公开(公告)号：US10045406B2

公开(公告)日：2018-08-07

申请号：US14256573

申请日：2014-04-18

Applicant: Cree, Inc.

Inventor： Jun Zhang

IPC: H05B33/08

CPC classification number: H05B33/0809 ,  Y02B20/383 ,  Y02B20/386

Abstract: A lighting apparatus includes a solid-state lighting circuit, at least one ballast connection port and at least one low-frequency blocking impedance coupling the at least one ballast connection port to the solid-state lighting circuit. In some embodiments, the at least one low-frequency blocking impedance may be configured to block a DC offset. In further embodiments, the at least one low-frequency blocking impedance may be configured to block a nominally 60 Hz frequency component. The at least one ballast connection port may include a first ballast connection port and a second ballast connection port and the at least one low-frequency blocking impedance may include a first low-frequency blocking impedance coupling the first ballast connection port to a first terminal of the solid-state lighting circuit and a second low-frequency blocking impedance coupling the second ballast connection port to a second input terminal of the solid-state lighting circuit.

公开(公告)号：US20140225520A1

公开(公告)日：2014-08-14

申请号：US14256573

申请日：2014-04-18

Applicant: Cree, Inc.

Inventor： Jun Zhang

IPC: H05B33/08

CPC classification number: H05B33/0809 ,  Y02B20/383

Abstract: A lighting apparatus includes a solid-state lighting circuit, at least one ballast connection port and at least one low-frequency blocking impedance coupling the at least one ballast connection port to the solid-state lighting circuit. In some embodiments, the at least one low-frequency blocking impedance may be configured to block a DC offset. In further embodiments, the at least one low-frequency blocking impedance may be configured to block a nominally 60 Hz frequency component. The at least one ballast connection port may include a first ballast connection port and a second ballast connection port and the at least one low-frequency blocking impedance may include a first low-frequency blocking impedance coupling the first ballast connection port to a first terminal of the solid-state lighting circuit and a second low-frequency blocking impedance coupling the second ballast connection port to a second input terminal of the solid-state lighting circuit.

Abstract translation: 照明装置包括固态照明电路，至少一个镇流器连接端口和将至少一个镇流器连接端口耦合到固态照明电路的至少一个低频阻塞阻抗。 在一些实施例中，至少一个低频阻塞阻抗可以被配置为阻挡DC偏移。 在另外的实施例中，所述至少一个低频阻塞阻抗可以被配置为阻止标称的60Hz频率分量。 所述至少一个镇流器连接端口可以包括第一镇流器连接端口和第二镇流器连接端口，并且所述至少一个低频阻塞阻抗可以包括将第一镇流器连接端口耦合到第一镇流器连接端口的第一端子的第一低频阻塞阻抗 固态照明电路和将第二镇流器连接端口耦合到固态点亮电路的第二输入端子的第二低频阻塞阻抗。

公开(公告)号：US20140204571A1

公开(公告)日：2014-07-24

申请号：US13943455

申请日：2013-07-16

Applicant: Cree, Inc.

Inventor： Jun Zhang ,  James Andrew McBryde

IPC: H05B33/08 ,  F21K99/00

CPC classification number: H05B33/0809 ,  F21K9/27 ,  F21Y2103/10 ,  F21Y2107/90 ,  F21Y2115/10 ,  Y02B20/342 ,  Y02B20/383

Abstract: An apparatus for interfacing a ballast to at least one light emitting diode (LED) includes a passive rectifier circuit and matching circuit coupled to an input port and/or an output port of the passive rectifier circuit and configured to at least partially match an impedance of the ballast.

Abstract translation: 用于将镇流器连接到至少一个发光二极管（LED）的装置包括无源整流器电路和匹配电路，其耦合到无源整流器电路的输入端口和/或输出端口，并且被配置为至少部分匹配 镇流器

公开(公告)号：US20140203717A1

公开(公告)日：2014-07-24

申请号：US14055264

申请日：2013-10-16

Applicant: Cree, Inc.

Inventor： Jun Zhang

IPC: H05B33/08

CPC classification number: H05B33/0809 ,  Y02B20/383 ,  Y02B20/386

Abstract: A lighting apparatus includes a solid-state lighting circuit, a ballast connection port including first and second terminals and a filament-imitating impedance coupled between the first and a second terminals of the ballast connection port and to an input terminal of the solid-state lighting circuit. The filament-imitating impedance may be configured to transfer power at a nominal frequency of an output produced by the ballast and to provide an impedance between the first and second terminals of the ballast connection port that prevents shutdown of the ballast. In some embodiments, the filament-imitating impedance may vary with temperature, e.g., the filament-imitating impedance may be configured to imitate a temperature dependence of a fluorescent tube filament. The lighting apparatus may be included in a fluorescent lamp replacement lamp.

Abstract translation: 照明装置包括固态照明电路，包括第一和第二端子的镇流器连接端口和耦合在镇流器连接端口的第一和第二端子与固态照明的输入端子之间的灯丝模拟阻抗 电路。 灯丝模拟阻抗可以被配置为以镇流器产生的输出的标称频率传输功率，并且在镇流器连接端口的第一和第二端子之间提供阻抗，以防止镇流器的关闭。 在一些实施方案中，灯丝模拟阻抗可以随温度变化，例如，灯丝模拟阻抗可以被配置为模拟荧光管灯丝的温度依赖性。 照明装置可以包括在荧光灯替换灯中。

公开(公告)号：US20170006673A1

公开(公告)日：2017-01-05

申请号：US14789520

申请日：2015-07-01

Applicant: Cree, Inc.

Inventor： Daniel Pope ,  Jun Zhang ,  Michael B. Gilliom

IPC: H05B33/08 ,  H05B37/02

CPC classification number: H05B33/0815 ,  H05B33/0845 ,  H05B33/086 ,  H05B37/0218 ,  H05B37/0227 ,  H05B37/0254 ,  Y02B20/46

Abstract: According to one aspect, a control system for an LED luminaire includes a dimming control circuit that develops an analog dimming command signal that is variable between zero volts and ten volts to command LED brightness. The control system further includes a modulation circuit coupled to the dimming control circuit. The modulation circuit modifies the analog dimming command signal so as to include digital data for further commanding a parameter of LED operation.

Abstract translation: 根据一个方面，一种用于LED灯具的控制系统包括调光控制电路，其开发可在零伏和十伏之间变化的模拟调光命令信号以指示LED亮度。 控制系统还包括耦合到调光控制电路的调制电路。 调制电路修改模拟调光命令信号，以便包含用于进一步命令LED操作参数的数字数据。