CN204681655U - A kind of small-power new capacitance-resistance driving LED one lamp plate - Google Patents
A kind of small-power new capacitance-resistance driving LED one lamp plate Download PDFInfo
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- CN204681655U CN204681655U CN201520447374.8U CN201520447374U CN204681655U CN 204681655 U CN204681655 U CN 204681655U CN 201520447374 U CN201520447374 U CN 201520447374U CN 204681655 U CN204681655 U CN 204681655U
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Abstract
A kind of small-power new capacitance-resistance driving LED one lamp plate, is made up of aluminium base, rectifier bridge, current-limiting resistance, filter capacitor, LED lamp bead string, and rectifier bridge, current-limiting resistance, filter capacitor, LED lamp bead string are jointly welded on aluminium base and form one lamp plate; Have employed scheme of the present utility model, overcome the existing shortcoming overcoming old-fashioned capacitance-resistance LED one lamp plate poor reliability, be particularly suitable for the low-power LED lamp of less than 5 watts making low cost.
Description
Art
The utility model relates to a kind of low-power LED one lamp plate, the LED one lamp plate of the especially new capacitance-resistance driving of the utilization of less than 5 watts.
Background technology
At present, LED has started to popularize, and the structure of LED is generally made up of power supply, lamp plate, shell three part, and LED power can be divided into three major types usually, and one is switch constant-current source, and two is linear IC power supplys, and three is resistance-capacitance depressurization power supplys.Although switch constant-current source stable performance, shortcoming is that circuit is complicated, price is higher, and original paper is many, also substantially lamp plate and Switching Power Supply is not integrated in the one lamp plate on one piece of lamp plate on the market, a linear IC power acquisition IC or multiple IC distributes voltage, electronic devices and components kind is less, the one lamp plate having this kind of power supply and lamp pearl to integrate on the market is sold, through the application of our company's long period, find that this lamp plate lamp pearl easily damages, and linear older than capacitance-resistance driving power of IC power supply cost is high, old-fashioned capacitance-resistance driving power cost is minimum, original paper is less, but it is extremely unreliable, have in market and adopt CBB capacitance decompression, the one lamp plate of electrochemical capacitor filtering is sold, be sold to client for a long time through our company to use, find that failure rate is very large, sometimes lamp pearl can be burnt once switch, visible reliability extreme difference.For this reason, our company is that 201520439963.1 " a kind of high reliability High Power Factor LED capacitance-resistance driving powers " solve that old-fashioned capacitance-resistance driving power power factor is little, the problem of reliability extreme difference in the application number that on June 25th, 2015 applies for.
Utility model content
In order to overcome the shortcoming of old-fashioned capacitance-resistance LED one lamp plate poor reliability, the utility model proposes a kind of small-power new capacitance-resistance driving LED one lamp plate with head it off, its good effect is: adopt a kind of small-power new capacitance-resistance driving LED one lamp plate, develop the advantage that capacitance-resistance drives one lamp plate power unit with low cost, substantially increase the reliability of LED one lamp plate simultaneously, reduce the light decay of LED chip, enable the life-span of LED one lamp plate reach very long.
The utility model solves the technical scheme that its technical problem adopts: a kind of small-power of the present utility model new capacitance-resistance driving LED one lamp plate, be made up of aluminium base, rectifier bridge, current-limiting resistance, filter capacitor, LED lamp bead string, rectifier bridge, current-limiting resistance, filter capacitor, LED lamp bead string are jointly welded on aluminium base and form one lamp plate, the utility model principle is very simple, but be used on one lamp plate, its key is exactly that the operating current provided after current-limiting resistance current limliting far below the rated current of LED lamp bead string, will could obtain high reliability, extra long life.
The technical solution adopted in the utility model will coordinate accompanying drawing to elaborate in a particular embodiment.
Accompanying drawing explanation
Here is brief description of drawings.
Fig. 1 is a kind of small-power of the present utility model new capacitance-resistance driving LED integrated lamp plate structure schematic diagram.
1. aluminium bases, 2. rectifier bridge, 3. current-limiting resistance, 4. filter capacitor in figure, 5.LED lamp pearl string.
Fig. 2 is a kind of small-power of the present utility model new capacitance-resistance driving LED one lamp plate circuit theory diagrams.
2. rectifier bridges, 3. current-limiting resistance, 4. filter capacitor in figure, 5.LED lamp pearl string.6. AC power.
Embodiment
In the embodiment in figure 1, we further illustrate the utility model to implement a kind of small-power new capacitance-resistance driving LED one lamp plate:
Fig. 1 is a kind of small-power of the present utility model new capacitance-resistance driving LED integrated lamp plate structure schematic diagram, and in figure, aluminium base 1 is the wiring board of lamp plate, selects the aluminium base of good heat dissipation effect, is beneficial to the prolongation lamp pearl life-span; Aluminium base 1 is welded with rectifier bridge 2, and rectifier bridge 2 selects 600V, 0.5 peace large chip paster full-bridge, is welded on relevant position on aluminium base 1; Current-limiting resistance 3 selects 2512 Chip-Rs of about 1W, 3K to be welded on aluminium base relevant position; Filter capacitor 4 selects 1812 patch capacitors of 250V, 1uF to be welded on relevant position on aluminium base 1; LED lamp bead string 5 selects 21, the 5730LED lamp pearl series connection of 9V, 0.5W, rated operational current 60mA, rated operational voltage about 180v, suitably select current-limiting resistance 3, LED lamp bead operating current can be made at about 18mA, far below the rated operational current of the 60mA of LED lamp bead, this is that one lamp plate of the present utility model obtains low light attenuation, the key of extra long life, operating current selects very little simultaneously, can ensure that civil power instantaneous pressure causes lamp pearl to damage after operating current also can not be caused to substantially exceed the rated current of lamp pearl.
Fig. 2 is a kind of small-power of the present utility model new capacitance-resistance driving LED one lamp plate circuit theory diagrams.In figure, AC power 6 is civil power, by current-limiting resistance 3 current limliting, then by rectifier bridge 2 rectification, filter capacitor 4 filtering, is then supplied to LED lamp bead string 5.
The utility model power unit only have employed three original papers, use original paper minimum in all LED drive power, also few several original paper is driven than old-fashioned capacitance-resistance, original paper is fewer, occur that the probability that original paper damages is fewer, circuit is just more reliable, because LED lamp bead string 5 selects plurality of LEDs lamp pearl to connect, its operating voltage is at about 180V, being equivalent to most of electricity is used to luminous, current-limiting resistance only employs small part electricity, so whole efficiency is still higher, reach as high as more than 80%, the efficiency of proximity switch power supply, certainly, filter capacitor is the bigger the better, when conditions permit, can select larger as far as possible, although the utility model is than the common LED lamp of equal-wattage, lamp pearl consumption increases, but its life-span is far longer than the life-span of common LED lamp, long-range average unit cost will be lower, also reduce the cost of the energy changing lamp and the increase of changing lamp, be particularly suitable for the occasion needing long-term illumination.
Claims (1)
1. a small-power new capacitance-resistance driving LED one lamp plate, be made up of aluminium base (1), rectifier bridge (2), current-limiting resistance (3), filter capacitor (4), LED lamp bead string (5), it is characterized in that: rectifier bridge (2), current-limiting resistance (3), filter capacitor (4), LED lamp bead string (5) are welded on aluminium base (1) upper formation one lamp plate jointly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520447374.8U CN204681655U (en) | 2015-06-28 | 2015-06-28 | A kind of small-power new capacitance-resistance driving LED one lamp plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520447374.8U CN204681655U (en) | 2015-06-28 | 2015-06-28 | A kind of small-power new capacitance-resistance driving LED one lamp plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204681655U true CN204681655U (en) | 2015-09-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520447374.8U Expired - Fee Related CN204681655U (en) | 2015-06-28 | 2015-06-28 | A kind of small-power new capacitance-resistance driving LED one lamp plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204681655U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108882434A (en) * | 2018-03-20 | 2018-11-23 | 海宁市鑫诚电子有限公司 | A kind of LED bulb based on MBL driving circuit |
-
2015
- 2015-06-28 CN CN201520447374.8U patent/CN204681655U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108882434A (en) * | 2018-03-20 | 2018-11-23 | 海宁市鑫诚电子有限公司 | A kind of LED bulb based on MBL driving 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150930 Termination date: 20180628 |