CN106413204B - A kind of ripple absorbing circuit - Google Patents
A kind of ripple absorbing circuit Download PDFInfo
- Publication number
- CN106413204B CN106413204B CN201611072407.0A CN201611072407A CN106413204B CN 106413204 B CN106413204 B CN 106413204B CN 201611072407 A CN201611072407 A CN 201611072407A CN 106413204 B CN106413204 B CN 106413204B
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- triode
- circuit
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- short
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Classifications
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- 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]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
-
- 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 discloses a kind of ripple absorbing circuit, a kind of ripple absorbing circuit, including following circuit and short-circuit protection circuit with automatic regulation function, circuit is followed to automatically adjust triode Q3, short-circuit protection circuit includes resistance R1, resistance R4, zener diode Z1, triode Q2 and triode Q1, the base stage of a terminals connecting triode Q1 of resistance R1, the base stage of a terminals connecting triode Q2 of resistance R1, the collector of the emitter connecting triode Q1 of triode Q2, the emitter of triode Q1 connects zener diode Z1, the collector of resistance R4 and triode Q2, another terminals of zener diode Z1 connect power cathode, another terminals of resistance R4 connect positive pole.Circuit light modulation property synchronous with three terminal bidirectional alternating-current switch single-stage solution is good, and output short-circuit does not burn metal-oxide semiconductor (MOS), furthermore the single-level power factor correction not dimmed, LED driving can input this mould it is fast after reach no stroboscopic.
Description
Technical field
The present invention relates to a kind of ripple absorbing circuits.
Background technique
Existing ripple absorbing circuit cannot be compatible with three terminal bidirectional alternating-current switch single- stage PFC and reach no stroboscopic, not in light modulation
It works, and there is no short-circuit protection function.
Summary of the invention
The purpose of the present invention is in view of the above drawbacks of the prior art, provide a kind of ripple absorbing circuit.The circuit and three
Hold the synchronous light modulation property of two-way exchange switch single-stage scheme good, output short-circuit does not burn metal-oxide semiconductor (MOS), furthermore do not dim
Single-level power factor correction, LED driving can input this mould it is fast after reach no stroboscopic.
For the drawbacks described above for solving the prior art, present invention provide the technical scheme that a kind of ripple absorbing circuit, including
Circuit and short-circuit protection circuit are followed with automatic regulation function, described that circuit is followed to automatically adjust triode Q3, short circuit is protected
Protection circuit includes resistance R1, resistance R4, zener diode Z1, triode Q2 and triode Q1, the terminals connection of resistance R1
The base stage of triode Q1, the base stage of a terminals connecting triode Q2 of resistance R1, the emitter connecting triode of triode Q2
The collector of Q1, the emitter of triode Q1 connect the collector of zener diode Z1, resistance R4 and triode Q2, two pole of pressure stabilizing
Another terminals of pipe Z1 connect power cathode, and another terminals of resistance R4 connect positive pole.
As a kind of improvement of ripple absorbing circuit of the present invention, in power supply output short-circuit, triode Q2 starting shutdown three
The output of pole pipe Q1, reaches defencive function, and when exporting not short-circuit, after capacitor C1 electricity discharges, triode Q1 is again started up normally
Work.
As a kind of improvement of ripple absorbing circuit of the present invention, it is described follow circuit include capacitor C1, zener diode Z2,
A terminals of diode D1 and resistance R3, capacitor C1 connect power cathode, and another terminals of capacitor C1 connect resistance
Another terminals of the base stage of R3, zener diode Z2 and triode Q3, zener diode Z2 connect diode D1, diode D1
Another terminals connect positive pole.
As a kind of improvement of ripple absorbing circuit of the present invention, the line of the route of the positive pole and the power cathode
Two branch lines are connected between road, one end of two branch lines connects positive pole, and the other end of two branch lines connects electricity
Source cathode, wherein a branch line is equipped with resistance R2, another branch line is equipped with capacitor C2.
Compared with prior art, the invention has the advantages that the present invention utilizes capacitor C1 and zener diode Z2, diode
The circuit that follows of D1, resistance R3 composition automatically adjusts triode Q3, and the angle of flow of metal-oxide semiconductor (MOS) is realized and TRIAC
The net synchronization capability of single-stage solution inhibits output ripple, resistance R1, resistance R4, zener diode Z1, triode Q2 and triode Q1
Output short circuit protection function is formed, in output short-circuit, the output of triode Q2 starting shutdown triode Q1 reaches protection, only
Normal work is again started up after short circuit capacitance C1 electricity does not discharge in output.
Detailed description of the invention
Just the present invention and its beneficial technical effect are further described with specific embodiment with reference to the accompanying drawings below,
In:
Fig. 1 is electrical block diagram of the present invention.
Specific embodiment
Below just with reference to the accompanying drawings and specific embodiment the invention will be further described.
As shown in Figure 1, a kind of ripple absorbing circuit, including following circuit and short-circuit protection electricity with automatic regulation function
Road, described that circuit is followed to automatically adjust triode Q3, short-circuit protection circuit includes resistance R1, resistance R4, zener diode Z1, three
One terminals of the base stage of a terminals connecting triode Q1 of pole pipe Q2 and triode Q1, resistance R1, resistance R1 connect three poles
The emitter of the base stage of pipe Q2, the collector of the emitter connecting triode Q1 of triode Q2, triode Q1 connects two pole of pressure stabilizing
Another terminals of the collector of pipe Z1, resistance R4 and triode Q2, zener diode Z1 connect power cathode, and resistance R4's is another
One terminals connect positive pole.
Preferably, in power supply output short-circuit, the output of triode Q2 starting shutdown triode Q1 reaches defencive function,
When exporting not short-circuit, after capacitor C1 electricity discharges, triode Q1 is again started up normal work.
Preferably, following circuit includes capacitor C1, zener diode Z2, diode D1 and resistance R3, and one of capacitor C1
Terminals connect power cathode, and another terminals of capacitor C1 connect the base of resistance R3, zener diode Z2 and triode Q3
Pole, another terminals of zener diode Z2 connect diode D1, and another terminals of diode D1 connect positive pole.
Preferably, two branch lines, two branch are connected between the route of positive pole and the route of the power cathode
One end of route connects positive pole, and the other end of two branch lines connects power cathode, wherein a branch line is equipped with electricity
R2 is hindered, another branch line is equipped with capacitor C2.
The invention has the advantages that the present invention using capacitor C1 and zener diode Z2, diode D1, resistance R3 composition with
With circuit automatically adjust triode Q3, the angle of flow of metal-oxide semiconductor (MOS) realizes the synchronism with TRIAC single-stage solution
Can, inhibit output ripple, resistance R1, resistance R4, zener diode Z1, triode Q2 and triode Q1 form output short circuit protection
Function, in output short-circuit, the output of triode Q2 starting shutdown triode Q1 reaches protection, is only exporting not short circuit capacitance
C1 electricity is again started up normal work after discharging.Circuit light modulation property synchronous with three terminal bidirectional alternating-current switch single-stage solution is good, output
The single-level power factor correction that short circuit is not burnt metal-oxide semiconductor (MOS), furthermore do not dimmed, it is fast that LED driving can input this mould
After reach no stroboscopic.
According to the disclosure and teachings of the above specification, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula carries out change and modification appropriate.Therefore, the invention is not limited to the specific embodiments disclosed and described above, to this
Some modifications and changes of invention should also be as falling into the scope of the claims of the present invention.In addition, although this specification
In use some specific terms, these terms are merely for convenience of description, does not limit the present invention in any way.
Claims (4)
1. a kind of ripple absorbing circuit, it is characterised in that: including following circuit and short-circuit protection electricity with automatic regulation function
Road, described that circuit is followed to automatically adjust triode Q3, short-circuit protection circuit includes resistance R1, resistance R4, zener diode Z1, three
One terminals of the base stage of a terminals connecting triode Q1 of pole pipe Q2 and triode Q1, resistance R1, resistance R1 connect three poles
The emitter of the base stage of pipe Q2, the collector of the emitter connecting triode Q1 of triode Q2, triode Q1 connects two pole of pressure stabilizing
Another terminals of the collector of pipe Z1, resistance R4 and triode Q2, zener diode Z1 connect power cathode, and resistance R4's is another
One terminals connect positive pole.
2. ripple absorbing circuit according to claim 1, which is characterized in that in power supply output short-circuit, triode Q2 is opened
The output of dynamic shutdown triode Q1, reaches defencive function, when exporting not short-circuit, after capacitor C1 electricity discharges, triode Q1 is again
Starting works normally.
3. ripple absorbing circuit according to claim 2, which is characterized in that described to follow circuit include capacitor C1, pressure stabilizing
A terminals of diode Z2, diode D1 and resistance R3, capacitor C1 connect power cathode, another terminals of capacitor C1
The base stage of resistance R3, zener diode Z2 and triode Q3 are connected, another terminals of zener diode Z2 connect diode D1,
Another terminals of diode D1 connect positive pole.
4. ripple absorbing circuit according to claim 3, which is characterized in that the route of the positive pole and the power supply
Be connected with two branch lines between the route of cathode, one end of two branch lines connects positive pole, two branch lines it is another
End connection power cathode, wherein a branch line is equipped with resistance R2, another branch line is equipped with capacitor C2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611072407.0A CN106413204B (en) | 2016-11-29 | 2016-11-29 | A kind of ripple absorbing circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611072407.0A CN106413204B (en) | 2016-11-29 | 2016-11-29 | A kind of ripple absorbing circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106413204A CN106413204A (en) | 2017-02-15 |
| CN106413204B true CN106413204B (en) | 2018-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611072407.0A Active CN106413204B (en) | 2016-11-29 | 2016-11-29 | A kind of ripple absorbing circuit |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107404788B (en) * | 2017-07-20 | 2023-06-02 | 厦门通士达照明有限公司 | LED driving IC for synchronously realizing dimming and no stroboscopic effect |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201184569Y (en) * | 2008-04-22 | 2009-01-21 | 宜兴市石诺照明有限公司 | Small power LED sending light capable of automatically adjusting current |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2522068A2 (en) * | 2010-01-08 | 2012-11-14 | Holdip Limited | Improvements relating to rectifier circuits |
| US9622384B2 (en) * | 2011-11-22 | 2017-04-11 | Quantum Fuel Systems Llc | Fishtail packaging and cooling |
| JP6092604B2 (en) * | 2012-12-10 | 2017-03-08 | ローム株式会社 | DC / DC converter and control circuit thereof, power supply using the same, power adapter, and electronic device |
| CN103066817A (en) * | 2012-12-24 | 2013-04-24 | 成都芯源系统有限公司 | Ripple suppression circuit, power supply system thereof and ripple suppression method |
| CN202997919U (en) * | 2012-12-24 | 2013-06-12 | 成都芯源系统有限公司 | Ripple suppression circuit and power supply system thereof |
| CN104242620B (en) * | 2014-09-01 | 2017-07-28 | 成都芯源系统有限公司 | system with ripple suppression circuit and ripple suppression method thereof |
| CN204258608U (en) * | 2014-09-01 | 2015-04-08 | 成都芯源系统有限公司 | Ripple suppression circuit and circuit system comprising same |
| CN104486870A (en) * | 2014-11-25 | 2015-04-01 | 深圳市润杰明成照明科技有限公司 | Driving circuit and driving device of non-flicker LED (light emitting diode) lamp |
| CN206181464U (en) * | 2016-11-29 | 2017-05-17 | 东莞市达恩照明有限公司 | Line wave absorption circuit |
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2016
- 2016-11-29 CN CN201611072407.0A patent/CN106413204B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201184569Y (en) * | 2008-04-22 | 2009-01-21 | 宜兴市石诺照明有限公司 | Small power LED sending light capable of automatically adjusting current |
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| CN106413204A (en) | 2017-02-15 |
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