CN205921791U - Novel ultra -thin LED drive power supply - Google Patents
Novel ultra -thin LED drive power supply Download PDFInfo
- Publication number
- CN205921791U CN205921791U CN201620716955.1U CN201620716955U CN205921791U CN 205921791 U CN205921791 U CN 205921791U CN 201620716955 U CN201620716955 U CN 201620716955U CN 205921791 U CN205921791 U CN 205921791U
- Authority
- CN
- China
- Prior art keywords
- circuit
- power supply
- output
- control chip
- led driving
- 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.)
- Expired - Fee Related
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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]
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model discloses a novel ultra -thin LED drive power supply, it includes input circuit, rectification filter circuit, voltage transformation circuit, control chip, switch circuit and output circuit, input circuit, rectification filter circuit, voltage transformation circuit, control chip, switch circuit and output circuit be filter circuit 0 in order, output circuit includes a plurality of output filter circuit and a plurality of LED lamp clusters of being connected with a plurality of output filter circuit one -to -ones, and whether switch circuit is control chip's control the switching on of each output filter circuit of making decision.
Description
Technical field
This utility model is related to led driving power supply, specifically a kind of new extra-thin led driving power supply.
Background technology
Compared with traditional electric filament lamp, fluorescent lighting, led light source have using low-tension supply, power consumption less, the suitability
By force, stability is high, response time is short, environmentally safe, multicolor luminous etc. advantage, represents novel green, environmental protection lighting
Developing direction.Therefore LED light source gradually instead of conventional light source as primary illumination light source at this stage.
Wherein, the driving power supply (referred to as led driving power supply) of LED light source is that power supply supply is converted to specific voltage
Electric current is to drive the power supply changeover device that led lights.Under normal circumstances, led driving power supply includes input circuit, rectifying and wave-filtering electricity
Road, voltage conversion circuit and output circuit, general, the input of input circuit includes high pressure industrial frequency AC (i.e. civil power), low
Straightening stream, HVDC, low-voltage high-frequency exchange (as the output of electronic transformer) etc., then great majority are can be with led to output circuit
Forward voltage drop value changes and change the constant current source of voltage.
The type of drive of existing led driving power supply mainly has two kinds: one kind is that a constant pressure source supplies multiple constant-current sources, often
Individual constant-current source is individually powered to every road led, this mode, and combination is flexible, and a road led fault does not affect the work of other led,
But it is relatively costly.Another kind of type of drive is direct constant current-supplying, and led serial or parallel connection runs, and the advantage of this mode is into
This is lower, but very flexible, also to solve certain led fault, not affect the problem of other led operation.
Utility model content
Therefore, for above-mentioned problem, the utility model proposes a kind of new ultra-thin led driving power supply, to existing
The circuit of driving power supply improves, while improving its reliability, reduces cost, and solve the deficiency of prior art.
In order to solve above-mentioned technical problem, this utility model be employed technical scheme comprise that, a kind of new ultra-thin led drives
Galvanic electricity source, including input circuit, current rectifying and wave filtering circuit, voltage conversion circuit, control chip, on-off circuit and output circuit, defeated
Enter circuit, current rectifying and wave filtering circuit, voltage conversion circuit, control chip, on-off circuit and output circuit to be sequentially electrically connected with；Described
Output circuit includes multiple output filter circuits and the multiple LED lamp strings connecting one to one with multiple output filter circuits,
On-off circuit control chip control make decision each output filter circuit conducting whether.
Further, described on-off circuit is opened more-control switch using one and is realized that is to say, that the control of this on-off circuit is multiple
Loop, each loop corresponds to an output filter circuit.By arranging control chip and on-off circuit, realize multiple-channel output, enter
And realize the power supply to multichannel LED lamp string.LED lamp string is to be realized or by multiple LED lamp bead string by led lamp beads
The lamp string realized in parallel.
Further, this led driving power supply also includes temperature-compensation circuit, and temperature-compensation circuit preferably employs negative temperature system
The critesistor of number is realized, and temperature-compensation circuit, near LED lamp string, for the temperature of LED lamp string of sampling, and feeds back to control
Coremaking piece, thus realize the compensation to led temperature.
Wherein, control chip adopts led constant-current driven chip, it is preferred to use go power supply led driving chip to realize, for example
The driving chip of model cyt3000a.The peripheral components removing power supply led driving chip are extremely simplified, without high voltage electrolysis
Electric capacity and transformator, it is only necessary to an external resistance setting electric current, have High Power Factor, great cost performance simultaneously.
This utility model passes through such scheme, under the control of control chip and on-off circuit, realizes to multichannel LED lamp string
Individually powered, a road LED lamp string is faulty not to interfere with other roads, also adopt control chip to reduce whole circuit simultaneously
Cost.In addition realize its system structure simple, without transformator and high-voltage electrolytic capacitor, and using going power supply led to drive core
Piece, it has few peripheral cell, can save the space shared by electronic devices and components, and achievable led illumination scheme batch is turned into
Industry；Also there is temperature protection function simultaneously, not only act as overheat protector effect, also can reduce power consumption, extend this led driving power supply
Service life.To sum up, this utility model structure is simple, easy to use and quick it is easy to industrialization production, have well
Practicality.
Brief description
Fig. 1 is the theory diagram of embodiment 1 of the present utility model；
Fig. 2 is the theory diagram of embodiment 2 of the present utility model.
Specific embodiment
In conjunction with the drawings and specific embodiments, this utility model is further illustrated.
Embodiment 1
As a specific embodiment, referring to Fig. 1, a kind of new ultra-thin led driving power supply of the present utility model, bag
Include the input circuit being electrically connected with successively, current rectifying and wave filtering circuit, voltage conversion circuit, control chip, on-off circuit and output electricity
Road.
Wherein, on-off circuit leaves more-control switch using one and realizes, and output circuit includes multiple output filter circuits, Yi Jiyu
Multiple LED lamp strings that multiple output filter circuits connect one to one, on-off circuit control chip control make decision each defeated
Whether go out the conducting of filter circuit.That is, this on-off circuit controls multiple loops, the corresponding output filtering in each loop
Circuit.By arranging control chip and on-off circuit, realize multiple-channel output, and then realize the power supply to multichannel LED lamp string.led
Lamp string is the lamp string realized or realized by multiple led lamp beads connection in series-parallel by led lamp beads.
Input circuit can be high pressure industrial frequency AC (i.e. civil power) input, or low-voltage direct input, or HVDC
Input, or the arbitrary combination of low-voltage high-frequency exchange (as the output of electronic transformer) or above-mentioned several input.
Current rectifying and wave filtering circuit is used for carrying out rectifying and wave-filtering process to the circuit of input.Voltage conversion circuit is defeated by rectifying and wave-filtering
The voltage transformation going out is required voltage.
Embodiment 2
In the present embodiment, as different from Example 1, referring to Fig. 2, this led driving power supply also includes temperature-compensation circuit,
The output of temperature-compensation circuit is terminated at the input of control chip.
The critesistor that temperature-compensation circuit preferably employs negative temperature coefficient is realized, and temperature-compensation circuit is located at LED lamp string
Near, for the temperature of LED lamp string of sampling, and feed back to control chip, thus realizing the compensation to led temperature.In addition, passing through
This temperature-compensation circuit may also function as overheat protector effect, and control chip obtains the temperature of LED lamp string by temperature-compensation circuit,
If above a preset value, then corresponding for this LED lamp string on-off circuit connecting cuts out, or by whole led driving power supply
Close, so that the power consumption of whole circuit greatly reduces, it is achieved thereby that the duplicate protection of temperature.
Wherein, in above-described embodiment, control chip adopts led constant-current driven chip, it is preferred to use go power supply led to drive
Chip is realized, the driving chip of such as model cyt3000a.The peripheral components removing power supply led driving chip are extremely simplified,
Without high-voltage electrolytic capacitor and transformator it is only necessary to an external resistance setting electric current, there is High Power Factor, great property simultaneously
Valency ratio.
Although specifically show and describe this utility model in conjunction with preferred embodiment, those skilled in the art should
This is understood, in the spirit and scope of the present utility model being limited without departing from appended claims, in form and details
On this utility model can be made a variety of changes, be protection domain of the present utility model.
Claims (5)
1. a kind of new ultra-thin led driving power supply it is characterised in that: include input circuit, current rectifying and wave filtering circuit, voltage transformation
Circuit, control chip, on-off circuit and output circuit, input circuit, current rectifying and wave filtering circuit, voltage conversion circuit, control chip,
On-off circuit and output circuit are sequentially electrically connected with；Described output circuit includes multiple output filter circuits and defeated with multiple
Go out multiple LED lamp strings that filter circuit connects one to one, on-off circuit control chip control make decision each output filtering
Whether the conducting of circuit.
2. ultra-thin led driving power supply according to claim 1 it is characterised in that: described on-off circuit opens many controls using one
Switch is realized.
3. ultra-thin led driving power supply according to claim 1 and 2 it is characterised in that: this led driving power supply also includes temperature
Degree compensation circuit, the temperature of temperature-compensation circuit sampling LED lamp string, and feed back to control chip.
4. ultra-thin led driving power supply according to claim 3 it is characterised in that: described temperature-compensation circuit adopts subzero temperature
The critesistor of degree coefficient is realized.
5. ultra-thin led driving power supply according to claim 1 and 2 it is characterised in that: described control chip is using removing power supply
Change led driving chip to realize.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620716955.1U CN205921791U (en) | 2016-07-08 | 2016-07-08 | Novel ultra -thin LED drive power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620716955.1U CN205921791U (en) | 2016-07-08 | 2016-07-08 | Novel ultra -thin LED drive power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205921791U true CN205921791U (en) | 2017-02-01 |
Family
ID=57875541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620716955.1U Expired - Fee Related CN205921791U (en) | 2016-07-08 | 2016-07-08 | Novel ultra -thin LED drive power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205921791U (en) |
-
2016
- 2016-07-08 CN CN201620716955.1U patent/CN205921791U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170201 Termination date: 20190708 |