公开(公告)号：US10149363B2

公开(公告)日：2018-12-04

申请号：US15144747

申请日：2016-05-02

Applicant: LedEngin, Inc.

Inventor： Xiantao Yan ,  Kachun Lee ,  David Tahmassebi

IPC: G01R31/18 ,  H05B33/08 ,  H05B33/10

Abstract: A method for making a light-emitting diode (LED) emitter module includes providing a substrate and providing two or more groups of LED dies disposed on the substrate. Each group has one or more LED dies, and each of the LED dies is coupled to an electrical contact and electrical paths are configured for feeding separate electrical currents to the groups of LED dies. The method also includes determining information associating a plurality output light colors with a corresponding plurality of combinations of electrical currents, each combination specifying a plurality of electrical current values, each electrical current value being associated with an LED die from one of the two or more groups of LED dies. The method also includes storing the information in the memory device, and providing a circuit for accessing the information in the memory device.

公开(公告)号：US09642206B2

公开(公告)日：2017-05-02

申请号：US14952648

申请日：2015-11-25

Applicant: LedEngin, Inc.

Inventor： Xiantao Yan ,  Kachun Lee

IPC: H01L33/48 ,  H01L33/62 ,  H01L25/075 ,  H05B33/08

CPC classification number: H05B33/0857 ,  H01L25/0753 ,  H01L33/62 ,  H01L2924/0002 ,  H01L2924/15174 ,  H05B33/0869 ,  H01L2924/00

Abstract: A substrate for an LED emitter includes a body with a recess region formed therein. Bonding pads are disposed within the recess region, including LED bonding pads for LEDs and supporting chip bonding pads for one or more semiconductor chips that provide supporting circuitry (e.g., driver and/or controller circuitry) to support operation of the LEDs. External electrical contacts can be disposed outside the recess region. Electrical paths, disposed at least partially within the body of the substrate, connect the external electrical contacts to a first subset of the supporting chip bonding pads and connect a second subset of the supporting chip bonding pads to the plurality of LED bonding pads such that one or more supporting chips connected to the controller pads can be operated to deliver different operating currents to different ones of the LEDs.

公开(公告)号：US20140084796A1

公开(公告)日：2014-03-27

申请号：US14091914

申请日：2013-11-27

Applicant: LedEngin, Inc.

Inventor： Xiantao Yan ,  Kachun Lee ,  Zequn Mei

IPC: H05B33/08

CPC classification number: H05B33/0869 ,  H05B33/0827 ,  H05B33/086 ,  H05B33/0863

Abstract: The color of an LED-based lamp can be tuned to a desired color or color temperature. The lamp can include two or more independently addressable groups of LEDs associated with different colors or color temperatures and a total-internal-reflection (TIR) color-mixing lens to produce light of a uniform color by mixing the light from the different groups of LEDs. The color of the output light is tuned by controllably dividing an input current among the groups of LEDs. Tuning can be performed once, e.g., during manufacture, and the lamp does not require active feedback components for maintaining color temperature.

Abstract translation: 基于LED的灯的颜色可以调节到所需的颜色或色温。 灯可以包括与不同颜色或色温相关联的两个或更多个可独立寻址的LED组，以及全内反射（TIR）混色透镜，以通过混合来自不同组的LED的光来产生均匀颜色的光 。 通过可控地划分LED组中的输入电流来调节输出光的颜色。 调谐可以执行一次，例如在制造期间，并且灯不需要用于维持色温的主动反馈部件。

公开(公告)号：US20180132329A1

公开(公告)日：2018-05-10

申请号：US15348940

申请日：2016-11-10

Applicant: LedEngin, Inc.

Inventor： Xiantao Yan ,  Kachun Lee ,  Shifan Cheng ,  Julio Cesar Alvarado

IPC: H05B33/08 ,  H01L25/075 ,  H01L33/62 ,  H01L33/48 ,  H01L33/54 ,  H01L33/56 ,  H01L33/58

CPC classification number: H05B33/0857 ,  H01L25/0753 ,  H01L33/483 ,  H01L33/54 ,  H01L33/56 ,  H01L33/58 ,  H01L33/62 ,  H05B33/0827 ,  H05B33/0845 ,  H05B33/086

Abstract: A light emitting device can include a substrate with LED chips disposed on a surface of the substrate. The LED chips can include chips of at least four different colors. Electrical paths disposed in part on the substrate and in part within the substrate can connect the LED chips into at least three independently addressable groups, and the number of independently addressable groups can be less than the number of colors of LED chips, so that at least one of the groups includes LED chips of two or more different colors.

公开(公告)号：US20180007759A1

公开(公告)日：2018-01-04

申请号：US15487317

申请日：2017-04-13

Applicant: LedEngin, Inc.

Inventor： Xiantao Yan ,  Kachun Lee

IPC: H05B33/08 ,  H01L25/075 ,  H01L33/62

CPC classification number: H05B33/0857 ,  H01L25/0753 ,  H01L33/62 ,  H01L2924/0002 ,  H01L2924/15174 ,  H05B33/0869 ,  H01L2924/00

Abstract: A substrate for an LED emitter includes a body with a recess region formed therein. Bonding pads are disposed within the recess region, including LED bonding pads for LEDs and supporting chip bonding pads for one or more semiconductor chips that provide supporting circuitry (e.g., driver and/or controller circuitry) to support operation of the LEDs. External electrical contacts can be disposed outside the recess region. Electrical paths, disposed at least partially within the body of the substrate, connect the external electrical contacts to a first subset of the supporting chip bonding pads and connect a second subset of the supporting chip bonding pads to the plurality of LED bonding pads such that one or more supporting chips connected to the controller pads can be operated to deliver different operating currents to different ones of the LEDs.

公开(公告)号：US20160149088A1

公开(公告)日：2016-05-26

申请号：US14952648

申请日：2015-11-25

Applicant: LedEngin, Inc.

Inventor： Xiantao Yan ,  Kachun Lee

IPC: H01L33/48 ,  H01L33/62 ,  H05B33/08 ,  H01L25/075

CPC classification number: H05B33/0857 ,  H01L25/0753 ,  H01L33/62 ,  H01L2924/0002 ,  H01L2924/15174 ,  H05B33/0869 ,  H01L2924/00

Abstract: A substrate for an LED emitter includes a body with a recess region formed therein. Bonding pads are disposed within the recess region, including LED bonding pads for LEDs and supporting chip bonding pads for one or more semiconductor chips that provide supporting circuitry (e.g., driver and/or controller circuitry) to support operation of the LEDs. External electrical contacts can be disposed outside the recess region. Electrical paths, disposed at least partially within the body of the substrate, connect the external electrical contacts to a first subset of the supporting chip bonding pads and connect a second subset of the supporting chip bonding pads to the plurality of LED bonding pads such that one or more supporting chips connected to the controller pads can be operated to deliver different operating currents to different ones of the LEDs.

Abstract translation: 一种用于LED发射器的衬底包括其中形成有凹陷区的主体。 接合焊盘设置在凹陷区域内，包括用于LED的LED焊盘和用于一个或多个半导体芯片的支撑芯片焊盘，其提供支持电路（例如，驱动器和/或控制器电路）以支持LED的操作。 外部电触点可以设置在凹陷区域的外部。 至少部分地设置在基板主体内的电路径将外部电触点连接到支撑芯片焊盘的第一子集，并将支撑芯片焊盘的第二子集连接到多个LED焊盘，使得一个 可以操作连接到控制器焊盘的多个支撑芯片以将不同的工作电流传送到不同的LED。

公开(公告)号：US09345095B2

公开(公告)日：2016-05-17

申请号：US13781162

申请日：2013-02-28

Applicant: LedEngin, Inc.

Inventor： Xiantao Yan ,  Kachun Lee ,  David Tahmassebi

IPC: H05B37/00 ,  H05B33/08 ,  H05B33/10

CPC classification number: H05B33/0857 ,  H05B33/0815 ,  H05B33/086 ,  H05B33/10 ,  Y10T29/49004

Abstract: A light-emitting diode (LED) emitter module includes a substrate having a plurality of base layers of an electrically insulating material, a plurality of electrical contacts disposed on a top one of the base layer, and a plurality of electrical paths coupled to the electrical contacts, wherein at least a portion of the plurality of electrical paths is disposed between the base layers. The emitter module also includes two or more groups of light-emitting diodes (LEDs), each group having one or more LEDs, and each of the LEDs is coupled to an electrical contact. The electrical paths are configured for feeding separate electrical currents to the groups of LEDs. The emitter module also includes a memory device containing information associating a plurality of output light colors with a corresponding plurality of combinations of electrical currents, each combination specifying an electric current for each of the two or more groups of LEDs.

Abstract translation: 发光二极管（LED）发射器模块包括具有电绝缘材料的多个基底层的基底，设置在基底层顶部的多个电触点，以及耦合到电气 触点，其中所述多个电路径的至少一部分设置在所述基底层之间。 发射器模块还包括两组或更多组发光二极管（LED），每组具有一个或多个LED，并且每个LED耦合到电触点。 电路被配置为将不同的电流馈送到LED组。 发射器模块还包括存储装置，其包含将多个输出光色与相应的多个电流组合相关联的信息，每个组合指定两组或更多组LED中的每一组的电流。

公开(公告)号：US20160044753A1

公开(公告)日：2016-02-11

申请号：US14813026

申请日：2015-07-29

Applicant: LedEngin, Inc.

Inventor： Kachun Lee

IPC: H05B33/08 ,  H03K7/08

CPC classification number: H05B33/086 ,  H03K7/08 ,  H05B33/0824 ,  H05B33/0872

Abstract: A first sequence of pulses having a high frequency can be modulated using a second sequence of pulses having a lower frequency. The pulse width of the second sequence of pulses can be perturbed from a nominal pulse width on a per-pulse basis, within a perturbation range corresponding to the pulse period of the first sequence of pulses. In one application, the resulting output can be used to drive LEDs. In some instances, two or more channels of LEDs of different colors can be supported, with the pulse width of the first pulse sequence being selected per-channel based on a desired light color and the nominal pulse width of the second pulse sequence being selected for all channels based on a desired brightness.

Abstract translation: 可以使用具有较低频率的第二脉冲序列来调制具有高频率的第一脉冲序列。 在对应于第一脉冲序列的脉冲周期的扰动范围内，第二脉冲序列的脉冲宽度可以从基于每脉冲的标称脉冲宽度扰动。 在一个应用中，产生的输出可用于驱动LED。 在一些情况下，可以支持不同颜色的两个或更多个通道的LED，其中基于期望的光色选择每个通道的第一脉冲序列的脉冲宽度，并且选择第二脉冲序列的标称脉冲宽度 所有通道基于所需的亮度。

公开(公告)号：US11032884B2

公开(公告)日：2021-06-08

申请号：US16193606

申请日：2018-11-16

Applicant: LedEngin, Inc.

Inventor： Xiantao Yan ,  Kachun Lee ,  David Tahmassebi

IPC: G01R31/18 ,  H05B45/20 ,  H05B33/10 ,  H05B45/00 ,  H05B45/37

Abstract: A method for making a light-emitting diode (LED) emitter module includes providing a substrate and providing two or more groups of LED dies disposed on the substrate. Each group has one or more LED dies, and each of the LED dies is coupled to an electrical contact and electrical paths are configured for feeding separate electrical currents to the groups of LED dies. The method also includes determining information associating a plurality output light colors with a corresponding plurality of combinations of electrical currents, each combination specifying a plurality of electrical current values, each electrical current value being associated with an LED die from one of the two or more groups of LED dies. The method also includes storing the information in the memory device, and providing a circuit for accessing the information in a memory device.

公开(公告)号：US09560713B2

公开(公告)日：2017-01-31

申请号：US14244787

申请日：2014-04-03

Applicant: LedEngin, Inc.

Inventor： Kachun Lee ,  Xiantao Yan ,  Zequn Mei

IPC: H05B37/00 ,  H05B39/00 ,  H05B41/00 ,  H05B33/08 ,  H05B37/02

CPC classification number: H05B33/086 ,  H05B33/0815 ,  H05B33/0818 ,  H05B33/0827 ,  H05B33/0842 ,  H05B33/0845 ,  H05B33/0857 ,  H05B37/02 ,  Y02B20/346

Abstract: LED-based light source modules can incorporate color tunability and brightness control, allowing a user to select a desired color temperature and/or brightness and to change either or both dynamically. An emitter can include multiple independently addressable groups of LEDs, each emitting light of a different color. By controlling the relative operating current provided to each group, a desired color temperature can be achieved, and by controlling the absolute operating currents, the brightness of the output light can be controlled. Pulse width modulation (PWM) can be used to control the relative and absolute operating currents. Smooth, gradual transitions between brightness and/or color temperature settings in response to changes can be provided.

Abstract translation: 基于LED的光源模块可以包含颜色可调性和亮度控制，允许用户选择所需的色温和/或亮度，并且动态地改变其中一种或两种。 发射器可以包括多个可独立寻址的LED组，每组发射不同颜色的光。 通过控制提供给每个组的相对工作电流，可以实现期望的色温，并且通过控制绝对工作电流，可以控制输出光的亮度。 脉冲宽度调制（PWM）可用于控制相对和绝对工作电流。 可以提供响应于变化的亮度和/或色温设置之间的平滑，逐渐的过渡。