CN202177065U - Low-power alternating current (AC) light-emitting diode (LED) light source - Google Patents
Low-power alternating current (AC) light-emitting diode (LED) light source Download PDFInfo
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- CN202177065U CN202177065U CN2011202186346U CN201120218634U CN202177065U CN 202177065 U CN202177065 U CN 202177065U CN 2011202186346 U CN2011202186346 U CN 2011202186346U CN 201120218634 U CN201120218634 U CN 201120218634U CN 202177065 U CN202177065 U CN 202177065U
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Abstract
A low-power alternating current (AC) light-emitting diode (LED) light source is characterized in that an AC power supply is connected with a constant current diode with constant current voltage stabilizing functions and then connected with the LED light source after being rectified through a group of diode bridge circuits. The AC LED light source with the improved design is stable in work, safe, reliable, low in production cost and very easy to manufacture and can be used as a civil light source. A parallel connection mode can be adopted to increase the power of the light source, and the light source is extremely easy to manufacture.
Description
Technical field the utility model relates to a kind of led light source, especially a kind of low-power type ACLED light source.
Background technology is present, is seen in the AC LED without power supply change-over device (driver) in document, with behind the AC rectification, to the technical scheme of LED power supply, and in order to prevent heavy current impact, in circuit, installs current-limiting resistance and thermistor additional for a kind of.This design, practical proof: not only can not protect the LED safe and stable operation effectively, and because of the device thermal losses is big, light-source system is in work under high temperature (greater than the 60 ℃) state for a long time, influences service life.
Summary of the invention in view of this, the improvement project that the design proposes is: AC power is through one group of diode-bridge circuit rectification after, and access has the current regulator diode of constant current voltage stabilizing function, connects led light source again.This improvement design, the actual proof of using can not only be protected the LED steady operation more effectively; And because of not producing excessive thermal losses basically, system is under 40 ℃ of states of low temperature, does long-time safe operation; The both power savings of whole light source system; Luminous efficiency improves, and has delayed the half-life again greatly, has increased the service life of light source effectively.This improvement design, because of light source works is stable, safe and reliable, low production cost is very easily made the small-power light fixture as civilian light source.Increase light source power like need, can adopt parallel way, expand, make very simple and easy.
Description of drawings
Fig. 1 is the utility model structural representation
Fig. 2 is the extended pattern light source example of embodiment-two sets in parallel operation of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described further with specific embodiment:
As shown in Figure 1, the electric energy of the D1-D4 bridge rectifier output of 4 silicon rectifier diode 1N4007 compositions to 90 light source assemblies that LED is integrated, provides the constant current voltage stabilizing via constant current tube D5.
This embodiment, operating current are 18-20MA, and the active power factor is 0.88, can make small-sized light fixtures such as 3W ball bubble.
As shown in Figure 2, the extended pattern ACLED light source of two sets in parallel operation, every group contains 90 LED crystal grain, and each inserts current regulator diode D6, D7, and every group of power output 3W can make the 6W bulb lamp.
Claims (1)
1. low-power type ACLED light source is characterized in that: AC power inserts the current regulator diode with constant current voltage stabilizing function after one group of diode-bridge circuit rectification, connect led light source again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202186346U CN202177065U (en) | 2011-06-27 | 2011-06-27 | Low-power alternating current (AC) light-emitting diode (LED) light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202186346U CN202177065U (en) | 2011-06-27 | 2011-06-27 | Low-power alternating current (AC) light-emitting diode (LED) light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202177065U true CN202177065U (en) | 2012-03-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202186346U Expired - Fee Related CN202177065U (en) | 2011-06-27 | 2011-06-27 | Low-power alternating current (AC) light-emitting diode (LED) light source |
Country Status (1)
| Country | Link |
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| CN (1) | CN202177065U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806988A (en) * | 2015-03-25 | 2015-07-29 | 蒋小明 | Integral encapsulation light-emitting module of ACLED (Alternating Current Light Emitting Diode) |
-
2011
- 2011-06-27 CN CN2011202186346U patent/CN202177065U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806988A (en) * | 2015-03-25 | 2015-07-29 | 蒋小明 | Integral encapsulation light-emitting module of ACLED (Alternating Current Light Emitting Diode) |
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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: 20120328 Termination date: 20140627 |
|
| EXPY | Termination of patent right or utility model |