CN206181464U - Line wave absorption circuit - Google Patents
Line wave absorption circuit Download PDFInfo
- Publication number
- CN206181464U CN206181464U CN201621293419.1U CN201621293419U CN206181464U CN 206181464 U CN206181464 U CN 206181464U CN 201621293419 U CN201621293419 U CN 201621293419U CN 206181464 U CN206181464 U CN 206181464U
- Authority
- CN
- China
- Prior art keywords
- circuit
- resistance
- audion
- triode
- short
- 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.)
- Withdrawn - After Issue
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Classifications
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- 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 utility model discloses a line wave absorption circuit, a line wave absorption circuit, including follower circuit and the short -circuit protection circuit who has auto -Turning, follower circuit automatically regulated triode Q3, short -circuit protection circuit includes resistance R1, resistance R4, zener diode Z1, triode Q2 and triode Q1, triode Q1's base is connected to resistance R1's a wiring end, triode Q2's base is connected to resistance R1's a wiring end, triode Q1's collecting electrode is connected to triode Q2's projecting pole, zener diode Z1 is connected to triode Q1's projecting pole, resistance R4 and triode Q2's collecting electrode, the negative pole of connecting is held in another wiring of zener diode Z1, positive is connected to another wiring end of resistance R4. Adjusting luminance nature is good in step with three -terminal bidirectional alternating current switch single -stage scheme for this circuit, and metal oxide semiconductor is not burnt in the output short circuit, moreover the single -stage power factor correction who does not adjust luminance, and the LED drive can all be imported this mould and reach no stroboscopic after fast.
Description
Technical field
This utility model is related to a kind of ripple absorbing circuit.
Background technology
Existing ripple absorbing circuit can not compatible three terminal bidirectional alternating-current switch single- stage PFC reach without stroboscopic, in light modulation not
Work, and without short-circuit protection function.
Utility model content
The purpose of this utility model is the drawbacks described above for prior art, there is provided a kind of ripple absorbing circuit.The 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 uncomfortable
The single-level power factor correction of light, LED drive can be input into this mould it is fast after reach without stroboscopic.
To solve the drawbacks described above of prior art, the technical scheme that this utility model is provided is：A kind of ripple absorbing circuit,
Including the follow circuit with automatic regulation function and short-circuit protection circuit, the follow circuit automatically adjusts audion Q3, short
Road protection circuit includes resistance R1, resistance R4, Zener diode Z1, audion Q2 and audion Q1, a terminals of resistance R1
The base stage of connecting triode Q1, the base stage of a terminals connecting triode Q2 of resistance R1, the emitter stage connection three of audion Q2
The colelctor electrode of pole pipe Q1, the emitter stage connection Zener diode Z1 of audion Q1, the colelctor electrode of resistance R4 and audion Q2, voltage stabilizing
Another terminals connection power cathode of diode Z1, another terminals connection positive source of resistance R4.
Improve as one kind of this utility model ripple absorbing circuit, in power supply output short-circuit, audion Q2 starts pass
The output of disconnected audion Q1, reaches defencive function, and when exporting not short-circuit, after electric capacity C1 electricity is discharged, audion Q1 is again started up
Normal work.
Improve as one kind of this utility model ripple absorbing circuit, the follow circuit includes electric capacity C1, the pole of voltage stabilizing two
Pipe Z2, diode D1 and resistance R3, the terminals connection power cathode of electric capacity C1, another terminals connection of electric capacity C1
The base stage of resistance R3, Zener diode Z2 and audion Q3, another terminals connection diode D1 of Zener diode Z2, two poles
Another terminals connection positive source of pipe D1.
As one kind improvement of this utility model ripple absorbing circuit, the circuit of the positive source and the power cathode
Circuit between be connected with two branch lines, one end connection positive source of two branch lines, the other end of two branch lines connects
Power cathode is connect, wherein a branch line is provided with resistance R2, another branch line is provided with electric capacity C2.
Compared with prior art, the utility model has the advantages that：This utility model using electric capacity C1 and Zener diode Z2,
The follow circuit of diode D1, resistance R3 composition automatically adjusts audion Q3, and the angle of flow of metal-oxide semiconductor (MOS) is realizing
With the net synchronization capability of TRIAC single-stage solutions, suppress output ripple, resistance R1, resistance R4, Zener diode Z1, audion Q2 and
Audion Q1 constitutes output short circuit protection function, and in output short-circuit, audion Q2 starts the output of shut-off audion Q1 and reaches
Protection, after only short circuit capacitance C1 electricity is not discharged in output normal work is again started up.
Description of the drawings
Just with specific embodiment this utility model and its beneficial technique effect are further retouched with reference to the accompanying drawings below
State, wherein：
Fig. 1 is this utility model electrical block diagram.
Specific embodiment
Below just with reference to the accompanying drawings and specific embodiment is further described to this utility model.
As shown in figure 1, a kind of ripple absorbing circuit, including the follow circuit with automatic regulation function and short-circuit protection electricity
Road, the follow circuit automatically adjusts audion Q3, short-circuit protection circuit include resistance R1, resistance R4, Zener diode Z1, three
Pole pipe Q2 and audion Q1, the base stage of a terminals connecting triode Q1 of resistance R1 a, terminals of resistance R1 connect three poles
The base stage of pipe Q2, the colelctor electrode of the emitter stage connecting triode Q1 of audion Q2, emitter stage connection voltage stabilizing two pole of audion Q1
The colelctor electrode of pipe Z1, resistance R4 and audion Q2, another terminals connection power cathode of Zener diode Z1, resistance R4's is another
One terminals connect positive source.
Preferably, in power supply output short-circuit, audion Q2 starts the output of shut-off audion Q1, reaches defencive function,
When exporting not short-circuit, after electric capacity C1 electricity is discharged, audion Q1 is again started up normal work.
Preferably, follow circuit include electric capacity C1, Zener diode Z2, diode D1 and resistance R3, one of electric capacity C1
Terminals connect power cathode, another terminals connection resistance R3 of electric capacity C1, the base of Zener diode Z2 and audion Q3
Pole, another terminals connection positive source of another terminals connection diode D1 of Zener diode Z2, diode D1.
Preferably, two branch lines are connected between the circuit of the circuit of positive source and the power cathode, two are propped up
One end connection positive source of circuit, the other end connection power cathode of two branch lines a, wherein branch line is provided with electricity
Resistance R2, another branch line is provided with electric capacity C2.
The utility model has the advantages that：This utility model is using electric capacity C1 and Zener diode Z2, diode D1, resistance R3
The follow circuit of composition automatically adjusts audion Q3, and the angle of flow of metal-oxide semiconductor (MOS) is realizing and TRIAC single-stage solutions
Net synchronization capability, suppress output ripple, resistance R1, resistance R4, Zener diode Z1, audion Q2 and audion Q1 composition output
Short-circuit protection function, in output short-circuit, audion Q2 starts the output of shut-off audion Q1 and reaches protection, only in output 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
Good, output short-circuit does not burn metal-oxide semiconductor (MOS), furthermore the single-level power factor correction not dimmed, and LED drives can be defeated
Enter this mould it is fast after reach without stroboscopic.
The announcement and teaching of book according to the above description, this utility model those skilled in the art can also be to above-mentioned reality
The mode of applying carries out appropriate change and modification.Therefore, this utility model is not limited to disclosed and described above being embodied as
Some modifications and changes of the present utility model should also be as falling in scope of the claims of the present utility model by mode.
Although additionally, some specific terms used in this specification, these terms merely for convenience of description, not to this reality
With any restriction of new composition.
Claims (4)
1. a kind of ripple absorbing circuit, it is characterised in that：Including the follow circuit with automatic regulation function and short-circuit protection electricity
Road, the follow circuit automatically adjusts audion Q3, short-circuit protection circuit include resistance R1, resistance R4, Zener diode Z1, three
Pole pipe Q2 and audion Q1, the base stage of a terminals connecting triode Q1 of resistance R1 a, terminals of resistance R1 connect three poles
The base stage of pipe Q2, the colelctor electrode of the emitter stage connecting triode Q1 of audion Q2, emitter stage connection voltage stabilizing two pole of audion Q1
The colelctor electrode of pipe Z1, resistance R4 and audion Q2, another terminals connection power cathode of Zener diode Z1, resistance R4's is another
One terminals connect positive source.
2. ripple absorbing circuit according to claim 1, it is characterised in that in power supply output short-circuit, audion Q2 is opened
The output of dynamic shut-off audion Q1, reaches defencive function, and when exporting not short-circuit, after electric capacity C1 electricity is discharged, audion Q1 is again
Start normal work.
3. ripple absorbing circuit according to claim 2, it is characterised in that the follow circuit includes electric capacity C1, voltage stabilizing
Diode Z2, diode D1 and resistance R3, the terminals connection power cathode of electric capacity C1, another terminals of electric capacity C1
Connection resistance R3, the base stage of Zener diode Z2 and audion Q3, another terminals connection diode D1 of Zener diode Z2,
Another terminals connection positive source of diode D1.
4. ripple absorbing circuit according to claim 3, it is characterised in that the circuit of the positive source and the power supply
Be connected with two branch lines between the circuit of negative pole, one end connection positive source of two branch lines, two branch lines it is another
End connection power cathode, wherein a branch line is provided with resistance R2, another branch line is provided with electric capacity C2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621293419.1U CN206181464U (en) | 2016-11-29 | 2016-11-29 | Line wave absorption circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621293419.1U CN206181464U (en) | 2016-11-29 | 2016-11-29 | Line wave absorption circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206181464U true CN206181464U (en) | 2017-05-17 |
Family
ID=60241773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621293419.1U Withdrawn - After Issue CN206181464U (en) | 2016-11-29 | 2016-11-29 | Line wave absorption circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206181464U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106413204A (en) * | 2016-11-29 | 2017-02-15 | 东莞市达恩照明有限公司 | Ripple absorption circuit |
-
2016
- 2016-11-29 CN CN201621293419.1U patent/CN206181464U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106413204A (en) * | 2016-11-29 | 2017-02-15 | 东莞市达恩照明有限公司 | Ripple absorption circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170517 Effective date of abandoning: 20181228 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20170517 Effective date of abandoning: 20181228 |