LIGHT-EMITTING DIODE MODULE LAMP WITH ADJUSTABLE CHROMATICITY

• US 20140268734A1
• Filed: 09/17/2013
• Published: 09/18/2014
• Est. Priority Date: 03/12/2013
• Status: Abandoned Application

• Current Assignee: Chen-Hao Chang, Chih-Ju Hung
• Original Assignee: Chen-Hao Chang, Chih-Ju Hung
• Inventors: CHANG, CHEN-HAO, HUNG, CHIH-JU
• Application Number:
  US14/028,636
• Publication Number:
  US 20140268734A1
• Time in Patent Office: Days
• US Class Current: 362/231
• CPC Class Codes: H05B 45/20 Controlling the colour of the light
• CPC Class Codes: H05B 45/40 Details of LED load circuits

Abstract

A light-emitting diode (LED) module lamp with adjustable chromaticity is provided. The LED module lamp is formed by at least one set of second module including a plurality of LED modules, namely a first LED module to an n^th LED module. Each of the LED modules includes a plurality of LEDs having visible spectrum chromaticities. That is, a first chromaticity LED C₁ to an n^th chromaticity LED C_n form a structure in a cyclic arrangement. The second module array is:

$\hspace{1em}\left[\begin{array}{ccccccc}{C}_1& C_2& C_3& & \dots & C_{n-1}& C_n\\ C_2& C_3& C_4& \dots & \dots & C_n& C_1\\ C_3& C_4& \dots & \dots & C_n& C_1& C_2\\ \dots & \dots & \dots & \dots & \dots & \dots & \dots \\ C_n& C_1& \dots & \dots & \dots & C_{n-2}& C_{n-1}\end{array}\right],$

where the first to n^th columns are independently connected in series.

Claims

1. A light-emitting diode (LED) module lamp with adjustable chromaticity, formed by at least one set of second module repeatedly connected in series;

wherein;

the second module comprises a plurality of LED modules from a first LED module to an n^th LED module, each of the LED modules comprises a plurality of LEDs having visible spectrum chromaticities, and is formed by a structure in a cyclic arrangement of a first chromaticity LED C₁ to an nth chromaticity LED C_n;

a chromaticity sequence of the LEDs of the first LED module is the first chromaticity LED C₁, a second LED chromaticity LED C₂, . . . , an (n−

1)^th chromaticity LED C_n-1, and the nth chromaticity LED C_n;

the chromaticity sequence of the first LED module is a first column;

└

C₁, C₂, C₃, C₄, . . . , C_n-1, C_n┘

;

a chromaticity sequence of the LEDs of the second LED module is the second chromaticity LED C₂, the third LED chromaticity LED C₃, . . . , the (n−

1)^th chromaticity LED C_n-1, the nth chromaticity LED C_n, and the first chromaticity LED C₁;

the chromaticity sequence of the second LED module is a second column;

└

C₂, C₃, C₄, . . . , C_n-1, C_n, C₁┘

;

a chromaticity sequence of the LEDs of the n^th LED module is the nth chromaticity LED C_n, the first chromaticity LED C₁, the second LED chromaticity LED C₂, the third LED chromaticity LED C₃, . . . , and the (n−

1)^th chromaticity LED C_n-1;

the chromaticity sequence of the n^th LED module is an n^th column;

└

C_n, C₁, C₂, C₃, C₄, . . . C_n-2, C_n-1┘

;

a combination array (n×

n) of the first LED module, the second LED module, the third LED module, to the n^th LED module of the second module is;

2. The LED module lamp with adjustable chromaticity according to claim 1, wherein the at least one set of second module has an input end serving as a starting terminal connected to a first voltage, and an output end serving as an ending terminal connected to a ground potential.

3. The LED module lamp with adjustable chromaticity according to claim 2, a total power supply potential is equal when the first LED module is connected in series with the first LED module and then sequentially connected with the third LED module in series;

the total rated operating voltages of the first to the n^th columns connected in series are equal to sums of the operating voltages of the chromaticity LEDs C₁ to C_n, respectively.

4. The LED module lamp with adjustable chromaticity according to claim 3, further comprising:

an n number of pulse-width modulators (PWMs), each having a second end connected to a ground potential, and a first end connected to the output end of the second module serving as the ending terminal;

wherein, the output end of the second module serving as the ending terminal is an output end of an n sets of independent serial connections.

5. The LED module lamp with adjustable chromaticity according to claim 4, wherein periods of the n number of PWMs are independent, and are an adjustable range of 0% to 100%.

6. The LED module lamp with adjustable chromaticity according to claim 5, further comprising:

an n number of controllers, each having one end connected to a ground potential and one other end connected to the second end of the corresponding PWM;

wherein, the controllers are constant voltage controllers, constant current controllers, or constant voltage and constant current controllers.

7. The LED module lamp with adjustable chromaticity according to claim 6, wherein control currents of the n number of controllers are independently adjustable.

8. The LED module lamp with adjustable chromaticity according to claim 6, wherein:

the first LED C₁ to the n^th LED C_n, └

C₁, C₂, C₃, C₄, . . . , C_n-1, C_n┘

, through different work period combinations of the n number of PWMs, generate a first luminance chromaticity in a first period T1;

the second LED C₂ to the first LED C₁, └

C₂, C₃, C₄, . . . , C_n-1, C_n, C₁┘

, through different work period combinations of the n number of PWMs, generate a second luminance chromaticity in the first period T1; and

the n^th LED C_n to the first LED C_n-1, ℑ

C_n, C₁, C₂, C₃, C₄, . . . C_n-2, C_n-1┘

, through different work period combinations of the n number of PWMs, generate an nth luminance chromaticity in the first period T1.

9. The LED module lamp with adjustable chromaticity according to claim 8, wherein:

the first LED C₁ to the nth LED C_n of the first LED module, └

C₁, C₂, C₃, C₄, . . . , C_n-1, C_n┘

, through different operating current combinations of the n number of controllers, generate a first luminance intensity in the first period T1;

the second LED C₂ to the first LED C₁ of the second LED module, └

C₂, C₃, C₄, . . . , C_n-1, C_n, C₁┘

, through different operating current combinations of the n number of controllers, generate a second luminance intensity in the first period T1; and

the n^th LED C_n to the (n−

1)^th LED C_n-1 of the n^th LED module, └

C_n, C₁, C₂, C₃, C₄, . . . C_n-2, C_n-1┘

, through different operating current combinations of the n number of controllers, generate an n^th luminance intensity in the first period T1.