CN202385326U - Constant voltage and constant current power supply of light emitting diode (LED) - Google Patents
Constant voltage and constant current power supply of light emitting diode (LED) Download PDFInfo
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- CN202385326U CN202385326U CN 201120568740 CN201120568740U CN202385326U CN 202385326 U CN202385326 U CN 202385326U CN 201120568740 CN201120568740 CN 201120568740 CN 201120568740 U CN201120568740 U CN 201120568740U CN 202385326 U CN202385326 U CN 202385326U
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- power
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Abstract
The utility model discloses a constant voltage and constant current power supply of a light emitting diode (LED). The power supply comprises an input module, a rectifier module, a power conversion module, an output rectifier module, an energy storage and filtering module, an output module, a feedback module and a control module, wherein the input module is connected with the rectifier module; the power conversion module, the output rectifier module, the energy storage and filtering module and the output module are successively connected with one another; and the input end of the control module is connected with the output end of the output module through the feedback module, and the output end of the control module is connected with the power conversion module. The power supply is characterized by comprising a power factor correction module, and the power factor correction module is connected between the rectifier module and the power conversion module. The constant voltage and constant current power supply of the LED can effectively reduce the harmonic component of a circuit by using the power factor correction module, so that efficiency of the power supply can be improved, pollution caused by the power supply to a public power system can be avoided, and the power supply is safe and reliable.
Description
Technical field
The utility model relates to the power circuit field, specifically is a kind of LED constant voltage constant current power.
Background technology
The effect of LED constant voltage constant current power is to convert alternating current to direct current to supply the LED lamp to use.The LED constant voltage constant current power of prior art comprises input module, rectification module, power conversion module, output rectification module, energy storage filtration module, output module, feedback module and control module.Input module, rectification module, booster circuit module, power conversion module, output rectification module, energy storage filtration module link to each other with output module successively.The input of control module links to each other with the output of output module through feedback module, and the output of control module links to each other with power conversion module.The problem of its existence is alternating current to be converted in the galvanic process, because the existence of some non-linear elements; Comprise a large amount of harmonic waves in the circuit, and the existence of harmonic wave, not only reduced the power factor of input circuit; And, cause fault easily to the generation pollution of public power system.
The utility model content
It is high that the technical problem that the utility model will solve provides a kind of efficient, safe and reliable LED constant voltage constant current power.
In order to achieve the above object; The technical scheme that the utility model provides is: a kind of LED constant voltage constant current power comprises input module, rectification module, power conversion module, output rectification module, energy storage filtration module, output module, feedback module and control module; Input module links to each other with rectification module; Power conversion module, output rectification module, energy storage filtration module link to each other with output module successively; The input of control module links to each other with the output of output module through feedback module, and the output of control module links to each other with power conversion module; Also comprise power factor correction module, power factor correction module is connected between rectification module and the power conversion module.
After adopting technique scheme; The utility model compared with prior art; Have the following advantages: the utility model LED constant voltage constant current power can effectively reduce the harmonic components in the circuit through power factor correction module, thereby improves the efficient of power supply; Avoid the public power system is polluted, safe and reliable.
As improvement, be connected with the power supply supplementary module of 5V on the said control module.This structure can make things convenient for the supply of signal end power supply.
Description of drawings
Accompanying drawing 1 is the frame structure sketch map of the utility model LED constant voltage constant current power.
Shown in the figure, 1, the power supply supplementary module of input module 2, rectification module 3, power conversion module 4, output rectification module 5, energy storage filtration module 6, output module 7, feedback module 8, control module 9, power factor correction module 10,5V.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is done further explain.
Shown in accompanying drawing 1: a kind of LED constant voltage constant current power comprises input module 1, rectification module 2, power conversion module 3, output rectification module 4, energy storage filtration module 5, output module 6, feedback module 7 and control module 8.Input module 1 links to each other with rectification module 2.Power conversion module 3, output rectification module 4, energy storage filtration module 5 link to each other with output module 6 successively.The input of control module 8 links to each other with the output of output module 6 through feedback module 7, and the output of control module 8 links to each other with power conversion module 3.Also comprise power factor correction module 9, power factor correction module 9 is connected between rectification module 2 and the power conversion module 3.Be connected with the power supply supplementary module 10 of 5V on the said control module 8.
The above desirable embodiment according to the utility model is enlightenment, and through above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this utility model technological thought.The technical scope of this utility model is not limited to the content on the specification, must confirm its technical scope according to the claim scope.
Claims (2)
1. a LED constant voltage constant current power comprises input module (1), rectification module (2), power conversion module (3), output rectification module (4), energy storage filtration module (5), output module (6), feedback module (7) and control module (8); Input module (1) links to each other with rectification module (2); Power conversion module (3), output rectification module (4), energy storage filtration module (5) link to each other with output module (6) successively; The input of control module (8) links to each other with the output of output module (6) through feedback module (7), and the output of control module (8) links to each other with power conversion module (3); It is characterized in that, also comprise power factor correction module (9), power factor correction module (9) is connected between rectification module (2) and the power conversion module (3).
2. according to right 1 described LED constant voltage constant current power, it is characterized in that, be connected with the power supply supplementary module (10) of 5V on the said control module (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120568740 CN202385326U (en) | 2011-12-31 | 2011-12-31 | Constant voltage and constant current power supply of light emitting diode (LED) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120568740 CN202385326U (en) | 2011-12-31 | 2011-12-31 | Constant voltage and constant current power supply of light emitting diode (LED) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202385326U true CN202385326U (en) | 2012-08-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120568740 Expired - Fee Related CN202385326U (en) | 2011-12-31 | 2011-12-31 | Constant voltage and constant current power supply of light emitting diode (LED) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202385326U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104039493A (en) * | 2011-11-08 | 2014-09-10 | 林肯环球股份有限公司 | Welding power supply having converter performance monitoring |
| CN106686826A (en) * | 2017-02-09 | 2017-05-17 | 中山自信照明科技有限公司 | Led lighting power supply circuit |
-
2011
- 2011-12-31 CN CN 201120568740 patent/CN202385326U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104039493A (en) * | 2011-11-08 | 2014-09-10 | 林肯环球股份有限公司 | Welding power supply having converter performance monitoring |
| CN104039493B (en) * | 2011-11-08 | 2016-10-26 | 林肯环球股份有限公司 | There is the source of welding current supply of converter performance monitoring device |
| US9839967B2 (en) | 2011-11-08 | 2017-12-12 | Lincoln Global, Inc. | System and method for real-time computation and reporting of welding machine performance and metrics |
| US10857613B2 (en) | 2011-11-08 | 2020-12-08 | Lincoln Global, Inc. | System and method for real-time computation and reporting of welding machine performance and metrics |
| CN106686826A (en) * | 2017-02-09 | 2017-05-17 | 中山自信照明科技有限公司 | Led lighting power supply circuit |
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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 |
Granted publication date: 20120815 Termination date: 20141231 |
|
| EXPY | Termination of patent right or utility model |