CN202998599U - Driving power supply for LED lamp - Google Patents
Driving power supply for LED lamp Download PDFInfo
- Publication number
- CN202998599U CN202998599U CN 201220709069 CN201220709069U CN202998599U CN 202998599 U CN202998599 U CN 202998599U CN 201220709069 CN201220709069 CN 201220709069 CN 201220709069 U CN201220709069 U CN 201220709069U CN 202998599 U CN202998599 U CN 202998599U
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- load
- power supply
- output module
- conversion module
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Abstract
The utility model relates to a driving power supply for an LED lamp, thereby solving problems that the existing LED lamp power supply has a low utilization rate and other lamps cannot work normally when one lamp does not work. The technical scheme for solution is characterized in that the driving power supply comprises an AC/DC conversion module, a DC/DC conversion module, a single-chip microcomputer, and a load series connection output module. Specifically, the AC/DC conversion module is connected with an external power supply and the DC/DC conversion module by leads; the DC/DC conversion module is connected with the single-chip microcomputer and the load series connection output module by leads; the single-chip microcomputer is connected with the load series connection output module; and one end of the DC/DC conversion module is grounded. Besides, the load series connection output module includes three LED loads in series connection; and each of the LED loads is connected in parallel with a load detection circuit. According to the utility model, the provided driving power supply has advantages of novelty and uniqueness, simple structure and long service life.
Description
Technical field
The utility model relates to supply unit, particularly a kind of driving power for the LED lamp.
Background technology
modern society, energy-conserving and environment-protective have become the topic that people more and more pay close attention to, LED is with safe, less energy consumption, applicability is strong, can be multicolor luminous, antidetonation, life-span is long, environmental protection, the advantages such as fast response time are more and more extensive in the application of lighting field as new type light source, the power supply of performance but the LED lamp is also had relatively high expectations simultaneously, the normal operation of guarantee LED, what occur in early days is the serial LED Switching Power Supply, its main circuit topology and linear power supply are similar, but power transistor works on off state, power circuit is connected with the LED load, traditional way is that switch transformer adopts 3 windings, every group of independently-powered LED that gives, but because LED needs constant current-supplying, namely every group all add a constant current control chip, and the conversion efficiency of constant current chip is 90% at present, general switch power efficiency is 85% such words, it is very low that actual efficiency=85% * 90%=76.5% can fall, and adopt when connecting, after a lamp breaks down, other lamp can not normally use.
Summary of the invention
For above-mentioned situation, for overcoming the defective of prior art, the purpose of the utility model just is to provide a kind of driving power for the LED lamp, can effectively solve the problem that after existing LED lamp power supply service efficiency is hanged down and a lamp breaks down, other lamp can not normally use.
The technical scheme of its solution is, comprise AC/DC modular converter, DC/DC modular converter, single-chip microcomputer and load series connection output module, the AC/DC modular converter is connected with the DC/DC modular converter with external power supply through wire, the DC/DC modular converter is connected with load series connection output module with single-chip microcomputer through wire, single-chip microcomputer is connected with load series connection output module, DC/DC modular converter one end ground connection, load series connection output module comprises the LED load of three series connection, each LED load load detecting circuit in parallel.
The utility model is novel unique, simple in structure, long service life.
Description of drawings
Fig. 1 is circuit connection diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Provided by Fig. 1, the utility model comprises AC/DC modular converter, DC/DC modular converter, single-chip microcomputer and load series connection output module, AC/DC modular converter 1 is connected with DC/DC modular converter 2 with external power supply 5 through wire, DC/DC modular converter 2 is connected with load series connection output module 4 with single-chip microcomputer 3 through wire, single-chip microcomputer 3 is connected with load series connection output module 4, DC/DC modular converter 2 one end ground connection, load series connection output module 4 comprises the LED load of three series connection, each LED load load detecting circuit in parallel.
when the utility model uses, after connecting AC power, power supply is started working, output 72V direct voltage, control due to single-chip microcomputer 3, the not direct supply load of this voltage, but power to the load through time-delay in 1 second, avoid booting moment to the impact of load LED, voltage on each lamp is the 20V left and right, the utility model has increased load detecting circuit, load detecting circuit is when a load breaks down therein, with the load short circuits that breaks down, guarantee the connection of whole circuit, owing to being constant current-supplying, so electric current is constant, whole output voltage is and then lowered, all the other LED do not damage.
The utility model is novel unique, simple in structure, long service life.
Claims (1)
1. driving power that is used for the LED lamp, comprise the AC/DC modular converter, the DC/DC modular converter, single-chip microcomputer and load series connection output module, it is characterized in that, AC/DC modular converter (1) is connected with DC/DC modular converter (2) with external power supply (5) through wire, DC/DC modular converter (2) is connected with load series connection output module (4) with single-chip microcomputer (3) through wire, single-chip microcomputer (3) is connected with load series connection output module (4), DC/DC modular converter (2) one end ground connection, load series connection output module (4) comprises the LED load of three series connection, each LED load load detecting circuit in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220709069 CN202998599U (en) | 2012-12-20 | 2012-12-20 | Driving power supply for LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220709069 CN202998599U (en) | 2012-12-20 | 2012-12-20 | Driving power supply for LED lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202998599U true CN202998599U (en) | 2013-06-12 |
Family
ID=48569720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220709069 Expired - Fee Related CN202998599U (en) | 2012-12-20 | 2012-12-20 | Driving power supply for LED lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202998599U (en) |
-
2012
- 2012-12-20 CN CN 201220709069 patent/CN202998599U/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 |
Granted publication date: 20130612 Termination date: 20151220 |
|
| EXPY | Termination of patent right or utility model |