CN104219827A - Active self-adjusting circuit - Google Patents
Active self-adjusting circuit Download PDFInfo
- Publication number
- CN104219827A CN104219827A CN201310507480.6A CN201310507480A CN104219827A CN 104219827 A CN104219827 A CN 104219827A CN 201310507480 A CN201310507480 A CN 201310507480A CN 104219827 A CN104219827 A CN 104219827A
- Authority
- CN
- China
- Prior art keywords
- resistance
- current
- triode
- emitting diode
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000001105 regulatory effect Effects 0.000 claims abstract description 11
- 230000000087 stabilizing effect Effects 0.000 claims description 21
- 230000002457 bidirectional effect Effects 0.000 abstract description 19
- 230000008033 biological extinction Effects 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B31/00—Electric arc lamps
- H05B31/48—Electric arc lamps having more than two electrodes
- H05B31/50—Electric arc lamps having more than two electrodes specially adapted for ac
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/357—Driver circuits specially adapted for retrofit LED light sources
- H05B45/3574—Emulating the electrical or functional characteristics of incandescent lamps
- H05B45/3575—Emulating the electrical or functional characteristics of incandescent lamps by means of dummy loads or bleeder circuits, e.g. for dimmers
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/395—Linear regulators
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Abstract
The present invention relates to a light modulation circuit, and more particularly, to an active self-tuning circuit. The active self-regulation circuit comprises an alternating current power supply (1), a bridge rectifier (2), a light-emitting diode driving unit, a light-emitting diode (3) and an active leakage current regulation circuit; the alternating current power supply (1) is connected with the light emitting diode driving unit through the bridge rectifier (2), two ends of the light emitting diode driving unit are connected with the light emitting diodes (3) in parallel, and the bridge rectifier (2) and the light emitting diode driving unit are connected with the active leakage current regulating circuit in series. The active self-regulating circuit regulates the kinetic energy regulator and the switch conducting time according to the maintaining current of the alternating-current three-terminal bidirectional alternating-current switch (TRIAC) and the total system current, and increases the conducting time of the driving signal when the total system current is less than the minimum maintaining current so that the current flowing through the three-terminal bidirectional alternating-current switch circuit is raised back to the level of the maintaining current to maintain the normal conduction of the three-terminal bidirectional alternating-current switch.
Description
Technical field
The present invention relates to a kind of light adjusting circuit, particularly the active self-control circuit of one.
Background technology
Current interchange three terminal bidirectional alternating-current switch (TRIAC, three terminal bidirectional alternating-current switch is in fact bidirectional thyristor, it grows up on the basis of triode thyristor, it can not only replace the thyristor of two reversed polarity parallel connections, and only use circuits for triggering) dimmer applications is in conventional lamp or LED(light-emitting diode) on light fixture, three terminal bidirectional alternating-current switch dimmer needs a minimum maintenance electric current, to maintain the work of three terminal bidirectional alternating-current switch energy normally, in order to produce this minimum maintenance electric current, too low and the minimum angle of flow of luminaire efficiency can be caused to maintain electric current cannot continuously and maintenance undercurrent, light fixture is caused to glimmer, affect the useful life of light fixture.Current industry uses RC(phase-shift circuit) characteristic of discharge and recharge produces and maintains electric current, therefore in AC(AC power) the a-c cycle whole work period all can produce maintenance electric current, cause the low and minimum angle of flow of three terminal bidirectional alternating-current switch of LED drive efficiency, input voltage is too low causes maintenance undercurrent.
Summary of the invention
The object of the present invention is to provide a kind of active self-control circuit, to promote the efficiency of light-emitting diode adjusting driver, increase the matching of three terminal bidirectional alternating-current switch dimmer.
For achieving the above object, the invention provides following technical scheme:
Active self-control circuit, comprises AC power 1, bridge rectifier 2, light-emitting diode driver element and light-emitting diode 3, wherein:
Described AC power 1 through bridge rectifier 2 connecting luminous diode driver element, the two ends of this light-emitting diode driver element multiple light-emitting diode 3 in parallel, series connection initiatively earial drainage regulating circuit between this bridge rectifier 2 and light-emitting diode driver element.
Described active earial drainage regulating circuit comprises diode 4, first resistance 5, second resistance 6, the 3rd resistance 7, the 4th resistance 12, first voltage stabilizing didoe 8, second voltage stabilizing didoe 9, first triode 10 and the second triode 11; Wherein, the control end of this first triode 10 connects the output of this second triode 11, and described first triode 10, second triode 11 is connected in parallel in the outlet line of bridge rectifier 2; Second resistance 6 and the first voltage stabilizing didoe 8 in parallel on first resistance 5 in parallel and the second voltage stabilizing didoe 9, second triode 11 on this first triode 10.
Described first resistance 7 and diode 4 are connected on the output of bridge rectifier 2.
The 4th resistance 12 is provided with between described second voltage stabilizing didoe 9 and light-emitting diode driver element.
The two ends shunt capacitance 13 of described 3rd resistance 7.
Described first resistance 5, second resistance 6, the 3rd resistance 7 and the 4th resistance 12 are adjustable resistors.
Compared with prior art, beneficial effect of the present invention is: active self-control circuit, comprise earial drainage regulating circuit, electric current and system total current is maintained according to interchange three terminal bidirectional alternating-current switch (TRIAC), regulate kinetic energy adjuster, switch conduction times, when being less than extinction current when system total current, increase drive singal ON time, the electric current flowing through three terminal bidirectional alternating-current switch circuit is made to go back up to the level maintaining electric current, to maintain the normally of three terminal bidirectional alternating-current switch, promote the efficiency of light-emitting diode adjusting driver, increase the matching of three terminal bidirectional alternating-current switch dimmer.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing regulating circuit;
Fig. 2 is the structural representation of active self-control circuit of the present invention;
Fig. 3 is system block diagrams of the present invention;
Fig. 4 is system architecture diagram of the present invention;
Fig. 5 is system power oscillogram of the present invention;
Fig. 6 is AC power AC oscillogram of the present invention.
[primary clustering symbol description]
1 AC power
2 bridge rectifiers
3 light-emitting diodes
4 diodes
5 first resistance
6 second resistance
7 the 3rd resistance
8 first voltage stabilizing didoes
9 second voltage stabilizing didoes
10 first triodes
11 second triodes
12 the 4th resistance
13 electric capacity
Embodiment
Structure of the present invention, feature and embodiment is further illustrated below according to Figure of description.The present invention is not limited to following examples.
Please refer to Fig. 1 and Fig. 2.Wherein, Fig. 1 is the structural representation of existing regulating circuit, and Fig. 2 is the structural representation of active self-control circuit of the present invention.Wherein, active self-control circuit of the present invention comprises AC power 1, bridge rectifier 2, light-emitting diode (LED) driver element, light-emitting diode 3 and active earial drainage regulating circuit.
As shown in Figure 2, wherein AC power 1 connects LED drive unit through bridge rectifier 2, two ends multiple light-emitting diode 3 in parallel of this LED drive unit, series connection initiatively earial drainage regulating circuit between this bridge rectifier 2 and LED drive unit.
Wherein this active earial drainage regulating circuit comprises diode 4, first resistance 5, second resistance 6, the 3rd resistance 7, the 4th resistance 12, first voltage stabilizing didoe 8, second voltage stabilizing didoe 9, first triode 10 and the second triode 11.
Wherein, the control end of this first triode 10 connects the output of this second triode 11, and described first triode 10, second triode 11 is connected in parallel in the outlet line of bridge rectifier.Second resistance 6 and the first voltage stabilizing didoe 8 in parallel on first resistance 5 in parallel and the second voltage stabilizing didoe 9, second triode 11 on this first triode 10.The first resistance 7 wherein and diode 4 are connected on the output of bridge rectifier.The 4th resistance 12 is provided with between the second voltage stabilizing didoe 9 wherein and light-emitting diode driver element.The two ends shunt capacitance 13 of the 3rd resistance 7 wherein.The first resistance 5, second resistance 6 wherein, the 3rd resistance 7, the 4th resistance 12 are adjustable resistor.
In one embodiment of the invention, the first triode 10 is PNP type triode, and the second triode 11 is NPN type triode.Wherein, the connection of described AC power 1 and bridge rectifier 2.The base stage (B level, i.e. aforementioned control terminal) of the first triode 10 and the collector electrode (C pole, i.e. aforementioned output) of the second triode 11 connect; Collector electrode (C pole) and the emitter (E level) of the first triode 10 are connected with the output port of bridge rectifier 2 respectively; Emitter (E level) and the base stage (B level) of the second triode 11 are connected with the output port of bridge rectifier 2 respectively.Second resistance 6 and the first voltage stabilizing didoe 8 in parallel on first resistance 5 in parallel and the second voltage stabilizing didoe 9, second triode 11 on this first triode 10.The first resistance 7 wherein and diode 4 are connected on the output of bridge rectifier.The 4th resistance 12 is provided with between the second voltage stabilizing didoe 9 wherein and light-emitting diode driver element.The two ends shunt capacitance 13 of the 3rd resistance 7 wherein.The first resistance 5, second resistance 6 wherein, the 3rd resistance 7, the 4th resistance 12 are adjustable resistor.
As shown in Figure 3, be system block diagrams of the present invention.Active self-control circuit of the present invention, when system power diminishes, the electric current flowing through the 3rd resistance 7 diminishes, when the 3rd resistance 7 pressure drop is less than the VBE of the second triode 11, the first triode 10 conducting, now AC power 1 flows through the second resistance 6 through the first triode 10, like this, add the electric current of AC power 1, be greater than the extinction current of three terminal bidirectional alternating-current switch (TRIAC), light fixture normally can be worked and do not glimmer; When system power becomes large, the ER effect flowing through the 3rd resistance 7 is large, and when the 3rd resistance 7 pressure drop is greater than the VBE of the second triode 11, the first triode 10 ends.
When LED drive unit forms open circuit, output is caused to present Light Condition, now voltage V1 is through the first resistance 5 and the 4th resistance 12 dividing potential drop, when dividing potential drop is greater than the breakdown voltage of the second voltage stabilizing didoe 9, the second triode 11 conducting can be triggered, first triode 10 ends, and reduces initiatively earial drainage and regulates electric current, reduce no-load loss.
As shown in Figure 4, be system architecture diagram of the present invention.Wherein, no matter use which kind of LED driver, only when consumed power, AC power just can flow through three terminal bidirectional alternating-current switch dimmer by generation current, so when system power diminishes, AC electric current will be less than three terminal bidirectional alternating-current switch dimmer extinction current, extinction current is less than when system total current detects system power, now initiatively earial drainage regulates current control unit to start, through triode passage, electric current is extracted to AC power, increase extinction current, three terminal bidirectional alternating-current switch dimmer is normally worked, when LED carries end formation Light Condition, the unloaded detecting unit of LED can order about initiatively earial drainage and regulate current control unit to turn off triode, reduce the no-load loss of whole light-emitting diode, reach energy-conservation object.
As shown in Figure 5 and Figure 6, be system power oscillogram of the present invention and AC power AC oscillogram respectively.
As foregoing circuit operation principles, active self-control circuit of the present invention, when system power diminishes, the electric current flowing through the 3rd resistance 7 diminishes, when the 3rd resistance 7 pressure drop is less than the VBE of the second triode 11, first triode 10 conducting, now AC power 1 flows through the second resistance 6 through the first triode 10, add initiatively earial drainage and regulate electric current, therefore add the alternating current of AC power 1, make this alternating current be greater than the extinction current of three terminal bidirectional alternating-current switch (TRIAC), and light fixture can normally be worked do not glimmer.
When system power becomes large, the ER effect flowing through the 3rd resistance 7 is large, and when the 3rd resistance 7 pressure drop is greater than the VBE of the second triode 11, the first triode 10 ends, and now, the alternating current of this AC power 1 only comprises this system power.
As described above; be only a better feasible embodiment of the present invention; the non-rights protection scope therefore just limiting the present invention, every utilization specification of the present invention and the equivalence change for it of graphic content institute, be all contained within the scope of the rights protection of the present invention.
Claims (6)
1. active self-control circuit, comprises AC power (1), bridge rectifier (2), light-emitting diode driver element and light-emitting diode (3), it is characterized in that:
Described AC power (1) is through bridge rectifier (2) connecting luminous diode driver element, two ends multiple light-emitting diode (3) in parallel of this light-emitting diode driver element, series connection initiatively earial drainage regulating circuit between this bridge rectifier (2) and light-emitting diode driver element.
2. active self-control circuit as claimed in claim 1, is characterized in that: described active earial drainage regulating circuit comprises diode (4), the first resistance (5), the second resistance (6), the 3rd resistance (7), the 4th resistance (12), the first voltage stabilizing didoe (8), the second voltage stabilizing didoe (9), the first triode (10) and the second triode (11); Wherein, the control end of this first triode (10) connects the output of this second triode (11), and described first triode (10), the second triode (11) are connected in parallel in the outlet line of bridge rectifier (2); Upper first resistance (5) in parallel of this first triode (10) and the second voltage stabilizing didoe (9), upper second resistance (6) in parallel of the second triode (11) and the first voltage stabilizing didoe (8).
3. active self-control circuit as claimed in claim 2, is characterized in that: described first resistance (7) and diode (4) are connected on the output of bridge rectifier (2).
4. active self-control circuit as claimed in claim 2, is characterized in that: be provided with the 4th resistance (12) between described second voltage stabilizing didoe (9) and light-emitting diode driver element.
5. active self-control circuit as claimed in claim 2, is characterized in that: the two ends shunt capacitance (13) of described 3rd resistance (7).
6. active self-control circuit as claimed in claim 2, is characterized in that: described first resistance (5), the second resistance (6), the 3rd resistance (7) and the 4th resistance (12) are adjustable resistors.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW102119816A TWI508615B (en) | 2013-06-04 | 2013-06-04 | Active self-regulating circuit |
| TW102119816 | 2013-06-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104219827A true CN104219827A (en) | 2014-12-17 |
Family
ID=51214690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310507480.6A Pending CN104219827A (en) | 2013-06-04 | 2013-10-24 | Active self-adjusting circuit |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN104219827A (en) |
| GB (1) | GB2514929A (en) |
| TW (1) | TWI508615B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108601131A (en) * | 2017-11-27 | 2018-09-28 | 浙江阳光美加照明有限公司 | TRIAC light modulator electric current holding circuits and use its linearity light adjusting driving circuit |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9814105B2 (en) * | 2015-11-12 | 2017-11-07 | Semiconductor Components Industries, Llc | Control circuit for LED and active bleeder thereof |
| CN110300476B (en) | 2018-03-23 | 2022-04-12 | 台达电子工业股份有限公司 | Dimmer control circuit, method and system |
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| CN101998728A (en) * | 2009-08-25 | 2011-03-30 | 联咏科技股份有限公司 | Dimming circuit, isolated voltage generator and dimming method for light emitting diode (LED) |
| CN202135377U (en) * | 2011-07-21 | 2012-02-01 | 北京源点新智科技有限公司 | A control circuit of a drive power supply capable of adjusting an LED light source, and a control module thereof |
| CN202261965U (en) * | 2011-09-21 | 2012-05-30 | 缪仙荣 | Light-emitting diode (LED) dimming circuit applicable to silicon controlled dimmer |
| CN102625514A (en) * | 2011-01-26 | 2012-08-01 | 聚积科技股份有限公司 | Adaptive bleeder circuit |
| CN102695330A (en) * | 2011-03-22 | 2012-09-26 | 立锜科技股份有限公司 | Light emitting device power supply circuit, and light emitting device driver circuit and control method thereof |
| CN202488803U (en) * | 2011-12-15 | 2012-10-10 | 成都芯源系统有限公司 | LED driving device and controller thereof |
| CN102740571A (en) * | 2012-07-18 | 2012-10-17 | 矽力杰半导体技术(杭州)有限公司 | Dimmable LED (Light-Emitting Diode) driving circuit and driving method |
| CN202634815U (en) * | 2012-05-25 | 2012-12-26 | 无锡实益达电子有限公司 | LED (Light Emitting Diode) drive power circuit with flicker-free dimming |
| CN103004290A (en) * | 2010-07-13 | 2013-03-27 | 皇家飞利浦电子股份有限公司 | Bleeding circuit and related method for preventing improper dimmer operation |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9220133B2 (en) * | 2009-11-20 | 2015-12-22 | Lutron Electronics Co., Inc. | Controllable-load circuit for use with a load control device |
| TW201141303A (en) * | 2010-05-07 | 2011-11-16 | Light Engine Ltd | Triac dimmable power supply unit for LED |
| JP2013020931A (en) * | 2011-06-16 | 2013-01-31 | Sanken Electric Co Ltd | Led lighting apparatus |
-
2013
- 2013-06-04 TW TW102119816A patent/TWI508615B/en not_active IP Right Cessation
- 2013-10-24 CN CN201310507480.6A patent/CN104219827A/en active Pending
-
2014
- 2014-06-04 GB GB1409892.5A patent/GB2514929A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101998728A (en) * | 2009-08-25 | 2011-03-30 | 联咏科技股份有限公司 | Dimming circuit, isolated voltage generator and dimming method for light emitting diode (LED) |
| CN103004290A (en) * | 2010-07-13 | 2013-03-27 | 皇家飞利浦电子股份有限公司 | Bleeding circuit and related method for preventing improper dimmer operation |
| CN102625514A (en) * | 2011-01-26 | 2012-08-01 | 聚积科技股份有限公司 | Adaptive bleeder circuit |
| CN102695330A (en) * | 2011-03-22 | 2012-09-26 | 立锜科技股份有限公司 | Light emitting device power supply circuit, and light emitting device driver circuit and control method thereof |
| CN202135377U (en) * | 2011-07-21 | 2012-02-01 | 北京源点新智科技有限公司 | A control circuit of a drive power supply capable of adjusting an LED light source, and a control module thereof |
| CN202261965U (en) * | 2011-09-21 | 2012-05-30 | 缪仙荣 | Light-emitting diode (LED) dimming circuit applicable to silicon controlled dimmer |
| CN202488803U (en) * | 2011-12-15 | 2012-10-10 | 成都芯源系统有限公司 | LED driving device and controller thereof |
| CN202634815U (en) * | 2012-05-25 | 2012-12-26 | 无锡实益达电子有限公司 | LED (Light Emitting Diode) drive power circuit with flicker-free dimming |
| CN102740571A (en) * | 2012-07-18 | 2012-10-17 | 矽力杰半导体技术(杭州)有限公司 | Dimmable LED (Light-Emitting Diode) driving circuit and driving method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108601131A (en) * | 2017-11-27 | 2018-09-28 | 浙江阳光美加照明有限公司 | TRIAC light modulator electric current holding circuits and use its linearity light adjusting driving circuit |
| CN108601131B (en) * | 2017-11-27 | 2023-11-10 | 浙江阳光美加照明有限公司 | TRIAC dimmer current maintaining circuit and linear dimming driving circuit using same |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201409892D0 (en) | 2014-07-16 |
| TWI508615B (en) | 2015-11-11 |
| TW201448659A (en) | 2014-12-16 |
| GB2514929A (en) | 2014-12-10 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20141217 |