B33/0845 , H05B33/0851 , H05B37/0272 , H05B37/0281
Abstract: A load control device for an electrical load may operate in a normal mode and a burst mode to adjust the amount of power delivered to the electrical load. The load control device may comprise a control circuit that operates in the normal mode to regulate an average magnitude of a load current conducted through the load between a maximum rated current and a minimum rated current. During the normal mode, the control circuit may control the operating period of a load regulation circuit between a high-end operating period and a low-end operating period. The control circuit may operate in the burst mode to regulate the average magnitude of the load current below the minimum rated current. During the burst mode, the control circuit may adjust the low-end operating period to be less than or equal to a minimum on time of the load regulation circuit.
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Patent Agency Ranking
公开(公告)号：US20150319817A1
公开(公告)日：2015-11-05
申请号：US14796278
申请日：2015-07-10
Applicant: Lutron Electronics Co., Inc.
Inventor： Timothy P. Gredler , Matthew R. Zartman
CPC classification number: H05B33/0845 , H05B33/0812 , H05B33/0815 , H05B33/0851 , H05B33/0887 , H05B33/089 , H05B37/02 , H05B37/0209
Abstract: A load control device for controlling the intensity of a lighting load, such as a light-emitting diode (LED) light source, may include a power converter circuit operable to receive a rectified AC voltage and to generate a DC bus voltage, a load regulation circuit operable to receive the bus voltage and to control the magnitude of a load current conducted through the lighting load, and a control circuit operatively coupled to the load regulation circuit for pulse width modulating or pulse frequency modulating the load current to control the intensity of the lighting load to a target intensity. The control circuit may control the intensity of the lighting load by pulse width modulating the load current when the target intensity is above a predetermined threshold and control the intensity of the lighting load by pulse frequency modulating the load current when the target intensity is below the predetermined threshold.
Abstract translation: 用于控制诸如发光二极管（LED）光源的照明负载强度的负载控制装置可以包括功率转换器电路，其可操作以接收经整流的AC电压并产生DC总线电压，负载调节 电路，其可操作以接收总线电压并且控制通过照明负载传导的负载电流的大小，以及可操作地耦合到负载调节电路的控制电路，用于脉宽调制或脉冲频率调制负载电流以控制负载电流的强度 照明负载到目标强度。 控制电路可以通过在目标强度高于预定阈值时对负载电流进行脉冲宽度调制来控制照明负载的强度，并且当目标强度低于预定阈值时通过脉冲频率调制负载电流来控制照明负载的强度 阈。
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公开(公告)号：US09113521B2
公开(公告)日：2015-08-18
申请号：US14290584
申请日：2014-05-29
Applicant: Lutron Electronics Co., Inc.
Inventor： Timothy P. Gredler , Matthew R. Zartman
CPC classification number: H05B33/0845 , H05B33/0812 , H05B33/0815 , H05B33/0851 , H05B33/0887 , H05B33/089 , H05B37/02 , H05B37/0209
Abstract: A load control device for controlling the intensity of a lighting load, such as a light-emitting diode (LED) light source, may include a power converter circuit operable to receive a rectified AC voltage and to generate a DC bus voltage, a load regulation circuit operable to receive the bus voltage and to control the magnitude of a load current conducted through the lighting load, and a control circuit operatively coupled to the load regulation circuit for pulse width modulating or pulse frequency modulating the load current to control the intensity of the lighting load to a target intensity. The control circuit may control the intensity of the lighting load by pulse width modulating the load current when the target intensity is above a predetermined threshold and control the intensity of the lighting load by pulse frequency modulating the load current when the target intensity is below the predetermined threshold.
Abstract translation: 用于控制诸如发光二极管（LED）光源的照明负载强度的负载控制装置可以包括功率转换器电路，其可操作以接收经整流的AC电压并产生DC总线电压，负载调节 电路，其可操作以接收总线电压并且控制通过照明负载传导的负载电流的大小，以及可操作地耦合到负载调节电路的控制电路，用于脉宽调制或脉冲频率调制负载电流以控制负载电流的强度 照明负载到目标强度。 控制电路可以通过在目标强度高于预定阈值时对负载电流进行脉冲宽度调制来控制照明负载的强度，并且当目标强度低于预定阈值时通过脉冲频率调制负载电流来控制照明负载的强度 阈。
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公开(公告)号：US10257897B2
公开(公告)日：2019-04-09
申请号：US15953812
申请日：2018-04-16
Applicant: Lutron Electronics Co., Inc.
Inventor： Timothy P. Gredler , Matthew R. Zartman
Abstract: A load control device for controlling the intensity of a lighting load, such as a light-emitting diode (LED) light source, may include a power converter circuit operable to receive a rectified AC voltage and to generate a DC bus voltage, a load regulation circuit operable to receive the bus voltage and to control the magnitude of a load current conducted through the lighting load, and a control circuit operatively coupled to the load regulation circuit for pulse width modulating or pulse frequency modulating the load current to control the intensity of the lighting load to a target intensity. The control circuit may control the intensity of the lighting load by pulse width modulating the load current when the target intensity is above a predetermined threshold and control the intensity of the lighting load by pulse frequency modulating the load current when the target intensity is below the predetermined threshold.
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公开(公告)号：US20190069382A1
公开(公告)日：2019-02-28
申请号：US16173514
申请日：2018-10-29
Applicant: Lutron Electronics Co., Inc.
Inventor： Venkatesh Chitta , Russell L. MacAdam , Matthew R. Zartman
IPC: H05B41/39 , H05B33/08 , H05B37/02 , H05B41/392 , H05B41/38
CPC classification number: H05B41/39 , H05B33/0809 , H05B33/0845 , H05B37/02 , H05B41/38 , H05B41/392
Abstract: An electronic dimming ballast or light emitting diode (LED) driver for driving a gas discharge lamp or LED lamp may be operable to control the lamp to avoid flickering and flashing of the lamp during low temperature or low mercury conditions. Such a ballast or driver may include a control circuit that is operable to adjust the intensity of the lamp. Adjusting the intensity of the lamp may include decreasing the intensity of the lamp. The control circuit may be operable to stop adjustment of the intensity of the lamp if a magnitude of the lamp voltage across the lamp is greater than an upper threshold, and subsequently begin to adjust the intensity of the lamp when the lamp voltage across the lamp is less than a lower threshold. Subsequently beginning to adjust the intensity of the lamp may include subsequently decreasing the intensity of the lamp.
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公开(公告)号：US10104735B2
公开(公告)日：2018-10-16
申请号：US15583425
申请日：2017-05-01
Applicant: Lutron Electronics Co., Inc.
Inventor： Robert D. Stevens, Jr. , Matthew R. Zartman
Abstract: A load control device for an electrical load may operate in a normal mode and a burst mode to adjust the amount of power delivered to the electrical load. The load control device may comprise a control circuit that operates in the normal mode to regulate an average magnitude of a load current conducted through the load between a maximum rated current and a minimum rated current. During the normal mode, the control circuit may control the operating period of a load regulation circuit between a high-end operating period and a low-end operating period. The control circuit may operate in the burst mode to regulate the average magnitude of the load current below the minimum rated current. During the burst mode, the control circuit may adjust the low-end operating period to be less than or equal to a minimum on time of the load regulation circuit.
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