CN202565504U - LED circuit - Google Patents
LED circuit Download PDFInfo
- Publication number
- CN202565504U CN202565504U CN2012201808587U CN201220180858U CN202565504U CN 202565504 U CN202565504 U CN 202565504U CN 2012201808587 U CN2012201808587 U CN 2012201808587U CN 201220180858 U CN201220180858 U CN 201220180858U CN 202565504 U CN202565504 U CN 202565504U
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- Prior art keywords
- circuit
- power factor
- diode
- led
- electrochemical capacitor
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- Expired - Fee Related
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- 239000003990 capacitor Substances 0.000 claims description 20
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 102100028993 Hippocalcin-like protein 1 Human genes 0.000 description 1
- 101000838883 Homo sapiens Hippocalcin-like protein 1 Proteins 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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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
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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Abstract
The embodiment of the utility model discloses an LED (Light-emitting Diode) circuit. The LED circuit comprises orderly connected primary input circuit, rectifying circuit, high-power factor circuit, control circuit, conversion circuit and secondary output circuit connected with LED loads, thus, by the high-power factor circuit between the rectifying circuit and the control circuit, the power factor of the circuit is improved, the equipment utilization rate is increased, the power supply loss of the circuits is reduced, and the influence on the electric grid and the damage on the LED loads both are reduced.
Description
Technical field
The utility model relates to circuit field, relates in particular to a kind of led circuit.
Background technology
Power factor is to weigh a coefficient of electric equipment efficient height.Power factor is low, and it is big to explain that circuit is used for the reactive power of alternating magnetic field conversion, thereby has reduced usage ratio of equipment, has increased the line powering loss.In general led circuit; Generally can design elementary input circuit, rectification circuit, translation circuit, secondary output circuit and control circuit etc., thereby guarantee the normal operation of LED load, but because its power factor is lower; Reduce usage ratio of equipment, increased the line powering loss.
The utility model content
The utility model embodiment technical problem to be solved is, a kind of led circuit is provided, and to improve utilization rate of equipment and installations, reduces the line powering loss, and reduces the influence of electrical network is reached the infringement to the LED load.
In order to solve the problems of the technologies described above, the utility model embodiment has proposed a kind of led circuit, comprises successively elementary input circuit, rectification circuit, high power factor circuit, control circuit, the translation circuit that connects and is connected with the secondary output circuit of LED load.
Further; Said high power factor circuit comprises first diode, second diode, first electrochemical capacitor and second electrochemical capacitor; Said rectification circuit positive output end is connected to negative pole, the first electrochemical capacitor positive pole and the control circuit positive input terminal of said first diode respectively; Negative output terminal is connected to said second electrochemical capacitor negative pole and control circuit negative input end respectively; The said second electrochemical capacitor positive pole is connected to the negative pole of anodal and second diode of said first diode respectively, and the positive pole of said second diode is connected to the said first electrochemical capacitor negative pole.
The utility model embodiment is through providing a kind of led circuit; Comprise successively elementary input circuit, rectification circuit, high power factor circuit, control circuit, the translation circuit that connects and be connected with the secondary output circuit of LED load, like this, between rectification circuit and control circuit through high power factor circuit is set; Improved the power factor of circuit itself; Improved utilization rate of equipment and installations, reduced the line powering loss, and reduced the influence of electrical network is reached the infringement to the LED load.
Description of drawings
Fig. 1 is the primary structure figure of the led circuit of the utility model embodiment.
Fig. 2 is the structure chart of the led circuit of the utility model one specific embodiment.
Embodiment
Below in conjunction with accompanying drawing, embodiment is elaborated to the utility model.
Fig. 1 is the primary structure figure of the led circuit of the utility model embodiment; Comprise successively elementary input circuit 1, rectification circuit 2, high power factor circuit 3, control circuit 4, the translation circuit 5 that connects and be connected with the secondary output circuit 7 of LED load 6; Like this; Between rectification circuit 3 and control circuit 4,, improved the power factor of circuit itself, improved utilization rate of equipment and installations through high power factor circuit 3 is set; Reduced the line powering loss, and reduced the influence of electrical network is reached the infringement to the LED load.
In order to adopt simple high power factor circuit 3 to realize the raising of the power factor of circuit own, with reference to Fig. 2, wherein simple high power factor circuit 3 is realized as follows:
High power factor circuit 3 comprises the first diode D3, the second diode D2, the first electrochemical capacitor C2 and the second electrochemical capacitor C3; Rectification circuit 2 positive output ends are connected to negative pole, the first electrochemical capacitor C2 positive pole and control circuit 4 positive input terminals of the first diode D3 respectively; Negative output terminal is connected to the second electrochemical capacitor C3 negative pole and control circuit 4 negative input ends respectively; The second electrochemical capacitor C3 positive pole is connected to the negative pole of the anodal and second diode D2 of the first diode D3 respectively, and the positive pole of the second diode D2 is connected to the first electrochemical capacitor C2 negative pole.Adopt above-mentioned simple high power factor circuit 3 when realizing improving circuit power factor, to reduce and to realize cost, and simple.
Above-mentioned high power factor circuit 3 mainly is by two diode (D2; D3) and two electrochemical capacitors (C2 C3) forms, after line voltage is through F1, L1, L2 after rectifier bridge is to the BDR1 rectification to big capacitor C 2 and C3; The AC input current angle of flow can be increased to about 120 degree from about 60 degree; Make current waveform obtain revising, power factor can reach about 0.92 and 0.95, obtains a level and smooth direct current after the rectification and gives control chip U1 and triode Q1 work in the control circuit 4; The required secondary output circuit 7 of magnetic strength of the inside winding through transformer T1; Behind diode D5 rectifying and wave-filtering, obtain the electrical parameter of an initial design then, the electrical of output at this moment not only reduces the influence to electrical network, and reduces the infringement to the source load of LED lamp.
The above is the embodiment of the utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also are regarded as the protection range of the utility model.
Claims (2)
1. a led circuit is characterized in that, comprises successively elementary input circuit, rectification circuit, high power factor circuit, control circuit, the translation circuit that connects and is connected with the secondary output circuit of LED load.
2. led circuit as claimed in claim 1; It is characterized in that; Said high power factor circuit comprises first diode, second diode, first electrochemical capacitor and second electrochemical capacitor; Said rectification circuit positive output end is connected to negative pole, the first electrochemical capacitor positive pole and the control circuit positive input terminal of said first diode respectively; Negative output terminal is connected to said second electrochemical capacitor negative pole and control circuit negative input end respectively, and the said second electrochemical capacitor positive pole is connected to the negative pole of anodal and second diode of said first diode respectively, and the positive pole of said second diode is connected to the said first electrochemical capacitor negative pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201808587U CN202565504U (en) | 2012-04-25 | 2012-04-25 | LED circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201808587U CN202565504U (en) | 2012-04-25 | 2012-04-25 | LED circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202565504U true CN202565504U (en) | 2012-11-28 |
Family
ID=47215098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201808587U Expired - Fee Related CN202565504U (en) | 2012-04-25 | 2012-04-25 | LED circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202565504U (en) |
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2012
- 2012-04-25 CN CN2012201808587U patent/CN202565504U/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 | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shenzhen TEKA Technology Co., Ltd. Assignor: Zhumadian Antai Electronic Co., Ltd. Contract record no.: 2012440020418 Denomination of utility model: Driving method of LED (Light-Emitting Diode) circuit Granted publication date: 20121128 License type: Exclusive License Record date: 20121225 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20150425 |
|
| EXPY | Termination of patent right or utility model |