U.S. patent application number 15/687436 was filed with the patent office on 2018-11-29 for circuit of dimming and toning based on a driver on board module.
The applicant listed for this patent is SHENZHEN ANGELED CO., LTD. Invention is credited to Binhua Deng, Youqing Liang, Donglei Tian.
Application Number | 20180343721 15/687436 |
Document ID | / |
Family ID | 59327008 |
Filed Date | 2018-11-29 |
United States Patent
Application |
20180343721 |
Kind Code |
A1 |
Liang; Youqing ; et
al. |
November 29, 2018 |
CIRCUIT OF DIMMING AND TONING BASED ON A DRIVER ON BOARD MODULE
Abstract
The invention discloses a circuit of dimming and toning based on
a driver on board module, relates to LED driving circuit technology
field, which includes a silicon controlled dimming circuit module,
a rectifier module, an AC constant current power supply module, a
plurality of balanced architecture LED modules, and a color
feedback comparison module. The AC constant current power supply
module includes a plurality of AC constant current power supply sub
units supplying power for the balanced architecture LED modules
correspondingly. The color feedback comparison module is located
between two balanced architecture LED modules to compare voltages
generated thereby and no power contrast feedback between two
balanced architecture LED modules is generated when the silicon
controlled dimming circuit module adjusts current, so that the
color feedback comparison module makes an LED bead thereof to
choose road between the balanced architecture LED modules to
realize colour temperature adjusting.
Inventors: |
Liang; Youqing; (Shenzhen,
CN) ; Tian; Donglei; (Shenzhen, CN) ; Deng;
Binhua; (Shenzhen, CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
SHENZHEN ANGELED CO., LTD |
Shenzhen |
|
CN |
|
|
Family ID: |
59327008 |
Appl. No.: |
15/687436 |
Filed: |
August 25, 2017 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
H05B 45/10 20200101;
H05B 45/37 20200101; Y02B 20/342 20130101; Y02B 20/30 20130101;
Y02B 20/345 20130101; H05B 45/35 20200101; H05B 45/24 20200101 |
International
Class: |
H05B 33/08 20060101
H05B033/08 |
Foreign Application Data
Date |
Code |
Application Number |
May 26, 2017 |
CN |
201710382435.0 |
Claims
1. A circuit of dimming and toning based on a driver on board
module, comprising: a silicon controlled dimming circuit module; a
rectifier module; a plurality of balanced architecture LED modules;
an AC constant current power supply module comprising a plurality
of AC constant current power supply sub units supplying power for
the plurality of balanced architecture LED modules respectively;
and a color feedback comparison module; wherein the silicon
controlled dimming circuit module, the rectifier module, and the AC
constant current power supply module are electrically connected to
each other; wherein the color feedback comparison module is located
between every two balanced architecture LED modules to compare
voltages generated thereby and no power contrast feedback between
two balanced architecture LED modules is generated when the silicon
controlled dimming circuit module adjusts current, so that the
color feedback comparison module makes an LED bead thereof to
choose road between the balanced architecture LED modules to
realize colour temperature adjusting.
2. The circuit of claim 1, wherein the AC constant current power
supply module further comprises an AC constant current power supply
main unit electrically connected between the rectifier module and
the AC constant current power supply sub units to assign a current
outputted by the rectifier module to the AC constant current power
supply sub units.
3. (canceled)
4. The circuit of claim 1, wherein each of the balanced
architecture LED modules comprises a first balanced architecture
LED unit, a second balanced architecture LED unit including a
second switch MOS tube, and an LED adjusting pressure differential
resistance unit electrically connected to the first balanced
architecture LED unit and the second balanced architecture LED
unit, and the first balanced architecture LED unit and the second
balanced architecture LED unit respectively comprises a plurality
of matrix LED beads.
5. The circuit of claim 2, wherein each of the balanced
architecture LED modules comprises a first balanced architecture
LED unit, a second balanced architecture LED unit including a
second switch MOS tube, and an LED adjusting pressure differential
resistance unit electrically connected to the first balanced
architecture LED unit and the second balanced architecture LED
unit, and the first balanced architecture LED unit and the second
balanced architecture LED unit respectively comprises a plurality
of matrix LED beads.
6. (canceled)
7. The circuit of claim 4, wherein the color feedback comparison
module is a passive contrast feedback circuit composed by a triode
and a photoelectric coupler, when the silicon controlled dimming
circuit module is adjusted, the color feedback comparison module
compares voltages between two balanced architecture LED modules so
that a switchable pressure differential is generated between an
emitting electrode and a base electrode of the triode, the
switchable pressure differential is fed back to each second switch
MOS tube by the photoelectric coupler, which makes each second
switch MOS tube form a conducting or semi conducting or closed
state respectively, and the passive contrast feedback circuit makes
the plurality of matrix LED beads to choose road to realize colour
temperature adjusting between the plurality of balanced
architecture LED modules.
8. The circuit of claim 5, wherein the color feedback comparison
module is a passive contrast feedback circuit composed by a triode
and a photoelectric coupler, when the silicon controlled dimming
circuit module is adjusted, the color feedback comparison module
compares voltages between two balanced architecture LED modules so
that a switchable pressure differential is generated between an
emitting electrode and a base electrode of the triode, the
switchable pressure differential is fed back to each second switch
MOS tube by the photoelectric coupler, which makes each second
switch MOS tube form a conducting or semi conducting or closed
state respectively, and the passive contrast feedback circuit makes
the plurality of matrix LED beads to choose road to realize colour
temperature adjusting between the plurality of balanced
architecture LED modules.
9. (canceled)
Description
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] The present application claims the benefit of Chinese Patent
Application No. 201710382435.0 filed on May 26, 2017. All the above
are hereby incorporated by reference.
FIELD
[0002] The present disclosure generally relates to LED driving
circuit technology field, and more particularly to led dimmer color
temperature adjustment programs on DOB design, namely a circuit of
dim to warm on DOB design.
BACKGROUND
[0003] In recent years, the LED lamp instead of the traditional
incandescent lamp has been widely used as lighting source. With the
increasing requirement of LED lighting source and the development
of LED technology, the dimming LED lighting source is came into
being.
[0004] However, linear constant current drive silicon controlled
dimming circuit of existing LED lighting source can achieve
monochrome brightness adjustment only, but cannot adjust color
application, namely the LED lamp cannot provide the effect of
linear color temperature adjustment. Although some LED lamps can
adjust color temperature, the effect of color temperature is
achieved by using expensive microcontroller technology.
BRIEF DESCRIPTION OF THE DRAWINGS
[0005] Many aspects of the present embodiments can be better
understood with reference to the following drawings. The components
in the drawings are not necessarily drawn to scale, the emphasis
instead being placed upon clearly illustrating the circuits of the
present embodiments. Moreover, in the drawings, all the views are
schematic, and like reference numerals designate corresponding
parts throughout the several views.
[0006] FIG. 1 is a functional block diagram of a circuit of dim to
warm on DOB design.
[0007] FIG. 2 is a first part of the functional block diagram of
FIG. 1.
[0008] FIG. 3 is a second part of the functional block diagram of
FIG. 1.
DETAILED DESCRIPTION
[0009] The disclosure is illustrated by way of example and not by
way of limitation in the figures of the accompanying drawings in
that like reference numerals indicate similar elements. It should
be noted that references to "an" or "one" embodiment in this
disclosure are not necessarily to the same embodiment, and such
references can mean "at least one."
[0010] FIGS. 1-3 illustrate a first embodiment of a circuit of dim
to warm on DOB design 100. The circuit of dim to warm on DOB design
100 includes a silicon controlled dimming circuit module 110, a
rectifier module 120, an AC constant current power supply module
130, a plurality of balanced architecture LED modules 140, and a
plurality of color feedback comparison modules 150. The silicon
controlled dimming circuit module 110, the rectifier module 120,
and the AC constant current power supply module 130 are
electronically connected respectively. The AC constant current
power supply module 130 includes a plurality of AC constant current
power supply sub units 131 supplying power for the balanced
architecture LED modules 140 correspondingly. Each color feedback
comparison module 150 is located between two balanced architecture
LED modules 140 to voltage compare and no power contrast feedback
between two balanced architecture LED modules 140 when the silicon
controlled dimming circuit module 110 adjusts current, and the
balanced architecture LED modules 140 make LED choose road to
realize colour temperature adjusting.
[0011] In one embodiment, FIGS. 1-2 illustrate that the AC constant
current power supply module 130 further includes an AC constant
current power supply main unit 132. The AC constant current power
supply main unit 132 is electrically connected between the
rectifier module 120 and the AC constant current power supply sub
units 131, which can appropriately assign the current outputted by
the rectifier module 120 to the AC constant current power supply
sub units 131. In detail, the AC constant current power supply main
unit 132 is a linear constant current switching circuit composed by
a chip XR 46110, a chip 46010, and a first switch MOS tube. The AC
constant current power supply sub units 131 is a linear constant
current power supply circuit based on a chip XR46014.
[0012] FIG. 1 and FIG. 3 illustrate that the balanced architecture
LED module 140 includes a first balanced architecture LED unit 141,
a second balanced architecture LED unit 142 with a second switch
MOS tube, and a LED adjusting pressure differential resistance unit
143. The LED adjusting pressure differential resistance unit 143 is
electrically connected between the first balanced architecture LED
unit 141 and the second balanced architecture LED unit 142. The
first balanced architecture LED unit 141 and the second balanced
architecture LED unit 142 include a plurality of matrix LED beads
respectively. The LED adjusting pressure differential resistance
unit 143 make the first balanced architecture LED unit 141 and the
second balanced architecture LED unit 142 of the balanced
architecture LED module 140 change differential pressure.
[0013] FIG. 3 illustrates that the color feedback comparison module
150 is a passive contrast feedback circuit composed by a triode and
a photoelectric coupler. When the silicon controlled dimming
circuit module 110 is adjusted the current, the color feedback
comparison module 150 compare voltage between two balanced
architecture LED module 140, so that a switchable pressure
differential is generated between a emitting electrode and a base
electrode of the triode. The switchable pressure differential is
fed back to each second switch MOS tube by the photoelectric
coupler, which makes each second switch MOS tube form a conducting
or semi conducting or closed state respectively. The passive
contrast feedback make LED choose road to realize colour
temperature adjusting between the plurality of balanced
architecture LED modules 140.
[0014] In detail, FIGS. 1-3 illustrate that the LED dimming and
coloring circuit 100 includes two balanced architecture LED modules
140, and a color feedback comparison module 150 according to actual
need, in the illustrated embodiment, the color feedback comparison
module 150 is located between two balanced architecture LED modules
140. In this way, as illustrated in FIG. 1, the AC constant current
power supply module 130 includes two AC constant current power
supply sub units 131 supplying power for the balanced architecture
LED modules 140 correspondingly. When the silicon controlled
dimming circuit module 110 adjusts current, the first balanced
architecture LED unit 141 and the second balanced architecture LED
unit 142 of a first balanced architecture LED module 140 change
differential pressure with the first balanced architecture LED unit
141 and the second balanced architecture LED unit 142 of a second
balanced architecture LED module 140. The triode compares with the
current flowed through R14 and R15 to make sample comparison, so
that a switchable pressure differential is generated between an
emitting electrode and a base electrode of the triode. The
switchable pressure differential is fed back to the second switch
MOS tube Q3 of the second balanced architecture LED unit 142 of the
second balanced architecture LED module 140, and the second switch
MOS tube Q4 of the second balanced architecture LED unit 142 of the
second balanced architecture LED module 140 by the photoelectric
coupler U4, which makes the second switch MOS tube Q3 and Q4 form a
conducting or semi conducting or closed state respectively. The
passive contrast feedback make LED choose road to realize colour
temperature adjusting between the plurality of balanced
architecture LED modules 140.
[0015] The circuit of dim to warm on DOB design provided in the
present invention configures the plurality of balanced architecture
LED modules and color feedback comparison modules. The color
feedback comparison module is located between two balanced
architecture LED modules to voltage compare and no power contrast
feedback between two balanced architecture LED modules when the
silicon controlled dimming circuit adjusts current, and the
balanced architecture LED modules make LED choose road to realize
colour temperature adjusting. The LED dimming and coloring circuit
of this invention uses simple balanced architecture LED module and
color feedback comparison module to make the LED lamps can adjust
color temperature, rather than using expensive microcontroller
technology.
[0016] Although various features and elements are described as
embodiments in particular combinations, each feature or element can
be used alone or in other various combinations within the circuit
of the present disclosure to the full extent indicated by the broad
general meaning of the terms in which the appended claims are
expressed.
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